<?php

declare(strict_types=1);

namespace App\Controller\Api\V1;

use App\Controller\AbstractController;
use App\Middleware\AuthMiddleware;
use App\Middleware\PermissionMiddleware;
use App\Model\SkuOrigin;
use App\Service\OperationLogService;
use App\Service\SkuService;
use Hyperf\HttpServer\Annotation\Controller;
use Hyperf\HttpServer\Annotation\Middleware;
use Hyperf\HttpServer\Annotation\RequestMapping;
use OpenApi\Attributes as OA;
use Psr\Http\Message\ResponseInterface;

/**
 * 客户内部 SKU 管理接口
 */
#[OA\Tag(name: 'SkuOrigins', description: '客户内部 SKU 管理')]
#[Controller(prefix: "/api/v1/sku-origins")]
#[Middleware(AuthMiddleware::class)]
#[Middleware(PermissionMiddleware::class)]
class SkuOriginController extends AbstractController
{
    public function __construct(
        protected readonly SkuService $skuService,
    ) {}

    /**
     * SKU 列表
     */
    #[OA\Get(
        path: '/sku-origins',
        summary: '客户内部 SKU 列表',
        description: '获取客户内部 SKU 列表，支持分页和筛选',
        security: [['bearerAuth' => []]],
        tags: ['SkuOrigins'],
        parameters: [
            new OA\Parameter(name: 'page', in: 'query', required: false, schema: new OA\Schema(type: 'integer', default: 1)),
            new OA\Parameter(name: 'per_page', in: 'query', required: false, schema: new OA\Schema(type: 'integer', default: 15, maximum: 100)),
            new OA\Parameter(name: 'company_id', in: 'query', required: false, description: '公司 ID 精确筛选', schema: new OA\Schema(type: 'integer')),
            new OA\Parameter(name: 'sku', in: 'query', required: false, description: 'SKU 编码模糊搜索', schema: new OA\Schema(type: 'string')),
            new OA\Parameter(name: 'name', in: 'query', required: false, description: '产品名称模糊搜索', schema: new OA\Schema(type: 'string')),
            new OA\Parameter(name: 'barcode', in: 'query', required: false, description: '条形码模糊搜索', schema: new OA\Schema(type: 'string')),
        ],
        responses: [
            new OA\Response(
                response: 200,
                description: '获取成功',
                content: new OA\JsonContent(properties: [
                    new OA\Property(property: 'code', type: 'integer', example: 0),
                    new OA\Property(property: 'message', type: 'string', example: '获取成功'),
                    new OA\Property(property: 'data', properties: [
                        new OA\Property(property: 'items', type: 'array', items: new OA\Items(ref: '#/components/schemas/SkuOrigin')),
                        new OA\Property(property: 'total', type: 'integer', example: 100),
                        new OA\Property(property: 'page', type: 'integer', example: 1),
                        new OA\Property(property: 'per_page', type: 'integer', example: 15),
                    ], type: 'object'),
                ])
            ),
            new OA\Response(response: 401, description: '未认证', content: new OA\JsonContent(ref: '#/components/schemas/ErrorResponse')),
            new OA\Response(response: 403, description: '无权限', content: new OA\JsonContent(ref: '#/components/schemas/ErrorResponse')),
        ]
    )]
    #[RequestMapping(path: "", methods: "GET")]
    public function index(): array
    {
        $query = SkuOrigin::query()->select([
            'id', 'company_id', 'sku', 'barcode', 'name', 'label', 'hs', 'created_at', 'updated_at',
        ]);

        // DataScope 过滤
        $this->applyDataScope($query);

        // 筛选条件
        $company_id = $this->request->input('company_id');
        if ($company_id !== null && $company_id !== '') {
            $query->where('company_id', (int) $company_id);
        }

        $sku = $this->request->input('sku');
        if ($sku !== null && $sku !== '') {
            $query->where('sku', 'ilike', "%{$sku}%");
        }

