Create app.py

app.py

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+import streamlit as st
+import genanki
+import uuid
+import base64
+import fitz  # PyMuPDF
+from youtube_transcript_api import YouTubeTranscriptApi
+from PIL import Image
+import io
+
+# === CONFIG ===
+st.set_page_config(page_title="FlashCardX", layout="wide")
+
+# === THEME TOGGLE ===
+if 'dark_mode' not in st.session_state:
+    st.session_state.dark_mode = False
+
+def toggle_theme():
+    st.session_state.dark_mode = not st.session_state.dark_mode
+
+theme_btn = "🌙 Dark Mode" if not st.session_state.dark_mode else "☀️ Light Mode"
+st.sidebar.button(theme_btn, on_click=toggle_theme)
+
+bg_color = "#1e1e1e" if st.session_state.dark_mode else "#ffffff"
+txt_color = "#f1f1f1" if st.session_state.dark_mode else "#000000"
+st.markdown(f"""<style>.stApp {{ background-color: {bg_color}; color: {txt_color}; }}</style>""", unsafe_allow_html=True)
+
+# === STATE ===
+if 'deck' not in st.session_state:
+    st.session_state.deck = []
+
+# === HEADER ===
+st.title("🧠 FlashCardX — Flashka Clone (Offline, Free)")
+
+# === MANUAL Q/A FLASHCARD ENTRY ===
+st.header("➕ Add Flashcard (Manual)")
+q = st.text_area("Question")
+a = st.text_area("Answer")
+if st.button("Add Flashcard"):
+    if q.strip() and a.strip():
+        st.session_state.deck.append({'type': 'basic', 'q': q.strip(), 'a': a.strip()})
+        st.success("Card added.")
+    else:
+        st.warning("Both fields are required.")
+
+# === MCQ FLASHCARDS ===
+st.header("📝 Add MCQ Card")
+mcq_q = st.text_input("MCQ Question")
+opt1 = st.text_input("Option A")
+opt2 = st.text_input("Option B")
+opt3 = st.text_input("Option C")
+opt4 = st.text_input("Option D")
+mcq_ans = st.selectbox("Correct Answer", ["A", "B", "C", "D"])
+if st.button("Add MCQ"):
+    if all([mcq_q, opt1, opt2, opt3, opt4]):
+        st.session_state.deck.append({
+            'type': 'mcq',
+            'q': mcq_q,
+            'options': [opt1, opt2, opt3, opt4],
+            'a': mcq_ans
+        })
+        st.success("MCQ added.")
+    else:
+        st.warning("All options must be filled.")
+
+# === PDF UPLOAD TO FLASHCARDS ===
+st.header("📄 Upload PDF to Generate Flashcards")
+pdf_file = st.file_uploader("Upload PDF", type=['pdf'])
+if pdf_file:
+    doc = fitz.open(stream=pdf_file.read(), filetype="pdf")
+    for page in doc:
+        text = page.get_text()
+        lines = [l.strip() for l in text.split('\n') if l.strip()]
+        for i in range(0, len(lines) - 1, 2):
+            st.session_state.deck.append({'type': 'basic', 'q': lines[i], 'a': lines[i + 1]})
+    st.success("PDF parsed and flashcards added.")
+
+# === YOUTUBE TO FLASHCARDS ===
+st.header("🎥 YouTube → Flashcards")
+yt_url = st.text_input("YouTube video link")
+if st.button("Extract Transcript Cards"):
+    try:
+        video_id = yt_url.split("v=")[-1].split("&")[0]
+        transcript = YouTubeTranscriptApi.get_transcript(video_id)
+        for item in transcript[:10]:  # limit to 10 cards
+            text = item['text']
+            st.session_state.deck.append({'type': 'basic', 'q': f"What is said here?", 'a': text})
+        st.success("Transcript converted to flashcards.")
