Update app.py

app.py

@@ -1,36 +1,14 @@
-
 import os
 import gradio as gr
 import requests
 import json
 
-# =======================
-# Hugging Face Token
-# =======================
 HF_TOKEN = os.getenv("HF_TOKEN")
-if not HF_TOKEN:
-    print("Error: HF_TOKEN not set.")
-else:
-    print("HF_TOKEN loaded successfully.")
-
-# =======================
-# Memory
-# =======================
 MEMORY_FILE = "memory.json"
 
-def load_memory():
-    if os.path.exists(MEMORY_FILE):
-        with open(MEMORY_FILE, "r") as f:
-            return json.load(f)
-    return []
-
-def save_memory(memory):
-    with open(MEMORY_FILE, "w") as f:
-        json.dump(memory, f)
-
-# =======================
-# Web search function
-# =======================
+# ----------------
+# Web search
+# ----------------
 def search_web(query):
     try:
         url = "https://api.duckduckgo.com/"
@@ -40,175 +18,133 @@ def search_web(query):
         if data.get("AbstractText"):
             return data["AbstractText"]
         elif data.get("RelatedTopics"):
-            topics = [t.get("Text", "") for t in data.get("RelatedTopics", []) if "Text" in t]
+            topics = [t.get("Text", "") for t in data["RelatedTopics"] if "Text" in t]
             return " ".join(topics[:3])
         else:
             return "No useful information found."
     except Exception as e:
         return f"Search error: {e}"
 
-# =======================
+# ----------------
+# Memory
+# ----------------
+def load_memory():
+    if os.path.exists(MEMORY_FILE):
+        with open(MEMORY_FILE, "r") as f:
+            return json.load(f)
+    return []
+
+def save_memory(memory):
+    with open(MEMORY_FILE, "w") as f:
+        json.dump(memory, f)
+
+memory = load_memory()
+
+# ----------------
 # Chat function
-# =======================
+# ----------------
 def chat_with_model(message, history, context, file_input=None):
-    if history is None:
+    if not isinstance(history, list):
         history = []
 
     if message.lower().startswith("search "):
         query = message[7:]
-        search_result = search_web(query)
+        result = search_web(query)
         history.append({"role": "user", "content": message})
-        history.append({"role": "assistant", "content": f"🔎 Here's what I found online:\n\n{search_result}"})
+        history.append({"role": "assistant", "content": f"🔎 {result}"})
         save_memory(history)
         return history, history
 
     if file_input:
-        message += f"\n\n📎 (User uploaded a file named '{file_input.name}')"
+        message += f"\n\n📎 Uploaded file: {file_input.name}"
 
-    # Add user message
-    history.append({"role": "user", "content": message})
+    conversation = [
+        {"role": "system", "content": (
+            "You are EduAI, a multilingual educational AI assistant created by a Sri Lankan student named Wafa Fazly. "
+            "Explain clearly, step-by-step, with Markdown and LaTeX for math."
+        )}
+    ]
 
-    # Build conversation for API
-    conversation = [{"role": m["role"], "content": m["content"]} for m in history]
+    for msg_obj in history[-5:]:
+        conversation.append(msg_obj)
+
+    conversation.append({"role": "user", "content": message})
 
     try:
         response = requests.post(
             "https://router.huggingface.co/v1/chat/completions",
-            headers={
-                "Authorization": f"Bearer {HF_TOKEN}",
-                "Content-Type": "application/json"
-            },
-            json={
-                "model": "deepseek-ai/DeepSeek-V3.2-Exp:novita",
-                "messages": conversation
-            }
+            headers={"Authorization": f"Bearer {HF_TOKEN}", "Content-Type": "application/json"},
+            json={"model": "deepseek-ai/DeepSeek-V3.2-Exp:novita", "messages": conversation}
         )
-        if response.status_code != 200:
-            raise Exception(f"API Error: {response.status_code} - {response.text}")
-
-        reply = response.json()["choices"][0]["message"]["content"]
-        # Format math nicely
-        reply = reply.replace("Step", "\n\n**Step").replace(":", ":**").replace("\\[", "\n\n\\[").replace("\\]", "\\]\n\n")
+        data = response.json()
+        reply = data["choices"][0]["message"]["content"]
 
