import { logger } from '../utils/logger';

export interface Report {
  id: string;
  tenantId: string;
  shopId: string;
  reportType: 'SALES' | 'PROFIT' | 'INVENTORY' | 'AD_PERFORMANCE' | 'FINANCE';
  name: string;
  parameters: Record<string, any>;
  status: 'RAW_DATA' | 'PROCESSED' | 'GENERATED' | 'DISTRIBUTED' | 'FEEDBACK_APPLIED';
  data: any;
  traceId: string;
  taskId: string;
  businessType: 'TOC' | 'TOB';
  createdAt: Date;
  updatedAt: Date;
}

export interface CreateReportParams {
  tenantId: string;
  shopId: string;
  reportType: 'SALES' | 'PROFIT' | 'INVENTORY' | 'AD_PERFORMANCE' | 'FINANCE';
  name: string;
  parameters: Record<string, any>;
  traceId: string;
  taskId: string;
  businessType: 'TOC' | 'TOB';
}

export interface ReportResult {
  success: boolean;
  report: Report;
  message: string;
}

export class ReportService {
  /**
   * 初始化数据库表
   */
  static async initTable() {
    logger.info('🚀 ReportService table initialized');
    // 这里可以添加数据库表初始化逻辑
  }

  /**
   * 创建报表
   */
  static async createReport(params: CreateReportParams): Promise<ReportResult> {
    logger.info(`[ReportService] Creating report: ${params.name} (${params.reportType})`, { traceId: params.traceId });
    
    const report: Report = {
      id: 'report_' + Date.now(),
      tenantId: params.tenantId,
      shopId: params.shopId,
      reportType: params.reportType,
      name: params.name,
      parameters: params.parameters,
      status: 'RAW_DATA',
      data: null,
      traceId: params.traceId,
      taskId: params.taskId,
      businessType: params.businessType,
      createdAt: new Date(),
      updatedAt: new Date()
    };
    
    // 这里可以添加创建报表的逻辑
    
    return {
      success: true,
      report,
      message: 'Report created successfully'
    };
  }

  /**
   * 生成报表数据
   */
  static async generateReportData(reportId: string, traceId: string): Promise<ReportResult> {
    logger.info(`[ReportService] Generating data for report: ${reportId}`, { traceId });
    
    // 这里可以添加生成报表数据的逻辑
    
    const report: Report = {
      id: reportId,
      tenantId: 'tenant_1',
      shopId: 'shop_1',
      reportType: 'SALES',
      name: 'Sales Report',
      parameters: {},
      status: 'GENERATED',
      data: {
        totalSales: 10000,
        orders: 100,
        averageOrderValue: 100,
        topProducts: [],
        salesByDate: []
      },
      traceId,
      taskId: 'task_1',
      businessType: 'TOC',
      createdAt: new Date(),
      updatedAt: new Date()
    };
    
    return {
      success: true,
      report,
      message: 'Report data generated successfully'
    };
  }

  /**
   * 获取报表列表
   */
  static async getReports(tenantId: string, shopId: string, traceId: string): Promise<Report[]> {
    logger.info(`[ReportService] Getting reports for tenant: ${tenantId}, shop: ${shopId}`, { traceId });
    // 这里可以添加获取报表列表的逻辑
    return [];
  }

  /**
   * 获取报表详情
   */
  static async getReportById(id: string, traceId: string): Promise<Report | null> {
    logger.info(`[ReportService] Getting report: ${id}`, { traceId });
    // 这里可以添加获取报表详情的逻辑
    return null;
  }

  /**
   * 分发报表
   */
  static async distributeReport(id: string, recipients: string[], traceId: string): Promise<ReportResult> {
    logger.info(`[ReportService] Distributing report: ${id} to ${recipients.length} recipients`, { traceId });
    
    // 这里可以添加分发报表的逻辑
    
    const report: Report = {
      id,
      tenantId: 'tenant_1',
      shopId: 'shop_1',
      reportType: 'SALES',
      name: 'Sales Report',
      parameters: {},
      status: 'DISTRIBUTED',
      data: {},
      traceId,
      taskId: 'task_1',
      businessType: 'TOC',
      createdAt: new Date(),
      updatedAt: new Date()
    };
    
    return {
      success: true,
      report,
      message: 'Report distributed successfully'
    };
  }

  /**
   * 应用反馈
   */
  static async applyFeedback(id: string, feedback: any, traceId: string): Promise<ReportResult> {
    logger.info(`[ReportService] Applying feedback to report: ${id}`, { traceId });
    
    // 这里可以添加应用反馈的逻辑
    
    const report: Report = {
      id,
      tenantId: 'tenant_1',
      shopId: 'shop_1',
      reportType: 'SALES',
      name: 'Sales Report',
      parameters: {},
      status: 'FEEDBACK_APPLIED',
      data: {},
      traceId,
      taskId: 'task_1',
      businessType: 'TOC',
      createdAt: new Date(),
      updatedAt: new Date()
    };
    
    return {
      success: true,
      report,
      message: 'Feedback applied successfully'
    };
  }

  /**
   * 生成实时数据大屏
   */
  static async generateDashboard(tenantId: string, shopId: string, widgets: string[], traceId: string): Promise<any> {
    logger.info(`[ReportService] Generating dashboard for tenant: ${tenantId}, shop: ${shopId}`, { traceId });
    // 这里可以添加生成实时数据大屏的逻辑
    return {
      success: true,
      dashboard: {
        widgets: widgets,
        data: {}
      }
    };
  }
}
