<?php

namespace App\Http\Controllers;

use App\Http\Requests\ShopAuthRequest;
use App\Models\ShopAuth;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\DB;
use Illuminate\Support\Facades\Http;
use Illuminate\Support\Str;

class ShopAuthController extends Controller
{
    /**
     * 店铺授权列表
     */
    public function index(Request $request)
    {
        $query = ShopAuth::query()->orderBy('created_at', 'desc');

        // 筛选条件
        if ($request->filled('platform')) {
            $query->where('platform', $request->platform);
        }

        if ($request->filled('shop_name')) {
            $query->where('shop_name', 'like', "%{$request->shop_name}%");
        }

        if ($request->filled('status')) {
            $query->where('status', $request->status);
        }

        $perPage = $request->input('limit', 10);
        $shops = $query->paginate($perPage);

        return response()->json([
            'code' => 200,
            'data' => [
                'list' => $shops->items(),
                'total' => $shops->total(),
                'current_page' => $shops->currentPage(),
                'last_page' => $shops->lastPage(),
            ],
            'message' => 'success'
        ]);
    }

    /**
     * 店铺授权详情
     */
    public function show(string $id)
    {
        $shop = ShopAuth::find($id);

        if (!$shop) {
            return response()->json([
                'code' => 404,
                'message' => '店铺不存在'
            ], 404);
        }

        return response()->json([
            'code' => 200,
            'data' => $shop,
            'message' => 'success'
        ]);
    }

    /**
     * 创建店铺授权
     */
    public function store(ShopAuthRequest $request)
    {
        try {
            DB::beginTransaction();

            $shop = ShopAuth::create([
                'platform' => $request->platform,
                'shop_name' => $request->shop_name,
                'app_key' => $request->app_key,
                'app_secret' => $request->app_secret,
                'session_key' => $request->session_key,
                'access_token' => $request->access_token,
                'refresh_token' => $request->refresh_token,
                'expires_at' => $request->expires_at,
                'status' => 'active',
                'remark' => $request->remark,
            ]);

            DB::commit();

            return response()->json([
                'code' => 200,
                'data' => $shop,
                'message' => '店铺授权创建成功'
            ]);
        } catch (\Exception $e) {
            DB::rollBack();
            return response()->json([
                'code' => 500,
                'message' => '创建失败: ' . $e->getMessage()
            ], 500);
        }
    }

    /**
     * 更新店铺授权
     */
    public function update(ShopAuthRequest $request, string $id)
    {
        $shop = ShopAuth::find($id);

        if (!$shop) {
            return response()->json([
                'code' => 404,
                'message' => '店铺不存在'
            ], 404);
        }

        try {
            DB::beginTransaction();

            $shop->update([
                'shop_name' => $request->shop_name ?? $shop->shop_name,
                'app_key' => $request->app_key ?? $shop->app_key,
                'app_secret' => $request->app_secret ?? $shop->app_secret,
                'session_key' => $request->session_key ?? $shop->session_key,
                'access_token' => $request->access_token ?? $shop->access_token,
                'refresh_token' => $request->refresh_token ?? $shop->refresh_token,
                'expires_at' => $request->expires_at ?? $shop->expires_at,
                'remark' => $request->remark ?? $shop->remark,
            ]);

            DB::commit();

            return response()->json([
                'code' => 200,
                'data' => $shop,
                'message' => '店铺授权更新成功'
            ]);
        } catch (\Exception $e) {
            DB::rollBack();
            return response()->json([
                'code' => 500,
                'message' => '更新失败: ' . $e->getMessage()
            ], 500);
        }
    }

    /**
     * 删除店铺授权
     */
    public function destroy(string $id)
    {
        $shop = ShopAuth::find($id);

        if (!$shop) {
            return response()->json([
                'code' => 404,
                'message' => '店铺不存在'
            ], 404);
        }

        try {
            $shop->delete();

            return response()->json([
                'code' => 200,
                'message' => '店铺授权删除成功'
            ]);
        } catch (\Exception $e) {
            return response()->json([
                'code' => 500,
                'message' => '删除失败: ' . $e->getMessage()
            ], 500);
        }
    }

    /**
     * 刷新Token
     */
    public function refreshToken(string $id)
    {
        $shop = ShopAuth::find($id);

        if (!$shop) {
            return response()->json([
                'code' => 404,
                'message' => '店铺不存在'
            ], 404);
        }

        // TODO: 根据平台调用不同的API刷新Token
        // 这里模拟刷新过程
        try {
            DB::beginTransaction();

            $newToken = 'NEW_' . Str::random(32);
            $newRefreshToken = 'NEW_REFRESH_' . Str::random(32);