        $name = $this->request->input('name');
        if ($name !== null && $name !== '') {
            $query->where(function ($q) use ($name): void {
                $q->where('name', 'ilike', "%{$name}%")
                    ->orWhere('label', 'ilike', "%{$name}%");
            });
        }

        $barcode = $this->request->input('barcode');
        if ($barcode !== null && $barcode !== '') {
            $query->where('barcode', 'ilike', "%{$barcode}%");
        }

        $query->orderBy('created_at', 'desc');

        // 分页
        $per_page = min(max((int) $this->request->input('per_page', 15), 1), 100);
        $page = max((int) $this->request->input('page', 1), 1);

        $total = $query->count();
        $items = $query->offset(($page - 1) * $per_page)->limit($per_page)->get();

        return [
            'code' => 0,
            'message' => '获取成功',
            'data' => [
                'items' => $items,
                'total' => $total,
                'page' => $page,
                'per_page' => $per_page,
            ],
        ];
    }

    /**
     * SKU 详情
     */
    #[OA\Get(
        path: '/sku-origins/{id}',
        summary: '客户内部 SKU 详情',
        security: [['bearerAuth' => []]],
        tags: ['SkuOrigins'],
        parameters: [
            new OA\Parameter(name: 'id', in: 'path', required: true, schema: new OA\Schema(type: 'integer')),
        ],
        responses: [
            new OA\Response(
                response: 200,
                description: '获取成功',
                content: new OA\JsonContent(properties: [
                    new OA\Property(property: 'code', type: 'integer', example: 0),
                    new OA\Property(property: 'message', type: 'string', example: '获取成功'),
                    new OA\Property(property: 'data', ref: '#/components/schemas/SkuOrigin'),
                ])
            ),
            new OA\Response(response: 404, description: '数据不存在', content: new OA\JsonContent(ref: '#/components/schemas/ErrorResponse')),
        ]
    )]
    #[RequestMapping(path: "{id}", methods: "GET")]
    public function show(int $id): ResponseInterface|array
    {
        $query = SkuOrigin::query();
        $this->applyDataScope($query);
        $record = $query->where('id', $id)->first();

        if (!$record) {
            return $this->response->json([
                'code' => 404,
                'message' => '数据不存在',
            ])->withStatus(404);
        }

        return [
            'code' => 0,
            'message' => '获取成功',
            'data' => $record,
        ];
    }

    /**
     * 创建 SKU
     */
    #[OA\Post(
        path: '/sku-origins',
        summary: '创建客户内部 SKU',
        security: [['bearerAuth' => []]],
        tags: ['SkuOrigins'],
        requestBody: new OA\RequestBody(
            required: true,
            content: new OA\JsonContent(
                required: ['company_id', 'sku', 'barcode', 'name'],
                properties: [
                    new OA\Property(property: 'company_id', type: 'integer', example: 3),
                    new OA\Property(property: 'sku', type: 'string', example: '0032'),
                    new OA\Property(property: 'barcode', type: 'string', example: '6901234567890'),
                    new OA\Property(property: 'name', type: 'string', example: 'Running Shoes Model A'),
                    new OA\Property(property: 'label', type: 'string', nullable: true, example: '跑步鞋 A 款'),
                    new OA\Property(property: 'hs', type: 'string', nullable: true, example: '6403990090'),
                    new OA\Property(property: 'ledger', type: 'string', nullable: true),
                    new OA\Property(property: 'ext', type: 'object', nullable: true),
                ]
            )
        ),
        responses: [
            new OA\Response(
                response: 201,
                description: '创建成功',
                content: new OA\JsonContent(properties: [
                    new OA\Property(property: 'code', type: 'integer', example: 0),
                    new OA\Property(property: 'message', type: 'string', example: '创建成功'),
                    new OA\Property(property: 'data', ref: '#/components/schemas/SkuOrigin'),
                ])
            ),
            new OA\Response(response: 422, description: '参数校验失败', content: new OA\JsonContent(ref: '#/components/schemas/ErrorResponse')),
        ]
    )]
    #[RequestMapping(path: "", methods: "POST")]
    public function store(): ResponseInterface|array
    {
        $data = $this->request->all();

