package config_test

import (
	"fmt"
	"os"
	"path/filepath"
	"strings"
	"testing"

	"iop/packages/go/config"
)

func TestLoadEdge_EdgeIdentity(t *testing.T) {
	dir := t.TempDir()
	f := filepath.Join(dir, "edge.yaml")
	yaml := "server:\n  listen: \"0.0.0.0:9090\"\nedge:\n  id: \"edge-dgx-group\"\n  name: \"DGX Group\"\n"
	if err := os.WriteFile(f, []byte(yaml), 0o600); err != nil {
		t.Fatalf("write yaml: %v", err)
	}
	cfg, err := config.LoadEdge(f)
	if err != nil {
		t.Fatalf("load: %v", err)
	}
	if cfg.Edge.ID != "edge-dgx-group" {
		t.Fatalf("expected edge.id=%q, got %q", "edge-dgx-group", cfg.Edge.ID)
	}
	if cfg.Edge.Name != "DGX Group" {
		t.Fatalf("expected edge.name=%q, got %q", "DGX Group", cfg.Edge.Name)
	}
}

func TestLoadEdge_EdgeIdentityEmptyByDefault(t *testing.T) {
	dir := t.TempDir()
	f := filepath.Join(dir, "edge.yaml")
	if err := os.WriteFile(f, []byte("server:\n  listen: \"0.0.0.0:9090\"\n"), 0o600); err != nil {
		t.Fatalf("write yaml: %v", err)
	}
	cfg, err := config.LoadEdge(f)
	if err != nil {
		t.Fatalf("load: %v", err)
	}
	if cfg.Edge.ID != "" || cfg.Edge.Name != "" {
		t.Fatalf("expected empty edge identity by default, got id=%q name=%q", cfg.Edge.ID, cfg.Edge.Name)
	}
}

func TestEdgeRefreshDefaults(t *testing.T) {
	dir := t.TempDir()
	f := filepath.Join(dir, "edge.yaml")
	if err := os.WriteFile(f, []byte("server:\n  listen: \"0.0.0.0:9090\"\n"), 0o600); err != nil {
		t.Fatalf("write yaml: %v", err)
	}
	cfg, err := config.LoadEdge(f)
	if err != nil {
		t.Fatalf("load: %v", err)
	}
	if cfg.Refresh.Enabled {
		t.Fatalf("expected refresh.enabled=false by default, got true")
	}
	if cfg.Refresh.Listen != "127.0.0.1:19093" {
		t.Fatalf("expected refresh.listen=%q by default, got %q", "127.0.0.1:19093", cfg.Refresh.Listen)
	}
}

func TestEdgeRefreshUnmarshal(t *testing.T) {
	dir := t.TempDir()
	f := filepath.Join(dir, "edge.yaml")
	yaml := "server:\n  listen: \"0.0.0.0:9090\"\nrefresh:\n  enabled: true\n  listen: \"127.0.0.1:0\"\n"
	if err := os.WriteFile(f, []byte(yaml), 0o600); err != nil {
		t.Fatalf("write yaml: %v", err)
	}
	cfg, err := config.LoadEdge(f)
	if err != nil {
		t.Fatalf("load: %v", err)
	}
	if !cfg.Refresh.Enabled {
		t.Fatalf("expected refresh.enabled=true")
	}
	if cfg.Refresh.Listen != "127.0.0.1:0" {
		t.Fatalf("expected refresh.listen=%q, got %q", "127.0.0.1:0", cfg.Refresh.Listen)
	}
}

func TestLoadEdge_ConsoleTimeoutDefault(t *testing.T) {
	dir := t.TempDir()
	f := filepath.Join(dir, "edge.yaml")
	if err := os.WriteFile(f, []byte("server:\n  listen: \"0.0.0.0:9090\"\n"), 0o600); err != nil {
		t.Fatalf("write yaml: %v", err)
	}

	cfg, err := config.LoadEdge(f)
	if err != nil {
		t.Fatalf("load: %v", err)
	}
	if cfg.Console.TimeoutSec != 120 {
		t.Fatalf("expected default timeout_sec=120, got %d", cfg.Console.TimeoutSec)
	}
	if cfg.Console.Adapter != "cli" {
		t.Fatalf("expected default console.adapter=%q, got %q", "cli", cfg.Console.Adapter)
	}
	if cfg.Console.ResolveTarget() != "claude" {
		t.Fatalf("expected default console.target=%q, got %q", "claude", cfg.Console.ResolveTarget())
	}
}

func TestLoadEdge_OpenAIDefaults(t *testing.T) {
	dir := t.TempDir()
	f := filepath.Join(dir, "edge.yaml")
	if err := os.WriteFile(f, []byte("server:\n  listen: \"0.0.0.0:9090\"\n"), 0o600); err != nil {
		t.Fatalf("write yaml: %v", err)
	}

	cfg, err := config.LoadEdge(f)
	if err != nil {
		t.Fatalf("load: %v", err)
	}
	if cfg.OpenAI.Enabled {
		t.Fatal("expected openai.enabled=false by default")
	}
	if cfg.OpenAI.Listen != "0.0.0.0:18081" {
		t.Fatalf("expected openai.listen default, got %q", cfg.OpenAI.Listen)
	}
	if cfg.OpenAI.BearerToken != "" {
		t.Fatalf("expected openai.bearer_token empty by default, got %q", cfg.OpenAI.BearerToken)
	}
	if cfg.OpenAI.Adapter != "ollama" {
		t.Fatalf("expected openai.adapter=%q, got %q", "ollama", cfg.OpenAI.Adapter)
	}
	if cfg.OpenAI.SessionID != "openai" {
		t.Fatalf("expected openai.session_id=%q, got %q", "openai", cfg.OpenAI.SessionID)
	}
	if cfg.OpenAI.TimeoutSec != 120 {
		t.Fatalf("expected openai.timeout_sec=120, got %d", cfg.OpenAI.TimeoutSec)
	}
	if !cfg.OpenAI.StrictOutput {
		t.Fatal("expected openai.strict_output=true")
	}
	if cfg.OpenAI.StrictStreamBuffer {
		t.Fatal("expected openai.strict_stream_buffer=false")
	}
	if cfg.Metrics.Port != 19092 {
		t.Fatalf("expected metrics.port=19092, got %d", cfg.Metrics.Port)
	}
	if cfg.LongContextThresholdTokens != 100000 {
		t.Fatalf("expected long_context_threshold_tokens=100000 by default, got %d", cfg.LongContextThresholdTokens)
	}
}

func TestLoadEdge_LongContextThresholdOverride(t *testing.T) {
	dir := t.TempDir()
	f := filepath.Join(dir, "edge.yaml")
	yaml := `
server:
  listen: "0.0.0.0:9090"
long_context_threshold_tokens: 120000
`
	if err := os.WriteFile(f, []byte(yaml), 0o600); err != nil {
		t.Fatalf("write yaml: %v", err)
	}
	cfg, err := config.LoadEdge(f)
	if err != nil {
		t.Fatalf("load: %v", err)
	}
	if cfg.LongContextThresholdTokens != 120000 {
		t.Fatalf("expected long_context_threshold_tokens=120000, got %d", cfg.LongContextThresholdTokens)
	}
}

func TestLoadEdge_LongContextThresholdRejectsNonPositive(t *testing.T) {
	for _, tc := range []struct {
		name  string
		value int
	}{
		{name: "zero", value: 0},
		{name: "negative", value: -1},
	} {
		t.Run(tc.name, func(t *testing.T) {
			dir := t.TempDir()
			f := filepath.Join(dir, "edge.yaml")
			yaml := fmt.Sprintf(`
server:
  listen: "0.0.0.0:9090"
long_context_threshold_tokens: %d
`, tc.value)
			if err := os.WriteFile(f, []byte(yaml), 0o600); err != nil {
				t.Fatalf("write yaml: %v", err)
			}
			_, err := config.LoadEdge(f)
			if err == nil {
				t.Fatal("expected error for non-positive long_context_threshold_tokens")
			}
			if !strings.Contains(err.Error(), "long_context_threshold_tokens must be positive") {
				t.Fatalf("expected error mentioning positive threshold, got %v", err)
			}
		})
	}
}

func TestLoadEdge_OpenAIOverride(t *testing.T) {
	dir := t.TempDir()
	f := filepath.Join(dir, "edge.yaml")
	yaml := `
server:
  listen: "0.0.0.0:9090"
openai:
  enabled: true
  listen: "127.0.0.1:8088"
  bearer_token: "secret-token"
  node: "node0"
  adapter: "ollama"
  target: "llama-test"
  models:
    - "llama-test"
  session_id: "cline"
  timeout_sec: 45
  strict_output: false
  strict_stream_buffer: true
`
	if err := os.WriteFile(f, []byte(yaml), 0o600); err != nil {
		t.Fatalf("write yaml: %v", err)
	}

	cfg, err := config.LoadEdge(f)
	if err != nil {
		t.Fatalf("load: %v", err)
	}
	if !cfg.OpenAI.Enabled {
		t.Fatal("expected openai.enabled=true")
	}
	if cfg.OpenAI.Listen != "127.0.0.1:8088" || cfg.OpenAI.NodeRef != "node0" {
		t.Fatalf("unexpected openai routing config: %+v", cfg.OpenAI)
	}
	if cfg.OpenAI.BearerToken != "secret-token" {
		t.Fatalf("expected openai.bearer_token=%q, got %q", "secret-token", cfg.OpenAI.BearerToken)
	}
	if cfg.OpenAI.Target != "llama-test" || len(cfg.OpenAI.Models) != 1 || cfg.OpenAI.Models[0] != "llama-test" {
		t.Fatalf("unexpected openai model config: %+v", cfg.OpenAI)
	}
	if cfg.OpenAI.SessionID != "cline" || cfg.OpenAI.TimeoutSec != 45 {
		t.Fatalf("unexpected openai execution config: %+v", cfg.OpenAI)
	}
	if cfg.OpenAI.StrictOutput {
		t.Fatalf("unexpected openai strict output config: %+v", cfg.OpenAI)
	}
	if !cfg.OpenAI.StrictStreamBuffer {
		t.Fatalf("unexpected openai strict stream buffer config: %+v", cfg.OpenAI)
	}
}

func TestLoadEdge_OllamaContextSize(t *testing.T) {
	dir := t.TempDir()
	f := filepath.Join(dir, "edge.yaml")
	yaml := `
server:
  listen: "0.0.0.0:9090"
nodes:
  - alias: "local"
    adapters:
      ollama:
        enabled: true
        base_url: "http://192.168.0.91:11434"
        context_size: 262144
        capacity: 3
        max_queue: 8
        queue_timeout_ms: 1500
        request_timeout_ms: 30000
`
	if err := os.WriteFile(f, []byte(yaml), 0o600); err != nil {
		t.Fatalf("write yaml: %v", err)
	}

	cfg, err := config.LoadEdge(f)
	if err != nil {
		t.Fatalf("load: %v", err)
	}
	ollama := cfg.Nodes[0].Adapters.Ollama
	if !ollama.Enabled {
		t.Fatal("expected ollama.enabled=true")
	}
	if ollama.BaseURL != "http://192.168.0.91:11434" || ollama.ContextSize != 262144 {
		t.Fatalf("unexpected ollama config: %+v", ollama)
	}
	if ollama.Capacity != 3 || ollama.MaxQueue != 8 || ollama.QueueTimeoutMS != 1500 || ollama.RequestTimeoutMS != 30000 {
		t.Fatalf("unexpected ollama queue config: %+v", ollama)
	}
}

func TestLoadEdge_ConsoleSessionDefaults(t *testing.T) {
	dir := t.TempDir()
	f := filepath.Join(dir, "edge.yaml")
	if err := os.WriteFile(f, []byte("server:\n  listen: \"0.0.0.0:9090\"\n"), 0o600); err != nil {
		t.Fatalf("write yaml: %v", err)
	}
	cfg, err := config.LoadEdge(f)
	if err != nil {
		t.Fatalf("load: %v", err)
	}
	if cfg.Console.SessionID != "default" {
		t.Fatalf("expected default session_id=%q, got %q", "default", cfg.Console.SessionID)
	}
	if cfg.Console.Background {
		t.Fatal("expected default background=false")
	}
}

func TestLoadEdge_ConsoleSessionOverride(t *testing.T) {
	dir := t.TempDir()
	f := filepath.Join(dir, "edge.yaml")
	yaml := "server:\n  listen: \"0.0.0.0:9090\"\nconsole:\n  session_id: \"worker-1\"\n  background: true\n"
	if err := os.WriteFile(f, []byte(yaml), 0o600); err != nil {
		t.Fatalf("write yaml: %v", err)
	}
	cfg, err := config.LoadEdge(f)
	if err != nil {
		t.Fatalf("load: %v", err)
	}
	if cfg.Console.SessionID != "worker-1" {
		t.Fatalf("expected session_id=%q, got %q", "worker-1", cfg.Console.SessionID)
	}
	if !cfg.Console.Background {
		t.Fatal("expected background=true")
	}
}

func TestLoadEdge_ConsoleTimeoutOverride(t *testing.T) {
	dir := t.TempDir()
	f := filepath.Join(dir, "edge.yaml")
	yaml := "server:\n  listen: \"0.0.0.0:9090\"\nconsole:\n  timeout_sec: 45\n"
	if err := os.WriteFile(f, []byte(yaml), 0o600); err != nil {
		t.Fatalf("write yaml: %v", err)
	}

	cfg, err := config.LoadEdge(f)
	if err != nil {
		t.Fatalf("load: %v", err)
	}
	if cfg.Console.TimeoutSec != 45 {
		t.Fatalf("expected timeout_sec=45, got %d", cfg.Console.TimeoutSec)
	}
}

func TestLoadEdge_ConsoleTargetOverride(t *testing.T) {
	dir := t.TempDir()
	f := filepath.Join(dir, "edge.yaml")
	yaml := "server:\n  listen: \"0.0.0.0:9090\"\nconsole:\n  target: \"codex\"\n"
	if err := os.WriteFile(f, []byte(yaml), 0o600); err != nil {
		t.Fatalf("write yaml: %v", err)
	}

	cfg, err := config.LoadEdge(f)
	if err != nil {
		t.Fatalf("load: %v", err)
	}
	if cfg.Console.ResolveTarget() != "codex" {
		t.Fatalf("expected console.target to resolve to %q, got %q", "codex", cfg.Console.ResolveTarget())
	}
}

func TestLoadEdge_ConsoleTargetFallbackFromLegacyAgent(t *testing.T) {
	dir := t.TempDir()
	f := filepath.Join(dir, "edge.yaml")
	yaml := "server:\n  listen: \"0.0.0.0:9090\"\nconsole:\n  agent: \"codex\"\n"
	if err := os.WriteFile(f, []byte(yaml), 0o600); err != nil {
		t.Fatalf("write yaml: %v", err)
	}

	cfg, err := config.LoadEdge(f)
	if err != nil {
		t.Fatalf("load: %v", err)
	}
	if cfg.Console.ResolveTarget() != "codex" {
		t.Fatalf("expected legacy console.agent fallback to resolve to %q, got %q", "codex", cfg.Console.ResolveTarget())
	}
}

