import {
  BadRequestException,
  Body,
  Controller,
  Get,
  Param,
  Post,
  Put,
  Query,
  UseGuards,
} from '@nestjs/common'
import { BookingStatus, UserRole } from '@mp-pilates/shared'
import { JwtAuthGuard } from '../auth/jwt-auth.guard'
import { RolesGuard } from '../auth/roles.guard'
import { Roles } from '../auth/roles.decorator'
import { CurrentUser } from '../common/decorators/current-user.decorator'
import { BookingService } from './booking.service'
import { CreateBookingDto } from './dto/create-booking.dto'

@Controller()
export class BookingController {
  constructor(private readonly bookingService: BookingService) {}

  // ─── User Endpoints ───────────────────────────────────────────────────────

  @Post('booking')
  @UseGuards(JwtAuthGuard)
  async createBooking(
    @CurrentUser('sub') userId: string,
    @Body() dto: CreateBookingDto,
  ) {
    return this.bookingService.createBooking(userId, dto)
  }

  @Put('booking/:id/cancel')
  @UseGuards(JwtAuthGuard)
  async cancelBooking(
    @CurrentUser('sub') userId: string,
    @Param('id') id: string,
  ) {
    return this.bookingService.cancelBooking(userId, id)
  }

  @Get('booking/my/upcoming')
  @UseGuards(JwtAuthGuard)
  async getUpcomingBookings(@CurrentUser('sub') userId: string) {
    return this.bookingService.getUpcomingBookings(userId)
  }

  @Get('booking/my')
  @UseGuards(JwtAuthGuard)
  async getMyBookings(
    @CurrentUser('sub') userId: string,
    @Query('status') status?: BookingStatus,
    @Query('page') page?: string,
    @Query('limit') limit?: string,
  ) {
    return this.bookingService.getMyBookings(
      userId,
      status,
      page ? Number(page) : 1,
      limit ? Number(limit) : 10,
    )
  }

  @Get('booking/:id/history')
  @UseGuards(JwtAuthGuard)
  async getBookingStatusHistory(@Param('id') id: string) {
    return this.bookingService.getBookingStatusHistory(id)
  }

  @Get('booking/:id')
  @UseGuards(JwtAuthGuard)
  async getBookingById(@Param('id') id: string) {
    return this.bookingService.getBookingById(id)
  }

  // ─── Admin Endpoints ──────────────────────────────────────────────────────

  @Get('admin/bookings')
  @UseGuards(JwtAuthGuard, RolesGuard)
  @Roles(UserRole.ADMIN)
  async getAllBookings(
    @Query('page') page?: string,
    @Query('limit') limit?: string,
    @Query('status') status?: BookingStatus,
  ) {
    return this.bookingService.getAllBookings(
      page ? Number(page) : 1,
      limit ? Number(limit) : 10,
      status,
    )
  }

  @Get('admin/teaching-schedule')
  @UseGuards(JwtAuthGuard, RolesGuard)
  @Roles(UserRole.ADMIN)
  async getTeachingSchedule(@Query('date') date?: string) {
    if (!date) {
      throw new BadRequestException('date is required')
    }
    return this.bookingService.getTeachingScheduleByDate(date)
  }

  @Put('booking/:id/confirm')
  @UseGuards(JwtAuthGuard, RolesGuard)
  @Roles(UserRole.ADMIN)
  async confirmBooking(
    @CurrentUser('sub') operatorId: string,
    @Param('id') id: string,
    @Body() body: { remark?: string },
  ) {
    return this.bookingService.confirmBooking(id, operatorId, body.remark)
  }

  @Put('booking/:id/complete')
  @UseGuards(JwtAuthGuard, RolesGuard)
  @Roles(UserRole.ADMIN)
  async completeBooking(
    @CurrentUser('sub') operatorId: string,
    @Param('id') id: string,
    @Body() body: { remark?: string },
  ) {
    return this.bookingService.completeBooking(id, operatorId, body.remark)
  }

  @Put('booking/:id/noshow')
  @UseGuards(JwtAuthGuard, RolesGuard)
  @Roles(UserRole.ADMIN)
  async markNoShow(
    @CurrentUser('sub') operatorId: string,
    @Param('id') id: string,
    @Body() body: { remark?: string },
  ) {
    return this.bookingService.markNoShow(id, operatorId, body.remark)
  }
}