import 'dart:io';
import 'package:sqlite3/sqlite3.dart';
import '../lib/src/database/database_manager.dart';

/// Creates golden test databases with specific scenarios for testing
void main(List<String> args) {
  if (args.isEmpty) {
    print('Usage: dart create_golden_db.dart <scenario> [output_file]');
    print('');
    print('Available scenarios:');
    print('  high_achiever    - User with many achievements and high level');
    print('  new_user         - Fresh user with minimal data');
    print('  level_up_ready   - User close to leveling up');
    print('  achievement_rich - User with many recent achievements');
    print('  focus_master     - User with many focus sessions');
    print('');
    print('Examples:');
    print('  dart create_golden_db.dart high_achiever high_achiever_test.db');
    print('  dart create_golden_db.dart new_user new_user_test.db');
    exit(1);
  }

  final scenario = args[0];
  final outputFile = args.length > 1 ? args[1] : '${scenario}_test.db';

  // Remove existing file if it exists
  final file = File(outputFile);
  if (file.existsSync()) {
    file.deleteSync();
  }

  final db = sqlite3.open(outputFile);
  final dbManager = DatabaseManager(db);
  dbManager.initDatabase();

  switch (scenario) {
    case 'high_achiever':
      _createHighAchieverScenario(dbManager);
      break;
    case 'new_user':
      _createNewUserScenario(dbManager);
      break;
    case 'level_up_ready':
      _createLevelUpReadyScenario(dbManager);
      break;
    case 'achievement_rich':
      _createAchievementRichScenario(dbManager);
      break;
    case 'focus_master':
      _createFocusMasterScenario(dbManager);
      break;
    default:
      print('Unknown scenario: $scenario');
      db.dispose();
      exit(1);
  }

  db.dispose();
  print('✅ Golden test database created: $outputFile');
  print('📊 Scenario: $scenario');
}

void _createHighAchieverScenario(DatabaseManager dbManager) {
  print('🏆 Creating high achiever scenario...');
  
  final now = DateTime.now();
  final today = now.toIso8601String().substring(0, 10);
  final timestamp = now.millisecondsSinceEpoch;

  // High-level user with lots of XP
  dbManager.updateDailyStats(2500, 28800, 7200); // Level 8-9 range

  // Extensive activity history
  dbManager.saveActivityEvent('coding', 'vscode', '{"project": "major_project"}', timestamp - 3600000, 7200);
  dbManager.saveActivityEvent('coding', 'intellij', '{"project": "backend_service"}', timestamp - 7200000, 5400);
  dbManager.saveActivityEvent('focused_browsing', 'firefox', '{"url": "stackoverflow.com"}', timestamp - 10800000, 3600);
  dbManager.saveActivityEvent('collaboration', 'slack', '{"channel": "engineering"}', timestamp - 14400000, 1800);
  dbManager.saveActivityEvent('meetings', 'zoom', '{"meeting": "architecture-review"}', timestamp - 18000000, 3600);
  dbManager.saveActivityEvent('focused_browsing', 'chrome', '{"url": "docs.flutter.dev"}', timestamp - 21600000, 2400);

  // Many focus sessions
  for (int i = 0; i < 8; i++) {
    dbManager.saveFocusSession(today, 45 + (i % 3) * 15, 60 + (i % 4) * 15, timestamp - (i * 3600000));
  }

  // Multiple achievements
  dbManager.saveAchievement('First Steps', 'Complete your first activity', 25, timestamp - 604800000, 1);
  dbManager.saveAchievement('Code Warrior', 'Code for 8 hours in one day', 100, timestamp - 518400000, 3);
  dbManager.saveAchievement('Focus Master', 'Complete 5 focus sessions', 75, timestamp - 432000000, 4);
  dbManager.saveAchievement('Collaboration King', 'Spend 4 hours in meetings', 80, timestamp - 345600000, 5);
  dbManager.saveAchievement('Deep Thinker', 'Complete 10 focus sessions', 150, timestamp - 259200000, 6);
  dbManager.saveAchievement('Productivity Guru', 'Reach level 7', 200, timestamp - 172800000, 7);
  dbManager.saveAchievement('Elite Coder', 'Code for 50 hours total', 300, timestamp - 86400000, 8);

