<?php

namespace app\controller;

use app\service\FeishuService;
use app\util\JwtUtil;
use app\model\User;
use app\model\Company;
use Webman\Http\Request;
use Webman\Http\Response;

class AuthController extends BaseController
{
    /**
     * 用户登录
     */
    public function login(Request $request): Response
    {
        $username = $request->post('username');
        $password = $request->post('password');

        // TODO: 实现真实的登录逻辑
        if (!$username || !$password) {
            return $this->error('用户名或密码不能为空');
        }

        // 模拟用户数据（用于测试）
        $user = User::first();

        if (!$user) {
            return $this->error('用户不存在');
        }

        $token = JwtUtil::encode([
            'user_id' => $user->id,
            'company_id' => $user->company_id,
            'username' => $user->name,
        ]);

        return $this->success([
            'token' => $token,
            'user' => $user,
        ]);
    }

    /**
     * 飞书免登
     */
    public function feishuLogin(Request $request): Response
    {
        $authCode = $request->post('auth_code');
        $tenantKey = $request->post('tenant_key');

        if (!$authCode) {
            return $this->error('缺少授权码');
        }

        try {
            $feishuService = new FeishuService();

            // 根据 tenant_key 获取公司
            $company = $feishuService->getCompanyByTenantKey($tenantKey);

            if (!$company) {
                return $this->error('公司不存在');
            }

            // 设置公司并获取用户信息
            $feishuService->setCompany($company->id);
            $feishuData = $feishuService->getUserInfo($authCode);

            // 创建或更新用户
            $user = $feishuService->createOrUpdateUser($feishuData, $company->id);

            // 生成 JWT Token
            $token = JwtUtil::encode([
                'user_id' => $user->id,
                'company_id' => $user->company_id,
                'feishu_user_id' => $user->feishu_user_id,
                'union_id' => $user->union_id,
            ]);

            return $this->success([
                'token' => $token,
                'user' => $user->load('company'),
            ]);
        } catch (\Exception $e) {
            return $this->error($e->getMessage());
        }
    }

    /**
     * 获取当前用户信息
     */
    public function me(Request $request): Response
    {
        $userId = $this->getUserId($request);

        if (!$userId) {
            return $this->error('未登录', 401);
        }

        $user = User::with('company')->find($userId);

        if (!$user) {
            return $this->error('用户不存在');
        }

        return $this->success($user);
    }

    /**
     * 生成飞书扫码登录二维码
     */
    public function qrcodeLogin(Request $request): Response
    {
        $tenantKey = $request->post('tenant_key');

        if (!$tenantKey) {
            return $this->error('缺少租户密钥');
        }

        try {
            $feishuService = new \app\service\FeishuService();

            // 根据 tenant_key 获取公司
            $company = $feishuService->getCompanyByTenantKey($tenantKey);

            if (!$company) {
                return $this->error('公司不存在');
            }

            $feishuService->setCompany($company->id);

            // 生成登录会话
            $loginSession = \app\model\FeishuLoginSession::create([
                'company_id' => $company->id,
                'tenant_key' => $tenantKey,
                'status' => 'pending',
                'expires_at' => date('Y-m-d H:i:s', time() + 300), // 5分钟过期
            ]);

            // 构建扫码登录 URL（使用官方 passport 端点）
            $appId = 'cli_a8033d607cba500d';
            // 使用固定的 redirect_uri，session_id 通过 state 传递
            $redirectUri = urlencode("https://xsm.dev.hnxinyouhe.com/login/callback");
            $authUrl = "https://passport.feishu.cn/suite/passport/oauth/authorize?client_id={$appId}&redirect_uri={$redirectUri}&response_type=code&state={$loginSession->id}";

            // 生成二维码内容（返回 URL，前端生成二维码）
            return $this->success([
                'session_id' => $loginSession->id,
                'auth_url' => $authUrl,
                'expires_at' => $loginSession->expires_at,
            ]);
        } catch (\Exception $e) {
            return $this->error($e->getMessage());
        }
    }

    /**
     * 轮询扫码登录状态
     */
    public function qrcodeLoginStatus(Request $request): Response
    {
        $sessionId = $request->get('session_id');

        if (!$sessionId) {
            return $this->error('缺少会话ID');
        }

        $session = \app\model\FeishuLoginSession::find($sessionId);

        if (!$session) {
            return $this->error('登录会话不存在');
        }

        // 检查是否过期
        if (strtotime($session->expires_at) < time()) {
            $session->status = 'expired';
            $session->save();
            return $this->error('二维码已过期，请刷新重试');
        }

        // 返回当前状态
        if ($session->status === 'success') {
            // 生成 token
            $user = \app\model\User::find($session->user_id);
            if (!$user) {
                return $this->error('用户不存在');
            }

            $token = \app\util\JwtUtil::encode([
                'user_id' => $user->id,
                'company_id' => $user->company_id,
                'feishu_user_id' => $user->feishu_user_id,
                'union_id' => $user->feishu_union_id,
            ]);

            // 清除会话
            $session->delete();

            return $this->success([
                'status' => 'success',
                'token' => $token,
                'user' => $user->load('company'),
            ]);
        } else if ($session->status === 'expired') {
            return $this->error('二维码已过期，请刷新重试');
        } else {
            // pending 或 scanning
            return $this->success([
                'status' => $session->status,
            ]);
        }
    }

    /**
     * 飞书扫码登录回调（飞书授权后的回调）
     */
    public function qrcodeLoginCallback(Request $request): Response
    {
        // 从 state 参数获取 session_id
        $sessionId = $request->get('state');
        // OAuth 2.0 标准参数是 code
        $authCode = $request->get('code');

        if (!$sessionId) {
            return $this->error('缺少会话ID');
        }

        if (!$authCode) {
            return $this->error('缺少授权码');
        }

        try {
            $session = \app\model\FeishuLoginSession::find($sessionId);

            if (!$session) {
                return $this->error('登录会话不存在');
            }

            // 检查是否过期
            if (strtotime($session->expires_at) < time()) {
                $session->status = 'expired';
                $session->save();
                return $this->error('二维码已过期');
            }

            // 使用 session 的公司信息
            $feishuService = new \app\service\FeishuService();
            $feishuService->setCompany($session->company_id);

            // 获取用户信息
            $feishuData = $feishuService->getUserInfo($authCode);

            // 创建或更新用户
            $user = $feishuService->createOrUpdateUser($feishuData, $session->company_id);

            // 更新会话状态
            $session->status = 'success';
            $session->user_id = $user->id;
            $session->save();

            // 返回空页面，自动关闭（飞书APP内会自动返回）
            return new \Webman\Http\Response(200, ['Content-Type' => 'text/html; charset=utf-8'], '<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <script>
        // 尝试关闭窗口（飞书APP内会自动返回）
        window.close();
        // 备用：如果无法关闭，显示简单提示
        setTimeout(function() {
            document.body.innerHTML = "<div style=\'display:flex;align-items:center;justify-content:center;min-height:100vh;margin:0;font-family:sans-serif;text-align:center;color:#666;\'><p>登录成功<br>您可以关闭此页面</p></div>";
        }, 100);
    </script>
</head>
<body>
</body>
</html>');
        } catch (\Exception $e) {
            return $this->error($e->getMessage());
        }
    }
}