import { Controller, Get, Post, Inject, Query, Body, Put, Del, Param } from '@midwayjs/core';
import { successResponse, errorResponse, ApiResponse } from '../utils/response.util';
import { CustomerService } from '../service/customer.service';
import { CustomerQueryParamsDTO, CreateCustomerDTO, UpdateCustomerDTO, GetCustomerDTO, BatchCreateCustomerDTO, BatchUpdateCustomerDTO, BatchDeleteCustomerDTO, SyncCustomersDTO } from '../dto/customer.dto';
import { ApiProperty } from '@midwayjs/swagger';
import { ApiOkResponse } from '@midwayjs/swagger';
import { UnifiedPaginationDTO } from '../dto/api.dto';

export class CustomerTagDTO {
  @ApiProperty({ description: '客户邮箱' })
  email: string;

  @ApiProperty({ description: '标签名称' })
  tag: string;
}

@Controller('/customer')
export class CustomerController {
  @Inject()
  customerService: CustomerService;

  @ApiOkResponse({ type: ApiResponse<UnifiedPaginationDTO<GetCustomerDTO>> })
  @Get('/list')
  async getCustomerList(@Query() query: CustomerQueryParamsDTO) {
    try {
      const result = await this.customerService.getCustomerList(query)
      return successResponse(result);
    } catch (error) {
      return errorResponse(error.message);
    }
  }

  @ApiOkResponse({ type: Object })
  @Get('/statistic/list')
  async getCustomerStatisticList(@Query() query: CustomerQueryParamsDTO) {
    try {
      const result = await this.customerService.getCustomerStatisticList(query as any);
      return successResponse(result);
    } catch (error) {
      return errorResponse(error.message);
    }
  }

  @ApiOkResponse({ type: Object })
  @Post('/addtag')
  async addTag(@Body() body: CustomerTagDTO) {
    try {
      const result = await this.customerService.addTag(body.email, body.tag);
      return successResponse(result);
    } catch (error) {
      return errorResponse(error.message);
    }
  }

  @ApiOkResponse({ type: Object })
  @Post('/deltag')
  async delTag(@Body() body: CustomerTagDTO) {
    try {
      const result = await this.customerService.delTag(body.email, body.tag);
      return successResponse(result);
    } catch (error) {
      return errorResponse(error.message);
    }
  }

  @ApiOkResponse({ type: Object })
  @Get('/gettags')
  async getTags() {
    try {
      const result = await this.customerService.getTags();
      return successResponse(result);
    } catch (error) {
      return errorResponse(error.message);
    }
  }

  @ApiOkResponse({ type: Object })
  @Post('/setrate')
  async setRate(@Body() body: { id: number; rate: number }) {
    try {
      const result = await this.customerService.setRate({ id: body.id, rate: body.rate });
      return successResponse(result);
    } catch (error) {
      return errorResponse(error.message);
    }
  }

  /**
   * 同步客户数据
   * 从指定站点获取客户数据并保存到本地数据库
   * 支持通过where和orderBy参数筛选和排序要同步的客户数据
   */
  @ApiOkResponse({ type: Object })
  @Post('/sync')
  async syncCustomers(@Body() body: SyncCustomersDTO) {
    try {
      const { siteId, params = {} } = body;
      
      // 调用service层的同步方法，所有业务逻辑都在service中处理
      const syncResult = await this.customerService.syncCustomersFromSite(siteId, params);
      
      return successResponse(syncResult);
    } catch (error) {
      return errorResponse(error.message);
    }
  }

  // ====================== 单个客户CRUD操作 ======================

  /**
   * 创建单个客户
   * 使用CreateCustomerDTO进行数据验证
   */
  @ApiOkResponse({ type: GetCustomerDTO })
  @Post('/')
  async createCustomer(@Body() body: CreateCustomerDTO) {
    try {
      // 调用service层的upsertCustomer方法
      const result = await this.customerService.upsertCustomer({...body, origin_id: String(body.origin_id)});
      return successResponse(result.customer);
    } catch (error) {
      return errorResponse(error.message);
    }
  }

  /**
   * 根据ID获取单个客户
   * 返回GetCustomerDTO格式的客户信息
   */
  @ApiOkResponse({ type: GetCustomerDTO })
  @Get('/:id')
  async getCustomerById(@Param('id') id: number) {
    try {
      const customer = await this.customerService.customerModel.findOne({ where: { id } });
      if (!customer) {
        return errorResponse('客户不存在');
      }
      return successResponse(customer);
    } catch (error) {
      return errorResponse(error.message);
    }
  }

  /**
   * 更新单个客户
   * 使用UpdateCustomerDTO进行数据验证
   */
  @ApiOkResponse({ type: GetCustomerDTO })
  @Put('/:id')
  async updateCustomer(@Param('id') id: number, @Body() body: UpdateCustomerDTO) {
    try {
      const customer = await this.customerService.updateCustomer(id, body);
      if (!customer) {
        return errorResponse('客户不存在');
      }
      return successResponse(customer);
    } catch (error) {
      return errorResponse(error.message);
    }
  }

  /**
   * 删除单个客户
   * 根据客户ID删除客户记录
   */
  @ApiOkResponse({ type: Object })
  @Del('/:id')
  async deleteCustomer(@Param('id') id: number) {
    try {
      // 先检查客户是否存在
      const customer = await this.customerService.customerModel.findOne({ where: { id } });
      if (!customer) {
        return errorResponse('客户不存在');
      }
      // 删除客户
      await this.customerService.customerModel.delete(id);
      return successResponse({ message: '删除成功' });
    } catch (error) {
      return errorResponse(error.message);
    }
  }

  // ====================== 批量客户操作 ======================

  /**
   * 批量创建客户
   * 使用BatchCreateCustomerDTO进行数据验证
   */
  @ApiOkResponse({ type: Object })
  @Post('/batch')
  async batchCreateCustomers(@Body() body: BatchCreateCustomerDTO) {
    try {
      const result = await this.customerService.upsertManyCustomers(body.customers.map(c => ({ ...c, origin_id: String(c.origin_id) })));
      return successResponse(result);
    } catch (error) {
      return errorResponse(error.message);
    }
  }

  /**
   * 批量更新客户
   * 使用BatchUpdateCustomerDTO进行数据验证
   * 每个客户可以有独立的更新字段，支持统一化修改或分别更新
   */
  @ApiOkResponse({ type: Object })
  @Put('/batch')
  async batchUpdateCustomers(@Body() body: BatchUpdateCustomerDTO) {
    try {
      const { customers } = body;
      
      // 调用service层的批量更新方法
      const result = await this.customerService.batchUpdateCustomers(customers);
      
      return successResponse({
        total: result.total,
        updated: result.updated,
        processed: result.processed,
        errors: result.errors,
        message: `成功更新${result.updated}个客户，共处理${result.processed}个`
      });
    } catch (error) {
      return errorResponse(error.message);
    }
  }

  /**
   * 批量删除客户
   * 使用BatchDeleteCustomerDTO进行数据验证
   */
  @ApiOkResponse({ type: Object })
  @Del('/batch')
  async batchDeleteCustomers(@Body() body: BatchDeleteCustomerDTO) {
    try {
      const { ids } = body;
      
      // 调用service层的批量删除方法
      const result = await this.customerService.batchDeleteCustomers(ids);
      
      return successResponse({
        total: result.total,
        updated: result.updated,
        processed: result.processed,
        errors: result.errors,
        message: `成功删除${result.updated}个客户，共处理${result.processed}个`
      });
    } catch (error) {
      return errorResponse(error.message);
    }
  }
}