import { Body, Controller, Get, Param, Patch, Post, Query, Req, UseGuards, UsePipes, ValidationPipe } from '@nestjs/common';
import { ApiBearerAuth, ApiBody, ApiOperation, ApiResponse, ApiTags } from '@nestjs/swagger';
import { AuthGuard } from 'src/auth/auth.guard';
import { RolesGuard } from 'src/guard/role.guard';
import { Roles } from 'src/guard/decorators/role.decorator';
import { CommonService } from 'src/common/common.service';
import { STAFF_ROLES, UserType } from 'src/user/schema/users.schema';
import { RegionService } from './region.service';
import { RegionListDto, CreateRegionDto, UpdateRegionDto } from './dto/region.dto';

@ApiTags('Regions')
@ApiBearerAuth('access_token')
@UseGuards(AuthGuard, RolesGuard)
@Roles(UserType.SUPER_ADMIN, ...STAFF_ROLES)
@UsePipes(new ValidationPipe({ transform: true, whitelist: true }))
@Controller('admin/regions')
export class RegionController {
    constructor(
        private readonly regionService: RegionService,
        private readonly common: CommonService
    ) { }

    @Post()
    @Roles(UserType.SUPER_ADMIN, UserType.ADMIN_STAFF)
    @ApiOperation({ summary: 'Add a region (city, state)' })
    @ApiBody({ type: CreateRegionDto })
    @ApiResponse({ status: 201, description: 'Region created' })
    @ApiResponse({ status: 400, description: 'Region already exists' })
    create(@Req() req: any, @Body() dto: CreateRegionDto) {
        return this.regionService.create(dto, this.common.getUserLanguage(req));
    }

    @Get()
    @ApiOperation({ summary: 'List regions (filter by search and is_active)' })
    list(@Req() req: any, @Query() query: RegionListDto) {
        return this.regionService.list(query, this.common.getUserLanguage(req));
    }

    @Get(':id')
    @ApiOperation({ summary: 'Get a region' })
    @ApiResponse({ status: 404, description: 'Region not found' })
    getById(@Req() req: any, @Param('id') id: string) {
        return this.regionService.getById(id, this.common.getUserLanguage(req));
    }

    @Patch(':id')
    @Roles(UserType.SUPER_ADMIN, UserType.ADMIN_STAFF)
    @ApiOperation({ summary: 'Rename a region or activate/deactivate it. Deactivating only hides it from new agents.' })
    @ApiBody({ type: UpdateRegionDto })
    @ApiResponse({ status: 404, description: 'Region not found' })
    update(@Req() req: any, @Param('id') id: string, @Body() dto: UpdateRegionDto) {
        return this.regionService.update(id, dto, this.common.getUserLanguage(req));
    }
}