func TestLoadEdge_ConsoleTargetFallbackFromLegacyModel(t *testing.T) {
	dir := t.TempDir()
	f := filepath.Join(dir, "edge.yaml")
	yaml := "server:\n  listen: \"0.0.0.0:9090\"\nconsole:\n  model: \"codex\"\n"
	if err := os.WriteFile(f, []byte(yaml), 0o600); err != nil {
		t.Fatalf("write yaml: %v", err)
	}

	cfg, err := config.LoadEdge(f)
	if err != nil {
		t.Fatalf("load: %v", err)
	}
	if cfg.Console.ResolveTarget() != "codex" {
		t.Fatalf("expected legacy console.model fallback to resolve to %q, got %q", "codex", cfg.Console.ResolveTarget())
	}
}

func TestLoadEdge_CodexProfile(t *testing.T) {
	dir := t.TempDir()
	f := filepath.Join(dir, "edge.yaml")
	yaml := `
server:
  listen: "0.0.0.0:9090"
nodes:
  - alias: "local"
    adapters:
      cli:
        enabled: true
        profiles:
          codex:
            command: "codex"
            output_format: "codex-json"
`
	if err := os.WriteFile(f, []byte(yaml), 0o600); err != nil {
		t.Fatalf("write yaml: %v", err)
	}

	cfg, err := config.LoadEdge(f)
	if err != nil {
		t.Fatalf("load: %v", err)
	}

	if len(cfg.Nodes) == 0 {
		t.Fatal("expected 1 node")
	}
	codex, ok := cfg.Nodes[0].Adapters.CLI.Profiles["codex"]
	if !ok {
		t.Fatal("expected codex profile")
	}
	if codex.Command != "codex" || codex.OutputFormat != "codex-json" {
		t.Errorf("unexpected codex profile: %+v", codex)
	}
}

func TestLoadEdge_AntigravityProfile(t *testing.T) {
	dir := t.TempDir()
	f := filepath.Join(dir, "edge.yaml")
	yaml := `
server:
  listen: "0.0.0.0:9090"
nodes:
  - alias: "local"
    adapters:
      cli:
        enabled: true
        profiles:
          antigravity:
            command: "agy"
            args:
              - "--dangerously-skip-permissions"
              - "--print-timeout"
              - "10m"
              - "--print"
            resume_args:
              - "--dangerously-skip-permissions"
              - "--print-timeout"
              - "10m"
              - "--conversation"
            mode: "antigravity-print"
`
	if err := os.WriteFile(f, []byte(yaml), 0o600); err != nil {
		t.Fatalf("write yaml: %v", err)
	}

	cfg, err := config.LoadEdge(f)
	if err != nil {
		t.Fatalf("load: %v", err)
	}

	if len(cfg.Nodes) == 0 {
		t.Fatal("expected 1 node")
	}
	agy, ok := cfg.Nodes[0].Adapters.CLI.Profiles["antigravity"]
	if !ok {
		t.Fatal("expected antigravity profile")
	}
	if agy.Command != "agy" {
		t.Errorf("expected command agy, got %q", agy.Command)
	}
	expectedArgs := []string{"--dangerously-skip-permissions", "--print-timeout", "10m", "--print"}
	if len(agy.Args) != len(expectedArgs) {
		t.Fatalf("expected %d args, got %d: %v", len(expectedArgs), len(agy.Args), agy.Args)
	}
	for i, v := range expectedArgs {
		if agy.Args[i] != v {
			t.Errorf("args[%d]: expected %q, got %q", i, v, agy.Args[i])
		}
	}
	if agy.OutputFormat != "" {
		t.Errorf("expected empty output format, got %q", agy.OutputFormat)
	}
	if agy.Mode != "antigravity-print" {
		t.Errorf("expected mode antigravity-print, got %q", agy.Mode)
	}
	expectedResume := []string{"--dangerously-skip-permissions", "--print-timeout", "10m", "--conversation"}
	if len(agy.ResumeArgs) != len(expectedResume) {
		t.Fatalf("expected %d resume_args, got %d: %v", len(expectedResume), len(agy.ResumeArgs), agy.ResumeArgs)
	}
	for i, v := range expectedResume {
		if agy.ResumeArgs[i] != v {
			t.Errorf("resume_args[%d]: expected %q, got %q", i, v, agy.ResumeArgs[i])
		}
	}
}

func TestCLIProfileConf_CompletionMarkerUnmarshal(t *testing.T) {
	dir := t.TempDir()
	f := filepath.Join(dir, "edge.yaml")
	yaml := `
server:
  listen: "0.0.0.0:9090"
nodes:
  - alias: "local"
    adapters:
      cli:
        enabled: true
        profiles:
          marker-test:
            command: "mycli"
            completion_marker:
              line: "<<END_OF_RESPONSE>>"
              regex: "^DONE \\d+$"
`
	if err := os.WriteFile(f, []byte(yaml), 0o600); err != nil {
		t.Fatalf("write yaml: %v", err)
	}

	cfg, err := config.LoadEdge(f)
	if err != nil {
		t.Fatalf("load: %v", err)
	}

	if len(cfg.Nodes) == 0 {
		t.Fatal("expected 1 node")
	}
	profile, ok := cfg.Nodes[0].Adapters.CLI.Profiles["marker-test"]
	if !ok {
		t.Fatal("expected marker-test profile")
	}
	if profile.CompletionMarker.Line != "<<END_OF_RESPONSE>>" {
		t.Errorf("expected Line=%q, got %q", "<<END_OF_RESPONSE>>", profile.CompletionMarker.Line)
	}
	if profile.CompletionMarker.Regex != "^DONE \\d+$" {
		t.Errorf("expected Regex=%q, got %q", "^DONE \\d+$", profile.CompletionMarker.Regex)
	}
}

func TestCompletionMarkerConf_Empty(t *testing.T) {
	var empty config.CompletionMarkerConf
	if !empty.Empty() {
		t.Fatal("expected Empty() == true for zero value")
	}

	lineOnly := config.CompletionMarkerConf{Line: "<<END>>"}
	if lineOnly.Empty() {
		t.Fatal("expected Empty() == false when Line is set")
	}

	regexOnly := config.CompletionMarkerConf{Regex: "^END$"}
	if regexOnly.Empty() {
		t.Fatal("expected Empty() == false when Regex is set")
	}

	bothSet := config.CompletionMarkerConf{Line: "<<END>>", Regex: "^END$"}
	if bothSet.Empty() {
		t.Fatal("expected Empty() == false when both are set")
	}
}

func TestCompletionMarkerConf_LineOnlyUnmarshal(t *testing.T) {
	dir := t.TempDir()
	f := filepath.Join(dir, "edge.yaml")
	yaml := `
server:
  listen: "0.0.0.0:9090"
nodes:
  - alias: "local"
    adapters:
      cli:
        enabled: true
        profiles:
          line-only:
            command: "mycli"
            completion_marker:
              line: "<<END>>"
`
	if err := os.WriteFile(f, []byte(yaml), 0o600); err != nil {
		t.Fatalf("write yaml: %v", err)
	}

	cfg, err := config.LoadEdge(f)
	if err != nil {
		t.Fatalf("load: %v", err)
	}

	profile, ok := cfg.Nodes[0].Adapters.CLI.Profiles["line-only"]
	if !ok {
		t.Fatal("expected line-only profile")
	}
	if profile.CompletionMarker.Line != "<<END>>" {
		t.Errorf("expected Line=%q, got %q", "<<END>>", profile.CompletionMarker.Line)
	}
	if profile.CompletionMarker.Regex != "" {
		t.Errorf("expected empty Regex, got %q", profile.CompletionMarker.Regex)
	}
	if profile.CompletionMarker.Empty() {
		t.Fatal("expected Empty() == false when only Line is set")
	}
}

func TestCompletionMarkerConf_RegexOnlyUnmarshal(t *testing.T) {
	dir := t.TempDir()
	f := filepath.Join(dir, "edge.yaml")
	yaml := `
server:
  listen: "0.0.0.0:9090"
nodes:
  - alias: "local"
    adapters:
      cli:
        enabled: true
        profiles:
          regex-only:
            command: "mycli"
            completion_marker:
              regex: "^DONE \\d+$"
`
	if err := os.WriteFile(f, []byte(yaml), 0o600); err != nil {
		t.Fatalf("write yaml: %v", err)
	}

	cfg, err := config.LoadEdge(f)
	if err != nil {
		t.Fatalf("load: %v", err)
	}

	profile, ok := cfg.Nodes[0].Adapters.CLI.Profiles["regex-only"]
	if !ok {
		t.Fatal("expected regex-only profile")
	}
	if profile.CompletionMarker.Regex != "^DONE \\d+$" {
		t.Errorf("expected Regex=%q, got %q", "^DONE \\d+$", profile.CompletionMarker.Regex)
	}
	if profile.CompletionMarker.Line != "" {
		t.Errorf("expected empty Line, got %q", profile.CompletionMarker.Line)
	}
	if profile.CompletionMarker.Empty() {
		t.Fatal("expected Empty() == false when only Regex is set")
	}
}

func TestLoadEdge_CLIProfileMode(t *testing.T) {
	dir := t.TempDir()
	f := filepath.Join(dir, "edge.yaml")
	yaml := `
server:
  listen: "0.0.0.0:9090"
nodes:
  - alias: "local"
    adapters:
      cli:
        enabled: true
        profiles:
          codex:
            command: "codex"
            args:
              - "exec"
              - "--json"
            resume_args:
              - "exec"
              - "resume"
              - "--json"
            mode: "codex-exec"
`
	if err := os.WriteFile(f, []byte(yaml), 0o600); err != nil {
		t.Fatalf("write yaml: %v", err)
	}

	cfg, err := config.LoadEdge(f)
	if err != nil {
		t.Fatalf("load: %v", err)
	}

	if len(cfg.Nodes) == 0 {
		t.Fatal("expected 1 node")
	}
	profile, ok := cfg.Nodes[0].Adapters.CLI.Profiles["codex"]
	if !ok {
		t.Fatal("expected codex profile")
	}
	if profile.Mode != "codex-exec" {
		t.Errorf("expected mode=%q, got %q", "codex-exec", profile.Mode)
	}
	expectedResume := []string{"exec", "resume", "--json"}
	if len(profile.ResumeArgs) != len(expectedResume) {
		t.Fatalf("expected %d resume_args, got %d: %v", len(expectedResume), len(profile.ResumeArgs), profile.ResumeArgs)
	}
	for i, v := range expectedResume {
		if profile.ResumeArgs[i] != v {
			t.Errorf("resume_args[%d]: expected %q, got %q", i, v, profile.ResumeArgs[i])
		}
	}
}

func TestLoadEdge_OpencodeSSEProfile(t *testing.T) {
	dir := t.TempDir()
	f := filepath.Join(dir, "edge.yaml")
	yaml := `
server:
  listen: "0.0.0.0:9090"
nodes:
  - alias: "local"
    adapters:
      cli:
        enabled: true
        profiles:
          opencode:
            command: "/usr/local/bin/opencode"
            args:
              - "--title"
              - "untitle"
              - "--model"
              - "ollama-dgx/qwen3.6:35b-a3b-bf16"
              - "--dangerously-skip-permissions"
            mode: "opencode-sse"
`
	if err := os.WriteFile(f, []byte(yaml), 0o600); err != nil {
		t.Fatalf("write yaml: %v", err)
	}
	cfg, err := config.LoadEdge(f)
	if err != nil {
		t.Fatalf("load: %v", err)
	}
	if len(cfg.Nodes) == 0 {
		t.Fatal("expected 1 node")
	}
	prof, ok := cfg.Nodes[0].Adapters.CLI.Profiles["opencode"]
	if !ok {
		t.Fatal("expected opencode profile")
	}
	if prof.Mode != "opencode-sse" {
		t.Errorf("mode: got %q", prof.Mode)
	}
	expectedArgs := []string{"--title", "untitle", "--model", "ollama-dgx/qwen3.6:35b-a3b-bf16", "--dangerously-skip-permissions"}
	if len(prof.Args) != len(expectedArgs) {
		t.Fatalf("args len: got %d, want %d", len(prof.Args), len(expectedArgs))
	}
	for i, want := range expectedArgs {
		if prof.Args[i] != want {
			t.Errorf("args[%d]: got %q, want %q", i, prof.Args[i], want)
		}
	}
}

func TestCLIProfileConf_CompletionMarkerEmpty(t *testing.T) {
	dir := t.TempDir()
	f := filepath.Join(dir, "edge.yaml")
	yaml := `
server:
  listen: "0.0.0.0:9090"
nodes:
  - alias: "local"
    adapters:
      cli:
        enabled: true
        profiles:
          no-marker:
            command: "mycli"
`
	if err := os.WriteFile(f, []byte(yaml), 0o600); err != nil {
		t.Fatalf("write yaml: %v", err)
	}

	cfg, err := config.LoadEdge(f)
	if err != nil {
		t.Fatalf("load: %v", err)
	}

	profile, ok := cfg.Nodes[0].Adapters.CLI.Profiles["no-marker"]
	if !ok {
		t.Fatal("expected no-marker profile")
	}
	if !profile.CompletionMarker.Empty() {
		t.Fatal("expected Empty() == true when completion_marker is not specified")
	}
}

func TestLoadEdge_AdvertiseHostAndArtifactDefaultsEmpty(t *testing.T) {
	dir := t.TempDir()
	f := filepath.Join(dir, "edge.yaml")
	if err := os.WriteFile(f, []byte("server:\n  listen: \"0.0.0.0:9090\"\n"), 0o600); err != nil {
		t.Fatalf("write yaml: %v", err)
	}
	cfg, err := config.LoadEdge(f)
	if err != nil {
		t.Fatalf("load: %v", err)
	}
	if cfg.Server.AdvertiseHost != "" {
		t.Errorf("expected empty server.advertise_host by default, got %q", cfg.Server.AdvertiseHost)
	}
	if cfg.Bootstrap.ArtifactBaseURL != "" {
		t.Errorf("expected empty bootstrap.artifact_base_url by default, got %q", cfg.Bootstrap.ArtifactBaseURL)
	}
	if cfg.Logging.Path != "" {
		t.Errorf("expected empty logging.path by default, got %q", cfg.Logging.Path)
	}
}

func TestLoadEdge_AdvertiseHostAndArtifactExplicit(t *testing.T) {
	dir := t.TempDir()
	f := filepath.Join(dir, "edge.yaml")
	yaml := `server:
  listen: "0.0.0.0:9090"
  advertise_host: "edge.example.test"
bootstrap:
  artifact_base_url: "http://edge.example.test:18080"
logging:
  path: "/var/log/iop/edge.log"
`
	if err := os.WriteFile(f, []byte(yaml), 0o600); err != nil {
		t.Fatalf("write yaml: %v", err)
	}
	cfg, err := config.LoadEdge(f)
	if err != nil {
		t.Fatalf("load: %v", err)
	}
	if cfg.Server.AdvertiseHost != "edge.example.test" {
		t.Errorf("server.advertise_host=%q", cfg.Server.AdvertiseHost)
	}
	if cfg.Bootstrap.ArtifactBaseURL != "http://edge.example.test:18080" {
		t.Errorf("bootstrap.artifact_base_url=%q", cfg.Bootstrap.ArtifactBaseURL)
	}
	if cfg.Logging.Path != "/var/log/iop/edge.log" {
		t.Errorf("logging.path=%q", cfg.Logging.Path)
	}
}

