/**
 * 测试项目材料管理功能
 * 遵循设计方案：采购-付款-物流-退库一体化流程设计方案.md
 * 章节：九、项目材料管理
 * 
 * 测试内容：
 * 1. 项目材料库存查询
 * 2. 项目采购记录查询
 * 3. 项目退库记录查询
 * 4. 材料价格历史查询
 */

const sqlite3 = require('sqlite3').verbose();
const path = require('path');

const dbPath = path.join(__dirname, 'company_finance.db');
const db = new sqlite3.Database(dbPath, (err) => {
  if (err) {
    console.error('数据库连接失败:', err.message);
    process.exit(1);
  }
  console.log('SQLite数据库连接成功:', dbPath);
});

const runSQL = (sql, params = []) => {
  return new Promise((resolve, reject) => {
    db.run(sql, params, function(err) {
      if (err) {
        reject(err);
      } else {
        resolve({ lastID: this.lastID, changes: this.changes });
      }
    });
  });
};

const runAllSQL = (sql, params = []) => {
  return new Promise((resolve, reject) => {
    db.all(sql, params, (err, rows) => {
      if (err) {
        reject(err);
      } else {
        resolve(rows);
      }
    });
  });
};

async function test() {
  let passed = 0;
  let failed = 0;
  const errors = [];
  let testProjectId = null;
  let testOrderId = null;
  let testProductId = null;

  try {
    console.log('\n========================================');
    console.log('测试项目材料管理功能');
    console.log('========================================\n');

    console.log('--- 测试1：创建测试数据 ---\n');
    
    const projectCode = 'TEST-PRJ-' + Date.now();
    const projectResult = await runSQL(`
      INSERT INTO projects (code, name, status, created_at, updated_at)
      VALUES (?, '测试项目材料', 'active', datetime('now'), datetime('now'))
    `, [projectCode]);
    testProjectId = projectResult.lastID;
    console.log(`  ✅ 创建测试项目，ID: ${testProjectId}`);
    passed++;

    const orderCode = 'TEST-PO-' + Date.now();
    const orderResult = await runSQL(`
      INSERT INTO purchase_orders 
      (code, project_id, total_amount, currency, status, created_by, created_at, updated_at)
      VALUES (?, ?, 5000, 'CNY', 'confirmed', '测试人员', datetime('now'), datetime('now'))
    `, [orderCode, testProjectId]);
    testOrderId = orderResult.lastID;
    console.log(`  ✅ 创建测试订单，ID: ${testOrderId}`);
    passed++;

    const productResult = await runSQL(`
      INSERT INTO products (name, specification, unit, created_at, updated_at)
      VALUES ('测试材料A', '规格1', '个', datetime('now'), datetime('now'))
    `);
    testProductId = productResult.lastID;
    console.log(`  ✅ 创建测试商品，ID: ${testProductId}`);
    passed++;

    console.log('\n--- 测试2：项目材料库存 ---\n');
    
    const inventoryResult = await runSQL(`
      INSERT INTO project_material_inventory 
      (project_id, product_id, product_name, unit, purchased_quantity, received_quantity, 
       used_quantity, returned_quantity, current_quantity, total_amount, average_price, created_at, updated_at)
      VALUES (?, ?, '测试材料A', '个', 100, 100, 20, 5, 75, 3750, 50, datetime('now'), datetime('now'))
    `, [testProjectId, testProductId]);
    console.log(`  ✅ 创建材料库存记录，ID: ${inventoryResult.lastID}`);
    passed++;

    const inventory = await runAllSQL('SELECT * FROM project_material_inventory WHERE project_id = ?', [testProjectId]);
    if (inventory.length > 0) {
      const inv = inventory[0];
      console.log(`  ✅ 库存查询成功:`);
      console.log(`      采购数量: ${inv.purchased_quantity}`);
      console.log(`      收货数量: ${inv.received_quantity}`);
      console.log(`      已用数量: ${inv.used_quantity}`);
      console.log(`      退库数量: ${inv.returned_quantity}`);
      console.log(`      当前库存: ${inv.current_quantity}`);
      passed++;
    } else {
      console.log(`  ❌ 库存查询失败`);
      failed++;
    }

    console.log('\n--- 测试3：项目材料库存汇总 ---\n');
    
    const summary = await runAllSQL(`
      SELECT 
        COUNT(*) as item_count,
        SUM(purchased_quantity) as total_purchased,
        SUM(received_quantity) as total_received,
        SUM(used_quantity) as total_used,
        SUM(returned_quantity) as total_returned,
        SUM(current_quantity) as total_current,
        SUM(total_amount) as total_value
      FROM project_material_inventory
      WHERE project_id = ?
    `, [testProjectId]);
    
    if (summary.length > 0) {
      console.log(`  ✅ 库存汇总:`);
      console.log(`      材料种类: ${summary[0].item_count}`);
      console.log(`      总采购数量: ${summary[0].total_purchased}`);
      console.log(`      总当前库存: ${summary[0].total_current}`);
      console.log(`      总金额: ${summary[0].total_value}`);
      passed++;
    }

    console.log('\n--- 测试4：项目采购记录 ---\n');
    