  // Application classifications
  dbManager.saveApplicationClassification('vscode', 'coding');
  dbManager.saveApplicationClassification('intellij', 'coding');
  dbManager.saveApplicationClassification('firefox', 'focused_browsing');
  dbManager.saveApplicationClassification('chrome', 'focused_browsing');
  dbManager.saveApplicationClassification('slack', 'collaboration');
  dbManager.saveApplicationClassification('zoom', 'meetings');
}

void _createNewUserScenario(DatabaseManager dbManager) {
  print('👶 Creating new user scenario...');
  
  final now = DateTime.now();
  final today = now.toIso8601String().substring(0, 10);
  final timestamp = now.millisecondsSinceEpoch;

  // Minimal stats - new user
  dbManager.updateDailyStats(50, 1800, 0); // Level 1, 50 XP, 30 min focus

  // Just a few activities
  dbManager.saveActivityEvent('coding', 'vscode', '{"project": "hello_world"}', timestamp - 1800000, 1800);
  dbManager.saveActivityEvent('focused_browsing', 'firefox', '{"url": "flutter.dev"}', timestamp - 3600000, 900);

  // One focus session
  dbManager.saveFocusSession(today, 25, 25, timestamp - 1800000);

  // First achievement only
  dbManager.saveAchievement('First Steps', 'Welcome to productivity tracking!', 25, timestamp - 1800000, 1);

  // Basic classifications
  dbManager.saveApplicationClassification('vscode', 'coding');
  dbManager.saveApplicationClassification('firefox', 'focused_browsing');

  // Some unclassified apps
  dbManager.trackUnclassifiedApplication('unknown_editor');
  dbManager.trackUnclassifiedApplication('random_app');
}

void _createLevelUpReadyScenario(DatabaseManager dbManager) {
  print('🚀 Creating level up ready scenario...');
  
  final now = DateTime.now();
  final today = now.toIso8601String().substring(0, 10);
  final timestamp = now.millisecondsSinceEpoch;

  // Just below level 5 threshold (typically around 800-900 XP)
  dbManager.updateDailyStats(850, 14400, 3600); // Close to level 5

  // Good amount of activities
  dbManager.saveActivityEvent('coding', 'vscode', '{"project": "important_feature"}', timestamp - 3600000, 5400);
  dbManager.saveActivityEvent('focused_browsing', 'firefox', '{"url": "documentation"}', timestamp - 7200000, 2700);
  dbManager.saveActivityEvent('collaboration', 'slack', '{"channel": "team"}', timestamp - 10800000, 1800);
  dbManager.saveActivityEvent('meetings', 'zoom', '{"meeting": "planning"}', timestamp - 14400000, 1800);

  // Several focus sessions
  dbManager.saveFocusSession(today, 45, 50, timestamp - 3600000);
  dbManager.saveFocusSession(today, 30, 35, timestamp - 7200000);
  dbManager.saveFocusSession(today, 60, 75, timestamp - 10800000);
  dbManager.saveFocusSession(today, 25, 30, timestamp - 14400000);

  // Progressive achievements
  dbManager.saveAchievement('First Steps', 'Started tracking', 25, timestamp - 345600000, 1);
  dbManager.saveAchievement('Getting Started', 'First hour of focus', 50, timestamp - 259200000, 2);
  dbManager.saveAchievement('Building Momentum', 'Consistent daily activity', 75, timestamp - 172800000, 3);
  dbManager.saveAchievement('Focused Worker', 'Multiple focus sessions', 100, timestamp - 86400000, 4);

  // Classifications
  dbManager.saveApplicationClassification('vscode', 'coding');
  dbManager.saveApplicationClassification('firefox', 'focused_browsing');
  dbManager.saveApplicationClassification('slack', 'collaboration');
  dbManager.saveApplicationClassification('zoom', 'meetings');
}

void _createAchievementRichScenario(DatabaseManager dbManager) {
  print('🏅 Creating achievement rich scenario...');
  
  final now = DateTime.now();
  final today = now.toIso8601String().substring(0, 10);
  final timestamp = now.millisecondsSinceEpoch;

  // Moderate stats
  dbManager.updateDailyStats(1200, 18000, 5400);

  // Standard activities
  dbManager.saveActivityEvent('coding', 'vscode', '{"project": "achievement_test"}', timestamp - 3600000, 3600);
  dbManager.saveActivityEvent('focused_browsing', 'firefox', '{"url": "research"}', timestamp - 7200000, 1800);
  dbManager.saveActivityEvent('collaboration', 'slack', '{"channel": "general"}', timestamp - 10800000, 900);

  // Focus sessions
  dbManager.saveFocusSession(today, 45, 50, timestamp - 3600000);
  dbManager.saveFocusSession(today, 30, 35, timestamp - 7200000);

