import { Controller, Get, Post, Param, Body, Query, UseGuards } from '@nestjs/common';
import { ApiTags, ApiOperation, ApiBearerAuth, ApiResponse, ApiQuery } from '@nestjs/swagger';
import { JwtAuthGuard } from '../auth/guards/jwt-auth.guard';
import { RolesGuard } from '../common/guards/roles.guard';
import { Roles } from '../common/decorators/roles.decorator';
import { VenueAccessGuard } from '../common/guards/venue-access.guard';
import { RemindersService } from './reminders.service';
import { SendRemindersDto } from './dto/send-reminders.dto';

@ApiTags('Reminders')
@ApiBearerAuth()
@UseGuards(JwtAuthGuard, VenueAccessGuard)
@Controller('venues/:venueId/reminders')
export class RemindersController {
  constructor(private service: RemindersService) {}

  @Get('candidates')
  @ApiOperation({ summary: 'List customers with an unpaid tab and their reminder history' })
  @ApiResponse({ status: 200, description: 'Unpaid tabs with email, amount, reminder count and eligibility' })
  async listCandidates(@Param('venueId') venueId: string) {
    return this.service.listCandidates(venueId);
  }

  @Post('send')
  @UseGuards(RolesGuard)
  @Roles('admin', 'manager')
  @ApiOperation({ summary: 'Send payment reminders via Resend (admin only)' })
  @ApiResponse({ status: 201, description: 'Reminders sent' })
  @ApiResponse({ status: 400, description: 'Resend not configured' })
  @ApiResponse({ status: 409, description: 'Reminders are already being sent' })
  async send(@Param('venueId') venueId: string, @Body() dto: SendRemindersDto) {
    return this.service.sendReminders(venueId, dto.tabIds);
  }

  @Get()
  @ApiOperation({ summary: 'Get reminder history' })
  @ApiQuery({ name: 'customerName', required: false, description: 'Only reminders sent to this customer' })
  @ApiResponse({ status: 200, description: 'List of previously sent reminders' })
  async history(@Param('venueId') venueId: string, @Query('customerName') customerName?: string) {
    return this.service.history(venueId, customerName);
  }

  @Post('test/:plannedTabId')
  @UseGuards(RolesGuard)
  @Roles('admin', 'manager')
  @ApiOperation({ summary: 'Send a test email to a planned customer (admin only)' })
  @ApiResponse({ status: 201, description: 'Test email sent' })
  @ApiResponse({ status: 400, description: 'Resend not configured or customer has no email' })
  @ApiResponse({ status: 404, description: 'Planned customer not found' })
  async sendTest(
    @Param('venueId') venueId: string,
    @Param('plannedTabId') plannedTabId: string,
  ) {
    return this.service.sendTestEmail(venueId, plannedTabId);
  }
}