import { BadRequestException, Body, Controller, Post, Req, UseGuards } from '@nestjs/common';
import type { Request } from 'express';
import { AnalyticsService } from './analytics.service';
import { PromoCodeService } from '../promo/promo-code.service';
import { extractClientIp } from '../../common/geo/client-ip.util';
import { JwtAuthGuard, AuthUser } from '../../common/guards/jwt-auth.guard';
import { OptionalJwtAuthGuard } from '../../common/guards/optional-jwt-auth.guard';
import { CurrentUser } from '../../common/decorators/current-user.decorator';
import { PromoTouchDto } from './dto/promo.dto';
import {
  TrackPartnerEventsDto,
  TrackStoreEventsDto,
  TrackUserEventsDto,
} from './dto/track-events.dto';
import { ActorType, ClientApp } from '@dukang/shared-types';

@Controller('analytics')
export class AnalyticsController {
  constructor(private readonly analyticsService: AnalyticsService) {}

  @Post('events')
  @UseGuards(OptionalJwtAuthGuard)
  track(@CurrentUser() user: AuthUser | undefined, @Body() body: TrackUserEventsDto) {
    const userId = user?.actorType === ActorType.USER ? user.actorId : undefined;
    const clientApp = user?.clientApp ?? body.clientApp ?? ClientApp.USER_H5;
    return this.analyticsService.trackBatchOptional(userId, clientApp, body.events, body.sessionId);
  }

  @Post('store-events')
  @UseGuards(JwtAuthGuard)
  trackStore(@CurrentUser() user: AuthUser, @Body() body: TrackStoreEventsDto) {
    if (user.actorType !== ActorType.STORE) {
      throw new BadRequestException('仅门店端可上报');
    }
    const storeId = body.storeId ? BigInt(body.storeId) : user.storeId;
    if (storeId == null) throw new BadRequestException('缺少门店信息');
    return this.analyticsService.trackStoreBatch(
      user.actorId,
      storeId,
      user.clientApp,
      body.events,
      body.sessionId,
    );
  }

  @Post('partner-events')
  @UseGuards(JwtAuthGuard)
  trackPartner(@CurrentUser() user: AuthUser, @Body() body: TrackPartnerEventsDto) {
    if (user.actorType !== ActorType.PARTNER) {
      throw new BadRequestException('仅合伙人端可上报');
    }
    return this.analyticsService.trackPartnerBatch(
      user.actorId,
      user.actorId,
      user.clientApp,
      body.events,
      body.sessionId,
    );
  }
}

@Controller('promo')
export class PromoController {
  constructor(
    private readonly promoCodeService: PromoCodeService,
    private readonly analyticsService: AnalyticsService,
  ) {}

  @Post('touch')
  @UseGuards(OptionalJwtAuthGuard)
  async touch(
    @CurrentUser() user: AuthUser | undefined,
    @Body() dto: PromoTouchDto,
    @Req() req: Request,
  ) {
    const userId = user?.actorType === ActorType.USER ? user.actorId : undefined;
    const clientIp = extractClientIp(req) ?? undefined;
    const result = await this.promoCodeService.touch(
      {
        promoCode: dto.promoCode,
        qrcodeId: dto.qrcodeId,
        promoId: dto.promoId,
        countScan: dto.countScan,
      },
      userId,
      { clientIp, sessionId: dto.sessionId },
    );

    void this.analyticsService.trackBatchOptional(
      userId,
      user?.clientApp ?? ClientApp.USER_H5,
      [
        {
          eventName: 'promo_touch',
          params: {
            sessionId: dto.sessionId,
            promoCode: result.promoCode,
            promoCodeId: result.promoCodeId,
            channelName: result.channelName,
            attributed: result.attributed,
            sourceApplied: result.sourceApplied,
            scanCounted: result.scanCounted,
            sourceType: 'PROMO_CODE',
            sourceRefId: result.promoCodeId,
          },
        },
      ],
      dto.sessionId,
    );

    return result;
  }
}