From 6e5fb3b86a89d9a47938c247eee9a57cd70b1178 Mon Sep 17 00:00:00 2001
From: sdarbinyan <sdarbinyan@4pay.ru>
Date: Tue, 14 Apr 2026 23:14:26 +0400
Subject: [PATCH] QR login

---
 .../telegram-login.component.ts               | 26 ++++++++++++-
 src/app/interceptors/mock-data.interceptor.ts | 37 +++++++++++++++++++
 src/app/services/auth.service.ts              | 16 ++++++++
 3 files changed, 78 insertions(+), 1 deletion(-)

diff --git a/src/app/components/telegram-login/telegram-login.component.ts b/src/app/components/telegram-login/telegram-login.component.ts
index 20287fe..e716cdd 100644
--- a/src/app/components/telegram-login/telegram-login.component.ts
+++ b/src/app/components/telegram-login/telegram-login.component.ts
@@ -47,7 +47,11 @@ export class TelegramLoginComponent implements OnDestroy {
   openTelegramLogin(): void {
     window.open(this.loginUrl(), '_blank');
     if (!this.pollTimer) {
-      this.startPolling(this.qrToken());
+      if (this.qrToken()) {
+        this.startPolling(this.qrToken());
+      } else {
+        this.startSessionPolling();
+      }
     }
   }
 
@@ -68,10 +72,30 @@ export class TelegramLoginComponent implements OnDestroy {
       error: () => {
         this.loginUrl.set(this.authService.getTelegramLoginUrl());
         this.qrStatus.set('error');
+        this.startSessionPolling();
       }
     });
   }
 
+  private startSessionPolling(): void {
+    this.stopPolling();
+    let checks = 0;
+    this.pollTimer = setInterval(() => {
+      checks++;
+      if (checks > 100) {
+        this.stopPolling();
+        this.qrStatus.set('expired');
+        return;
+      }
+      this.authService.checkSessionOnce().subscribe(session => {
+        if (session && session.active) {
+          this.stopPolling();
+          this.syncCartAndComplete(session.sessionId);
+        }
+      });
+    }, 3000);
+  }
+
   private startPolling(token: string): void {
     this.stopPolling();
     if (!token) return;
diff --git a/src/app/interceptors/mock-data.interceptor.ts b/src/app/interceptors/mock-data.interceptor.ts
index 8575414..83e522d 100644
--- a/src/app/interceptors/mock-data.interceptor.ts
+++ b/src/app/interceptors/mock-data.interceptor.ts
@@ -671,6 +671,9 @@ function respond<T>(body: T, delayMs = 150) {
   return of(new HttpResponse({ status: 200, body })).pipe(delay(delayMs));
 }
 
+// ─── Mock Auth State ───
+let mockQrPollCount = 0;
+
 // ─── The Interceptor ───
 
 export const mockDataInterceptor: HttpInterceptorFn = (req, next) => {
@@ -685,6 +688,40 @@ export const mockDataInterceptor: HttpInterceptorFn = (req, next) => {
     return respond({ message: 'pong (mock)' });
   }
 
+  // ── GET /auth/session
+  if (url.includes('/auth/session') && req.method === 'GET') {
+    return respond({ active: false }, 100);
+  }
+
+  // ── POST /auth/qr/create
+  if (url.includes('/auth/qr/create') && req.method === 'POST') {
+    const token = 'mock-qr-token-' + Date.now();
+    const botUsername = (environment as Record<string, unknown>)['telegramBot'] as string || 'DexarSupport_bot';
+    mockQrPollCount = 0;
+    return respond({
+      token,
+      url: `https://t.me/${botUsername}?start=qr_${token}`
+    }, 200);
+  }
+
+  // ── GET /auth/qr/poll
+  if (url.includes('/auth/qr/poll') && req.method === 'GET') {
+    mockQrPollCount++;
+    // Simulate confirmed after 3 polls (~9 seconds)
+    if (mockQrPollCount >= 3) {
+      return respond({
+        status: 'confirmed',
+        session: {
+          sessionId: 'mock-session-' + Date.now(),
+          active: true,
+          displayName: 'Telegram User',
+          expiresAt: new Date(Date.now() + 3600000).toISOString()
+        }
+      }, 200);
+    }
+    return respond({ status: 'pending' }, 200);
+  }
+
   // ── GET /category (all categories flat list)
   if (url.endsWith('/category') && req.method === 'GET') {
     return respond(MOCK_CATEGORIES);
diff --git a/src/app/services/auth.service.ts b/src/app/services/auth.service.ts
index de5f470..c9b65f3 100644
--- a/src/app/services/auth.service.ts
+++ b/src/app/services/auth.service.ts
@@ -60,6 +60,22 @@ export class AuthService {
     });
   }
 
+  /** Check session without updating internal state (for polling) */
+  checkSessionOnce(): Observable<AuthSession | null> {
+    return this.http.get<AuthSession>(`${this.apiUrl}/auth/session`, {
+      withCredentials: true
+    }).pipe(
+      tap(session => {
+        if (session && session.active) {
+          this.sessionSignal.set(session);
+          this.statusSignal.set('authenticated');
+          this.scheduleSessionRefresh(session.expiresAt);
+        }
+      }),
+      catchError(() => of(null))
+    );
+  }
+
   /**
    * Called after user completes Telegram login.
    * The callback URL from Telegram will hit our backend which sets the cookie.