func TestLoadEdge_A2ADefaults(t *testing.T) {
	dir := t.TempDir()
	f := filepath.Join(dir, "edge.yaml")
	if err := os.WriteFile(f, []byte("server:\n  listen: \"0.0.0.0:9090\"\n"), 0o600); err != nil {
		t.Fatalf("write yaml: %v", err)
	}
	cfg, err := config.LoadEdge(f)
	if err != nil {
		t.Fatalf("load: %v", err)
	}
	if cfg.A2A.Enabled {
		t.Fatal("expected a2a.enabled=false by default")
	}
	if cfg.A2A.Listen != "0.0.0.0:8081" {
		t.Fatalf("expected a2a.listen default, got %q", cfg.A2A.Listen)
	}
	if cfg.A2A.Path != "/a2a" {
		t.Fatalf("expected a2a.path=%q, got %q", "/a2a", cfg.A2A.Path)
	}
	if cfg.A2A.Adapter != "cli" {
		t.Fatalf("expected a2a.adapter=%q, got %q", "cli", cfg.A2A.Adapter)
	}
	if cfg.A2A.SessionID != "a2a" {
		t.Fatalf("expected a2a.session_id=%q, got %q", "a2a", cfg.A2A.SessionID)
	}
	if cfg.A2A.TimeoutSec != 120 {
		t.Fatalf("expected a2a.timeout_sec=120, got %d", cfg.A2A.TimeoutSec)
	}
	if cfg.A2A.BearerToken != "" {
		t.Fatalf("expected a2a.bearer_token empty by default, got %q", cfg.A2A.BearerToken)
	}
}

func TestCompletionMarkerConf_RegexAndLineUsage(t *testing.T) {
	lineOnly := config.CompletionMarkerConf{Line: "<<END>>"}
	if !strings.Contains(lineOnly.Line, "<<END>>") {
		t.Errorf("expected Line to contain <<END>>, got %q", lineOnly.Line)
	}

	regexOnly := config.CompletionMarkerConf{Regex: "^DONE \\d+$"}
	if !strings.Contains(regexOnly.Regex, "DONE") {
		t.Errorf("expected Regex to contain DONE, got %q", regexOnly.Regex)
	}

	both := config.CompletionMarkerConf{Line: "<<END>>", Regex: "^DONE \\d+$"}
	if both.Line != "<<END>>" || both.Regex != "^DONE \\d+$" {
		t.Errorf("expected both fields set, got %+v", both)
	}
	if both.Empty() {
		t.Fatal("expected Empty() == false when both are set")
	}
}

func TestLoadEdge_A2AOverride(t *testing.T) {
	dir := t.TempDir()
	f := filepath.Join(dir, "edge.yaml")
	yaml := `
server:
  listen: "0.0.0.0:9090"
a2a:
  enabled: true
  listen: "127.0.0.1:8082"
  path: "/agent"
  node: "node0"
  adapter: "cli"
  target: "claude"
  session_id: "nomad"
  timeout_sec: 60
  bearer_token: "secret-token"
`
	if err := os.WriteFile(f, []byte(yaml), 0o600); err != nil {
		t.Fatalf("write yaml: %v", err)
	}
	cfg, err := config.LoadEdge(f)
	if err != nil {
		t.Fatalf("load: %v", err)
	}
	if !cfg.A2A.Enabled {
		t.Fatal("expected a2a.enabled=true")
	}
	if cfg.A2A.Listen != "127.0.0.1:8082" {
		t.Fatalf("expected a2a.listen=%q, got %q", "127.0.0.1:8082", cfg.A2A.Listen)
	}
	if cfg.A2A.Path != "/agent" {
		t.Fatalf("expected a2a.path=%q, got %q", "/agent", cfg.A2A.Path)
	}
	if cfg.A2A.NodeRef != "node0" {
		t.Fatalf("expected a2a.node=%q, got %q", "node0", cfg.A2A.NodeRef)
	}
	if cfg.A2A.Target != "claude" {
		t.Fatalf("expected a2a.target=%q, got %q", "claude", cfg.A2A.Target)
	}
	if cfg.A2A.SessionID != "nomad" {
		t.Fatalf("expected a2a.session_id=%q, got %q", "nomad", cfg.A2A.SessionID)
	}
	if cfg.A2A.TimeoutSec != 60 {
		t.Fatalf("expected a2a.timeout_sec=60, got %d", cfg.A2A.TimeoutSec)
	}
	if cfg.A2A.BearerToken != "secret-token" {
		t.Fatalf("expected a2a.bearer_token=%q, got %q", "secret-token", cfg.A2A.BearerToken)
	}
}

func TestLoadEdge_NodeAgentKindGeneric(t *testing.T) {
	dir := t.TempDir()
	f := filepath.Join(dir, "edge.yaml")
	yaml := `server:
  listen: "0.0.0.0:9090"
nodes:
  - alias: "node-local"
    token: "token-node"
    agent_kind: "generic-node"
`
	if err := os.WriteFile(f, []byte(yaml), 0o600); err != nil {
		t.Fatalf("write yaml: %v", err)
	}
	cfg, err := config.LoadEdge(f)
	if err != nil {
		t.Fatalf("load: %v", err)
	}
	if len(cfg.Nodes) == 0 {
		t.Fatal("expected 1 node")
	}
	if cfg.Nodes[0].AgentKind != config.AgentKindGenericNode {
		t.Fatalf("expected agent_kind=%q, got %q", config.AgentKindGenericNode, cfg.Nodes[0].AgentKind)
	}
}

func TestLoadEdge_NodeAgentKindDefault(t *testing.T) {
	dir := t.TempDir()
	f := filepath.Join(dir, "edge.yaml")
	yaml := `server:
  listen: "0.0.0.0:9090"
nodes:
  - alias: "node-local"
    token: "token-node"
`
	if err := os.WriteFile(f, []byte(yaml), 0o600); err != nil {
		t.Fatalf("write yaml: %v", err)
	}
	cfg, err := config.LoadEdge(f)
	if err != nil {
		t.Fatalf("load: %v", err)
	}
	if len(cfg.Nodes) == 0 {
		t.Fatal("expected 1 node")
	}
	if cfg.Nodes[0].AgentKind != config.AgentKindGenericNode {
		t.Fatalf("expected default agent_kind=%q, got %q", config.AgentKindGenericNode, cfg.Nodes[0].AgentKind)
	}
}

func TestLoadEdge_NodeAgentKindRejectsInvalid(t *testing.T) {
	dir := t.TempDir()
	f := filepath.Join(dir, "edge.yaml")
	yaml := `
server:
  listen: "0.0.0.0:9090"
nodes:
  - alias: "bad-local"
    token: "token-bad"
    agent_kind: "not-a-kind"
`
	if err := os.WriteFile(f, []byte(yaml), 0o600); err != nil {
		t.Fatalf("write yaml: %v", err)
	}
	_, err := config.LoadEdge(f)
	if err == nil {
		t.Fatal("expected invalid agent_kind error")
	}
	if !strings.Contains(err.Error(), "agent_kind") {
		t.Fatalf("expected error to mention agent_kind, got %v", err)
	}
}

func TestLoadEdge_NodeProviderGlobalUniqueness(t *testing.T) {
	dir := t.TempDir()
	f := filepath.Join(dir, "edge.yaml")
	yaml := `
server:
  listen: "0.0.0.0:9090"
nodes:
  - alias: "node-a"
    providers:
      - id: "shared-provider"
        type: "ollama"
        category: "cli"
        models:
          - "model-a"
  - alias: "node-b"
    providers:
      - id: "shared-provider"
        type: "vllm"
        category: "api"
        models:
          - "model-b"
`
	if err := os.WriteFile(f, []byte(yaml), 0o600); err != nil {
		t.Fatalf("write yaml: %v", err)
	}
	_, err := config.LoadEdge(f)
	if err == nil {
		t.Fatal("expected duplicate provider id error across nodes")
	}
	if !strings.Contains(err.Error(), "shared-provider") {
		t.Fatalf("expected error to mention 'shared-provider', got %v", err)
	}
}

func TestLoadEdge_NodeProviderEnabledDefaultsTrue(t *testing.T) {
	dir := t.TempDir()
	f := filepath.Join(dir, "edge.yaml")
	yaml := `
server:
  listen: "0.0.0.0:9090"
nodes:
  - alias: "node-a"
    token: "tok-a"
    adapters:
      vllm:
        enabled: true
        endpoint: "http://127.0.0.1:8000/v1"
    providers:
      - id: "prov-default"
        type: "vllm"
        category: "api"
        adapter: "vllm"
        models: ["model-x"]
        capacity: 2
      - id: "prov-explicit-true"
        type: "vllm"
        category: "api"
        adapter: "vllm"
        models: ["model-y"]
        capacity: 2
        enabled: true
      - id: "prov-explicit-false"
        type: "vllm"
        category: "api"
        adapter: "vllm"
        models: ["model-z"]
        capacity: 2
        enabled: false
`
	if err := os.WriteFile(f, []byte(yaml), 0o600); err != nil {
		t.Fatalf("write yaml: %v", err)
	}
	cfg, err := config.LoadEdge(f)
	if err != nil {
		t.Fatalf("load: %v", err)
	}
	if len(cfg.Nodes) != 1 {
		t.Fatalf("expected 1 node, got %d", len(cfg.Nodes))
	}
	provs := cfg.Nodes[0].Providers
	if len(provs) != 3 {
		t.Fatalf("expected 3 providers, got %d", len(provs))
	}
	byID := map[string]config.NodeProviderConf{}
	for _, p := range provs {
		byID[p.ID] = p
	}

	// prov-default: Enabled is nil → ProviderEnabled returns true.
	def := byID["prov-default"]
	if def.Enabled != nil {
		t.Errorf("prov-default: expected Enabled=nil (omitted), got %v", def.Enabled)
	}
	if !config.ProviderEnabled(def) {
		t.Error("prov-default: ProviderEnabled must be true when Enabled is nil")
	}

	// prov-explicit-true: Enabled is *true → ProviderEnabled returns true.
	exTrue := byID["prov-explicit-true"]
	if exTrue.Enabled == nil || !*exTrue.Enabled {
		t.Errorf("prov-explicit-true: expected Enabled=*true, got %v", exTrue.Enabled)
	}
	if !config.ProviderEnabled(exTrue) {
		t.Error("prov-explicit-true: ProviderEnabled must be true when Enabled=true")
	}

	// prov-explicit-false: Enabled is *false → ProviderEnabled returns false.
	exFalse := byID["prov-explicit-false"]
	if exFalse.Enabled == nil || *exFalse.Enabled {
		t.Errorf("prov-explicit-false: expected Enabled=*false, got %v", exFalse.Enabled)
	}
	if config.ProviderEnabled(exFalse) {
		t.Error("prov-explicit-false: ProviderEnabled must be false when Enabled=false")
	}
}

func TestLoadEdge_ControlPlaneDefaults(t *testing.T) {
	dir := t.TempDir()
	f := filepath.Join(dir, "edge.yaml")
	if err := os.WriteFile(f, []byte("server:\n  listen: \"0.0.0.0:9090\"\n"), 0o600); err != nil {
		t.Fatalf("write yaml: %v", err)
	}
	cfg, err := config.LoadEdge(f)
	if err != nil {
		t.Fatalf("load: %v", err)
	}
	if cfg.ControlPlane.Enabled {
		t.Fatal("expected control_plane.enabled=false by default")
	}
	if cfg.ControlPlane.WireAddr != "" {
		t.Fatalf("expected control_plane.wire_addr empty by default, got %q", cfg.ControlPlane.WireAddr)
	}
	if cfg.ControlPlane.ReconnectIntervalSec != 5 {
		t.Fatalf("expected control_plane.reconnect_interval_sec=5, got %d", cfg.ControlPlane.ReconnectIntervalSec)
	}
}

func TestLoadEdge_MultiOllamaInstances(t *testing.T) {
	dir := t.TempDir()
	f := filepath.Join(dir, "edge.yaml")
	yaml := `
server:
  listen: "0.0.0.0:9090"
nodes:
  - alias: "multi"
    adapters:
      ollama_instances:
        - name: "local"
          enabled: true
          base_url: "http://127.0.0.1:11434"
          context_size: 131072
          capacity: 2
          max_queue: 4
          queue_timeout_ms: 1000
          request_timeout_ms: 20000
        - name: "dgx"
          enabled: true
          base_url: "http://192.168.0.91:11434"
          context_size: 262144
          capacity: 6
          max_queue: 12
          queue_timeout_ms: 2000
          request_timeout_ms: 60000
`
	if err := os.WriteFile(f, []byte(yaml), 0o600); err != nil {
		t.Fatalf("write yaml: %v", err)
	}
	cfg, err := config.LoadEdge(f)
	if err != nil {
		t.Fatalf("load: %v", err)
	}
	if len(cfg.Nodes) == 0 {
		t.Fatal("expected 1 node")
	}
	insts := cfg.Nodes[0].Adapters.OllamaInstances
	if len(insts) != 2 {
		t.Fatalf("expected 2 ollama instances, got %d", len(insts))
	}
	if insts[0].Name != "local" || insts[0].BaseURL != "http://127.0.0.1:11434" || insts[0].ContextSize != 131072 {
		t.Errorf("unexpected instance[0]: %+v", insts[0])
	}
	if insts[0].Capacity != 2 || insts[0].MaxQueue != 4 || insts[0].QueueTimeoutMS != 1000 || insts[0].RequestTimeoutMS != 20000 {
		t.Errorf("unexpected instance[0] queue config: %+v", insts[0])
	}
	if insts[1].Name != "dgx" || insts[1].BaseURL != "http://192.168.0.91:11434" || insts[1].ContextSize != 262144 {
		t.Errorf("unexpected instance[1]: %+v", insts[1])
	}
	if insts[1].Capacity != 6 || insts[1].MaxQueue != 12 || insts[1].QueueTimeoutMS != 2000 || insts[1].RequestTimeoutMS != 60000 {
		t.Errorf("unexpected instance[1] queue config: %+v", insts[1])
	}
}

