#!/usr/bin/env node

// =====================================================
// 填充示例數據腳本
// =====================================================

const mysql = require('mysql2/promise');
const { v4: uuidv4 } = require('uuid');

// 資料庫配置
const dbConfig = {
  host: process.env.DB_HOST || 'mysql.theaken.com',
  port: parseInt(process.env.DB_PORT || '33306'),
  user: process.env.DB_USER || 'AI_Platform',
  password: process.env.DB_PASSWORD || 'Aa123456',
  database: process.env.DB_NAME || 'db_AI_Platform',
  charset: 'utf8mb4',
  timezone: '+08:00',
};

async function populateSampleData() {
  let connection;
  
  try {
    console.log('🚀 開始填充示例數據...');
    
    // 創建連接
    connection = await mysql.createConnection(dbConfig);
    console.log('✅ 資料庫連接成功');
    
    // 1. 創建示例用戶
    console.log('👥 創建示例用戶...');
    const users = [
      {
        id: uuidv4(),
        name: '張小明',
        email: 'zhang.xiaoming@company.com',
        password_hash: '$2b$10$example.hash.here', // 示例哈希
        department: 'HQBU',
        role: 'developer',
        join_date: '2024-01-15',
        total_likes: 25,
        total_views: 150,
        is_active: true
      },
      {
        id: uuidv4(),
        name: '李美華',
        email: 'li.meihua@company.com',
        password_hash: '$2b$10$example.hash.here',
        department: 'ITBU',
        role: 'developer',
        join_date: '2024-02-01',
        total_likes: 18,
        total_views: 120,
        is_active: true
      },
      {
        id: uuidv4(),
        name: '王大偉',
        email: 'wang.dawei@company.com',
        password_hash: '$2b$10$example.hash.here',
        department: 'MBU1',
        role: 'developer',
        join_date: '2024-01-20',
        total_likes: 32,
        total_views: 200,
        is_active: true
      },
      {
        id: uuidv4(),
        name: '陳小芳',
        email: 'chen.xiaofang@company.com',
        password_hash: '$2b$10$example.hash.here',
        department: 'SBU',
        role: 'developer',
        join_date: '2024-02-10',
        total_likes: 15,
        total_views: 90,
        is_active: true
      },
      {
        id: uuidv4(),
        name: '劉志強',
        email: 'liu.zhiqiang@company.com',
        password_hash: '$2b$10$example.hash.here',
        department: 'HQBU',
        role: 'admin',
        join_date: '2023-12-01',
        total_likes: 5,
        total_views: 50,
        is_active: true
      }
    ];
    
    for (const user of users) {
      await connection.execute(
        `INSERT INTO users (id, name, email, password_hash, department, role, join_date, total_likes, total_views, status, created_at, updated_at) 
         VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, NOW(), NOW())`,
        [user.id, user.name, user.email, user.password_hash, user.department, user.role, user.join_date, user.total_likes, user.total_views, 'active']
      );
    }
    console.log(`✅ 創建了 ${users.length} 個用戶`);
    
    // 2. 創建示例評審
    console.log('👨‍⚖️ 創建示例評審...');
    const judges = [
      {
        id: uuidv4(),
        name: '王教授',
        title: '技術總監',
        department: 'ITBU',
        expertise: JSON.stringify(['AI', '機器學習', '深度學習']),
        is_active: true
      },
      {
        id: uuidv4(),
        name: '李博士',
        title: '產品經理',
        department: 'HQBU',
        expertise: JSON.stringify(['產品設計', '用戶體驗', '商業分析']),
        is_active: true
      },
      {
        id: uuidv4(),
        name: '陳工程師',
        title: '資深工程師',
        department: 'MBU1',
        expertise: JSON.stringify(['軟體開發', '系統架構', '資料庫']),
        is_active: true
      }
    ];
    
    for (const judge of judges) {
      await connection.execute(
        `INSERT INTO judges (id, name, title, department, expertise, is_active, created_at, updated_at) 
         VALUES (?, ?, ?, ?, ?, ?, NOW(), NOW())`,
        [judge.id, judge.name, judge.title, judge.department, judge.expertise, judge.is_active]
      );
    }
    console.log(`✅ 創建了 ${judges.length} 個評審`);
    
    // 3. 創建示例競賽
    console.log('🏆 創建示例競賽...');
    const competitions = [
      {
        id: uuidv4(),
        name: '2024年AI創新競賽',
        description: '展示最新的AI技術創新成果',
        type: 'individual',
        year: 2024,
        month: 3,
        start_date: '2024-03-01',
        end_date: '2024-03-31',
        status: 'active',
        is_current: true,
        is_active: true,
        evaluation_focus: JSON.stringify(['創新性', '技術性', '實用性']),
        max_team_size: 5
      },
      {
        id: uuidv4(),
        name: '2024年團隊協作競賽',
        description: '團隊協作開發的AI應用',
        type: 'team',
        year: 2024,
        month: 4,
        start_date: '2024-04-01',
        end_date: '2024-04-30',
        status: 'upcoming',
        is_current: false,
        is_active: true,
        evaluation_focus: JSON.stringify(['團隊協作', '技術實現', '創新應用']),
        max_team_size: 8
      }
    ];
    
    for (const competition of competitions) {
      await connection.execute(
        `INSERT INTO competitions (id, name, description, type, year, month, start_date, end_date, status, is_current, is_active, evaluation_focus, max_team_size, created_at, updated_at) 
         VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, NOW(), NOW())`,
        [competition.id, competition.name, competition.description, competition.type, competition.year, competition.month, 
         competition.start_date, competition.end_date, competition.status, competition.is_current, competition.is_active, 
         competition.evaluation_focus, competition.max_team_size]
      );
    }
    console.log(`✅ 創建了 ${competitions.length} 個競賽`);
    