  // Many recent achievements (great for testing achievement notifications)
  final achievementTimestamps = [
    timestamp - 300000,   // 5 minutes ago
    timestamp - 600000,   // 10 minutes ago
    timestamp - 1800000,  // 30 minutes ago
    timestamp - 3600000,  // 1 hour ago
    timestamp - 7200000,  // 2 hours ago
  ];

  dbManager.saveAchievement('Speed Demon', 'Complete task in under 5 minutes', 50, achievementTimestamps[0], 5);
  dbManager.saveAchievement('Consistency King', 'Work for 7 days straight', 100, achievementTimestamps[1], 5);
  dbManager.saveAchievement('Focus Champion', 'Complete 3 focus sessions today', 75, achievementTimestamps[2], 5);
  dbManager.saveAchievement('Code Master', 'Write code for 6 hours', 125, achievementTimestamps[3], 5);
  dbManager.saveAchievement('Collaboration Expert', 'Participate in 5 meetings', 80, achievementTimestamps[4], 5);

  // Earlier achievements
  dbManager.saveAchievement('First Steps', 'Welcome!', 25, timestamp - 604800000, 1);
  dbManager.saveAchievement('Getting Going', 'First week complete', 50, timestamp - 518400000, 2);
  dbManager.saveAchievement('Momentum Builder', 'Consistent activity', 75, timestamp - 432000000, 3);
  dbManager.saveAchievement('Steady Progress', 'Level 4 reached', 100, timestamp - 345600000, 4);

  // Classifications
  dbManager.saveApplicationClassification('vscode', 'coding');
  dbManager.saveApplicationClassification('firefox', 'focused_browsing');
  dbManager.saveApplicationClassification('slack', 'collaboration');
}

void _createFocusMasterScenario(DatabaseManager dbManager) {
  print('🧘 Creating focus master scenario...');
  
  final now = DateTime.now();
  final today = now.toIso8601String().substring(0, 10);
  final timestamp = now.millisecondsSinceEpoch;

  // High focus time stats
  dbManager.updateDailyStats(1800, 32400, 1800); // 9 hours of focus time!

  // Focus-heavy activities
  dbManager.saveActivityEvent('coding', 'vscode', '{"project": "deep_work_project"}', timestamp - 3600000, 10800);
  dbManager.saveActivityEvent('focused_browsing', 'firefox', '{"url": "research_paper"}', timestamp - 14400000, 7200);
  dbManager.saveActivityEvent('coding', 'vim', '{"project": "algorithm_implementation"}', timestamp - 21600000, 5400);
  dbManager.saveActivityEvent('focused_browsing', 'chrome', '{"url": "documentation"}', timestamp - 28800000, 3600);

  // Many focus sessions of varying lengths
  final sessionData = [
    [90, 120], [60, 80], [45, 60], [120, 150], [30, 40],
    [75, 95], [50, 65], [105, 130], [25, 35], [80, 100],
    [40, 50], [95, 115], [35, 45], [110, 140], [55, 70]
  ];

  for (int i = 0; i < sessionData.length; i++) {
    final duration = sessionData[i][0];
    final bonusXp = sessionData[i][1];
    dbManager.saveFocusSession(today, duration, bonusXp, timestamp - (i * 1800000));
  }

  // Focus-related achievements
  dbManager.saveAchievement('First Focus', 'Complete first focus session', 25, timestamp - 1209600000, 1);
  dbManager.saveAchievement('Focus Streak', 'Complete 5 focus sessions', 75, timestamp - 1036800000, 2);
  dbManager.saveAchievement('Deep Work', 'Complete 90-minute focus session', 100, timestamp - 864000000, 3);
  dbManager.saveAchievement('Focus Marathon', 'Complete 10 focus sessions in one day', 150, timestamp - 691200000, 4);
  dbManager.saveAchievement('Concentration Master', 'Complete 2-hour focus session', 200, timestamp - 518400000, 5);
  dbManager.saveAchievement('Focus Guru', 'Complete 50 total focus sessions', 300, timestamp - 345600000, 6);
  dbManager.saveAchievement('Zen Master', 'Complete 8 hours of focus in one day', 400, timestamp - 172800000, 7);

  // Classifications
  dbManager.saveApplicationClassification('vscode', 'coding');
  dbManager.saveApplicationClassification('vim', 'coding');
  dbManager.saveApplicationClassification('firefox', 'focused_browsing');
  dbManager.saveApplicationClassification('chrome', 'focused_browsing');
}