import { Body, Controller, Get, Param, ParseUUIDPipe, Patch, Post, Query } from '@nestjs/common';
import { ApiBearerAuth, ApiOperation, ApiTags } from '@nestjs/swagger';

import { BookingStaff } from '../../common/booking-guards';
import { FREIGHT_PERMS } from '../../seed/freight-permissions.registry';
import { CreateWarehouseDto } from './dto/create-warehouse.dto';
import { CreateWarehouseYardDto } from './dto/create-warehouse-yard.dto';
import { FilterWarehouseDto } from './dto/filter-warehouse.dto';
import { UpdateWarehouseDto } from './dto/update-warehouse.dto';
import { WarehouseDashboardService } from './warehouse-dashboard.service';
import { WarehouseYardsService } from './warehouse-yards.service';
import { WarehousesService } from './warehouses.service';

@ApiTags('warehouses')
@ApiBearerAuth()
// Baseline read: warehouse reference data is consumed by inventory/dashboard
// flows too, so any of the view permissions grants reads. Writes stack their
// specific create/update permission per route on top — which means every key
// used by a route below must also appear here, or the class guard denies
// before the route's own key is ever consulted (Nest ANDs the two).
@Controller('warehouses')
@BookingStaff([
  FREIGHT_PERMS.warehouses.view,
  FREIGHT_PERMS.warehouseInventory.view,
  FREIGHT_PERMS.warehouseDashboard.view,
  FREIGHT_PERMS.warehouses.create,
  FREIGHT_PERMS.warehouses.update,
  FREIGHT_PERMS.warehouseYards.view,
  FREIGHT_PERMS.warehouseYards.create,
])
export class WarehousesController {
  constructor(
    private readonly warehousesService: WarehousesService,
    private readonly yardsService: WarehouseYardsService,
    private readonly dashboardService: WarehouseDashboardService,
  ) {}

  @Get()
  @ApiOperation({ summary: 'List warehouses' })
  findAll(@Query() filter: FilterWarehouseDto) {
    return this.warehousesService.findAll(filter);
  }

  @Get('dashboard')
  @BookingStaff(FREIGHT_PERMS.warehouseDashboard.view)
  @ApiOperation({
    summary: 'Warehouse dashboard metrics',
    description:
      'dateFrom/dateTo scope only the activity counters (currently just "received"); ' +
      'status-backlog and fleet counters are always current. Omit both for "received today" ' +
      '(the original default). warehouseId scopes every warehouse_inventory-derived counter; ' +
      'totalWarehouses/emptyContainers/importTrains/exportTrains are never warehouse-scoped.',
  })
  dashboard(
    @Query('dateFrom') dateFrom?: string,
    @Query('dateTo') dateTo?: string,
    @Query('warehouseId') warehouseId?: string,
  ) {
    return this.dashboardService.getDashboard({ dateFrom, dateTo, warehouseId });
  }

  @Post()
  @BookingStaff(FREIGHT_PERMS.warehouses.create)
  @ApiOperation({ summary: 'Create warehouse' })
  create(@Body() dto: CreateWarehouseDto) {
    return this.warehousesService.create(dto);
  }

  @Get(':id')
  @ApiOperation({ summary: 'Get warehouse by ID' })
  findOne(@Param('id', ParseUUIDPipe) id: string) {
    return this.warehousesService.findById(id);
  }

  @Patch(':id')
  @BookingStaff(FREIGHT_PERMS.warehouses.update)
  @ApiOperation({ summary: 'Update warehouse' })
  update(@Param('id', ParseUUIDPipe) id: string, @Body() dto: UpdateWarehouseDto) {
    return this.warehousesService.update(id, dto);
  }

  @Get(':warehouseId/yards')
  @BookingStaff(FREIGHT_PERMS.warehouseYards.view)
  @ApiOperation({ summary: 'List yards within a warehouse' })
  listYards(@Param('warehouseId', ParseUUIDPipe) warehouseId: string) {
    return this.yardsService.findByWarehouse(warehouseId);
  }

  @Post(':warehouseId/yards')
  @BookingStaff(FREIGHT_PERMS.warehouseYards.create)
  @ApiOperation({ summary: 'Create a yard within a warehouse' })
  createYard(
    @Param('warehouseId', ParseUUIDPipe) warehouseId: string,
    @Body() dto: CreateWarehouseYardDto,
  ) {
    return this.yardsService.create(warehouseId, dto);
  }
}