const { getDBConnection } = require('./file-utils');

// 获取所有配置
function getConfigurations() {
  try {
    const db = getDBConnection(true);
    
    const configs = db.prepare(`
      SELECT * FROM Configuration
      ORDER BY ConfID ASC
    `).all();
    
    return configs;
  } catch (error) {
    console.error('获取配置列表失败:', error);
    throw error;
  }
}

// 根据ID获取配置
function getConfigurationById(confId) {
  try {
    const db = getDBConnection(true);
    
    const config = db.prepare(`
      SELECT * FROM Configuration
      WHERE ConfID = ?
    `).get(confId);
    
    return config;
  } catch (error) {
    console.error(`获取配置ID ${confId} 失败:`, error);
    throw error;
  }
}

// 创建新配置
function createConfiguration(configData) {
  try {
    // 验证必填字段
    const requiredFields = ['ConfName', 'WorkPath', 'DomainID'];
    for (const field of requiredFields) {
      if (!configData[field]) {
        throw new Error(`${field} 是必填字段`);
      }
    }

    const db = getDBConnection();
    
    const result = db.prepare(`
      INSERT INTO Configuration (
        PlaneName, ConfName, OSName, OSVersion, RTXVersion,
        CPUAffinity, WorkPath, ModelsPath, ServicesPath,
        DomainID, ConsoleDebug, ConsoleInfo, ConsoleWarning,
        ConsoleError, LogDebug, LogInfo, LogWarning, LogError
      ) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
    `).run(
      configData.PlaneName || 'C909',
      configData.ConfName,
      configData.OSName || 'Debian 11',
      configData.OSVersion || '5.10.0-32-rt-amd64',
      configData.RTXVersion || 'preempt-rt',
      configData.CPUAffinity || '0,1',
      configData.WorkPath,
      configData.ModelsPath || 'Models/',
      configData.ServicesPath || 'Services/',
      configData.DomainID,
      configData.ConsoleDebug !== undefined ? configData.ConsoleDebug : 1,
      configData.ConsoleInfo !== undefined ? configData.ConsoleInfo : 1,
      configData.ConsoleWarning !== undefined ? configData.ConsoleWarning : 1,
      configData.ConsoleError !== undefined ? configData.ConsoleError : 1,
      configData.LogDebug !== undefined ? configData.LogDebug : 0,
      configData.LogInfo !== undefined ? configData.LogInfo : 1,
      configData.LogWarning !== undefined ? configData.LogWarning : 1,
      configData.LogError !== undefined ? configData.LogError : 1
    );
    
    return {
      success: true,
      confId: result.lastInsertRowid,
      message: '配置创建成功'
    };
  } catch (error) {
    console.error('创建配置失败:', error);
    throw error;
  }
}

// 更新配置
function updateConfiguration(configData) {
  try {
    // 验证必填字段
    if (!configData.ConfID) {
      throw new Error('ConfID 是必填字段');
    }

    const db = getDBConnection();
    
    // 检查配置是否存在
    const existingConfig = db.prepare(`
      SELECT COUNT(*) as count FROM Configuration
      WHERE ConfID = ?
    `).get(configData.ConfID);
    
    if (existingConfig.count === 0) {
      throw new Error('要更新的配置不存在');
    }
    
    const result = db.prepare(`
      UPDATE Configuration
      SET PlaneName = ?,
          ConfName = ?,
          OSName = ?,
          OSVersion = ?,
          RTXVersion = ?,
          CPUAffinity = ?,
          WorkPath = ?,
          ModelsPath = ?,
          ServicesPath = ?,
          DomainID = ?,
          ConsoleDebug = ?,
          ConsoleInfo = ?,
          ConsoleWarning = ?,
          ConsoleError = ?,
          LogDebug = ?,
          LogInfo = ?,
          LogWarning = ?,
          LogError = ?
      WHERE ConfID = ?
    `).run(
      configData.PlaneName || 'C909',
      configData.ConfName,
      configData.OSName || 'Debian 11',
      configData.OSVersion || '5.10.0-32-rt-amd64',
      configData.RTXVersion || 'preempt-rt',
      configData.CPUAffinity || '0,1',
      configData.WorkPath,
      configData.ModelsPath || 'Models/',
      configData.ServicesPath || 'Services/',
      configData.DomainID,
      configData.ConsoleDebug !== undefined ? configData.ConsoleDebug : 1,
      configData.ConsoleInfo !== undefined ? configData.ConsoleInfo : 1,
      configData.ConsoleWarning !== undefined ? configData.ConsoleWarning : 1,
      configData.ConsoleError !== undefined ? configData.ConsoleError : 1,
      configData.LogDebug !== undefined ? configData.LogDebug : 0,
      configData.LogInfo !== undefined ? configData.LogInfo : 1,
      configData.LogWarning !== undefined ? configData.LogWarning : 1,
      configData.LogError !== undefined ? configData.LogError : 1,
      configData.ConfID
    );
    
    return {
      success: true,
      changes: result.changes,
      message: '配置更新成功'
    };
  } catch (error) {
    console.error('更新配置失败:', error);
    throw error;
  }
}

// 删除配置
function deleteConfiguration(confId) {
  try {
    const db = getDBConnection();
    
    const result = db.prepare('DELETE FROM Configuration WHERE ConfID = ?').run(confId);
    
    return {
      success: true,
      changes: result.changes,
      message: result.changes > 0 ? '配置删除成功' : '配置不存在或已被删除'
    };
  } catch (error) {
    console.error('删除配置失败:', error);
    throw error;
  }
}

module.exports = {
  getConfigurations,
  getConfigurationById,
  createConfiguration,
  updateConfiguration,
  deleteConfiguration
};