    const purchases = await runAllSQL(`
      SELECT po.*, s.name as supplier_name
      FROM purchase_orders po
      LEFT JOIN suppliers s ON po.supplier_id = s.id
      WHERE po.project_id = ?
      ORDER BY po.created_at DESC
    `, [testProjectId]);
    
    if (purchases.length > 0) {
      console.log(`  ✅ 采购记录查询成功，共 ${purchases.length} 条记录`);
      console.log(`      订单号: ${purchases[0].code}`);
      console.log(`      状态: ${purchases[0].status}`);
      passed++;
    } else {
      console.log(`  ❌ 采购记录查询失败`);
      failed++;
    }

    console.log('\n--- 测试5：材料价格历史 ---\n');
    
    const priceHistoryResult = await runSQL(`
      INSERT INTO material_price_history 
      (product_id, purchase_order_id, supplier_id, unit_price, currency, quantity, purchase_date, created_at)
      VALUES (?, ?, NULL, 50, 'CNY', 100, date('now'), datetime('now'))
    `, [testProductId, testOrderId]);
    console.log(`  ✅ 创建价格历史记录，ID: ${priceHistoryResult.lastID}`);
    passed++;

    const priceHistory = await runAllSQL(`
      SELECT * FROM material_price_history WHERE product_id = ?
      ORDER BY purchase_date DESC
    `, [testProductId]);
    
    if (priceHistory.length > 0) {
      console.log(`  ✅ 价格历史查询成功，共 ${priceHistory.length} 条记录`);
      console.log(`      单价: ${priceHistory[0].unit_price} ${priceHistory[0].currency}`);
      console.log(`      数量: ${priceHistory[0].quantity}`);
      console.log(`      采购日期: ${priceHistory[0].purchase_date}`);
      passed++;
    } else {
      console.log(`  ❌ 价格历史查询失败`);
      failed++;
    }

    console.log('\n--- 测试6：材料平均价格 ---\n');
    
    const avgPrice = await runAllSQL(`
      SELECT 
        AVG(unit_price) as avg_price,
        MIN(unit_price) as min_price,
        MAX(unit_price) as max_price,
        COUNT(*) as purchase_count,
        SUM(quantity) as total_quantity
      FROM material_price_history
      WHERE product_id = ?
    `, [testProductId]);
    
    if (avgPrice.length > 0) {
      console.log(`  ✅ 平均价格统计:`);
      console.log(`      平均价格: ${avgPrice[0].avg_price}`);
      console.log(`      最低价格: ${avgPrice[0].min_price}`);
      console.log(`      最高价格: ${avgPrice[0].max_price}`);
      console.log(`      采购次数: ${avgPrice[0].purchase_count}`);
      passed++;
    }

    console.log('\n--- 测试7：验证库存计算逻辑 ---\n');
    console.log('  库存计算公式:');
    console.log('    当前库存 = 收货数量 - 已用数量 - 退库数量');
    console.log('    当前库存 = 100 - 20 - 5 = 75');
    
    const invCheck = await runAllSQL('SELECT * FROM project_material_inventory WHERE project_id = ?', [testProjectId]);
    if (invCheck[0].current_quantity === 75) {
      console.log(`  ✅ 库存计算正确: ${invCheck[0].current_quantity}`);
      passed++;
    } else {
      console.log(`  ❌ 库存计算错误: ${invCheck[0].current_quantity}`);
      failed++;
    }

    console.log('\n--- 清理测试数据 ---\n');
    await runSQL('DELETE FROM material_price_history WHERE product_id = ?', [testProductId]);
    await runSQL('DELETE FROM project_material_inventory WHERE project_id = ?', [testProjectId]);
    await runSQL('DELETE FROM purchase_orders WHERE id = ?', [testOrderId]);
    await runSQL('DELETE FROM products WHERE id = ?', [testProductId]);
    await runSQL('DELETE FROM projects WHERE id = ?', [testProjectId]);
    console.log('  测试数据已清理');

    console.log('\n========================================');
    console.log('测试结果汇总');
    console.log('========================================\n');
    console.log(`通过: ${passed}`);
    console.log(`失败: ${failed}`);
    
    if (errors.length > 0) {
      console.log('\n错误详情:');
      errors.forEach(err => console.log(`  - ${err}`));
    }

    console.log('\n========================================');
    if (failed === 0) {
      console.log('✅ 所有测试通过！项目材料管理功能符合设计方案。');
    } else {
      console.log('❌ 部分测试失败，请检查错误详情。');
    }
    console.log('========================================\n');

    db.close();
    process.exit(failed > 0 ? 1 : 0);
  } catch (error) {
    console.error('测试失败:', error);
    if (testProjectId) {
      try {
        await runSQL('DELETE FROM material_price_history WHERE product_id = ?', [testProductId]);
        await runSQL('DELETE FROM project_material_inventory WHERE project_id = ?', [testProjectId]);
        await runSQL('DELETE FROM purchase_orders WHERE id = ?', [testOrderId]);
        await runSQL('DELETE FROM products WHERE id = ?', [testProductId]);
        await runSQL('DELETE FROM projects WHERE id = ?', [testProjectId]);
      } catch (e) {}
    }
    db.close();
    process.exit(1);
  }
}

test();