func TestLoadEdge_MultiVllmInstances(t *testing.T) {
	dir := t.TempDir()
	f := filepath.Join(dir, "edge.yaml")
	yaml := `
server:
  listen: "0.0.0.0:9090"
nodes:
  - alias: "multi-vllm"
    adapters:
      vllm_instances:
        - name: "a100"
          enabled: true
          endpoint: "http://10.0.0.5:8000"
          capacity: 4
          max_queue: 10
          queue_timeout_ms: 1500
          request_timeout_ms: 45000
        - name: "h100"
          enabled: true
          endpoint: "http://10.0.0.6:8000"
          capacity: 8
          max_queue: 16
          queue_timeout_ms: 2500
          request_timeout_ms: 90000
`
	if err := os.WriteFile(f, []byte(yaml), 0o600); err != nil {
		t.Fatalf("write yaml: %v", err)
	}
	cfg, err := config.LoadEdge(f)
	if err != nil {
		t.Fatalf("load: %v", err)
	}
	if len(cfg.Nodes) == 0 {
		t.Fatal("expected 1 node")
	}
	insts := cfg.Nodes[0].Adapters.VllmInstances
	if len(insts) != 2 {
		t.Fatalf("expected 2 vllm instances, got %d", len(insts))
	}
	if insts[0].Name != "a100" || insts[0].Endpoint != "http://10.0.0.5:8000" {
		t.Errorf("unexpected instance[0]: %+v", insts[0])
	}
	if insts[0].Capacity != 4 || insts[0].MaxQueue != 10 || insts[0].QueueTimeoutMS != 1500 || insts[0].RequestTimeoutMS != 45000 {
		t.Errorf("unexpected instance[0] queue config: %+v", insts[0])
	}
	if insts[1].Name != "h100" || insts[1].Endpoint != "http://10.0.0.6:8000" {
		t.Errorf("unexpected instance[1]: %+v", insts[1])
	}
	if insts[1].Capacity != 8 || insts[1].MaxQueue != 16 || insts[1].QueueTimeoutMS != 2500 || insts[1].RequestTimeoutMS != 90000 {
		t.Errorf("unexpected instance[1] queue config: %+v", insts[1])
	}
}

func TestLoadEdge_LegacyOllamaPromotedToInstances(t *testing.T) {
	dir := t.TempDir()
	f := filepath.Join(dir, "edge.yaml")
	yaml := `
server:
  listen: "0.0.0.0:9090"
nodes:
  - alias: "local"
    adapters:
      ollama:
        enabled: true
        base_url: "http://192.168.0.91:11434"
        context_size: 262144
        capacity: 5
        max_queue: 9
        queue_timeout_ms: 1700
        request_timeout_ms: 55000
`
	if err := os.WriteFile(f, []byte(yaml), 0o600); err != nil {
		t.Fatalf("write yaml: %v", err)
	}
	cfg, err := config.LoadEdge(f)
	if err != nil {
		t.Fatalf("load: %v", err)
	}
	insts := cfg.Nodes[0].Adapters.OllamaInstances
	if len(insts) != 1 {
		t.Fatalf("expected 1 ollama instance from legacy field, got %d", len(insts))
	}
	if insts[0].Name != "ollama" {
		t.Errorf("expected instance name %q, got %q", "ollama", insts[0].Name)
	}
	if insts[0].BaseURL != "http://192.168.0.91:11434" {
		t.Errorf("expected base_url %q, got %q", "http://192.168.0.91:11434", insts[0].BaseURL)
	}
	if insts[0].Capacity != 5 || insts[0].MaxQueue != 9 || insts[0].QueueTimeoutMS != 1700 || insts[0].RequestTimeoutMS != 55000 {
		t.Errorf("unexpected promoted queue config: %+v", insts[0])
	}
}

func TestLoadEdge_DuplicateOllamaInstanceNameRejected(t *testing.T) {
	dir := t.TempDir()
	f := filepath.Join(dir, "edge.yaml")
	yaml := `
server:
  listen: "0.0.0.0:9090"
nodes:
  - alias: "dup"
    adapters:
      ollama_instances:
        - name: "same"
          enabled: true
          base_url: "http://127.0.0.1:11434"
        - name: "same"
          enabled: true
          base_url: "http://127.0.0.2:11434"
`
	if err := os.WriteFile(f, []byte(yaml), 0o600); err != nil {
		t.Fatalf("write yaml: %v", err)
	}
	_, err := config.LoadEdge(f)
	if err == nil {
		t.Fatal("expected error for duplicate ollama instance name")
	}
}

func TestLoadEdge_ProviderQueueConfigRejectsNegative(t *testing.T) {
	dir := t.TempDir()
	f := filepath.Join(dir, "edge.yaml")
	yaml := `
server:
  listen: "0.0.0.0:9090"
nodes:
  - alias: "bad-queue"
    adapters:
      ollama_instances:
        - name: "local"
          enabled: true
          base_url: "http://127.0.0.1:11434"
          capacity: -1
`
	if err := os.WriteFile(f, []byte(yaml), 0o600); err != nil {
		t.Fatalf("write yaml: %v", err)
	}
	_, err := config.LoadEdge(f)
	if err == nil {
		t.Fatal("expected negative provider queue config error")
	}
	if !strings.Contains(err.Error(), "capacity") || !strings.Contains(err.Error(), "non-negative") {
		t.Fatalf("expected error to mention capacity non-negative, got %v", err)
	}
}

func TestLoadEdge_OpenAIRouteCatalog(t *testing.T) {
	dir := t.TempDir()
	f := filepath.Join(dir, "edge.yaml")
	yaml := `
server:
  listen: "0.0.0.0:9090"
openai:
  enabled: true
  listen: "0.0.0.0:18081"
  adapter: "ollama"
  model_routes:
    - model: "model-a"
      adapter: "ollama"
      target: "llama3"
      node: "node-01"
      session_id: "sess-a"
      timeout_sec: 30
      max_queue: 10
      queue_timeout_ms: 5000
    - model: "model-b"
      adapter: "vllm"
      target: "qwen"
`
	if err := os.WriteFile(f, []byte(yaml), 0o600); err != nil {
		t.Fatalf("write yaml: %v", err)
	}
	cfg, err := config.LoadEdge(f)
	if err != nil {
		t.Fatalf("load: %v", err)
	}
	if len(cfg.OpenAI.ModelRoutes) != 2 {
		t.Fatalf("expected 2 model_routes, got %d", len(cfg.OpenAI.ModelRoutes))
	}
	r0 := cfg.OpenAI.ModelRoutes[0]
	if r0.Model != "model-a" || r0.Adapter != "ollama" || r0.Target != "llama3" {
		t.Errorf("route[0] mismatch: %+v", r0)
	}
	if r0.NodeRef != "node-01" || r0.SessionID != "sess-a" || r0.TimeoutSec != 30 {
		t.Errorf("route[0] optional fields mismatch: %+v", r0)
	}
	if r0.MaxQueue != 10 || r0.QueueTimeoutMS != 5000 {
		t.Errorf("route[0] queue policy mismatch: max_queue=%d, queue_timeout_ms=%d", r0.MaxQueue, r0.QueueTimeoutMS)
	}
	if r0.WorkspaceRequired {
		t.Errorf("route[0] workspace_required should default to false: %+v", r0)
	}
	r1 := cfg.OpenAI.ModelRoutes[1]
	if r1.Model != "model-b" || r1.Adapter != "vllm" || r1.Target != "qwen" {
		t.Errorf("route[1] mismatch: %+v", r1)
	}
	if r1.MaxQueue != 0 || r1.QueueTimeoutMS != 0 {
		t.Errorf("route[1] queue policy should default to 0: max_queue=%d, queue_timeout_ms=%d", r1.MaxQueue, r1.QueueTimeoutMS)
	}
	if r1.WorkspaceRequired {
		t.Errorf("route[1] workspace_required should default to false: %+v", r1)
	}
}

func TestLoadEdge_OpenAIRouteCatalogWorkspaceRequired(t *testing.T) {
	dir := t.TempDir()
	f := filepath.Join(dir, "edge.yaml")
	yaml := `
server:
  listen: "0.0.0.0:9090"
openai:
  enabled: true
  model_routes:
    - model: "codex"
      adapter: "cli"
      target: "codex"
      workspace_required: true
    - model: "llama3"
      adapter: "ollama"
      target: "llama3:8b"
`
	if err := os.WriteFile(f, []byte(yaml), 0o600); err != nil {
		t.Fatalf("write yaml: %v", err)
	}
	cfg, err := config.LoadEdge(f)
	if err != nil {
		t.Fatalf("load: %v", err)
	}
	if len(cfg.OpenAI.ModelRoutes) != 2 {
		t.Fatalf("expected 2 model_routes, got %d", len(cfg.OpenAI.ModelRoutes))
	}
	agent := cfg.OpenAI.ModelRoutes[0]
	if agent.Model != "codex" || agent.Adapter != "cli" || agent.Target != "codex" {
		t.Errorf("agent route mismatch: %+v", agent)
	}
	if !agent.WorkspaceRequired {
		t.Errorf("agent route workspace_required should be true: %+v", agent)
	}
	inference := cfg.OpenAI.ModelRoutes[1]
	if inference.Model != "llama3" || inference.Adapter != "ollama" || inference.Target != "llama3:8b" {
		t.Errorf("inference route mismatch: %+v", inference)
	}
	if inference.WorkspaceRequired {
		t.Errorf("inference route workspace_required should be false: %+v", inference)
	}
}

func TestLoadEdge_OpenAIRouteCatalogDuplicateModelRejects(t *testing.T) {
	dir := t.TempDir()
	f := filepath.Join(dir, "edge.yaml")
	yaml := `
server:
  listen: "0.0.0.0:9090"
openai:
  model_routes:
    - model: "model-a"
      adapter: "ollama"
      target: "llama3"
    - model: "model-a"
      adapter: "vllm"
      target: "qwen"
`
	if err := os.WriteFile(f, []byte(yaml), 0o600); err != nil {
		t.Fatalf("write yaml: %v", err)
	}
	_, err := config.LoadEdge(f)
	if err == nil {
		t.Fatal("expected error for duplicate model route")
	}
	if !strings.Contains(err.Error(), "model_routes") || !strings.Contains(err.Error(), "model-a") {
		t.Fatalf("expected error mentioning model_routes and model-a, got %v", err)
	}
}

func TestLoadEdge_OpenAIRouteCatalogEmptyModelRejects(t *testing.T) {
	dir := t.TempDir()
	f := filepath.Join(dir, "edge.yaml")
	yaml := `
server:
  listen: "0.0.0.0:9090"
openai:
  model_routes:
    - model: ""
      target: "llama3"
`
	if err := os.WriteFile(f, []byte(yaml), 0o600); err != nil {
		t.Fatalf("write yaml: %v", err)
	}
	_, err := config.LoadEdge(f)
	if err == nil {
		t.Fatal("expected error for empty model in route catalog")
	}
	if !strings.Contains(err.Error(), "model_routes") {
		t.Fatalf("expected error mentioning model_routes, got %v", err)
	}
}

func TestLoadEdge_OpenAIRouteCatalogQueuePolicyRejectsNegative(t *testing.T) {
	dir := t.TempDir()

	// Test negative max_queue
	f1 := filepath.Join(dir, "edge_neg_max.yaml")
	yaml1 := `
server:
  listen: "0.0.0.0:9090"
openai:
  model_routes:
    - model: "model-a"
      target: "llama3"
      max_queue: -1
`
	if err := os.WriteFile(f1, []byte(yaml1), 0o600); err != nil {
		t.Fatalf("write yaml: %v", err)
	}
	_, err := config.LoadEdge(f1)
	if err == nil {
		t.Fatal("expected error for negative max_queue")
	}
	if !strings.Contains(err.Error(), "max_queue must be non-negative") {
		t.Fatalf("expected error mentioning max_queue must be non-negative, got %v", err)
	}

	// Test negative queue_timeout_ms
	f2 := filepath.Join(dir, "edge_neg_timeout.yaml")
	yaml2 := `
server:
  listen: "0.0.0.0:9090"
openai:
  model_routes:
    - model: "model-a"
      target: "llama3"
      queue_timeout_ms: -500
`
	if err := os.WriteFile(f2, []byte(yaml2), 0o600); err != nil {
		t.Fatalf("write yaml: %v", err)
	}
	_, err = config.LoadEdge(f2)
	if err == nil {
		t.Fatal("expected error for negative queue_timeout_ms")
	}
	if !strings.Contains(err.Error(), "queue_timeout_ms must be non-negative") {
		t.Fatalf("expected error mentioning queue_timeout_ms must be non-negative, got %v", err)
	}
}

// NormalizeAdapters regression tests

func TestNormalizeAdapters_OllamaIdempotent(t *testing.T) {
	a := config.AdaptersConf{
		Ollama: config.OllamaConf{Enabled: true, BaseURL: "http://127.0.0.1:11434", ContextSize: 4096},
	}
	if err := config.NormalizeAdapters(&a); err != nil {
		t.Fatalf("first normalize: %v", err)
	}
	if len(a.OllamaInstances) != 1 {
		t.Fatalf("expected 1 instance after first normalize, got %d", len(a.OllamaInstances))
	}
	if err := config.NormalizeAdapters(&a); err != nil {
		t.Fatalf("second normalize (idempotent): %v", err)
	}
	if len(a.OllamaInstances) != 1 {
		t.Fatalf("expected still 1 instance after second normalize, got %d", len(a.OllamaInstances))
	}
}

func TestNormalizeAdapters_VllmIdempotent(t *testing.T) {
	a := config.AdaptersConf{
		Vllm: config.VllmConf{Enabled: true, Endpoint: "http://127.0.0.1:8000"},
	}
	if err := config.NormalizeAdapters(&a); err != nil {
		t.Fatalf("first normalize: %v", err)
	}
	if len(a.VllmInstances) != 1 {
		t.Fatalf("expected 1 instance after first normalize, got %d", len(a.VllmInstances))
	}
	if err := config.NormalizeAdapters(&a); err != nil {
		t.Fatalf("second normalize (idempotent): %v", err)
	}
	if len(a.VllmInstances) != 1 {
		t.Fatalf("expected still 1 instance after second normalize, got %d", len(a.VllmInstances))
	}
}

func TestNormalizeAdapters_OllamaConflictErrors(t *testing.T) {
	a := config.AdaptersConf{
		Ollama: config.OllamaConf{Enabled: true, BaseURL: "http://127.0.0.1:11434"},
		OllamaInstances: []config.OllamaInstanceConf{
			{Name: "ollama", Enabled: true, BaseURL: "http://other-host:11434"},
		},
	}
	if err := config.NormalizeAdapters(&a); err == nil {
		t.Fatal("expected error for conflicting legacy ollama and explicit instance with same name")
	}
}

func TestNormalizeAdapters_VllmConflictErrors(t *testing.T) {
	a := config.AdaptersConf{
		Vllm: config.VllmConf{Enabled: true, Endpoint: "http://127.0.0.1:8000"},
		VllmInstances: []config.VllmInstanceConf{
			{Name: "vllm", Enabled: true, Endpoint: "http://other-host:8000"},
		},
	}
	if err := config.NormalizeAdapters(&a); err == nil {
		t.Fatal("expected error for conflicting legacy vllm and explicit instance with same name")
	}
}

func TestNormalizeAdapters_OllamaDisabledSameNameErrors(t *testing.T) {
	a := config.AdaptersConf{
		Ollama: config.OllamaConf{Enabled: true, BaseURL: "http://127.0.0.1:11434"},
		OllamaInstances: []config.OllamaInstanceConf{
			{Name: "ollama", Enabled: false, BaseURL: "http://127.0.0.1:11434"},
		},
	}
	if err := config.NormalizeAdapters(&a); err == nil {
		t.Fatal("expected error for legacy enabled ollama conflicting with same-name disabled explicit instance")
	}
}

