import streamlit as st
from datasets import load_dataset
import os 

HF_TOKEN = os.environ.get("HF_TOKEN", None)

st.set_page_config(page_title="Web Clusters inspection", layout="wide")
st.title("Web clusters inspection")

st.markdown("""
We clustered 100k web samples using [text-clustering](https://github.com/huggingface/text-clustering). 

Our approach involved prompting Mixtral to evaluate whether the topics in each cluster are educational or could be considered college material using a score from 1 to 10. \
Technically, we provide it with 10 random examples from the cluster in the prompt and ask it to judge their topics.

Additionally, the model was tasked with finding the topic of each cluster (based on the 10 random examples). 
""")


@st.cache_data
def load_data(min_score=1, max_score=10, show_special=False):
    # HuggingFaceTB/FW_clusters_free_topics
    ds = load_dataset("HuggingFaceTB/FW_clusters_100k_145_topics", split="train", token=HF_TOKEN, num_proc=2)
    def filter_func(x):
        try:
            score = int(x['educational_score'])
            value = False if show_special else min_score <= score <= max_score
            return value
        except (ValueError, TypeError):
            # Return True if show_special is checked and educational_score is None or ''
            return show_special

    ds = ds.filter(filter_func)
    return ds

st.subheader("Cluster information")
col_1, col_2, col_3 = st.columns(3)
with col_1:
    show_special = st.checkbox('Show only clusters with undefined educational score', False)
with col_2:
    min_value = st.slider('Select minimum educational score', 1, 10, 1, key='min_score')
with col_3:
    max_value = st.slider('Select maximum educational score', 1, 10, 10, key='max_score')
    
# Load data based on slider values and checkbox status
ds = load_data(min_value, max_value, show_special)
categories = list(set(ds["category"]))
selected_category = st.selectbox("Select a topic", categories)
selected_cluster = ds.filter(lambda x: x['category'] == selected_category)

# Select sample index
n_samples = len(selected_cluster)
if n_samples > 0:
    col_1, col_2 = st.columns(2)
    with col_1:
        index_cluster = st.number_input(f"Found {len(selected_cluster)} clusters, choose one",  min_value=0, max_value=len(selected_cluster)-1, value=0, step=1)

    files = selected_cluster[index_cluster]["examples"]

    with col_2:
        index_example = st.number_input(f"Found {len(files)} files in the cluster, choose one",  min_value=0, max_value=len(files)-1, value=0, step=1)

    sample = files[index_example]
    st.markdown(f"**Educational score of the cluster**: {selected_cluster[index_cluster]['educational_score']}")
    st.markdown(sample)
else:
    st.markdown("No files found, change the cluster.")