<?php

namespace App\Service;

use App\BaseApp\BaseNotAuthService;
use App\Models\AdminModel;
use App\Models\LoginLogModel;
use App\Service\common\JWTService;
use App\Service\common\UserAgentService;
use App\Service\common\UtilsService;
use Exception;
use Illuminate\Support\Str;

/**
 * 登录 / 注册服务：成功与失败均写登录日志，成功时更新 last_login_time
 */
class LoginService extends BaseNotAuthService
{
    /**
     * 账号密码登录
     * 失败时先写日志再抛错，保证审计完整；成功始终更新 last_login_time
     *
     * @param string $phone 手机号/账号
     * @param string $password 明文密码
     * @return array 用户信息 + token
     * @throws Exception
     */
    public function login($phone, $password): array
    {
        $ua = UserAgentService::getInstance();
        $equipment = $ua->parseEquipment();
        $browser = $ua->parseBrowser();
        $userModel = AdminModel::with(['role:id,name,value'])->where('phone', $phone)->first();
        if (empty($userModel)) {
            $this->writeLoginLog(0, (string) $phone, '', 1, '用户或密码错误', $equipment, $browser);
            UtilsService::getInstance()->errorThrow('用户或密码错误！');
        }
        if (!password_verify($password, $userModel->password)) {
            $this->writeLoginLog(
                (int) $userModel->id,
                (string) $phone,
                (string) $userModel->nick_name,
                1,
                '用户或密码错误',
                $equipment,
                $browser
            );
            UtilsService::getInstance()->errorThrow('用户或密码错误！');
        }
        $updateData = [
            'last_login_time' => get_time(),
            'updated_at' => get_time(),
        ];
        if ($userModel->ip !== get_ip()) {
            $ipTable = json_decode($userModel->ip_table, true);
            if (!in_array(get_ip(), $ipTable ?? [])) {
                $ipTable[] = get_ip();
            }
            $updateData['ip'] = get_ip();
            $updateData['ip_table'] = json_encode($ipTable);
        }
        $update = AdminModel::where('id', $userModel->id)->update($updateData);
        if (!$update) {
            $this->writeLoginLog(
                (int) $userModel->id,
                (string) $phone,
                (string) $userModel->nick_name,
                1,
                '更新登录信息失败',
                $equipment,
                $browser
            );
            UtilsService::getInstance()->errorThrow('更新失败！');
        }
        $userModel = AdminModel::with(['role:id,name,value'])->where('id', $userModel->id)->first();
        $this->writeLoginLog(
            (int) $userModel->id,
            (string) $userModel->phone,
            (string) $userModel->nick_name,
            0,
            '登录成功',
            $equipment,
            $browser
        );
        $result = [
            'id' => $userModel->id,
            'phone' => $userModel->phone,
            'nick_name' => $userModel->nick_name,
            'avatar' => $userModel->avatar,
            'email' => $userModel->email,
            'role_id' => $userModel->role_id,
            'role_name' => $userModel->role->name,
            'role_value' => $userModel->role->value,
            'ip' => $userModel->ip,
            'ip_table' => $userModel->ip_table,
        ];
        $token = JWTService::getInstance()->generateToken($result);
        $result['token'] = $token;
        return $result;
    }

    /**
     * 注册管理员账号
     *
     * @param string $phone 手机号
     * @param string $password 密码
     * @param string $email 邮箱
     * @param mixed $code 验证码（预留）
     * @return array
     * @throws Exception
     */
    public function register($phone, $password, $email, $code): array
    {
        $userModel = AdminModel::where('phone', $phone)->first();
        if ($userModel) {
            UtilsService::getInstance()->errorThrow('账号已被占用！');
        }
        $createModel = AdminModel::create([
            'phone' => $phone,
            'email' => $email,
            'password' => password_hash($password, PASSWORD_DEFAULT),
            'nick_name' => '新用户' . Str::random(),
            'avatar' => 'https://pic.rmb.bdstatic.com/bjh/80852bfe7c321988191838517ba64e309354.jpeg@h_1280',
            'role_id' => 2,
            'ip' => get_ip(),
            'ip_table' => json_encode([get_ip()]),
            'created_at' => get_time(),
        ]);
        if (!$createModel) {
            UtilsService::getInstance()->errorThrow('注册失败！');
        }
        $userInfo = AdminModel::with(['role:id,name,value'])->where('id', $createModel->id)->first();
        $result = [
            'id' => $userInfo->id,
            'phone' => $userInfo->phone,
            'nick_name' => $userInfo->nick_name,
            'avatar' => $userInfo->avatar,
            'email' => $userInfo->email ?? '',
            'role_name' => $userInfo->role->name,
            'role_value' => $userInfo->role->value,
            'ip' => $userInfo->ip,
            'ip_table' => $userInfo->ip_table,
        ];
        $token = JWTService::getInstance()->generateToken($result);
        $result['token'] = $token;
        return $result;
    }

    /**
     * 写入登录日志（失败也尽量落库，内部吞异常避免掩盖业务错误）
     *
     * @param int $userId 管理员 ID，失败未知用户可为 0
     * @param string $phone 登录账号
     * @param string $nickName 昵称快照
     * @param int $status 0成功 1失败
     * @param string $message 结果说明
     * @param string $equipment 操作系统
     * @param string $browser 浏览器
     */
    private function writeLoginLog(
        int $userId,
        string $phone,
        string $nickName,
        int $status,
        string $message,
        string $equipment,
        string $browser
    ): void {
        try {
            LoginLogModel::insert([
                'user_id' => $userId,
                'phone' => $phone,
                'nick_name' => $nickName,
                'ip' => (string) get_ip(),
                'equipment' => $equipment,
                'browser' => $browser,
                'status' => $status,
                'message' => $message,
                'created_at' => time(),
            ]);
        } catch (\Throwable $e) {
            // 日志失败不影响登录主流程
        }
    }
}