import { Controller, Get, Param, Query, Req, UseGuards } from '@nestjs/common';
import type { Request } from 'express';
import { WecomPluginGuard } from './wecom-plugin.guard';
import { WecomPluginQueryService } from './wecom-plugin-query.service';
import { WECOM_PLUGIN_OPENAPI } from './wecom-plugin.openapi';

@Controller('wecom/plugin')
@UseGuards(WecomPluginGuard)
export class WecomPluginController {
  constructor(private readonly query: WecomPluginQueryService) {}

  @Get()
  info() {
    return this.query.info();
  }

  @Get('openapi.json')
  openapi() {
    return WECOM_PLUGIN_OPENAPI;
  }

  @Get('orders')
  orders(
    @Req() req: Request,
    @Query('q') q?: string,
    @Query('page') page?: string,
    @Query('pageSize') pageSize?: string,
  ) {
    return this.query.queryOrders(pluginCaller(req), q, page, pageSize);
  }

  @Get('users')
  users(
    @Req() req: Request,
    @Query('q') q?: string,
    @Query('page') page?: string,
    @Query('pageSize') pageSize?: string,
  ) {
    return this.query.queryUsers(pluginCaller(req), q, page, pageSize);
  }

  @Get('stores')
  stores(
    @Req() req: Request,
    @Query('q') q?: string,
    @Query('page') page?: string,
    @Query('pageSize') pageSize?: string,
  ) {
    return this.query.queryStores(pluginCaller(req), q, page, pageSize);
  }

  @Get('redeems')
  redeems(
    @Req() req: Request,
    @Query('q') q?: string,
    @Query('page') page?: string,
    @Query('pageSize') pageSize?: string,
  ) {
    return this.query.queryRedeems(pluginCaller(req), q, page, pageSize);
  }

  @Get('promo-codes')
  promoCodes(
    @Req() req: Request,
    @Query('q') q?: string,
    @Query('page') page?: string,
    @Query('pageSize') pageSize?: string,
  ) {
    return this.query.queryPromoCodes(pluginCaller(req), q, page, pageSize);
  }

  @Get('promo-codes/:code/stats')
  promoStats(@Req() req: Request, @Param('code') code: string) {
    return this.query.queryPromoCodeStats(pluginCaller(req), code);
  }

  @Get('metrics')
  metrics(@Req() req: Request, @Query('kind') kind?: string) {
    return this.query.queryMetrics(pluginCaller(req), kind);
  }
}

function pluginCaller(req: Request): string {
  const raw = req.headers['x-wecom-userid'] ?? req.headers['userid'];
  const v = Array.isArray(raw) ? raw[0] : raw;
  return String(v || 'plugin').trim() || 'plugin';
}