Update src/streamlit_app.py

src/streamlit_app.py

@@ -1,40 +1,71 @@
-import altair as alt
-import numpy as np
-import pandas as pd
 import streamlit as st
+import requests
 
-"""
-# Welcome to Streamlit!
-
-Edit `/streamlit_app.py` to customize this app to your heart's desire :heart:.
-If you have any questions, checkout our [documentation](https://docs.streamlit.io) and [community
-forums](https://discuss.streamlit.io).
-
-In the meantime, below is an example of what you can do with just a few lines of code:
-"""
-
-num_points = st.slider("Number of points in spiral", 1, 10000, 1100)
-num_turns = st.slider("Number of turns in spiral", 1, 300, 31)
-
-indices = np.linspace(0, 1, num_points)
-theta = 2 * np.pi * num_turns * indices
-radius = indices
-
-x = radius * np.cos(theta)
-y = radius * np.sin(theta)
-
-df = pd.DataFrame({
-    "x": x,
-    "y": y,
-    "idx": indices,
-    "rand": np.random.randn(num_points),
-})
-
-st.altair_chart(alt.Chart(df, height=700, width=700)
-    .mark_point(filled=True)
-    .encode(
-        x=alt.X("x", axis=None),
-        y=alt.Y("y", axis=None),
-        color=alt.Color("idx", legend=None, scale=alt.Scale()),
-        size=alt.Size("rand", legend=None, scale=alt.Scale(range=[1, 150])),
-    ))
+st.set_page_config(page_title="WikiTrail", layout="wide")
+
+st.markdown("<h1 style='text-align: center;'>📚 WikiTrail</h1>", unsafe_allow_html=True)
+st.markdown("<p style='text-align: center;'>Explore Wikipedia topics visually and get a summarized journey.</p>", unsafe_allow_html=True)
+
+topic = st.text_input("Enter a topic", placeholder="e.g., India")
+
+def fetch_topic_summary(topic):
+    url = f"https://en.wikipedia.org/api/rest_v1/page/summary/{topic}"
+    res = requests.get(url)
+    if res.status_code == 200:
+        data = res.json()
+        return {
+            "title": data.get("title", ""),
+            "summary": data.get("extract", ""),
+            "image": data.get("thumbnail", {}).get("source"),
+            "link": data.get("content_urls", {}).get("desktop", {}).get("page")
+        }
+    return None
+
+def fetch_related_topics(topic):
+    url = f"https://en.wikipedia.org/w/api.php?action=query&format=json&origin=*&titles={topic}&prop=links&pllimit=5"
+    res = requests.get(url)
+    if res.status_code == 200:
+        data = res.json()
+        pages = list(data['query']['pages'].values())
+        if pages and 'links' in pages[0]:
+            return [link['title'] for link in pages[0]['links']]
+    return []
+
+def simple_summary(all_summaries, limit=3):
+    full_text = ' '.join(all_summaries)
+    sentences = full_text.split('. ')
+    return '. '.join(sentences[:limit]) + '.'
+
+if topic:
+    with st.spinner("🔍 Searching Wikipedia..."):
+        summaries = []
+
+        st.subheader("🔷 Main Topic")
+        main = fetch_topic_summary(topic)
+        if main:
+            summaries.append(main["summary"])
+            st.markdown(f"### {main['title']}")
+            if main["image"]:
+                st.image(main["image"], width=300)
+            st.write(main["summary"])
+            st.markdown(f"[Read More →]({main['link']})", unsafe_allow_html=True)
+        else:
+            st.warning("Couldn't fetch data for the main topic.")
+
+        st.subheader("🔗 Related Topics")
+        related = fetch_related_topics(topic)
+        if related:
+            for rel in related:
+                data = fetch_topic_summary(rel)
+                if data:
+                    summaries.append(data["summary"])
+                    with st.expander(data["title"]):
+                        if data["image"]:
+                            st.image(data["image"], width=200)
+                        st.write(data["summary"])
+                        st.markdown(f"[Read More →]({data['link']})", unsafe_allow_html=True)
+        else:
+            st.info("No related topics found.")
+
+        st.subheader("🧠 Combined Summary")
+        st.success(simple_summary(summaries))