func TestNormalizeAdapters_VllmDisabledSameNameErrors(t *testing.T) {
	a := config.AdaptersConf{
		Vllm: config.VllmConf{Enabled: true, Endpoint: "http://127.0.0.1:8000"},
		VllmInstances: []config.VllmInstanceConf{
			{Name: "vllm", Enabled: false, Endpoint: "http://127.0.0.1:8000"},
		},
	}
	if err := config.NormalizeAdapters(&a); err == nil {
		t.Fatal("expected error for legacy enabled vllm conflicting with same-name disabled explicit instance")
	}
}

func TestLoadEdge_CodexAppServerDefaultProfile(t *testing.T) {
	dir := t.TempDir()
	f := filepath.Join(dir, "edge.yaml")
	yaml := `
server:
  listen: "0.0.0.0:9090"
nodes:
  - alias: "local"
    adapters:
      cli:
        enabled: true
        profiles:
          codex:
            command: "codex"
            args:
              - "app-server"
            mode: "codex-app-server"
          codex-exec:
            command: "codex"
            args:
              - "exec"
              - "--json"
            resume_args:
              - "exec"
              - "resume"
              - "--json"
            output_format: "codex-json"
            mode: "codex-exec"
`
	if err := os.WriteFile(f, []byte(yaml), 0o600); err != nil {
		t.Fatalf("write yaml: %v", err)
	}

	cfg, err := config.LoadEdge(f)
	if err != nil {
		t.Fatalf("load: %v", err)
	}

	if len(cfg.Nodes) == 0 {
		t.Fatal("expected 1 node")
	}
	profiles := cfg.Nodes[0].Adapters.CLI.Profiles

	codex, ok := profiles["codex"]
	if !ok {
		t.Fatal("expected codex profile")
	}
	if codex.Mode != "codex-app-server" {
		t.Errorf("codex.Mode = %q, want %q", codex.Mode, "codex-app-server")
	}
	if len(codex.Args) != 1 || codex.Args[0] != "app-server" {
		t.Errorf("codex.Args = %v, want [app-server]", codex.Args)
	}

	exec, ok := profiles["codex-exec"]
	if !ok {
		t.Fatal("expected codex-exec profile")
	}
	if exec.Mode != "codex-exec" {
		t.Errorf("codex-exec.Mode = %q, want %q", exec.Mode, "codex-exec")
	}
	if exec.OutputFormat != "codex-json" {
		t.Errorf("codex-exec.OutputFormat = %q, want %q", exec.OutputFormat, "codex-json")
	}
	expectedResume := []string{"exec", "resume", "--json"}
	if len(exec.ResumeArgs) != len(expectedResume) {
		t.Fatalf("codex-exec.ResumeArgs = %v, want %v", exec.ResumeArgs, expectedResume)
	}
	for i, v := range expectedResume {
		if exec.ResumeArgs[i] != v {
			t.Errorf("codex-exec.ResumeArgs[%d] = %q, want %q", i, exec.ResumeArgs[i], v)
		}
	}
}

func TestLoadEdge_ControlPlaneOverride(t *testing.T) {
	dir := t.TempDir()
	f := filepath.Join(dir, "edge.yaml")
	yaml := `
server:
  listen: "0.0.0.0:9090"
control_plane:
  enabled: true
  wire_addr: "cp.example.test:7070"
  reconnect_interval_sec: 10
`
	if err := os.WriteFile(f, []byte(yaml), 0o600); err != nil {
		t.Fatalf("write yaml: %v", err)
	}
	cfg, err := config.LoadEdge(f)
	if err != nil {
		t.Fatalf("load: %v", err)
	}
	if !cfg.ControlPlane.Enabled {
		t.Fatal("expected control_plane.enabled=true")
	}
	if cfg.ControlPlane.WireAddr != "cp.example.test:7070" {
		t.Fatalf("expected control_plane.wire_addr=%q, got %q", "cp.example.test:7070", cfg.ControlPlane.WireAddr)
	}
	if cfg.ControlPlane.ReconnectIntervalSec != 10 {
		t.Fatalf("expected control_plane.reconnect_interval_sec=10, got %d", cfg.ControlPlane.ReconnectIntervalSec)
	}
}

func TestLoadEdge_OpenAICompatInstances(t *testing.T) {
	dir := t.TempDir()
	f := filepath.Join(dir, "edge.yaml")
	yaml := `
server:
  listen: "0.0.0.0:9090"
nodes:
  - alias: "lemonade-node"
    adapters:
      openai_compat_instances:
        - name: "lemonade"
          enabled: true
          provider: "lemonade"
          endpoint: "http://127.0.0.1:13305"
          headers:
            Authorization: "Bearer test-key"
          capacity: 4
          max_queue: 10
          queue_timeout_ms: 1500
          request_timeout_ms: 30000
`
	if err := os.WriteFile(f, []byte(yaml), 0o600); err != nil {
		t.Fatalf("write yaml: %v", err)
	}
	cfg, err := config.LoadEdge(f)
	if err != nil {
		t.Fatalf("load: %v", err)
	}
	if len(cfg.Nodes) == 0 {
		t.Fatal("expected 1 node")
	}
	insts := cfg.Nodes[0].Adapters.OpenAICompatInstances
	if len(insts) != 1 {
		t.Fatalf("expected 1 openai_compat instance, got %d", len(insts))
	}
	inst := insts[0]
	if inst.Name != "lemonade" || inst.Provider != "lemonade" || inst.Endpoint != "http://127.0.0.1:13305" {
		t.Errorf("unexpected instance config: %+v", inst)
	}
	if inst.Headers["authorization"] != "Bearer test-key" {
		t.Errorf("expected header authorization Bearer test-key, got %q", inst.Headers["authorization"])
	}
	if inst.Capacity != 4 || inst.MaxQueue != 10 || inst.QueueTimeoutMS != 1500 || inst.RequestTimeoutMS != 30000 {
		t.Errorf("unexpected queue config: %+v", inst)
	}
}

func TestNormalizeAdapters_OpenAICompatIdempotent(t *testing.T) {
	a := config.AdaptersConf{
		OpenAICompat: config.OpenAICompatConf{
			Enabled:  true,
			Provider: "lemonade",
			Endpoint: "http://127.0.0.1:13305",
			Headers:  map[string]string{"X-Test": "val"},
		},
	}
	if err := config.NormalizeAdapters(&a); err != nil {
		t.Fatalf("first normalize: %v", err)
	}
	if len(a.OpenAICompatInstances) != 1 {
		t.Fatalf("expected 1 instance after first normalize, got %d", len(a.OpenAICompatInstances))
	}
	if err := config.NormalizeAdapters(&a); err != nil {
		t.Fatalf("second normalize (idempotent): %v", err)
	}
	if len(a.OpenAICompatInstances) != 1 {
		t.Fatalf("expected still 1 instance after second normalize, got %d", len(a.OpenAICompatInstances))
	}
}

func TestNormalizeAdapters_OpenAICompatConflictErrors(t *testing.T) {
	a := config.AdaptersConf{
		OpenAICompat: config.OpenAICompatConf{Enabled: true, Endpoint: "http://127.0.0.1:13305"},
		OpenAICompatInstances: []config.OpenAICompatInstanceConf{
			{Name: "openai_compat", Enabled: true, Endpoint: "http://other-host:13305"},
		},
	}
	if err := config.NormalizeAdapters(&a); err == nil {
		t.Fatal("expected error for conflicting legacy openai_compat and explicit instance with same name")
	}
}

func TestNormalizeAdapters_OpenAICompatDuplicateNameRejects(t *testing.T) {
	a := config.AdaptersConf{
		OpenAICompatInstances: []config.OpenAICompatInstanceConf{
			{Name: "same", Enabled: true, Endpoint: "http://127.0.0.1:13305"},
			{Name: "same", Enabled: true, Endpoint: "http://127.0.0.2:13305"},
		},
	}
	if err := config.NormalizeAdapters(&a); err == nil {
		t.Fatal("expected error for duplicate openai_compat instance name")
	}
}

func TestNormalizeAdapters_OpenAICompatQueueValidation(t *testing.T) {
	a := config.AdaptersConf{
		OpenAICompatInstances: []config.OpenAICompatInstanceConf{
			{Name: "test", Enabled: true, Endpoint: "http://127.0.0.1:13305", Capacity: -1},
		},
	}
	err := config.NormalizeAdapters(&a)
	if err == nil {
		t.Fatal("expected negative provider queue config error")
	}
	if !strings.Contains(err.Error(), "capacity") {
		t.Fatalf("expected error to mention capacity, got %v", err)
	}
}

// S02 REVIEW_VLLM_CONFIG: vLLM OpenAI-compatible route + instance fixture
// verifies that alias/target/provider/endpoint/no-headers/timeout/queue are
// preserved through config load and mapper/factory contract.
// Provider pool schema validation tests (G06)

func TestLoadEdge_ModelCatalogBasicHappyPath(t *testing.T) {
	// Happy path: models[].providers values must match nodes[].providers[].models.
	dir := t.TempDir()
	f := filepath.Join(dir, "edge.yaml")
	yaml := `
server:
  listen: "0.0.0.0:9090"
models:
  - id: "qwen3.6:35b"
    display_name: "Qwen 3.6 35B"
    context_window_tokens: 262144
    default_max_tokens: 32768
    min_max_tokens: 32768
    default_thinking_token_budget: 8192
    providers:
      vllm-gpu: "nvidia/Qwen3.6-35B-A3B-NVFP4"
      ollama-local: "qwen3.6:35b"
nodes:
  - id: "node-gpu-01"
    alias: "gpu-node"
    providers:
      - id: "vllm-gpu"
        type: "vllm"
        category: "api"
        models:
          - "nvidia/Qwen3.6-35B-A3B-NVFP4"
        capacity: 4
      - id: "ollama-local"
        type: "ollama"
        category: "local_inference"
        models:
          - "qwen3.6:35b"
        capacity: 2
`
	if err := os.WriteFile(f, []byte(yaml), 0o600); err != nil {
		t.Fatalf("write yaml: %v", err)
	}
	cfg, err := config.LoadEdge(f)
	if err != nil {
		t.Fatalf("load: %v", err)
	}
	if len(cfg.Models) != 1 {
		t.Fatalf("expected 1 model catalog entry, got %d", len(cfg.Models))
	}
	m := cfg.Models[0]
	if m.ID != "qwen3.6:35b" {
		t.Errorf("models[0].ID = %q, want %q", m.ID, "qwen3.6:35b")
	}
	if m.DisplayName != "Qwen 3.6 35B" {
		t.Errorf("models[0].DisplayName = %q, want %q", m.DisplayName, "Qwen 3.6 35B")
	}
	if m.ContextWindowTokens != 262144 {
		t.Errorf("models[0].ContextWindowTokens = %d, want 262144", m.ContextWindowTokens)
	}
	if m.DefaultMaxTokens != 32768 {
		t.Errorf("models[0].DefaultMaxTokens = %d, want 32768", m.DefaultMaxTokens)
	}
	if m.MinMaxTokens != 32768 {
		t.Errorf("models[0].MinMaxTokens = %d, want 32768", m.MinMaxTokens)
	}
	if m.DefaultThinkingTokenBudget != 8192 {
		t.Errorf("models[0].DefaultThinkingTokenBudget = %d, want 8192", m.DefaultThinkingTokenBudget)
	}
	if len(m.Providers) != 2 {
		t.Fatalf("expected 2 providers, got %d", len(m.Providers))
	}
	if m.Providers["vllm-gpu"] != "nvidia/Qwen3.6-35B-A3B-NVFP4" {
		t.Errorf("providers[vllm-gpu] = %q, want %q", m.Providers["vllm-gpu"], "nvidia/Qwen3.6-35B-A3B-NVFP4")
	}
	if m.Providers["ollama-local"] != "qwen3.6:35b" {
		t.Errorf("providers[ollama-local] = %q, want %q", m.Providers["ollama-local"], "qwen3.6:35b")
	}
	if len(cfg.Nodes) != 1 {
		t.Fatalf("expected 1 node, got %d", len(cfg.Nodes))
	}
	if len(cfg.Nodes[0].Providers) != 2 {
		t.Fatalf("expected 2 node providers, got %d", len(cfg.Nodes[0].Providers))
	}
	// Check category resolution.
	for _, p := range cfg.Nodes[0].Providers {
		if p.ID == "vllm-gpu" && p.Category != config.CategoryAPI {
			t.Errorf("providers[vllm-gpu].Category = %q, want %q", p.Category, config.CategoryAPI)
		}
		if p.ID == "ollama-local" && p.Category != config.CategoryLocalInference {
			t.Errorf("providers[ollama-local].Category = %q, want %q", p.Category, config.CategoryLocalInference)
		}
	}
}

func TestLoadEdge_ModelCatalogEmptyModelIDRejected(t *testing.T) {
	// No models[] on node, so serve model check is skipped (legacy compat).
	dir := t.TempDir()
	f := filepath.Join(dir, "edge.yaml")
	yaml := `
server:
  listen: "0.0.0.0:9090"
models:
  - id: ""
    providers:
      vllm-gpu: "model-a"
nodes:
  - id: "node-01"
    providers:
      - id: "vllm-gpu"
        type: "vllm"
        category: "api"
`
	if err := os.WriteFile(f, []byte(yaml), 0o600); err != nil {
		t.Fatalf("write yaml: %v", err)
	}
	_, err := config.LoadEdge(f)
	if err == nil {
		t.Fatal("expected error for empty model id")
	}
	if !strings.Contains(err.Error(), "models[0]") || !strings.Contains(err.Error(), "id must not be empty") {
		t.Fatalf("expected error mentioning models[0] and id must not be empty, got %v", err)
	}
}

func TestLoadEdge_ModelCatalogDuplicateModelIDRejected(t *testing.T) {
	// serve model membership fail → 다른 error로 먼저 실패해야 하지만 duplicate 체크가
	// 먼저 발생하므로 models validation 전에 seen check가 먼저 통과하는 fixture.
	dir := t.TempDir()
	f := filepath.Join(dir, "edge.yaml")
	yaml := `
server:
  listen: "0.0.0.0:9090"
models:
  - id: "qwen3.6:35b"
    providers:
      vllm-gpu: "model-a"
  - id: "qwen3.6:35b"
    providers:
      ollama: "qwen3.6"
nodes:
  - id: "node-01"
    providers:
      - id: "vllm-gpu"
        type: "vllm"
        category: "api"
        models:
          - "model-a"
      - id: "ollama"
        type: "ollama"
        category: "local_inference"
        models:
          - "qwen3.6"
`
	if err := os.WriteFile(f, []byte(yaml), 0o600); err != nil {
		t.Fatalf("write yaml: %v", err)
	}
	_, err := config.LoadEdge(f)
	if err == nil {
		t.Fatal("expected error for duplicate model id")
	}
	if !strings.Contains(err.Error(), "duplicate model id") {
		t.Fatalf("expected error mentioning duplicate model id, got %v", err)
	}
}