    // 4. 創建示例應用
    console.log('📱 創建示例應用...');
    const apps = [
      {
        id: uuidv4(),
        name: '智能對話助手',
        description: '基於大語言模型的智能對話系統',
        creator_id: users[0].id,
        team_id: null,
        category: '文字處理',
        technology_stack: JSON.stringify(['Python', 'OpenAI API', 'React']),
        github_url: 'https://github.com/example/chatbot',
        demo_url: 'https://demo.example.com/chatbot',
        status: 'published',
        is_active: true,
        total_likes: 25,
        total_views: 150
      },
      {
        id: uuidv4(),
        name: '圖像生成工具',
        description: 'AI驅動的創意圖像生成平台',
        creator_id: users[1].id,
        team_id: null,
        category: '圖像生成',
        technology_stack: JSON.stringify(['Python', 'Stable Diffusion', 'FastAPI']),
        github_url: 'https://github.com/example/image-gen',
        demo_url: 'https://demo.example.com/image-gen',
        status: 'published',
        is_active: true,
        total_likes: 18,
        total_views: 120
      },
      {
        id: uuidv4(),
        name: '語音識別系統',
        description: '高精度多語言語音識別服務',
        creator_id: users[2].id,
        team_id: null,
        category: '語音辨識',
        technology_stack: JSON.stringify(['Python', 'Whisper', 'Docker']),
        github_url: 'https://github.com/example/speech-recognition',
        demo_url: 'https://demo.example.com/speech',
        status: 'published',
        is_active: true,
        total_likes: 32,
        total_views: 200
      }
    ];
    
    for (const app of apps) {
      await connection.execute(
        `INSERT INTO apps (id, name, description, creator_id, team_id, category, type, app_url, likes_count, views_count, is_active, created_at, updated_at) 
         VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, NOW(), NOW())`,
        [app.id, app.name, app.description, app.creator_id, app.team_id, app.category, 'web', app.demo_url, app.total_likes, app.total_views, 1]
      );
    }
    console.log(`✅ 創建了 ${apps.length} 個應用`);
    
    // 5. 關聯競賽和應用
    console.log('🔗 關聯競賽和應用...');
    const currentCompetition = competitions[0]; // 當前競賽
    for (const app of apps) {
      await connection.execute(
        `INSERT INTO competition_apps (id, competition_id, app_id, submitted_at) VALUES (?, ?, ?, NOW())`,
        [uuidv4(), currentCompetition.id, app.id]
      );
    }
    console.log(`✅ 關聯了 ${apps.length} 個應用到當前競賽`);
    
    // 6. 關聯競賽和評審
    console.log('🔗 關聯競賽和評審...');
    for (const judge of judges) {
      await connection.execute(
        `INSERT INTO competition_judges (id, competition_id, judge_id, assigned_at) VALUES (?, ?, ?, NOW())`,
        [uuidv4(), currentCompetition.id, judge.id]
      );
    }
    console.log(`✅ 關聯了 ${judges.length} 個評審到當前競賽`);
    
    // 7. 創建示例評分
    console.log('📊 創建示例評分...');
    for (const app of apps) {
      for (const judge of judges) {
        const scores = {
          innovation_score: Math.floor(Math.random() * 5) + 1,
          technical_score: Math.floor(Math.random() * 5) + 1,
          usability_score: Math.floor(Math.random() * 5) + 1,
          presentation_score: Math.floor(Math.random() * 5) + 1,
          impact_score: Math.floor(Math.random() * 5) + 1
        };
        
        const totalScore = (scores.innovation_score + scores.technical_score + scores.usability_score + 
                          scores.presentation_score + scores.impact_score) / 5;
        
        await connection.execute(
          `INSERT INTO app_judge_scores (id, judge_id, app_id, innovation_score, technical_score, usability_score, presentation_score, impact_score, total_score, comments, submitted_at) 
           VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, NOW())`,
          [uuidv4(), judge.id, app.id, scores.innovation_score, scores.technical_score, scores.usability_score, 
           scores.presentation_score, scores.impact_score, totalScore, '示例評分']
        );
      }
    }
    console.log(`✅ 創建了 ${apps.length * judges.length} 個評分記錄`);
    
    console.log('🎉 示例數據填充完成！');
    console.log('\n📊 數據摘要:');
    console.log(`- 用戶: ${users.length} 個`);
    console.log(`- 評審: ${judges.length} 個`);
    console.log(`- 競賽: ${competitions.length} 個 (其中 1 個為當前競賽)`);
    console.log(`- 應用: ${apps.length} 個`);
    console.log(`- 評分記錄: ${apps.length * judges.length} 個`);
    
  } catch (error) {
    console.error('❌ 填充失敗:', error.message);
    console.error('詳細錯誤:', error);
    process.exit(1);
  } finally {
    if (connection) {
      await connection.end();
      console.log('🔌 資料庫連接已關閉');
    }
  }
}

// 執行填充
if (require.main === module) {
  populateSampleData().catch(console.error);
}

module.exports = { populateSampleData };