<?php

namespace App\Http\Controllers\Api\V1;

use App\Helpers\ApiResponse;
use App\Http\Controllers\Controller;
use App\Services\BendingCodeService;
use Illuminate\Http\JsonResponse;
use Illuminate\Http\Request;

class BendingController extends Controller
{
    public function __construct(
        private readonly BendingCodeService $service
    ) {}

    /**
     * 절곡품 코드맵 조회 (캐스케이딩 드롭다운용)
     */
    public function codeMap(): JsonResponse
    {
        return ApiResponse::handle(function () {
            return $this->service->getCodeMap();
        }, __('message.fetched'));
    }

    /**
     * 드롭다운 선택 → 품목 매핑 조회
     */
    public function resolveItem(Request $request): JsonResponse
    {
        return ApiResponse::handle(function () use ($request) {
            $prodCode = $request->query('prod');
            $specCode = $request->query('spec');
            $lengthCode = $request->query('length');

            if (! $prodCode || ! $specCode || ! $lengthCode) {
                return ['error' => 'MISSING_PARAMS', 'code' => 400, 'message' => 'prod, spec, length 파라미터가 필요합니다.'];
            }

            $item = $this->service->resolveItem($prodCode, $specCode, $lengthCode);

            if (! $item) {
                return ['error' => 'NOT_MAPPED', 'code' => 404, 'message' => '해당 조합에 매핑된 품목이 없습니다.'];
            }

            return $item;
        }, __('message.fetched'));
    }

    /**
     * LOT 번호 생성 (프리뷰 + 일련번호 확정)
     */
    public function generateLotNumber(Request $request): JsonResponse
    {
        return ApiResponse::handle(function () use ($request) {
            $prodCode = $request->input('prod_code');
            $specCode = $request->input('spec_code');
            $lengthCode = $request->input('length_code');
            $regDate = $request->input('reg_date', now()->toDateString());

            if (! $prodCode || ! $specCode || ! $lengthCode) {
                return ['error' => 'MISSING_PARAMS', 'code' => 400, 'message' => 'prod_code, spec_code, length_code가 필요합니다.'];
            }

            $dateCode = BendingCodeService::generateDateCode($regDate);
            $lotBase = "{$prodCode}{$specCode}{$dateCode}-{$lengthCode}";
            $lotNumber = $this->service->generateLotNumber($lotBase);
            $material = BendingCodeService::getMaterial($prodCode, $specCode);

            return [
                'lot_base' => $lotBase,
                'lot_number' => $lotNumber,
                'date_code' => $dateCode,
                'material' => $material,
            ];
        }, __('message.fetched'));
    }
}