-        # Add assistant reply
+        reply = reply.replace("Step", "\n\n**Step").replace(":", ":**")
+        history.append({"role": "user", "content": message})
         history.append({"role": "assistant", "content": reply})
         save_memory(history)
         return history, history
 
     except Exception as e:
-        print("Backend Error:", e)
-        error_msg = "😅 EduAI is having trouble connecting. Check HF_TOKEN or try again later!"
-        history.append({"role": "assistant", "content": error_msg})
+        history.append({"role": "user", "content": message})
+        history.append({"role": "assistant", "content": "😅 EduAI is having trouble connecting."})
         return history, history
 
-# =======================
-# Sidebar context update
-# =======================
+# ----------------
+# Sidebar helpers
+# ----------------
 def update_context(choice):
-    if choice is None:
-        return "📘 **You are in General Mode.** Ask EduAI anything about your studies!"
-    return f"📘 **You selected {choice} mode.** Ask anything related to this topic!"
+    if not choice:
+        return "📘 **General Mode.** Ask EduAI anything!"
+    return f"📘 **{choice} mode selected.**"
 
-# =======================
-# Clear memory
-# =======================
 def clear_memory():
     if os.path.exists(MEMORY_FILE):
         os.remove(MEMORY_FILE)
-    return [], "🧹 Chat memory cleared! Start fresh."
-
-# =======================
-# Custom CSS
-# =======================
-custom_css = """
-@import url('https://fonts.googleapis.com/css2?family=Roboto:wght@400;500;700&display=swap');
-body { font-family:'Roboto', sans-serif; background:#1e1e1e; color:#e0e0e0; min-height:100vh; }
-.header-title { font-size:36px; text-align:center; margin-bottom:20px; color:#007BFF; font-weight:700; text-shadow:0 0 10px rgba(0,123,255,0.5); }
-.sidebar { background:#2a2a2a; padding:20px; border-radius:12px; box-shadow:0 4px 12px rgba(0,0,0,0.5); border:1px solid #333; }
-.menu-title { font-size:20px; font-weight:500; margin-bottom:15px; color:#007BFF; }
-.accordion { background:#2a2a2a; border-radius:12px; padding:10px; margin-bottom:10px; box-shadow:0 3px 8px rgba(0,0,0,0.5); }
-.accordion-header { background:#333; color:#e0e0e0; border-radius:10px; padding:12px; font-weight:500; cursor:pointer; transition:0.3s; }
-.accordion-header:hover { background:#007BFF; color:#1e1e1e; }
-.main-chat { padding:20px; background:#1e1e1e; }
-.context-box { background:#2a2a2a; padding:15px; border-radius:10px; box-shadow:0 2px 6px rgba(0,0,0,0.3); margin-bottom:15px; border:1px solid #333; color:#e0e0e0; }
-.chatbox .message.user { background:#007BFF; color:#fff; border-radius:20px; padding:12px 18px; margin:8px 0; }
-.chatbox .message.bot { background:#333; color:#e0e0e0; border-radius:20px; padding:12px 18px; margin:8px 0; }
-.input-row { display:flex; gap:10px; margin-top:10px; }
-.chat-input { flex:1; border-radius:12px; padding:12px; border:1px solid #555; background:#2a2a2a; color:#e0e0e0; }
-.chat-input:focus { border-color:#007BFF; outline:none; }
-.btn-send { background:#7c3aed; color:#fff; border-radius:12px; padding:12px 18px; border:none; cursor:pointer; transition:0.3s; }
-.btn-send:hover { background:#5b21b6; }
-.file-upload { width:50px; height:50px; border:1px solid #555; border-radius:12px; background:#2a2a2a; display:flex; align-items:center; justify-content:center; cursor:pointer; font-size:20px; color:#e0e0e0; transition:0.3s; }
-.file-upload:hover { background:#007BFF; color:#1e1e1e; }
-.btn-clear { background:#f44336; color:white; border-radius:12px; padding:10px 15px; border:none; cursor:pointer; transition:0.3s; }
-.btn-clear:hover { background:#d32f2f; }
-.about-text { font-size:14px; color:#aaa; line-height:1.5; }
-.radio label { color:#e0e0e0; margin:8px 0; }
-"""
-
-# =======================
+    return [], "🧹 Chat memory cleared."
+
+# ----------------
 # Gradio UI
-# =======================
-with gr.Blocks(theme=gr.themes.Base(), css=custom_css) as iface:
-    gr.Markdown("# 🎓 **EduAI — Professional Study Companion**", elem_classes="header-title")
+# ----------------
+with gr.Blocks(theme=gr.themes.Soft(primary_hue="violet")) as iface:
+    gr.Markdown("# 🎓 EduAI — Professional Study Companion")
 
