import {
  Controller,
  Get,
  Post,
  Put,
  Delete,
  Body,
  Param,
  Query,
  UseGuards,
  ParseUUIDPipe,
} from '@nestjs/common';
import { JwtAuthGuard } from '@modules/auth/guards/jwt-auth.guard';
import { CurrentUser } from '@modules/auth/decorators/current-user.decorator';
import { PeriodsService } from '../services';
import {
  CreatePeriodDto,
  UpdatePeriodDto,
  ClosePeriodDto,
  MarkPaidDto,
  PeriodListQueryDto,
  PeriodResponseDto,
  PaginatedPeriodsDto,
} from '../dto';

interface RequestUser {
  id: string;
  tenant_id: string;
  email: string;
  role: string;
}

@Controller('commissions/periods')
@UseGuards(JwtAuthGuard)
export class PeriodsController {
  constructor(private readonly periodsService: PeriodsService) {}

  @Get()
  async findAll(
    @CurrentUser() user: RequestUser,
    @Query() query: PeriodListQueryDto,
  ): Promise<PaginatedPeriodsDto> {
    return this.periodsService.findAll(user.tenant_id, query);
  }

  @Get('current')
  async getCurrentPeriod(@CurrentUser() user: RequestUser): Promise<PeriodResponseDto | null> {
    return this.periodsService.getCurrentPeriod(user.tenant_id);
  }

  @Get(':id')
  async findOne(
    @CurrentUser() user: RequestUser,
    @Param('id', ParseUUIDPipe) id: string,
  ): Promise<PeriodResponseDto> {
    return this.periodsService.findOne(user.tenant_id, id);
  }

  @Post()
  async create(
    @CurrentUser() user: RequestUser,
    @Body() dto: CreatePeriodDto,
  ): Promise<PeriodResponseDto> {
    return this.periodsService.create(user.tenant_id, user.id, dto);
  }

  @Put(':id')
  async update(
    @CurrentUser() user: RequestUser,
    @Param('id', ParseUUIDPipe) id: string,
    @Body() dto: UpdatePeriodDto,
  ): Promise<PeriodResponseDto> {
    return this.periodsService.update(user.tenant_id, id, dto);
  }

  @Post(':id/close')
  async close(
    @CurrentUser() user: RequestUser,
    @Param('id', ParseUUIDPipe) id: string,
    @Body() dto: ClosePeriodDto,
  ): Promise<PeriodResponseDto> {
    return this.periodsService.close(user.tenant_id, id, user.id, dto);
  }

  @Post(':id/mark-paid')
  async markPaid(
    @CurrentUser() user: RequestUser,
    @Param('id', ParseUUIDPipe) id: string,
    @Body() dto: MarkPaidDto,
  ): Promise<PeriodResponseDto> {
    return this.periodsService.markAsPaid(user.tenant_id, id, user.id, dto);
  }

  @Delete(':id')
  async remove(
    @CurrentUser() user: RequestUser,
    @Param('id', ParseUUIDPipe) id: string,
  ): Promise<{ message: string }> {
    await this.periodsService.remove(user.tenant_id, id);
    return { message: 'Commission period deleted successfully' };
  }

  @Post(':id/assign-entries')
  async assignEntries(
    @CurrentUser() user: RequestUser,
    @Param('id', ParseUUIDPipe) id: string,
    @Body() body: { entryIds: string[] },
  ): Promise<{ assigned: number }> {
    const assigned = await this.periodsService.assignEntriesToPeriod(
      user.tenant_id,
      id,
      body.entryIds,
    );
    return { assigned };
  }
}