func TestLoadEdge_ModelCatalogEmptyProvidersRejected(t *testing.T) {
	dir := t.TempDir()
	f := filepath.Join(dir, "edge.yaml")
	yaml := `
server:
  listen: "0.0.0.0:9090"
models:
  - id: "qwen3.6:35b"
    providers: {}
nodes:
  - id: "node-01"
    providers:
      - id: "vllm-gpu"
        type: "vllm"
        category: "api"
`
	if err := os.WriteFile(f, []byte(yaml), 0o600); err != nil {
		t.Fatalf("write yaml: %v", err)
	}
	_, err := config.LoadEdge(f)
	if err == nil {
		t.Fatal("expected error for empty providers")
	}
	if !strings.Contains(err.Error(), "providers must not be empty") {
		t.Fatalf("expected error mentioning providers must not be empty, got %v", err)
	}
}

func TestLoadEdge_ModelCatalogContextWindowRejectsNegative(t *testing.T) {
	dir := t.TempDir()
	f := filepath.Join(dir, "edge.yaml")
	yaml := `
server:
  listen: "0.0.0.0:9090"
models:
  - id: "qwen3.6:35b"
    context_window_tokens: -1
    providers:
      vllm-gpu: "model-a"
nodes:
  - id: "node-01"
    providers:
      - id: "vllm-gpu"
        type: "vllm"
        category: "api"
        models:
          - "model-a"
`
	if err := os.WriteFile(f, []byte(yaml), 0o600); err != nil {
		t.Fatalf("write yaml: %v", err)
	}
	_, err := config.LoadEdge(f)
	if err == nil {
		t.Fatal("expected error for negative context_window_tokens")
	}
	if !strings.Contains(err.Error(), "context_window_tokens must be non-negative") {
		t.Fatalf("expected error mentioning context_window_tokens, got %v", err)
	}
}

func TestLoadEdge_ModelCatalogServedModelMembershipMissing(t *testing.T) {
	dir := t.TempDir()
	f := filepath.Join(dir, "edge.yaml")
	yaml := `
server:
  listen: "0.0.0.0:9090"
models:
  - id: "qwen3.6:35b"
    providers:
      vllm-gpu: "typo-model"
nodes:
  - id: "node-gpu-01"
    providers:
      - id: "vllm-gpu"
        type: "vllm"
        category: "api"
        models:
          - "nvidia/Qwen3.6-35B-A3B-NVFP4"
`
	if err := os.WriteFile(f, []byte(yaml), 0o600); err != nil {
		t.Fatalf("write yaml: %v", err)
	}
	_, err := config.LoadEdge(f)
	if err == nil {
		t.Fatal("expected error for served model not in provider's models list")
	}
	if !strings.Contains(err.Error(), "typo-model") || !strings.Contains(err.Error(), "vllm-gpu") {
		t.Fatalf("expected error mentioning typo-model and vllm-gpu, got %v", err)
	}
}

func TestLoadEdge_ModelCatalogUnresolvedProviderRejected(t *testing.T) {
	dir := t.TempDir()
	f := filepath.Join(dir, "edge.yaml")
	yaml := `
server:
  listen: "0.0.0.0:9090"
models:
  - id: "qwen3.6:35b"
    providers:
      non-existent: "model-a"
nodes:
  - id: "node-01"
    providers:
      - id: "vllm-gpu"
        type: "vllm"
        category: "api"
`
	if err := os.WriteFile(f, []byte(yaml), 0o600); err != nil {
		t.Fatalf("write yaml: %v", err)
	}
	_, err := config.LoadEdge(f)
	if err == nil {
		t.Fatal("expected error for unresolved provider id")
	}
	if !strings.Contains(err.Error(), "does not resolve") || !strings.Contains(err.Error(), "non-existent") {
		t.Fatalf("expected error mentioning does not resolve and non-existent, got %v", err)
	}
}

func TestLoadEdge_ModelCatalogEmptyProviderIDRejected(t *testing.T) {
	dir := t.TempDir()
	f := filepath.Join(dir, "edge.yaml")
	yaml := `
server:
  listen: "0.0.0.0:9090"
models:
  - id: "qwen3.6:35b"
    providers:
      "": "model-a"
nodes:
  - id: "node-01"
    providers:
      - id: "vllm-gpu"
        type: "vllm"
        category: "api"
`
	if err := os.WriteFile(f, []byte(yaml), 0o600); err != nil {
		t.Fatalf("write yaml: %v", err)
	}
	_, err := config.LoadEdge(f)
	if err == nil {
		t.Fatal("expected error for empty provider id in models[].providers")
	}
	if !strings.Contains(err.Error(), "provider id must not be empty") {
		t.Fatalf("expected error mentioning provider id must not be empty, got %v", err)
	}
}

func TestLoadEdge_ModelCatalogEmptyServedModelRejected(t *testing.T) {
	dir := t.TempDir()
	f := filepath.Join(dir, "edge.yaml")
	yaml := `
server:
  listen: "0.0.0.0:9090"
models:
  - id: "qwen3.6:35b"
    providers:
      vllm-gpu: ""
nodes:
  - id: "node-01"
    providers:
      - id: "vllm-gpu"
        type: "vllm"
        category: "api"
`
	if err := os.WriteFile(f, []byte(yaml), 0o600); err != nil {
		t.Fatalf("write yaml: %v", err)
	}
	_, err := config.LoadEdge(f)
	if err == nil {
		t.Fatal("expected error for empty served model name")
	}
	if !strings.Contains(err.Error(), "served model name must not be empty") {
		t.Fatalf("expected error mentioning served model name must not be empty, got %v", err)
	}
}

func TestLoadEdge_NodeProviderConfEmptyIDRejected(t *testing.T) {
	dir := t.TempDir()
	f := filepath.Join(dir, "edge.yaml")
	yaml := `
server:
  listen: "0.0.0.0:9090"
nodes:
  - id: "node-01"
    providers:
      - id: ""
        type: "vllm"
        category: "api"
`
	if err := os.WriteFile(f, []byte(yaml), 0o600); err != nil {
		t.Fatalf("write yaml: %v", err)
	}
	_, err := config.LoadEdge(f)
	if err == nil {
		t.Fatal("expected error for empty node provider id")
	}
	if !strings.Contains(err.Error(), "providers[].id must not be empty") {
		t.Fatalf("expected error mentioning providers[].id must not be empty, got %v", err)
	}
}

func TestLoadEdge_NodeProviderConfEmptyTypeRejected(t *testing.T) {
	dir := t.TempDir()
	f := filepath.Join(dir, "edge.yaml")
	yaml := `
server:
  listen: "0.0.0.0:9090"
nodes:
  - id: "node-01"
    providers:
      - id: "p1"
        type: ""
        category: "api"
`
	if err := os.WriteFile(f, []byte(yaml), 0o600); err != nil {
		t.Fatalf("write yaml: %v", err)
	}
	_, err := config.LoadEdge(f)
	if err == nil {
		t.Fatal("expected error for empty provider type")
	}
	if !strings.Contains(err.Error(), "type must not be empty") {
		t.Fatalf("expected error mentioning type must not be empty, got %v", err)
	}
}

func TestLoadEdge_NodeProviderConfInvalidCategoryRejected(t *testing.T) {
	dir := t.TempDir()
	f := filepath.Join(dir, "edge.yaml")
	yaml := `
server:
  listen: "0.0.0.0:9090"
nodes:
  - id: "node-01"
    providers:
      - id: "p1"
        type: "vllm"
        category: "invalid_category"
`
	if err := os.WriteFile(f, []byte(yaml), 0o600); err != nil {
		t.Fatalf("write yaml: %v", err)
	}
	_, err := config.LoadEdge(f)
	if err == nil {
		t.Fatal("expected error for invalid provider category")
	}
	if !strings.Contains(err.Error(), "invalid provider category") {
		t.Fatalf("expected error mentioning invalid provider category, got %v", err)
	}
}

func TestLoadEdge_NodeProviderConfDuplicateIDRejected(t *testing.T) {
	dir := t.TempDir()
	f := filepath.Join(dir, "edge.yaml")
	yaml := `
server:
  listen: "0.0.0.0:9090"
nodes:
  - id: "node-01"
    providers:
      - id: "p1"
        type: "vllm"
        category: "api"
      - id: "p1"
        type: "ollama"
        category: "local_inference"
`
	if err := os.WriteFile(f, []byte(yaml), 0o600); err != nil {
		t.Fatalf("write yaml: %v", err)
	}
	_, err := config.LoadEdge(f)
	if err == nil {
		t.Fatal("expected error for duplicate provider id within a node")
	}
	if !strings.Contains(err.Error(), "duplicate provider id") {
		t.Fatalf("expected error mentioning duplicate provider id, got %v", err)
	}
}

func TestLoadEdge_NodeProviderConfNegativeCapacityRejected(t *testing.T) {
	dir := t.TempDir()
	f := filepath.Join(dir, "edge.yaml")
	yaml := `
server:
  listen: "0.0.0.0:9090"
nodes:
  - id: "node-01"
    providers:
      - id: "p1"
        type: "vllm"
        category: "api"
        capacity: -1
`
	if err := os.WriteFile(f, []byte(yaml), 0o600); err != nil {
		t.Fatalf("write yaml: %v", err)
	}
	_, err := config.LoadEdge(f)
	if err == nil {
		t.Fatal("expected error for negative provider capacity")
	}
	if !strings.Contains(err.Error(), "capacity must be non-negative") {
		t.Fatalf("expected error mentioning capacity must be non-negative, got %v", err)
	}
}

func TestLoadEdge_NodeProviderConfEmptyServedModelRejected(t *testing.T) {
	dir := t.TempDir()
	f := filepath.Join(dir, "edge.yaml")
	yaml := `
server:
  listen: "0.0.0.0:9090"
nodes:
  - id: "node-01"
    providers:
      - id: "p1"
        type: "vllm"
        category: "api"
        models:
          - ""
          - "real-model"
`
	if err := os.WriteFile(f, []byte(yaml), 0o600); err != nil {
		t.Fatalf("write yaml: %v", err)
	}
	_, err := config.LoadEdge(f)
	if err == nil {
		t.Fatal("expected error for empty served model in provider models list")
	}
	if !strings.Contains(err.Error(), "served model name must not be empty") {
		t.Fatalf("expected error mentioning served model name must not be empty, got %v", err)
	}
}

func TestModelCatalogEntry_Validate(t *testing.T) {
	providerIDs := map[string]struct{}{
		"vllm-gpu":   {},
		"ollama-loc": {},
	}

	// Happy path with serveModels
	serveModels := map[string]map[string]struct{}{
		"vllm-gpu":   {"nvidia/Qwen3.6-35B": {}},
		"ollama-loc": {"qwen3.6:35b": {}},
	}
	e := config.ModelCatalogEntry{
		ID:                         "qwen3.6:35b",
		DisplayName:                "Qwen 3.6 35B",
		ContextWindowTokens:        262144,
		DefaultMaxTokens:           32768,
		MinMaxTokens:               32768,
		DefaultThinkingTokenBudget: 8192,
		Providers: map[string]string{
			"vllm-gpu":   "nvidia/Qwen3.6-35B",
			"ollama-loc": "qwen3.6:35b",
		},
	}
	if err := e.Validate(providerIDs, serveModels); err != nil {
		t.Fatalf("expected no error, got: %v", err)
	}

	// Happy path without serveModels (legacy behavior)
	e5 := config.ModelCatalogEntry{
		ID:        "test",
		Providers: map[string]string{"vllm-gpu": "m"},
	}
	if err := e5.Validate(providerIDs, nil); err != nil {
		t.Fatalf("expected no error with nil serveModels, got: %v", err)
	}

	// Trimmed empty ID
	e2 := config.ModelCatalogEntry{
		ID:        "  ",
		Providers: map[string]string{"vllm-gpu": "m"},
	}
	if err := e2.Validate(providerIDs, serveModels); err == nil {
		t.Fatal("expected error for trimmed empty ID")
	}

	// Empty providers map
	e3 := config.ModelCatalogEntry{
		ID:        "test",
		Providers: map[string]string{},
	}
	if err := e3.Validate(providerIDs, serveModels); err == nil {
		t.Fatal("expected error for empty providers map")
	}

	// Unresolved provider
	e4 := config.ModelCatalogEntry{
		ID: "test",
		Providers: map[string]string{
			"unknown-provider": "m",
		},
	}
	if err := e4.Validate(providerIDs, serveModels); err == nil {
		t.Fatal("expected error for unresolved provider")
	}

	// Negative and inconsistent generation policy
	for _, tc := range []struct {
		name  string
		entry config.ModelCatalogEntry
	}{
		{
			name: "negative context window tokens",
			entry: config.ModelCatalogEntry{
				ID:                  "test",
				ContextWindowTokens: -1,
				Providers:           map[string]string{"vllm-gpu": "m"},
			},
		},
		{
			name: "negative default max tokens",
			entry: config.ModelCatalogEntry{
				ID:               "test",
				DefaultMaxTokens: -1,
				Providers:        map[string]string{"vllm-gpu": "m"},
			},
		},
		{
			name: "negative min max tokens",
			entry: config.ModelCatalogEntry{
				ID:           "test",
				MinMaxTokens: -1,
				Providers:    map[string]string{"vllm-gpu": "m"},
			},
		},
		{
			name: "negative thinking budget",
			entry: config.ModelCatalogEntry{
				ID:                         "test",
				DefaultThinkingTokenBudget: -1,
				Providers:                  map[string]string{"vllm-gpu": "m"},
			},
		},
		{
			name: "default below min",
			entry: config.ModelCatalogEntry{
				ID:               "test",
				DefaultMaxTokens: 8,
				MinMaxTokens:     16,
				Providers:        map[string]string{"vllm-gpu": "m"},
			},
		},
	} {
		t.Run(tc.name, func(t *testing.T) {
			if err := tc.entry.Validate(providerIDs, nil); err == nil {
				t.Fatal("expected error for invalid generation policy")
			}
		})
	}
}

func TestNodeProviderConf_Validate(t *testing.T) {
	// Happy path
	p := config.NodeProviderConf{
		ID:       "p1",
		Type:     "vllm",
		Category: config.CategoryAPI,
		Models:   []string{"model-a", "model-b"},
		Capacity: 4,
	}
	if err := p.Validate(); err != nil {
		t.Fatalf("expected no error, got: %v", err)
	}

	// Empty ID
	p2 := config.NodeProviderConf{ID: "", Type: "vllm", Category: config.CategoryAPI}
	if err := p2.Validate(); err == nil {
		t.Fatal("expected error for empty ID")
	}

	// Empty Type
	p3 := config.NodeProviderConf{ID: "p1", Type: "", Category: config.CategoryAPI}
	if err := p3.Validate(); err == nil {
		t.Fatal("expected error for empty Type")
	}

	// Invalid Category
	p4 := config.NodeProviderConf{ID: "p1", Type: "vllm", Category: "invalid"}
	if err := p4.Validate(); err == nil {
		t.Fatal("expected error for invalid category")
	}

	// Empty model in models list
	p5 := config.NodeProviderConf{
		ID:       "p1",
		Type:     "vllm",
		Category: config.CategoryAPI,
		Models:   []string{"", "real"},
	}
	if err := p5.Validate(); err == nil {
		t.Fatal("expected error for empty model in list")
	}

