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app.py

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+import gradio as gr
+import json
+import random
+
+from datetime import date
+from datetime import datetime
+from datetime import timedelta
+
+import firebase_admin
+
+from firebase_admin import credentials
+from firebase_admin import firestore
+
+# =========================
+# FIREBASE
+# =========================
+
+cred = credentials.Certificate(
+    "firebase_key.json"
+)
+
+firebase_admin.initialize_app(cred)
+
+db = firestore.client()
+
+# =========================
+# QUIZ DATA
+# =========================
+
+with open(
+    "quiz_data.json",
+    "r",
+    encoding="utf-8"
+) as f:
+
+    quiz_data = json.load(f)
+
+# Daily stable random
+random.seed(str(date.today()))
+
+daily_questions = random.sample(
+    quiz_data,
+    3
+)
+
+# =========================
+# STREAK SYSTEM
+# =========================
+
+def update_streak(username):
+
+    user_ref = db.collection(
+        "users"
+    ).document(username)
+
+    doc = user_ref.get()
+
+    today = date.today()
+
+    if not doc.exists:
+
+        user_ref.set({
+            "streak": 1,
+            "best_streak": 1,
+            "last_completed": str(today)
+        })
+
+        return 1
+
+    data = doc.to_dict()
+
+    last_completed = datetime.strptime(
+        data["last_completed"],
+        "%Y-%m-%d"
+    ).date()
+
+    streak = data["streak"]
+
+    if last_completed == today:
+        return streak
+
+    if last_completed == today - timedelta(days=1):
+        streak += 1
+    else:
+        streak = 1
+
+    best = max(
+        streak,
+        data.get("best_streak", 1)
+    )
+
+    user_ref.update({
+        "streak": streak,
+        "best_streak": best,
+        "last_completed": str(today)
+    })
+
+    return streak
+
+# =========================
+# VOCAB TRACKER
+# =========================
+
+def update_vocab(username, word, correct):
+
+    vocab_ref = (
+        db.collection("users")
+        .document(username)
+        .collection("vocab")
+        .document(word)
+    )
+
+    doc = vocab_ref.get()
+
+    if not doc.exists:
+
+        vocab_ref.set({
+            "correct": 0,
+            "wrong": 0,
+            "mastered": False
+        })
+
+    data = vocab_ref.get().to_dict()
+
+    correct_count = data["correct"]
+    wrong_count = data["wrong"]
+
+    if correct:
+        correct_count += 1
+    else:
+        wrong_count += 1
+
+    mastered = correct_count >= 5
+
+    vocab_ref.set({
+        "correct": correct_count,
+        "wrong": wrong_count,
+        "mastered": mastered
+    })
+
+# =========================
+# QUIZ LOGIC
+# =========================
+
+def grade_quiz(
+    username,
+    q1,
+    q2,
+    q3
+):
+
+    answers = [q1, q2, q3]
+
+    score = 0
+
+    for i, q in enumerate(daily_questions):
+
+        correct = answers[i] == q["answer"]
+
+        if correct:
+            score += 1
+
+        update_vocab(
+            username,
+            q["word"],
+            correct
+        )
+
+    streak = update_streak(username)
+
+    return (
+        f"🔥 Streak: {streak} days\n"
+        f"✅ Score: {score}/3"
+    )
+
+# =========================
+# UI
+# =========================
+
+with gr.Blocks() as demo:
+
+    gr.Markdown(
+        "# 🇷🇺 Russian Learning Hub"
+    )
+
+    gr.Markdown(
+        "## 🔥 Daily Quiz"
+    )
+
+    username = gr.Textbox(
+        label="Username"
+    )
+
+    q_inputs = []
+
+    for q in daily_questions:
+
+        radio = gr.Radio(
+            choices=q["choices"],
+            label=q["question"]
+        )
+
+        q_inputs.append(radio)
+
+    output = gr.Textbox(
+        label="Result"
+    )
+
+    submit_btn = gr.Button(
+        "Submit Quiz"
+    )
+
+    submit_btn.click(
+        grade_quiz,
+        inputs=[username] + q_inputs,
+        outputs=output
+    )
+
+demo.launch(share=True)

firebase_key.json

@@ -0,0 +1,13 @@
+{
+  "type": "service_account",
+  "project_id": "russian-learning-hub",
+  "private_key_id": "bc7d8472526ec94f4d73c04981cd4bffd2e2c5cb",
+  "private_key": "-----BEGIN PRIVATE KEY-----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\nVtAXdZ4lR5WhHlhLN9LqVvI=\n-----END PRIVATE KEY-----\n",
+  "client_email": "firebase-adminsdk-fbsvc@russian-learning-hub.iam.gserviceaccount.com",
+  "client_id": "115016420012463420142",
+  "auth_uri": "https://accounts.google.com/o/oauth2/auth",
+  "token_uri": "https://oauth2.googleapis.com/token",
+  "auth_provider_x509_cert_url": "https://www.googleapis.com/oauth2/v1/certs",
+  "client_x509_cert_url": "https://www.googleapis.com/robot/v1/metadata/x509/firebase-adminsdk-fbsvc%40russian-learning-hub.iam.gserviceaccount.com",
+  "universe_domain": "googleapis.com"
+}

quiz_data.json

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+[
+  {
+    "question": "дом nghĩa là gì?",
+    "choices": ["house", "book", "water"],
+    "answer": "house",
+    "word": "дом"
+  },
+
+  {
+    "question": "книга nghĩa là gì?",
+    "choices": ["book", "car", "food"],
+    "answer": "book",
+    "word": "книга"
+  },
+
+  {
+    "question": "Я ___ книгу",
+    "choices": ["читаю", "читать", "читал"],
+    "answer": "читаю",
+    "word": "читать"
+  },
+
+  {
+    "question": "работа nghĩa là gì?",
+    "choices": ["work", "school", "paper"],
+    "answer": "work",
+    "word": "работа"
+  },
+
+  {
+    "question": "хороший nghĩa là gì?",
+    "choices": ["good", "bad", "fast"],
+    "answer": "good",
+    "word": "хороший"
+  }
+]

requirements.txt

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+gradio
+firebase-admin