        // 参数校验
        $required_fields = ['company_id', 'sku', 'barcode', 'name'];
        foreach ($required_fields as $field) {
            if (!isset($data[$field]) || $data[$field] === '') {
                return $this->response->json([
                    'code' => 422,
                    'message' => "缺少必填字段: {$field}",
                ])->withStatus(422);
            }
        }

        // 唯一性校验 (company_id + sku)
        $exists = SkuOrigin::query()
            ->where('company_id', (int) $data['company_id'])
            ->where('sku', $data['sku'])
            ->exists();

        if ($exists) {
            return $this->response->json([
                'code' => 422,
                'message' => "该公司下 SKU '{$data['sku']}' 已存在",
            ])->withStatus(422);
        }

        $record = SkuOrigin::query()->create([
            'company_id' => (int) $data['company_id'],
            'sku' => $data['sku'],
            'hs' => $data['hs'] ?? null,
            'barcode' => $data['barcode'],
            'name' => $data['name'],
            'label' => $data['label'] ?? null,
            'ledger' => $data['ledger'] ?? null,
            'ext' => $data['ext'] ?? null,
        ]);

        // 记录操作日志
        $user_id = OperationLogService::getCurrentUserId();
        if ($user_id) {
            OperationLogService::log(
                $user_id,
                'create',
                'sku_origin',
                $record->id,
                "创建内部 SKU: {$record->sku}",
                ip: $this->request->getHeaderLine('x-real-ip') ?: null,
            );
        }

        return $this->response->json([
            'code' => 0,
            'message' => '创建成功',
            'data' => $record,
        ])->withStatus(201);
    }

    /**
     * 更新 SKU
     */
    #[OA\Put(
        path: '/sku-origins/{id}',
        summary: '更新客户内部 SKU',
        security: [['bearerAuth' => []]],
        tags: ['SkuOrigins'],
        parameters: [
            new OA\Parameter(name: 'id', in: 'path', required: true, schema: new OA\Schema(type: 'integer')),
        ],
        requestBody: new OA\RequestBody(
            required: true,
            content: new OA\JsonContent(properties: [
                new OA\Property(property: 'sku', type: 'string'),
                new OA\Property(property: 'barcode', type: 'string'),
                new OA\Property(property: 'name', type: 'string'),
                new OA\Property(property: 'label', type: 'string', nullable: true),
                new OA\Property(property: 'hs', type: 'string', nullable: true),
                new OA\Property(property: 'ledger', type: 'string', nullable: true),
                new OA\Property(property: 'ext', type: 'object', nullable: true),
            ])
        ),
        responses: [
            new OA\Response(
                response: 200,
                description: '更新成功',
                content: new OA\JsonContent(properties: [
                    new OA\Property(property: 'code', type: 'integer', example: 0),
                    new OA\Property(property: 'message', type: 'string', example: '更新成功'),
                    new OA\Property(property: 'data', ref: '#/components/schemas/SkuOrigin'),
                ])
            ),
            new OA\Response(response: 404, description: '数据不存在', content: new OA\JsonContent(ref: '#/components/schemas/ErrorResponse')),
            new OA\Response(response: 422, description: '参数校验失败', content: new OA\JsonContent(ref: '#/components/schemas/ErrorResponse')),
        ]
    )]
    #[RequestMapping(path: "{id}", methods: "PUT")]
    public function update(int $id): ResponseInterface|array
    {
        $query = SkuOrigin::query();
        $this->applyDataScope($query);
        $record = $query->where('id', $id)->first();

        if (!$record) {
            return $this->response->json([
                'code' => 404,
                'message' => '数据不存在',
            ])->withStatus(404);
        }

        $data = $this->request->all();
        $allowed_fields = ['sku', 'barcode', 'name', 'label', 'hs', 'ledger', 'ext'];
        $update_data = array_intersect_key($data, array_flip($allowed_fields));

