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from omegaconf import OmegaConf
from query import VectaraQuery
import os
import streamlit as st
from PIL import Image
import concurrent.futures
SCORE_THRESHOLD = 0.7
def inject_custom_css():
st.markdown(
"""
<style>
@import url('https://fonts.googleapis.com/css2?family=Roboto:wght@400;500;700&display=swap');
body {
font-family: 'Roboto', sans-serif;
background-color: #f5f5f5;
color: #333;
}
body {
font-family: 'Roboto', sans-serif;
background-color: #f5f5f5;
color: #333;
padding-top: 0px;
margin-top: 0px;
}
.stApp {
padding-top: 0px;
margin-top: 0px;
}
.stButton>button {
margin-top: 25px;
background-color: #4CAF50;
color: white;
padding: 10px 24px;
border: none;
cursor: pointer;
border-radius: 4px;
}
.stButton>button:hover {
background-color: #45a049;
}
.stTextInput>div>input {
padding: 10px;
border-radius: 4px;
border: 1px solid #ccc;
font-size: 16px;
}
.stTextInput>div>input:focus {
border-color: #007BFF;
outline: none;
box-shadow: 0 0 5px rgba(0, 123, 255, 0.5);
}
.centered {
display: flex;
justify-content: center;
align-items: center;
}
.sidebar .stImage {
display: flex;
justify-content: center;
margin-bottom: 20px;
}
.css-1lcbmhc.e1fqkh3o3 { /* This targets the sidebar */
background-color: #ffffff !important;
color: #333 !important;
}
.css-1d391kg { /* This targets the sidebar headings */
color: #333 !important;
}
</style>
""",
unsafe_allow_html=True
)
def fetch_summary(vq, matching_text, doc_id):
return vq.get_summary(matching_text, doc_id)
def launch_app():
with concurrent.futures.ThreadPoolExecutor() as executor:
if 'cfg' not in st.session_state:
cfg = OmegaConf.create({
'customer_id': str(os.environ['VECTARA_CUSTOMER_ID']),
'corpus_id': str(os.environ['VECTARA_CORPUS_ID']),
'api_key': str(os.environ['VECTARA_API_KEY']),
'streaming': False
})
st.session_state.cfg = cfg
st.session_state.vq = VectaraQuery(cfg.api_key, cfg.customer_id, [cfg.corpus_id])
cfg = st.session_state.cfg
vq = st.session_state.vq
st.set_page_config(page_title="Media Demo", layout="wide")
inject_custom_css()
header_image = Image.open('header-image-2.png')
cropped_image = header_image.crop((0, 0, header_image.width, 150))
st.image(cropped_image, use_column_width=True)
# left side content
with st.sidebar:
image = Image.open('vectara-logo.png')
st.markdown("## Welcome to Media Demo\n\n"
"This demo uses Vectara to find the movie where a quote is from.\n\n"
"Covers movies from this [playlist](https://www.youtube.com/playlist?list=PLHPTxTxtC0ibVZrT2_WKWUl2SAxsKuKwx) of free movies.")
st.markdown("---")
st.markdown(
"## How this works?\n"
"This app was built with [Vectara](https://vectara.com).\n"
)
st.markdown("---")
st.image(image, width=250)
st.markdown("<center> <h3>\"Where did I hear that line?\"</h3> </center>", unsafe_allow_html=True)
_, q_col, _ = st.columns([1, 4, 1])
with q_col:
quote = st.text_input("quote", label_visibility="hidden", placeholder="Enter a quote from a movie.")
prev_quote = st.session_state.get('prev_quote', '')
if quote != prev_quote:
st.session_state.quote = quote
st.session_state.prev_quote = quote
st.session_state.movie_name, st.session_state.match_url, st.session_state.score, doc_id, matching_text = vq.submit_query(quote)
if st.session_state.score < SCORE_THRESHOLD:
st.session_state.movie_name = None
else:
future = executor.submit(fetch_summary, vq, matching_text, doc_id)
st.session_state.summary_future = future
if 'score' in st.session_state and st.session_state.score:
if st.session_state.movie_name is None:
st.write("Sorry, I couldn't find a match for that quote. Please try another one.")
else:
video_url, start_time = st.session_state.match_url.split('&t=')
video_url = f"{video_url}&cc_load_policy=1"
start_time = start_time[:-1] # remove the trailing 's'
_, video_col, summary_col = st.columns([1, 4, 3])
with video_col:
st.video(video_url, start_time=int(float(start_time)))
with summary_col:
# Display the summary when it's ready
if 'summary_future' in st.session_state:
if st.session_state.summary_future.done():
st.markdown("**Summary:**")
st.session_state.summary = st.session_state.summary_future.result()
st.markdown(st.session_state.summary)
if not st.session_state.summary_future.done():
st.rerun()
if __name__ == "__main__":
launch_app()
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