     with gr.Row():
         # Sidebar
-        with gr.Column(scale=1, min_width=250, elem_classes="sidebar"):
-            gr.Markdown("### 🧭 **Main Menu**", elem_classes="menu-title")
+        with gr.Column(scale=1, min_width=250):
+            gr.Markdown("### 🧭 Main Menu")
 
             with gr.Accordion("📚 Subject Tutor", open=False):
-                subj = gr.Radio(
-                    ["Science 🧪", "ICT 💻", "English 📘", "Mathematics ➗"], 
-                    label="Choose a subject", type="index"
-                )
+                subj = gr.Radio(["Science 🧪", "ICT 💻", "English 📘", "Math ➗"], label="Subject")
 
             with gr.Accordion("🗓 Study Planner", open=False):
-                planner = gr.Radio(
-                    ["View Plan 📅", "Add Task ✏️", "Study Tips 💡"], 
-                    label="Planner Options", type="index"
-                )
+                planner = gr.Radio(["View Plan 📅", "Add Task ✏️", "Study Tips 💡"], label="Planner")
 
             with gr.Accordion("🌐 Languages", open=False):
-                lang = gr.Radio(
-                    ["Learn Sinhala 🇱🇰","Learn Tamil 🇮🇳","Learn English 🇬🇧","Learn Spanish 🇪🇸"], 
-                    label="Language Options", type="index"
-                )
+                lang = gr.Radio(["Sinhala 🇱🇰", "Tamil 🇮🇳", "English 🇬🇧", "Spanish 🇪🇸"], label="Language")
 
             with gr.Accordion("⚙️ Settings", open=False):
-                clear_btn = gr.Button("🧹 Clear Memory", elem_classes="btn-clear")
-
-            with gr.Accordion("👩���🎓 About", open=False):
-                gr.Markdown(
-                    "EduAI – developed by **Wafa Fazly** using a pre-trained AI model. Helps learners understand **Science, ICT, English, and more**.",
-                    elem_classes="about-text"
-                )
-
-        # Main Chat Area
-        with gr.Column(scale=4, elem_classes="main-chat"):
-            context_display = gr.Markdown(
-                "📘 **You are in General Mode.** Ask EduAI anything about your studies!",
-                elem_classes="context-box"
-            )
+                clear_btn = gr.Button("🧹 Clear Memory")
+
+        # Chat area
+        with gr.Column(scale=4):
+            context_display = gr.Markdown("📘 **General Mode.** Ask EduAI anything!")
 
             chatbot = gr.Chatbot(
                 label="EduAI Chat",
-                height=500,
-                               render_markdown=True,
+                height=450,
                 type="messages",
+                render_markdown=True,
                 latex_delimiters=[{"left": "$$", "right": "$$", "display": True},
                                   {"left": "\\[", "right": "\\]", "display": True}]
             )
 
-            # Input row
-            with gr.Row(elem_classes="input-row"):
-                msg = gr.Textbox(label="Ask EduAI:", placeholder="Type your question here...", elem_classes="chat-input", show_label=False)
-                file_input = gr.File(label="📎", file_types=[".pdf", ".docx", ".png", ".jpg"], elem_classes="file-upload", show_label=False)
-                send_btn = gr.Button("✈️", elem_classes="btn-send")
+            with gr.Row():
+                msg = gr.Textbox(placeholder="Type your question here...", show_label=False)
+                file_input = gr.File(file_types=[".pdf", ".docx", ".png", ".jpg"], show_label=False)
+                send_btn = gr.Button("✈️")
 
-    # =======================
-    # Event handlers
-    # =======================
+    # Events
     subj.change(update_context, inputs=subj, outputs=context_display)
     planner.change(update_context, inputs=planner, outputs=context_display)
     lang.change(update_context, inputs=lang, outputs=context_display)
@@ -216,5 +152,4 @@ with gr.Blocks(theme=gr.themes.Base(), css=custom_css) as iface:
     msg.submit(chat_with_model, inputs=[msg, chatbot, context_display, file_input], outputs=[chatbot, chatbot])
     clear_btn.click(clear_memory, outputs=[chatbot, context_display])
 
-# Launch the app
 iface.launch()