<?php

declare(strict_types=1);

namespace App\Http\Controllers\Api\Admin;

use App\Constants\ErrorCode;
use App\Http\Controllers\Controller;
use App\Models\Admin;
use App\Services\LogService;
use Illuminate\Http\JsonResponse;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Auth;
use Illuminate\Support\Facades\Hash;
use Illuminate\Support\Facades\Log;
use Illuminate\Validation\ValidationException;

class AuthController extends Controller
{
    /**
     * @var LogService
     */
    private readonly LogService $logService;

    public function __construct(LogService $logService)
    {
        $this->logService = $logService;
    }

    /**
     * 管理员登录
     *
     * @param Request $request
     * @return JsonResponse
     * @throws ValidationException
     */
    public function login(Request $request): JsonResponse
    {
        try {
            /** @var array{email: string, password: string} $validated */
            $validated = $request->validate([
                'email' => 'required|email',
                'password' => 'required|string',
            ]);

            // 添加請求日誌
            Log::info('Login attempt details', [
                'email' => $validated['email'],
                'request_data' => $request->all()
            ]);

            /** @var Admin|null $admin */
            $admin = Admin::where('email', $validated['email'])->first();

            // 添加用戶查詢日誌
            Log::info('Admin query result', [
                'admin_found' => $admin ? 'yes' : 'no',
                'admin_data' => $admin ? [
                    'id' => $admin->id,
                    'email' => $admin->email,
                    'role' => $admin->role
                ] : null
            ]);

            if (!$admin || !Hash::check($validated['password'], $admin->password)) {
                // 添加密碼驗證日誌
                Log::info('Password verification failed', [
                    'has_admin' => $admin ? 'yes' : 'no',
                    'password_check' => $admin ? Hash::check($validated['password'], $admin->password) : 'admin not found'
                ]);

                return $this->error(
                    ErrorCode::INVALID_CREDENTIALS,
                    ErrorCode::getMessage(ErrorCode::INVALID_CREDENTIALS)
                );
            }

            /** @var string $token */
            $token = $admin->createToken('admin-token')->plainTextToken;

            $this->logService->logOperation(
                'admin',
                $admin->id,
                'Admin logged in'
            );

            return $this->success([
                'token' => $token,
                'admin' => [
                    'id' => $admin->id,
                    'email' => $admin->email,
                ],
            ]);

        } catch (ValidationException $e) {
            Log::error('Validation error during login', [
                'errors' => $e->errors(),
            ]);
            return $this->error(
                ErrorCode::VALIDATION_ERROR,
                ErrorCode::getMessage(ErrorCode::VALIDATION_ERROR),
                $e->errors()
            );
        } catch (\Exception $e) {
            Log::error('Error during admin login', [
                'error' => $e->getMessage(),
                'trace' => $e->getTraceAsString(),
                'file' => $e->getFile(),
                'line' => $e->getLine()
            ]);

            return $this->error(
                ErrorCode::SERVER_ERROR,
                ErrorCode::getMessage(ErrorCode::SERVER_ERROR)
            );
        }
    }

    /**
     * 管理员登出
     *
     * @param Request $request
     * @return JsonResponse
     */
    public function logout(Request $request): JsonResponse
    {
        try {
            /** @var Admin|null $admin */
            $admin = $request->user();

            if (!$admin) {
                return $this->error(
                    ErrorCode::UNAUTHORIZED,
                    '未登錄或會話已過期。'
                );
            }

            $admin->currentAccessToken()->delete();

            $this->logService->logOperation(
                'admin',
                $admin->id,
                'Admin logged out'
            );

            return $this->success(null, '已成功登出。');

        } catch (\Exception $e) {
            Log::error('Error during admin logout', [
                'error' => $e->getMessage(),
                'trace' => $e->getTraceAsString(),
                'admin_id' => $request->user()?->id,
            ]);

            return $this->error(
                ErrorCode::SERVER_ERROR,
                ErrorCode::getMessage(ErrorCode::SERVER_ERROR)
            );
        }
    }

    /**
     * 修改管理员密码
     *
     * @param Request $request
     * @return JsonResponse
     * @throws ValidationException
     */
    public function changePassword(Request $request): JsonResponse
    {
        try {
            /** @var Admin|null $admin */
            $admin = $request->user();

            if (!$admin) {
                return $this->error(
                    ErrorCode::UNAUTHORIZED,
                    '未登錄或會話已過期。'
                );
            }

            /** @var array{current_password: string, new_password: string} $validated */
            $validated = $request->validate([
                'current_password' => 'required|string',
                'new_password' => 'required|string|min:8|confirmed',
            ]);

            if (!Hash::check($validated['current_password'], $admin->password)) {
                return $this->error(
                    ErrorCode::INVALID_CREDENTIALS,
                    '当前密码错误。'
                );
            }

            $admin->password = Hash::make($validated['new_password']);
            $admin->save();

            $this->logService->logOperation(
                'admin',
                $admin->id,
                'Admin changed password'
            );

            return $this->success(null, '密码修改成功。');

        } catch (ValidationException $e) {
            return $this->error(
                ErrorCode::VALIDATION_ERROR,
                ErrorCode::getMessage(ErrorCode::VALIDATION_ERROR),
                $e->errors()
            );
        } catch (\Exception $e) {
            Log::error('Error changing admin password', [
                'error' => $e->getMessage(),
                'trace' => $e->getTraceAsString(),
                'admin_id' => $request->user()?->id,
            ]);

            return $this->error(
                ErrorCode::SERVER_ERROR,
                ErrorCode::getMessage(ErrorCode::SERVER_ERROR)
            );
        }
    }
}