import 'dart:io';

import 'package:oto/oto/commands/command.dart';
import 'package:oto/oto/commands/command_registry.dart';
import 'package:test/test.dart';

void main() {
  setUpAll(() {
    registerAllCommands();
  });

  test('all command types are registered', () {
    final registered = Command.registeredTypes.toSet();
    final missing =
        CommandType.values.where((t) => !registered.contains(t)).toList();
    expect(
      missing,
      isEmpty,
      reason:
          'CommandType values without a Command.register() call: $missing. '
          'Add registration in the relevant register*() function and call it from registerAllCommands().',
    );
  });

  test('all registered commands expose specs', () {
    final specs = Command.specs;
    final missing = Command.registeredTypes
        .where((t) => !specs.containsKey(t))
        .toList();
    expect(
      missing,
      isEmpty,
      reason:
          'Registered commands without a CommandSpec: $missing. '
          'Pass spec: CommandSpec(...) to Command.register().',
    );
  });

  test('spec sample paths exist when provided', () {
    final missing = <String>[];
    for (final entry in Command.specs.entries) {
      final sample = entry.value.samplePath;
      if (sample == null) continue;
      if (!File(sample).existsSync()) {
        missing.add('${entry.key} -> $sample');
      }
    }
    expect(
      missing,
      isEmpty,
      reason:
          'CommandSpec.samplePath must point to an existing file. '
          'Missing: $missing',
    );
  });

  test('spec sample paths contain the registered command', () {
    final mismatches = <String>[];
    for (final entry in Command.specs.entries) {
      final sample = entry.value.samplePath;
      if (sample == null) continue;
      final file = File(sample);
      if (!file.existsSync()) continue;
      final commandName = entry.key.name;
      final pattern =
          RegExp(r'^\s*-\s*command:\s*' + RegExp.escape(commandName) + r'\s*$');
      final hasCommand = file.readAsLinesSync().any((line) {
        final trimmed = line.trimLeft();
        if (trimmed.startsWith('#')) return false;
        return pattern.hasMatch(line);
      });
      if (!hasCommand) {
        mismatches.add('${entry.key} -> $sample');
      }
    }
    expect(
      mismatches,
      isEmpty,
      reason:
          'CommandSpec.samplePath must reference a sample that actually '
          'includes a non-commented `- command: <Type>` line. Mismatches: '
          '$mismatches',
    );
  });

  test('spec category and dataModel are non-empty', () {
    final bad = <String>[];
    for (final entry in Command.specs.entries) {
      final spec = entry.value;
      if (spec.category.isEmpty || spec.dataModel.isEmpty) {
        bad.add('${entry.key}');
      }
    }
    expect(bad, isEmpty,
        reason: 'CommandSpec.category and dataModel must be non-empty: $bad');
  });
}