	// Negative capacity
	p6 := config.NodeProviderConf{
		ID:       "p1",
		Type:     "vllm",
		Category: config.CategoryAPI,
		Capacity: -1,
	}
	if err := p6.Validate(); err == nil {
		t.Fatal("expected error for negative capacity")
	}

	// Negative max_queue
	p7 := config.NodeProviderConf{
		ID:       "p1",
		Type:     "vllm",
		Category: config.CategoryAPI,
		MaxQueue: -1,
	}
	if err := p7.Validate(); err == nil {
		t.Fatal("expected error for negative max_queue")
	}

	// Negative queue_timeout_ms
	p8 := config.NodeProviderConf{
		ID:             "p1",
		Type:           "vllm",
		Category:       config.CategoryAPI,
		QueueTimeoutMS: -1,
	}
	if err := p8.Validate(); err == nil {
		t.Fatal("expected error for negative queue_timeout_ms")
	}
}

func TestLoadEdge_ProviderPoolLegacyCompatibility(t *testing.T) {
	// Legacy openai.model_routes must still work alongside the new models[]/providers[].
	dir := t.TempDir()
	f := filepath.Join(dir, "edge.yaml")
	yaml := `
server:
  listen: "0.0.0.0:9090"
openai:
  enabled: true
  model_routes:
    - model: "codex"
      adapter: "cli"
      target: "codex"
      workspace_required: true
models:
  - id: "qwen3.6:35b"
    providers:
      vllm-gpu: "nvidia/Qwen3.6-35B"
nodes:
  - id: "node-gpu-01"
    providers:
      - id: "vllm-gpu"
        type: "vllm"
        category: "api"
        models:
          - "nvidia/Qwen3.6-35B"
`
	if err := os.WriteFile(f, []byte(yaml), 0o600); err != nil {
		t.Fatalf("write yaml: %v", err)
	}
	cfg, err := config.LoadEdge(f)
	if err != nil {
		t.Fatalf("load: %v", err)
	}
	if len(cfg.OpenAI.ModelRoutes) != 1 {
		t.Fatalf("expected 1 legacy route, got %d", len(cfg.OpenAI.ModelRoutes))
	}
	if len(cfg.Models) != 1 {
		t.Fatalf("expected 1 models[] entry, got %d", len(cfg.Models))
	}
}

// S02 REVIEW_VLLM_CONFIG: vLLM OpenAI-compatible route + instance fixture
// verifies that alias/target/provider/endpoint/no-headers/timeout/queue are
// preserved through config load and mapper/factory contract.
func TestLoadEdge_VLLMOpenAIRouteAndInstance(t *testing.T) {
	dir := t.TempDir()
	f := filepath.Join(dir, "edge.yaml")
	yaml := `
server:
  listen: "0.0.0.0:9090"
openai:
  enabled: true
  model_routes:
    - model: "qwen3.6:35b"
      adapter: "openai_compat"
      target: "nvidia/Qwen3.6-35B-A3B-NVFP4"
      node: "node-vllm-01"
      max_queue: 10
      queue_timeout_ms: 30000
    - model: "codex-agent"
      adapter: "cli"
      target: "codex"
      workspace_required: true
nodes:
  - id: "node-vllm-01"
    alias: "vllm-gpu-node"
    token: "<node-token>"
    adapters:
      openai_compat_instances:
        - name: "vllm-gpu"
          enabled: true
          provider: "vllm"
          endpoint: "http://127.0.0.1:8000/v1"
          capacity: 4
          max_queue: 16
          queue_timeout_ms: 30000
          request_timeout_ms: 120000
      cli:
        enabled: true
        profiles:
          codex:
            command: "codex"
            mode: "codex-exec"
`
	if err := os.WriteFile(f, []byte(yaml), 0o600); err != nil {
		t.Fatalf("write yaml: %v", err)
	}
	cfg, err := config.LoadEdge(f)
	if err != nil {
		t.Fatalf("load: %v", err)
	}

	// Verify model_routes: vLLM route has no provider field (only adapter/target).
	if len(cfg.OpenAI.ModelRoutes) != 2 {
		t.Fatalf("expected 2 model_routes, got %d", len(cfg.OpenAI.ModelRoutes))
	}
	vllmRoute := cfg.OpenAI.ModelRoutes[0]
	if vllmRoute.Model != "qwen3.6:35b" {
		t.Errorf("model: got %q, want %q", vllmRoute.Model, "qwen3.6:35b")
	}
	if vllmRoute.Adapter != "openai_compat" {
		t.Errorf("adapter: got %q, want %q", vllmRoute.Adapter, "openai_compat")
	}
	if vllmRoute.Target != "nvidia/Qwen3.6-35B-A3B-NVFP4" {
		t.Errorf("target: got %q, want %q", vllmRoute.Target, "nvidia/Qwen3.6-35B-A3B-NVFP4")
	}
	if vllmRoute.NodeRef != "node-vllm-01" {
		t.Errorf("node: got %q, want %q", vllmRoute.NodeRef, "node-vllm-01")
	}
	if vllmRoute.MaxQueue != 10 || vllmRoute.QueueTimeoutMS != 30000 {
		t.Errorf("queue policy mismatch: max_queue=%d, queue_timeout_ms=%d", vllmRoute.MaxQueue, vllmRoute.QueueTimeoutMS)
	}
	// Codex agent route: workspace_required=true.
	agentRoute := cfg.OpenAI.ModelRoutes[1]
	if agentRoute.Model != "codex-agent" || agentRoute.Adapter != "cli" || agentRoute.Target != "codex" {
		t.Errorf("agent route mismatch: %+v", agentRoute)
	}
	if !agentRoute.WorkspaceRequired {
		t.Error("agent route workspace_required should be true")
	}

	// Verify openai_compat_instances: provider="vllm", endpoint, no headers, queue policy.
	nodes := cfg.Nodes
	if len(nodes) != 1 {
		t.Fatalf("expected 1 node, got %d", len(nodes))
	}
	insts := nodes[0].Adapters.OpenAICompatInstances
	if len(insts) != 1 {
		t.Fatalf("expected 1 openai_compat instance, got %d", len(insts))
	}
	inst := insts[0]
	if inst.Name != "vllm-gpu" {
		t.Errorf("instance name: got %q, want %q", inst.Name, "vllm-gpu")
	}
	if inst.Provider != "vllm" {
		t.Errorf("provider: got %q, want %q", inst.Provider, "vllm")
	}
	if inst.Endpoint != "http://127.0.0.1:8000/v1" {
		t.Errorf("endpoint: got %q, want %q", inst.Endpoint, "http://127.0.0.1:8000/v1")
	}
	if len(inst.Headers) != 0 {
		t.Errorf("expected no headers for vLLM, got %+v", inst.Headers)
	}
	if inst.Capacity != 4 || inst.MaxQueue != 16 || inst.QueueTimeoutMS != 30000 || inst.RequestTimeoutMS != 120000 {
		t.Errorf("queue config mismatch: %+v", inst)
	}
}

func TestLoad_NodeReconnectDefaults(t *testing.T) {
	dir := t.TempDir()
	f := filepath.Join(dir, "node.yaml")
	if err := os.WriteFile(f, []byte("transport:\n  edge_addr: \"localhost:9090\"\n  token: \"tok\"\n"), 0o600); err != nil {
		t.Fatalf("write yaml: %v", err)
	}
	cfg, err := config.Load(f)
	if err != nil {
		t.Fatalf("load: %v", err)
	}
	if cfg.Reconnect.IntervalSec != 10 {
		t.Fatalf("expected reconnect.interval_sec=10, got %d", cfg.Reconnect.IntervalSec)
	}
	if cfg.Reconnect.MaxAttempts != 10 {
		t.Fatalf("expected reconnect.max_attempts=10, got %d", cfg.Reconnect.MaxAttempts)
	}
}

func TestLoad_NodeReconnectOverride(t *testing.T) {
	dir := t.TempDir()
	f := filepath.Join(dir, "node.yaml")
	yaml := "transport:\n  edge_addr: \"localhost:9090\"\n  token: \"tok\"\nreconnect:\n  interval_sec: 30\n  max_attempts: 5\n"
	if err := os.WriteFile(f, []byte(yaml), 0o600); err != nil {
		t.Fatalf("write yaml: %v", err)
	}
	cfg, err := config.Load(f)
	if err != nil {
		t.Fatalf("load: %v", err)
	}
	if cfg.Reconnect.IntervalSec != 30 {
		t.Fatalf("expected reconnect.interval_sec=30, got %d", cfg.Reconnect.IntervalSec)
	}
	if cfg.Reconnect.MaxAttempts != 5 {
		t.Fatalf("expected reconnect.max_attempts=5, got %d", cfg.Reconnect.MaxAttempts)
	}
}

func TestLoadEdge_ProviderFirstNodeProvidersHappyPath(t *testing.T) {
	dir := t.TempDir()
	f := filepath.Join(dir, "edge.yaml")
	yaml := `
server:
  listen: "0.0.0.0:9090"
nodes:
  - alias: "gpu-node"
    providers:
      - id: "openai-provider"
        type: "openai_compat"
        category: "api"
        endpoint: "http://127.0.0.1:8000/v1"
        headers:
          Authorization: "Bearer test"
        capacity: 5
      - id: "ollama-provider"
        type: "ollama"
        category: "local_inference"
        base_url: "http://127.0.0.1:11434"
        context_size: 4096
        capacity: 2
      - id: "cli-provider"
        type: "cli"
        category: "cli"
        command: "python"
        args: ["-m", "cli"]
        capacity: 1
`
	if err := os.WriteFile(f, []byte(yaml), 0o600); err != nil {
		t.Fatalf("write yaml: %v", err)
	}
	cfg, err := config.LoadEdge(f)
	if err != nil {
		t.Fatalf("load: %v", err)
	}

	if len(cfg.Nodes) != 1 {
		t.Fatalf("expected 1 node, got %d", len(cfg.Nodes))
	}
	providers := cfg.Nodes[0].Providers
	if len(providers) != 3 {
		t.Fatalf("expected 3 providers, got %d", len(providers))
	}

	// Verify openai-provider
	p1 := providers[0]
	if p1.ID != "openai-provider" || p1.Type != "openai_compat" || p1.Endpoint != "http://127.0.0.1:8000/v1" {
		t.Errorf("unexpected openai-provider fields: %+v", p1)
	}
	if p1.Headers["Authorization"] != "Bearer test" && p1.Headers["authorization"] != "Bearer test" {
		t.Errorf("expected Authorization header, got %v", p1.Headers)
	}

	// Verify ollama-provider
	p2 := providers[1]
	if p2.ID != "ollama-provider" || p2.Type != "ollama" || p2.BaseURL != "http://127.0.0.1:11434" || p2.ContextSize != 4096 {
		t.Errorf("unexpected ollama-provider fields: %+v", p2)
	}

	// Verify cli-provider
	p3 := providers[2]
	if p3.ID != "cli-provider" || p3.Type != "cli" || p3.Command != "python" || len(p3.Args) != 2 {
		t.Errorf("unexpected cli-provider fields: %+v", p3)
	}
}

func TestLoadEdge_RejectWhitespaceProviderType(t *testing.T) {
	dir := t.TempDir()
	f := filepath.Join(dir, "edge.yaml")
	yaml := `
server:
  listen: "0.0.0.0:9090"
nodes:
  - alias: "local"
    providers:
      - id: "whitespace-provider"
        type: " "
        category: "api"
        endpoint: "http://127.0.0.1:8000/v1"
`
	if err := os.WriteFile(f, []byte(yaml), 0o600); err != nil {
		t.Fatalf("write yaml: %v", err)
	}
	_, err := config.LoadEdge(f)
	if err == nil {
		t.Fatal("expected error for whitespace provider type, got nil")
	}
	if !strings.Contains(err.Error(), "type must not be empty") {
		t.Fatalf("expected error containing 'type must not be empty', got %v", err)
	}
}

// REVIEW_REVIEW_COMPAT-1: TestLoadEdge_LegacyOnlyConfigRegression
// verifies that a pure legacy-only config (adapters only, no providers)
// still loads successfully and the node has an empty Providers list.
func TestLoadEdge_LegacyOnlyConfigRegression(t *testing.T) {
	dir := t.TempDir()
	f := filepath.Join(dir, "edge.yaml")
	yaml := `
server:
  listen: "0.0.0.0:9090"
nodes:
  - alias: "local"
    adapters:
      ollama:
        enabled: true
        base_url: "http://127.0.0.1:11434"
`
	if err := os.WriteFile(f, []byte(yaml), 0o600); err != nil {
		t.Fatalf("write yaml: %v", err)
	}
	cfg, err := config.LoadEdge(f)
	if err != nil {
		t.Fatalf("LoadEdge should succeed for pure legacy-only config: %v", err)
	}
	if len(cfg.Nodes) != 1 {
		t.Fatalf("expected 1 node, got %d", len(cfg.Nodes))
	}
	if len(cfg.Nodes[0].Providers) != 0 {
		t.Fatalf("expected empty Providers list for legacy-only config, got %d providers", len(cfg.Nodes[0].Providers))
	}
}

// COMPAT-1: TestLoadEdge_ProviderFirstLegacyIdenticalMixedAllowed verifies that
// provider-first resources and legacy adapters with matching fields coexist
// without errors when the key (provider id == adapter instance name) is shared.
func TestLoadEdge_ProviderFirstLegacyIdenticalMixedAllowed(t *testing.T) {
	dir := t.TempDir()
	f := filepath.Join(dir, "edge.yaml")
	yaml := `
server:
  listen: "0.0.0.0:9090"
nodes:
  - alias: "local"
    adapters:
      ollama:
        enabled: true
        base_url: "http://127.0.0.1:11434"
        context_size: 4096
        capacity: 2
    providers:
      - id: "ollama"
        type: "ollama"
        category: "local_inference"
        base_url: "http://127.0.0.1:11434"
        models:
          - "llama3:8b"
        capacity: 2
`
	if err := os.WriteFile(f, []byte(yaml), 0o600); err != nil {
		t.Fatalf("write yaml: %v", err)
	}
	cfg, err := config.LoadEdge(f)
	if err != nil {
		t.Fatalf("LoadEdge should succeed for identical mixed config: %v", err)
	}
	if len(cfg.Nodes) != 1 || len(cfg.Nodes[0].Providers) != 1 {
		t.Fatalf("expected 1 node with 1 provider, got %d nodes", len(cfg.Nodes))
	}
}

// COMPAT-1: TestLoadEdge_ProviderFirstLegacyConflictRejected verifies that
// provider-first resources and legacy adapters with different field values
// for the same key produce a validation error.
func TestLoadEdge_ProviderFirstLegacyConflictRejected(t *testing.T) {
	dir := t.TempDir()
	f := filepath.Join(dir, "edge.yaml")
	yaml := `
server:
  listen: "0.0.0.0:9090"
nodes:
  - alias: "local"
    adapters:
      ollama:
        enabled: true
        base_url: "http://127.0.0.1:11434"
        capacity: 2
    providers:
      - id: "ollama"
        type: "ollama"
        category: "local_inference"
        base_url: "http://other-host:11434"
        models:
          - "llama3:8b"
        capacity: 2
`
	if err := os.WriteFile(f, []byte(yaml), 0o600); err != nil {
		t.Fatalf("write yaml: %v", err)
	}
	_, err := config.LoadEdge(f)
	if err == nil {
		t.Fatal("expected error for conflicting provider-first and legacy ollama config")
	}
	if !strings.Contains(err.Error(), "conflicts with adapters") {
		t.Fatalf("expected error containing 'conflicts with adapters', got %v", err)
	}
}