            $shop->update([
                'access_token' => $newToken,
                'refresh_token' => $newRefreshToken,
                'expires_at' => now()->addDays(30),
            ]);

            DB::commit();

            return response()->json([
                'code' => 200,
                'data' => [
                    'access_token' => $newToken,
                    'refresh_token' => $newRefreshToken,
                    'expires_at' => $shop->expires_at,
                ],
                'message' => 'Token刷新成功'
            ]);
        } catch (\Exception $e) {
            DB::rollBack();
            return response()->json([
                'code' => 500,
                'message' => '刷新失败: ' . $e->getMessage()
            ], 500);
        }
    }

    /**
     * 测试连接
     */
    public function testConnection(string $id)
    {
        $shop = ShopAuth::find($id);

        if (!$shop) {
            return response()->json([
                'code' => 404,
                'message' => '店铺不存在'
            ], 404);
        }

        // TODO: 根据平台调用不同的API测试连接
        // 这里模拟测试过程
        try {
            // 模拟API调用
            $response = Http::timeout(10)
                ->withHeaders([
                    'Authorization' => 'Bearer ' . $shop->access_token,
                ])
                ->get('https://api.example.com/test');

            if ($response->successful()) {
                return response()->json([
                    'code' => 200,
                    'data' => [
                        'connected' => true,
                        'response_time' => rand(100, 500) . 'ms',
                        'platform_status' => 'online',
                    ],
                    'message' => '连接测试成功'
                ]);
            } else {
                return response()->json([
                    'code' => 400,
                    'data' => [
                        'connected' => false,
                        'error' => 'API返回错误',
                        'status_code' => $response->status(),
                    ],
                    'message' => '连接测试失败'
                ]);
            }
        } catch (\Exception $e) {
            return response()->json([
                'code' => 500,
                'data' => [
                    'connected' => false,
                    'error' => $e->getMessage(),
                ],
                'message' => '连接测试异常'
            ], 500);
        }
    }

    /**
     * 获取平台列表
     */
    public function getPlatforms()
    {
        $platforms = [
            ['value' => 'taobao', 'label' => '淘宝', 'icon' => 'taobao'],
            ['value' => 'tmall', 'label' => '天猫', 'icon' => 'tmall'],
            ['value' => 'jd', 'label' => '京东', 'icon' => 'jd'],
            ['value' => 'pdd', 'label' => '拼多多', 'icon' => 'pdd'],
            ['value' => 'douyin', 'label' => '抖音', 'icon' => 'douyin'],
            ['value' => 'kuaishou', 'label' => '快手', 'icon' => 'kuaishou'],
            ['value' => 'weidian', 'label' => '微店', 'icon' => 'weidian'],
            ['value' => 'youzan', 'label' => '有赞', 'icon' => 'youzan'],
        ];

        return response()->json([
            'code' => 200,
            'data' => $platforms,
            'message' => 'success'
        ]);
    }

    /**
     * 批量操作
     */
    public function batchOperation(Request $request)
    {
        $request->validate([
            'shop_ids' => 'required|array|min:1',
            'shop_ids.*' => 'integer|exists:shop_auths,id',
            'action' => 'required|in:enable,disable,refresh_token,test_connection',
        ]);

        $successCount = 0;
        $failedShops = [];

        try {
            DB::beginTransaction();

            foreach ($request->shop_ids as $shopId) {
                $shop = ShopAuth::find($shopId);

                if (!$shop) {
                    $failedShops[] = ['id' => $shopId, 'reason' => '店铺不存在'];
                    continue;
                }

                switch ($request->action) {
                    case 'enable':
                        $shop->update(['status' => 'active']);
                        break;
                    case 'disable':
                        $shop->update(['status' => 'inactive']);
                        break;
                    case 'refresh_token':
                        // 模拟刷新Token
                        $shop->update([
                            'access_token' => 'REFRESHED_' . Str::random(32),
                            'expires_at' => now()->addDays(30),
                        ]);
                        break;
                    case 'test_connection':
                        // 这里只是标记，实际测试在单独的方法中
                        break;
                }

                $successCount++;
            }

            DB::commit();

            return response()->json([
                'code' => 200,
                'data' => [
                    'success_count' => $successCount,
                    'failed_shops' => $failedShops,
                ],
                'message' => "批量操作成功，成功 {$successCount} 个"
            ]);
        } catch (\Exception $e) {
            DB::rollBack();
            return response()->json([
                'code' => 500,
                'message' => '批量操作失败: ' . $e->getMessage()
            ], 500);
        }
    }
}