+    except Exception as e:
+        st.error(f"Error: {e}")
+
+# === IMAGE OCCLUSION ===
+st.header("🖼️ Image Occlusion Flashcard")
+img_file = st.file_uploader("Upload Image", type=['png', 'jpg', 'jpeg'])
+if img_file:
+    image = Image.open(img_file)
+    st.image(image, caption="Original Image")
+    label = st.text_input("Describe hidden info")
+    if st.button("Add Image Occlusion Card"):
+        img_bytes = io.BytesIO()
+        image.save(img_bytes, format='PNG')
+        b64_img = base64.b64encode(img_bytes.getvalue()).decode()
+        q = f'<img src="data:image/png;base64,{b64_img}"><br><b>What is hidden?</b>'
+        a = label
+        st.session_state.deck.append({'type': 'basic', 'q': q, 'a': a})
+        st.success("Image occlusion card added.")
+
+# === SEARCH ===
+st.header("🔍 Search Deck")
+search_term = st.text_input("Enter keyword to filter")
+filtered_deck = [c for c in st.session_state.deck if search_term.lower() in c['q'].lower()]
+
+# === DECK VIEW ===
+st.header("📚 Flashcard Deck Viewer")
+if filtered_deck:
+    for i, card in enumerate(filtered_deck):
+        with st.expander(f"Card {i+1}"):
+            if card['type'] == 'basic':
+                st.markdown(f"**Q:** {card['q']}", unsafe_allow_html=True)
+                st.markdown(f"**A:** {card['a']}", unsafe_allow_html=True)
+            elif card['type'] == 'mcq':
+                st.markdown(f"**Q:** {card['q']}")
+                for idx, opt in zip(['A', 'B', 'C', 'D'], card['options']):
+                    st.markdown(f"- {idx}. {opt}")
+                st.markdown(f"**Answer:** {card['a']}")
+            if st.button(f"🗑️ Delete", key=f"del_{i}"):
+                st.session_state.deck.remove(card)
+                st.experimental_rerun()
+else:
+    st.info("No matching flashcards.")
+
+# === GAMIFIED REVIEW ===
+st.header("🎮 Gamified Review")
+if st.button("Start Review"):
+    for card in st.session_state.deck:
+        if card['type'] == 'basic':
+            st.info(f"Q: {card['q']}")
+            st.text_input("Your Answer")
+            st.markdown(f"**Correct:** {card['a']}")
+        elif card['type'] == 'mcq':
+            st.info(card['q'])
+            choice = st.radio("Choose", ["A", "B", "C", "D"], key=uuid.uuid4())
+            st.markdown(f"**Answer:** {card['a']}")
+
+# === EXPORT TO ANKI ===
+st.sidebar.header("📥 Export to Anki")
+deck_name = st.sidebar.text_input("Deck Name", value="MyFlashDeck")
+if st.sidebar.button("Download .apkg"):
+    model_id = int(uuid.uuid4()) >> 64
+    model = genanki.Model(
+        model_id,
+        'FlashCardX Model',
+        fields=[{'name': 'Question'}, {'name': 'Answer'}],
+        templates=[{
+            'name': 'Card Template',
+            'qfmt': '{{Question}}',
+            'afmt': '{{FrontSide}}<hr>{{Answer}}',
+        }],
+    )
+    my_deck = genanki.Deck(int(uuid.uuid4()) >> 64, deck_name)
+    for card in st.session_state.deck:
+        if card['type'] == 'basic':
+            my_deck.add_note(genanki.Note(model=model, fields=[card['q'], card['a']]))
+        elif card['type'] == 'mcq':
+            opts = "\n".join([f"{i}. {opt}" for i, opt in zip("ABCD", card['options'])])
+            q = f"{card['q']}\n\n{opts}"
+            a = f"Correct Answer: {card['a']}"
+            my_deck.add_note(genanki.Note(model=model, fields=[q, a]))
+    pkg = genanki.Package(my_deck)
+    fname = f"{deck_name.replace(' ', '_')}.apkg"
+    pkg.write_to_file(fname)
+    with open(fname, "rb") as f:
+        b64 = base64.b64encode(f.read()).decode()
+        href = f'<a href="data:application/octet-stream;base64,{b64}" download="{fname}">📦 Download {fname}</a>'
+        st.sidebar.markdown(href, unsafe_allow_html=True)
+
+# === FOOTER ===
+st.markdown("---")
+st.caption("🧠 FlashCardX · A clean Flashka-style clone · Powered by Streamlit")