// REVIEW_COMPAT-1: TestLoadEdge_ProviderFirstLegacyCapacityMismatchZeroProvider
// verifies that same-key provider-first/legacy mixed config is rejected when
// provider capacity is 0 (not-dispatchable) and legacy capacity is > 0.
func TestLoadEdge_ProviderFirstLegacyCapacityMismatchZeroProvider(t *testing.T) {
	dir := t.TempDir()
	f := filepath.Join(dir, "edge.yaml")
	yaml := `
server:
  listen: "0.0.0.0:9090"
nodes:
  - alias: "local"
    adapters:
      ollama:
        enabled: true
        base_url: "http://127.0.0.1:11434"
        capacity: 2
    providers:
      - id: "ollama"
        type: "ollama"
        category: "local_inference"
        base_url: "http://127.0.0.1:11434"
        models:
          - "llama3:8b"
        capacity: 0
`
	if err := os.WriteFile(f, []byte(yaml), 0o600); err != nil {
		t.Fatalf("write yaml: %v", err)
	}
	_, err := config.LoadEdge(f)
	if err == nil {
		t.Fatal("expected error for provider capacity 0 / legacy capacity 2 conflict")
	}
	if !strings.Contains(err.Error(), "conflicts with adapters") || !strings.Contains(err.Error(), "capacity mismatch") {
		t.Fatalf("expected error containing 'conflicts with adapters' and 'capacity mismatch', got %v", err)
	}
}

// REVIEW_COMPAT-1: TestLoadEdge_ProviderFirstLegacyCapacityMismatchOmittedProvider
// verifies that same-key provider-first/legacy mixed config is rejected when
// provider capacity is omitted (defaults to 0) and legacy capacity is > 0.
func TestLoadEdge_ProviderFirstLegacyCapacityMismatchOmittedProvider(t *testing.T) {
	dir := t.TempDir()
	f := filepath.Join(dir, "edge.yaml")
	yaml := `
server:
  listen: "0.0.0.0:9090"
nodes:
  - alias: "local"
    adapters:
      ollama:
        enabled: true
        base_url: "http://127.0.0.1:11434"
        capacity: 3
    providers:
      - id: "ollama"
        type: "ollama"
        category: "local_inference"
        base_url: "http://127.0.0.1:11434"
        models:
          - "llama3:8b"
`
	if err := os.WriteFile(f, []byte(yaml), 0o600); err != nil {
		t.Fatalf("write yaml: %v", err)
	}
	_, err := config.LoadEdge(f)
	if err == nil {
		t.Fatal("expected error for omitted provider capacity / legacy capacity 3 conflict")
	}
	if !strings.Contains(err.Error(), "conflicts with adapters") || !strings.Contains(err.Error(), "capacity mismatch") {
		t.Fatalf("expected error containing 'conflicts with adapters' and 'capacity mismatch', got %v", err)
	}
}

// REVIEW_COMPAT-1: TestLoadEdge_ProviderFirstLegacyCapacityMismatchVllm
// verifies capacity mismatch rejection for vllm/openai_compat provider type.
func TestLoadEdge_ProviderFirstLegacyCapacityMismatchVllm(t *testing.T) {
	dir := t.TempDir()
	f := filepath.Join(dir, "edge.yaml")
	yaml := `
server:
  listen: "0.0.0.0:9090"
nodes:
  - alias: "local"
    adapters:
      openai_compat_instances:
        - name: "vllm-gpu"
          enabled: true
          endpoint: "http://127.0.0.1:8000/v1"
          capacity: 4
    providers:
      - id: "vllm-gpu"
        type: "vllm"
        category: "api"
        endpoint: "http://127.0.0.1:8000/v1"
        models:
          - "model-a"
        capacity: 0
`
	if err := os.WriteFile(f, []byte(yaml), 0o600); err != nil {
		t.Fatalf("write yaml: %v", err)
	}
	_, err := config.LoadEdge(f)
	if err == nil {
		t.Fatal("expected error for vllm provider capacity 0 / legacy capacity 4 conflict")
	}
	if !strings.Contains(err.Error(), "conflicts with adapters") || !strings.Contains(err.Error(), "capacity mismatch") {
		t.Fatalf("expected error containing 'conflicts with adapters' and 'capacity mismatch', got %v", err)
	}
}

// TestLoadEdge_NodeProviderPriorityOmittedDefaultsZero verifies that when
// priority is omitted from a provider entry, it defaults to zero.
func TestLoadEdge_NodeProviderPriorityOmittedDefaultsZero(t *testing.T) {
	dir := t.TempDir()
	f := filepath.Join(dir, "edge.yaml")
	yaml := `
server:
  listen: "0.0.0.0:9090"
nodes:
  - id: "node-p"
    alias: "n-p"
    token: "tok-p"
    providers:
      - id: "prov-p"
        type: "vllm"
        category: "api"
        endpoint: "http://127.0.0.1:8000/v1"
        models:
          - "model-a"
        capacity: 2
`
	if err := os.WriteFile(f, []byte(yaml), 0o600); err != nil {
		t.Fatalf("write yaml: %v", err)
	}
	cfg, err := config.LoadEdge(f)
	if err != nil {
		t.Fatalf("load: %v", err)
	}
	if len(cfg.Nodes) != 1 {
		t.Fatalf("expected 1 node, got %d", len(cfg.Nodes))
	}
	if len(cfg.Nodes[0].Providers) != 1 {
		t.Fatalf("expected 1 provider, got %d", len(cfg.Nodes[0].Providers))
	}
	if cfg.Nodes[0].Providers[0].Priority != 0 {
		t.Fatalf("expected default priority=0, got %d", cfg.Nodes[0].Providers[0].Priority)
	}
}

// TestLoadEdge_NodeProviderPriorityExplicitLoads verifies that an explicit
// priority value is loaded correctly.
func TestLoadEdge_NodeProviderPriorityExplicitLoads(t *testing.T) {
	dir := t.TempDir()
	f := filepath.Join(dir, "edge.yaml")
	yaml := `
server:
  listen: "0.0.0.0:9090"
nodes:
  - id: "node-p2"
    alias: "n-p2"
    token: "tok-p2"
    providers:
      - id: "prov-p2"
        type: "vllm"
        category: "api"
        endpoint: "http://127.0.0.1:8000/v1"
        models:
          - "model-a"
        capacity: 2
        priority: 5
`
	if err := os.WriteFile(f, []byte(yaml), 0o600); err != nil {
		t.Fatalf("write yaml: %v", err)
	}
	cfg, err := config.LoadEdge(f)
	if err != nil {
		t.Fatalf("load: %v", err)
	}
	if cfg.Nodes[0].Providers[0].Priority != 5 {
		t.Fatalf("expected priority=5, got %d", cfg.Nodes[0].Providers[0].Priority)
	}
}

// TestLoadEdge_NodeProviderNegativePriorityRejected verifies that a negative
// priority value is rejected during config load.
func TestLoadEdge_NodeProviderNegativePriorityRejected(t *testing.T) {
	dir := t.TempDir()
	f := filepath.Join(dir, "edge.yaml")
	yaml := `
server:
  listen: "0.0.0.0:9090"
nodes:
  - id: "node-p3"
    alias: "n-p3"
    token: "tok-p3"
    providers:
      - id: "prov-p3"
        type: "vllm"
        category: "api"
        endpoint: "http://127.0.0.1:8000/v1"
        models:
          - "model-a"
        capacity: 2
        priority: -1
`
	if err := os.WriteFile(f, []byte(yaml), 0o600); err != nil {
		t.Fatalf("write yaml: %v", err)
	}
	_, err := config.LoadEdge(f)
	if err == nil {
		t.Fatal("expected error for negative priority")
	}
	if !strings.Contains(err.Error(), "priority must be non-negative") {
		t.Fatalf("expected error mentioning priority non-negative, got %v", err)
	}
}

// TestLoadEdgeProviderLongContextCapacityValidation covers the provider-level
// long-context fields: a valid config loads the values, and the field-level
// invariants (non-negative, and total>0 when long_context_capacity>0) are enforced.
func TestLoadEdgeProviderLongContextCapacityValidation(t *testing.T) {
	validYAML := `
server:
  listen: "0.0.0.0:9090"
models:
  - id: "qwen3.6:35b"
    context_window_tokens: 262144
    providers:
      vllm-gpu: "nvidia/Qwen3.6-35B"
nodes:
  - id: "node-gpu-01"
    alias: "gpu-node"
    providers:
      - id: "vllm-gpu"
        type: "vllm"
        category: "api"
        models:
          - "nvidia/Qwen3.6-35B"
        capacity: 4
        total_context_tokens: 524288
        long_context_capacity: 2
`
	t.Run("valid", func(t *testing.T) {
		dir := t.TempDir()
		f := filepath.Join(dir, "edge.yaml")
		if err := os.WriteFile(f, []byte(validYAML), 0o600); err != nil {
			t.Fatalf("write yaml: %v", err)
		}
		cfg, err := config.LoadEdge(f)
		if err != nil {
			t.Fatalf("load: %v", err)
		}
		prov := cfg.Nodes[0].Providers[0]
		if prov.TotalContextTokens != 524288 {
			t.Errorf("total_context_tokens = %d, want 524288", prov.TotalContextTokens)
		}
		if prov.LongContextCapacity != 2 {
			t.Errorf("long_context_capacity = %d, want 2", prov.LongContextCapacity)
		}
	})

	cases := []struct {
		name    string
		total   string
		long    string
		wantMsg string
	}{
		{"negative total", "total_context_tokens: -1", "long_context_capacity: 0", "total_context_tokens must be non-negative"},
		{"negative long", "total_context_tokens: 524288", "long_context_capacity: -1", "long_context_capacity must be non-negative"},
		{"long without total", "total_context_tokens: 0", "long_context_capacity: 2", "total_context_tokens must be positive when long_context_capacity"},
	}
	for _, tc := range cases {
		t.Run(tc.name, func(t *testing.T) {
			dir := t.TempDir()
			f := filepath.Join(dir, "edge.yaml")
			yaml := fmt.Sprintf(`
server:
  listen: "0.0.0.0:9090"
nodes:
  - id: "node-gpu-01"
    alias: "gpu-node"
    providers:
      - id: "vllm-gpu"
        type: "vllm"
        category: "api"
        models:
          - "nvidia/Qwen3.6-35B"
        capacity: 4
        %s
        %s
`, tc.total, tc.long)
			if err := os.WriteFile(f, []byte(yaml), 0o600); err != nil {
				t.Fatalf("write yaml: %v", err)
			}
			_, err := config.LoadEdge(f)
			if err == nil {
				t.Fatalf("expected error for %s", tc.name)
			}
			if !strings.Contains(err.Error(), tc.wantMsg) {
				t.Fatalf("expected error mentioning %q, got %v", tc.wantMsg, err)
			}
		})
	}
}

// TestLoadEdgeRejectsProviderLongContextBudgetBelowModelWindow verifies the
// cross-entry budget rule: a provider referenced by a model group must have
// total_context_tokens >= context_window_tokens * long_context_capacity.
func TestLoadEdgeRejectsProviderLongContextBudgetBelowModelWindow(t *testing.T) {
	dir := t.TempDir()
	f := filepath.Join(dir, "edge.yaml")
	// 262144 * 2 = 524288 required, but total is only 262144.
	yaml := `
server:
  listen: "0.0.0.0:9090"
models:
  - id: "qwen3.6:35b"
    context_window_tokens: 262144
    providers:
      vllm-gpu: "nvidia/Qwen3.6-35B"
nodes:
  - id: "node-gpu-01"
    alias: "gpu-node"
    providers:
      - id: "vllm-gpu"
        type: "vllm"
        category: "api"
        models:
          - "nvidia/Qwen3.6-35B"
        capacity: 4
        total_context_tokens: 262144
        long_context_capacity: 2
`
	if err := os.WriteFile(f, []byte(yaml), 0o600); err != nil {
		t.Fatalf("write yaml: %v", err)
	}
	_, err := config.LoadEdge(f)
	if err == nil {
		t.Fatal("expected error for insufficient total context budget")
	}
	if !strings.Contains(err.Error(), "total_context_tokens") || !strings.Contains(err.Error(), "long_context_capacity") {
		t.Fatalf("expected budget error mentioning total_context_tokens and long_context_capacity, got %v", err)
	}
}

func TestLoadEdge_MockConfigExplicitEnabled(t *testing.T) {
	dir := t.TempDir()
	f := filepath.Join(dir, "edge.yaml")
	yaml := `
server:
  listen: "0.0.0.0:9090"
nodes:
  - alias: "test-node"
    token: "token-test"
    adapters:
      mock:
        enabled: true
`
	if err := os.WriteFile(f, []byte(yaml), 0o600); err != nil {
		t.Fatalf("write yaml: %v", err)
	}
	cfg, err := config.LoadEdge(f)
	if err != nil {
		t.Fatalf("load: %v", err)
	}
	if !cfg.Nodes[0].Adapters.Mock.Enabled {
		t.Fatal("expected mock.enabled=true")
	}
}

func TestLoadEdge_MockConfigOmittedDefaultsFalse(t *testing.T) {
	dir := t.TempDir()
	f := filepath.Join(dir, "edge.yaml")
	yaml := `
server:
  listen: "0.0.0.0:9090"
nodes:
  - alias: "test-node"
    token: "token-test"
    adapters:
      cli:
        enabled: true
        profiles:
          default:
            command: "echo"
`
	if err := os.WriteFile(f, []byte(yaml), 0o600); err != nil {
		t.Fatalf("write yaml: %v", err)
	}
	cfg, err := config.LoadEdge(f)
	if err != nil {
		t.Fatalf("load: %v", err)
	}
	if cfg.Nodes[0].Adapters.Mock.Enabled {
		t.Fatal("expected mock.enabled=false when omitted")
	}
}

func TestLoadEdge_MockConfigExplicitDisabled(t *testing.T) {
	dir := t.TempDir()
	f := filepath.Join(dir, "edge.yaml")
	yaml := `
server:
  listen: "0.0.0.0:9090"
nodes:
  - alias: "test-node"
    token: "token-test"
    adapters:
      mock:
        enabled: false
`
	if err := os.WriteFile(f, []byte(yaml), 0o600); err != nil {
		t.Fatalf("write yaml: %v", err)
	}
	cfg, err := config.LoadEdge(f)
	if err != nil {
		t.Fatalf("load: %v", err)
	}
	if cfg.Nodes[0].Adapters.Mock.Enabled {
		t.Fatal("expected mock.enabled=false when explicitly disabled")
	}
}