package config

import "testing"

func TestLoadA2AEdgeURLPrefersEdgeURL(t *testing.T) {
	t.Setenv("A2A_EDGE_URL", "http://edge.example/a2a")
	t.Setenv("A2A_AGENT_URL", "http://legacy.example/a2a")

	cfg := Load()

	if cfg.A2AEdgeURL != "http://edge.example/a2a" {
		t.Fatalf("A2AEdgeURL: got %q", cfg.A2AEdgeURL)
	}
	if cfg.A2AAgentURL != "http://legacy.example/a2a" {
		t.Fatalf("A2AAgentURL: got %q", cfg.A2AAgentURL)
	}
}

func TestLoadA2AEdgeURLFallsBackToLegacyAgentURL(t *testing.T) {
	t.Setenv("A2A_AGENT_URL", "http://legacy.example/a2a")

	cfg := Load()

	if cfg.A2AEdgeURL != "http://legacy.example/a2a" {
		t.Fatalf("A2AEdgeURL fallback: got %q", cfg.A2AEdgeURL)
	}
	if cfg.A2AAgentURL != "http://legacy.example/a2a" {
		t.Fatalf("A2AAgentURL: got %q", cfg.A2AAgentURL)
	}
}

func TestLoadModelAndA2ADefaults(t *testing.T) {
	cfg := Load()

	if cfg.ModelBaseURL != "http://192.168.0.91:11434" {
		t.Fatalf("ModelBaseURL: got %q", cfg.ModelBaseURL)
	}
	if cfg.ModelAPIKey != "ollama" {
		t.Fatalf("ModelAPIKey: got %q", cfg.ModelAPIKey)
	}
	if cfg.ModelName != "qwen3.6:35b-a3b-bf16" {
		t.Fatalf("ModelName: got %q", cfg.ModelName)
	}
	if cfg.ModelContextSize != 262144 {
		t.Fatalf("ModelContextSize: got %d", cfg.ModelContextSize)
	}
	if cfg.ModelTimeoutSec != 300 {
		t.Fatalf("ModelTimeoutSec: got %d", cfg.ModelTimeoutSec)
	}
	if cfg.A2ATimeoutSec != 300 {
		t.Fatalf("A2ATimeoutSec: got %d", cfg.A2ATimeoutSec)
	}
}

func TestConfigLoadsWorkflowTaskTimeout(t *testing.T) {
	cfg := Load()
	if cfg.WorkflowTaskTimeoutSec != 300 {
		t.Fatalf("WorkflowTaskTimeoutSec default: got %d, want 300", cfg.WorkflowTaskTimeoutSec)
	}

	t.Setenv("WORKFLOW_TASK_TIMEOUT_SEC", "120")
	cfgOverride := Load()
	if cfgOverride.WorkflowTaskTimeoutSec != 120 {
		t.Fatalf("WorkflowTaskTimeoutSec override: got %d, want 120", cfgOverride.WorkflowTaskTimeoutSec)
	}
}

func TestConfigLoadsProtoSocketDefaultsAndOverrides(t *testing.T) {
	cfg := Load()
	if cfg.ProtoSocketPath != "/proto-socket" {
		t.Fatalf("ProtoSocketPath default: got %q, want %q", cfg.ProtoSocketPath, "/proto-socket")
	}
	if cfg.ProtoSocketHeartbeatIntervalSec != 30 {
		t.Fatalf("ProtoSocketHeartbeatIntervalSec default: got %d, want 30", cfg.ProtoSocketHeartbeatIntervalSec)
	}
	if cfg.ProtoSocketHeartbeatWaitSec != 10 {
		t.Fatalf("ProtoSocketHeartbeatWaitSec default: got %d, want 10", cfg.ProtoSocketHeartbeatWaitSec)
	}

	t.Setenv("PROTO_SOCKET_PATH", "/custom-path")
	t.Setenv("PROTO_SOCKET_HEARTBEAT_INTERVAL_SEC", "15")
	t.Setenv("PROTO_SOCKET_HEARTBEAT_WAIT_SEC", "5")

	cfgOverride := Load()
	if cfgOverride.ProtoSocketPath != "/custom-path" {
		t.Fatalf("ProtoSocketPath override: got %q, want %q", cfgOverride.ProtoSocketPath, "/custom-path")
	}
	if cfgOverride.ProtoSocketHeartbeatIntervalSec != 15 {
		t.Fatalf("ProtoSocketHeartbeatIntervalSec override: got %d, want 15", cfgOverride.ProtoSocketHeartbeatIntervalSec)
	}
	if cfgOverride.ProtoSocketHeartbeatWaitSec != 5 {
		t.Fatalf("ProtoSocketHeartbeatWaitSec override: got %d, want 5", cfgOverride.ProtoSocketHeartbeatWaitSec)
	}
}

func TestConfigLoadsJiraEnvVars(t *testing.T) {
	t.Setenv("JIRA_BASE_URL", "https://jira.example.com")
	t.Setenv("JIRA_EMAIL", "user@example.com")
	t.Setenv("JIRA_API_TOKEN", "api-token-123")

	cfg := Load()

	if cfg.JiraBaseURL != "https://jira.example.com" {
		t.Fatalf("JiraBaseURL: got %q", cfg.JiraBaseURL)
	}
	if cfg.JiraEmail != "user@example.com" {
		t.Fatalf("JiraEmail: got %q", cfg.JiraEmail)
	}
	if cfg.JiraAPIToken != "api-token-123" {
		t.Fatalf("JiraAPIToken: got %q", cfg.JiraAPIToken)
	}
}

func TestConfigLoadsMattermostEnvVars(t *testing.T) {
	t.Setenv("MATTERMOST_BASE_URL", "https://mattermost.example.com")
	t.Setenv("MATTERMOST_TOKEN", "mattermost-token")
	t.Setenv("MATTERMOST_CHANNEL_ID", "channel-id")

	cfg := Load()

	if cfg.MattermostBaseURL != "https://mattermost.example.com" {
		t.Fatalf("MattermostBaseURL: got %q", cfg.MattermostBaseURL)
	}
	if cfg.MattermostToken != "mattermost-token" {
		t.Fatalf("MattermostToken: got %q", cfg.MattermostToken)
	}
	if cfg.MattermostChannelID != "channel-id" {
		t.Fatalf("MattermostChannelID: got %q", cfg.MattermostChannelID)
	}
}

func TestConfigMattermostFieldsAreEmptyByDefault(t *testing.T) {
	cfg := Load()

	if cfg.MattermostBaseURL != "" {
		t.Fatalf("MattermostBaseURL default: got %q, want empty", cfg.MattermostBaseURL)
	}
	if cfg.MattermostToken != "" {
		t.Fatalf("MattermostToken default: got %q, want empty", cfg.MattermostToken)
	}
	if cfg.MattermostChannelID != "" {
		t.Fatalf("MattermostChannelID default: got %q, want empty", cfg.MattermostChannelID)
	}
}

func TestConfigJiraFieldsAreEmptyByDefault(t *testing.T) {
	cfg := Load()

	if cfg.JiraBaseURL != "" {
		t.Fatalf("JiraBaseURL default: got %q, want empty", cfg.JiraBaseURL)
	}
	if cfg.JiraEmail != "" {
		t.Fatalf("JiraEmail default: got %q, want empty", cfg.JiraEmail)
	}
	if cfg.JiraAPIToken != "" {
		t.Fatalf("JiraAPIToken default: got %q, want empty", cfg.JiraAPIToken)
	}
}