        // 如果修改了 sku，检查唯一性
        if (isset($update_data['sku']) && $update_data['sku'] !== $record->sku) {
            $exists = SkuOrigin::query()
                ->where('company_id', $record->company_id)
                ->where('sku', $update_data['sku'])
                ->where('id', '!=', $id)
                ->exists();

            if ($exists) {
                return $this->response->json([
                    'code' => 422,
                    'message' => "该公司下 SKU '{$update_data['sku']}' 已存在",
                ])->withStatus(422);
            }
        }

        $record->update($update_data);

        $user_id = OperationLogService::getCurrentUserId();
        if ($user_id) {
            OperationLogService::log(
                $user_id,
                'update',
                'sku_origin',
                $record->id,
                "更新内部 SKU: {$record->sku}",
                detail: ['updated_fields' => array_keys($update_data)],
                ip: $this->request->getHeaderLine('x-real-ip') ?: null,
            );
        }

        return [
            'code' => 0,
            'message' => '更新成功',
            'data' => $record->fresh(),
        ];
    }

    /**
     * 删除 SKU
     */
    #[OA\Delete(
        path: '/sku-origins/{id}',
        summary: '删除客户内部 SKU',
        description: '删除前检查是否有映射引用，有引用时禁止删除',
        security: [['bearerAuth' => []]],
        tags: ['SkuOrigins'],
        parameters: [
            new OA\Parameter(name: 'id', in: 'path', required: true, schema: new OA\Schema(type: 'integer')),
        ],
        responses: [
            new OA\Response(
                response: 200,
                description: '删除成功',
                content: new OA\JsonContent(properties: [
                    new OA\Property(property: 'code', type: 'integer', example: 0),
                    new OA\Property(property: 'message', type: 'string', example: '删除成功'),
                ])
            ),
            new OA\Response(response: 404, description: '数据不存在', content: new OA\JsonContent(ref: '#/components/schemas/ErrorResponse')),
            new OA\Response(response: 409, description: '存在映射引用', content: new OA\JsonContent(ref: '#/components/schemas/ErrorResponse')),
        ]
    )]
    #[RequestMapping(path: "{id}", methods: "DELETE")]
    public function destroy(int $id): ResponseInterface|array
    {
        $query = SkuOrigin::query();
        $this->applyDataScope($query);
        $record = $query->where('id', $id)->first();

        if (!$record) {
            return $this->response->json([
                'code' => 404,
                'message' => '数据不存在',
            ])->withStatus(404);
        }

        // 检查映射引用
        if ($this->skuService->hasReferences($id)) {
            return $this->response->json([
                'code' => 409,
                'message' => '该 SKU 存在映射引用，请先删除相关映射记录',
            ])->withStatus(409);
        }

        $sku_value = $record->sku;
        $record->delete();

        $user_id = OperationLogService::getCurrentUserId();
        if ($user_id) {
            OperationLogService::log(
                $user_id,
                'delete',
                'sku_origin',
                $id,
                "删除内部 SKU: {$sku_value}",
                ip: $this->request->getHeaderLine('x-real-ip') ?: null,
            );
        }

        return [
            'code' => 0,
            'message' => '删除成功',
        ];
    }

    /**
     * DataScope 过滤（基于 company_id）
     */
    private function applyDataScope(\Hyperf\Database\Model\Builder $query): void
    {
        $scope_type = $this->request->getAttribute('scope_type');
        $scope_ids = $this->request->getAttribute('scope_ids', []);

        if ($scope_type === 'store') {
            $company_ids = \App\Model\Store::query()
                ->whereIn('id', $scope_ids)
                ->distinct()
                ->pluck('company_id')
                ->toArray();
            $query->whereIn('company_id', $company_ids);
        } elseif ($scope_type === 'platform') {
            $company_ids = \App\Model\Store::query()
                ->whereIn('platform_id', $scope_ids)
                ->distinct()
                ->pluck('company_id')
                ->toArray();
            $query->whereIn('company_id', $company_ids);
        }
    }
}