<?php

namespace App\Http\Controllers\Admin;

use App\Exceptions\CustomException;
use App\Exports\AdminVipListExport;
use App\Exports\AdminVipListImportTemplateExport;
use App\Imports\AdminVipListImport;
use App\Models\AdminUsers;
use App\Models\AdminVipList;
use App\Services\AdminVipListService;
use App\Services\ApiResponseService;
use Exception;
use Illuminate\Http\JsonResponse;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Storage;
use Illuminate\Support\Facades\Validator;
use Illuminate\Validation\ValidationException;
use Maatwebsite\Excel\Facades\Excel;
use Symfony\Component\HttpFoundation\BinaryFileResponse;

class VipListController extends BaseController
{
    /**
     * @var ApiResponseService
     */
    protected ApiResponseService $responseService;

    /**
     * @var AdminVipListService
     */
    protected AdminVipListService $vipListService;

    /**
     * @param ApiResponseService  $responseService
     * @param AdminVipListService $vipListService
     */
    public function __construct(
        ApiResponseService $responseService,
        AdminVipListService $vipListService
    ) {
        $this->responseService = $responseService;
        $this->vipListService = $vipListService;
    }

    /**
     * @param Request $request
     * @return JsonResponse
     */
    public function index(Request $request): JsonResponse
    {
        try {
            $query = AdminVipList::query();

            if ($request->has('license')) {
                $license = $request->input('license');
                $query->where('license', 'like', "%{$license}%");
            }
            // 分页
            $page = $request->input('page', 1);
            $perPage = $request->input('per_page', 10);

            $total = $query->count();
            $items = $query->latest()->forPage($page, $perPage)->get()->each(
                function ($item) {
                    $item['username'] = AdminUsers::getUsername(
                        $item['user_id']
                    );
                    return $item;
                }
            );

            return $this->responseService->success([
                'items'     => $items,
                'total'     => $total,
                'page'      => $page,
                'per_page'  => $perPage,
                'last_page' => ceil($total / $perPage),
            ]);
        } catch (Exception $e) {
            $m_prefix = __('exception.get_user_info_list_failed');
            return $this->responseService->systemError(
                $m_prefix . '：' . $e->getMessage()
            );
        }
    }

    /**
     * @param Request $request
     * @param string  $id
     * @return JsonResponse
     * @throws CustomException
     * @throws ValidationException
     */
    public function update(Request $request, string $id): JsonResponse
    {
        try {
            $this->saveValidator($request->all(), $id);
            $this->vipListService->updateModel($request->all(), $id);
            return $this->responseService->success(
                null,
                __('admin.update_succeeded')
            );
        } catch (ValidationException|CustomException $e) {
            throw $e;
        } catch (Exception $e) {
            return $this->responseService->systemError(
                __('exception.admin_vip_list.update_failed') . '：'
                . $e->getMessage()
            );
        }
    }

    /**
     * @param array $data
     * @param int   $id
     * @return void
     * @throws ValidationException
     */
    protected function saveValidator(array $data, int $id = 0): void
    {
        $rules = [
            'license' => 'required|max:20'
        ];
        $messages = [
            'license.required' => __('validation.admin_list_vip.l_empty'),
            'license.max'      => __('validation.admin_list_vip.l_max')
        ];
        if ($id) {
            $this->validateId($id, AdminVipList::class);
        }
        $validator = Validator::make($data, $rules, $messages);

        if ($validator->fails()) {
            throw new ValidationException($validator);
        }
    }

    /**
     * @param string $id
     * @return JsonResponse
     * @throws CustomException
     * @throws ValidationException
     */
    public function destroy(string $id): JsonResponse
    {
        try {
            $this->validateId($id, AdminVipList::class);
            $this->vipListService->deleteModel($id);
            return $this->responseService->success(
                null,
                __('admin.delete_succeeded')
            );
        } catch (ValidationException|CustomException $e) {
            throw $e;
        } catch (Exception $e) {
            return $this->responseService->systemError(
                __('exception.admin_vip_list.destroy_failed') . '：'
                . $e->getMessage()
            );
        }
    }

    /**
     * @param Request $request
     * @return JsonResponse
     * @throws ValidationException
     */
    public function import(Request $request): JsonResponse
    {
        try {
            // 1. 验证上传的文件
            $request->validate([
                'file' => 'required|mimes:xlsx,xls,csv|max:2048' // 限制文件类型和大小
            ]);
            $validator = Validator::make($request->file('file'), [
                'file' => 'required|mimes:xlsx,xls,csv|max:2048'
            ], [
                'file.required' => __('validation.admin_list_vip.file_empty'),
                'file.mimes'    => __('validation.admin_list_vip.file_mimes'),
                'file.max'      => __('validation.admin_list_vip.file_max'),
            ]);
            if ($validator->fails()) {
                throw new ValidationException($validator);
            }

            // 2. 获取上传的文件
            $file = $request->file('file');

            // 3. 正确的做法：先存储文件，再获取绝对路径进行导入
            // 将文件存储到 storage/app/imports 目录下
            $path = $file->store('imports');

            // 4. 执行导入（使用存储后的绝对路径）
            // storage_path('app') 获取 storage/app 的绝对路径
            Excel::import(
                new AdminVipListImport(),
                storage_path('app/' . $path)
            );

            // 5. （可选）导入完成后删除临时文件
            Storage::delete($path);

            return $this->responseService->systemError(
                __('controller.import.success')
            );
        } catch (ValidationException $e) {
            throw $e;
        } catch (Exception $e) {
            return $this->responseService->systemError(
                __('exception.admin_vip_list.import_failed') . '：'
                . $e->getMessage()
            );
        }
    }

    /**
     * @param Request $request
     * @return JsonResponse
     * @throws CustomException
     * @throws ValidationException
     */
    public function store(Request $request): JsonResponse
    {
        try {
            $this->saveValidator($request->all());
            $this->vipListService->createModel($request->all());

            return $this->responseService->success(
                null,
                __('admin.save_succeeded')
            );
        } catch (ValidationException|CustomException $e) {
            throw $e;
        } catch (Exception $e) {
            return $this->responseService->systemError(
                __('exception.admin_vip_list.create_failed') . '：'
                . $e->getMessage()
            );
        }
    }

    /**
     * @return BinaryFileResponse
     */
    public function importTemplate(): BinaryFileResponse
    {
        return Excel::download(
            new AdminVipListImportTemplateExport(),
            __('exports.vip_list.import_template') . '.xlsx'
        );
    }

    /**
     * @return BinaryFileResponse
     */
    public function export(): BinaryFileResponse
    {
        return Excel::download(
            new AdminVipListExport(),
            __('exports.vip_list.list') . '.xlsx'
        );
    }
}