src/streamlit_app.py

import os
# Set HF_HOME for caching
os.environ["HF_HOME"] = "src/data_cache"

import streamlit as st
import pandas as pd
import altair as alt
from huggingface_hub import HfApi, HfFileSystem
import json
from pathlib import Path
from typing import Dict, List, Optional
import numpy as np

# Page config
st.set_page_config(
    page_title="Grounding Benchmark Leaderboard",
    page_icon="🎯",
    layout="wide"
)

# Constants
REPO_ID = "mlfoundations-cua-dev/leaderboard"
GROUNDING_PATH = "grounding"

# Baselines for different datasets
BASELINES = {
    "screenspot-v2": {
        "Qwen2-VL-7B": {
            "desktop_text": 52.01,
            "desktop_icon": 44.98,
            "web_text": 33.04,
            "web_icon": 21.84,
            "overall": 37.96
        },
        "UI-TARS-2B": {
            "desktop_text": 90.7,
            "desktop_icon": 68.6,
            "web_text": 87.2,
            "web_icon": 84.7,
            "overall": 82.8
        },
        "UI-TARS-7B": {
            "desktop_text": 95.4,
            "desktop_icon": 87.8,
            "web_text": 93.8,
            "web_icon": 91.6,
            "overall": 92.2
        },
        "UI-TARS-72B": {
            "desktop_text": 91.2,
            "desktop_icon": 87.8,
            "web_text": 87.7,
            "web_icon": 86.3,
            "overall": 88.3
        }
    },
    "screenspot-pro": {
        "Qwen2.5-VL-3B-Instruct": {
            "overall": 16.1
        },
        "Qwen2.5-VL-7B-Instruct": {
            "overall": 26.8
        },
        "Qwen2.5-VL-72B-Instruct": {
            "overall": 53.3
        },
        "UI-TARS-2B": {
            "overall": 27.7
        },
        "UI-TARS-7B": {
            "overall": 35.7
        },
        "UI-TARS-72B": {
            "overall": 38.1
        }
    }
}

@st.cache_data(ttl=300)  # Cache for 5 minutes
def fetch_leaderboard_data():
    """Fetch all grounding results from HuggingFace leaderboard by streaming JSON files."""
    api = HfApi()
    fs = HfFileSystem()
    
    try:
        # List all files in the grounding directory
        files = api.list_repo_files(repo_id=REPO_ID, repo_type="dataset")
        grounding_files = [f for f in files if f.startswith(f"{GROUNDING_PATH}/") and f.endswith(".json")]
        
        results = []
        
        # Create progress bar for loading
        progress_bar = st.progress(0)
        status_text = st.empty()
        
        for idx, file_path in enumerate(grounding_files):
            try:
                # Update progress
                progress = (idx + 1) / len(grounding_files)
                progress_bar.progress(progress)
                status_text.text(f"Loading {idx + 1}/{len(grounding_files)} files...")
                
                # Stream the JSON file content directly from HuggingFace
                file_url = f"datasets/{REPO_ID}/{file_path}"
                
                # Read the file content directly without downloading
                with fs.open(file_url, 'r') as f:
                    data = json.load(f)
                
                # Extract only the necessary information
                metadata = data.get("metadata", {})
                metrics = data.get("metrics", {})
                detailed_results = data.get("detailed_results", {})
                
                # Parse the file path to get dataset and model info
                path_parts = file_path.split('/')
                dataset_name = path_parts[1] if len(path_parts) > 1 else "unknown"
                
                # Get model name from metadata or path
                model_checkpoint = metadata.get("model_checkpoint", "")
                model_name = model_checkpoint.split('/')[-1]
                base_model_name = None
                is_checkpoint = False
                
                # Handle checkpoint names
                if not model_name and len(path_parts) > 2:
                    # Check if it's a checkpoint subdirectory structure
                    if len(path_parts) > 3 and path_parts[2] != path_parts[3]:
                        # Format: grounding/dataset/base_model/checkpoint.json
                        base_model_name = path_parts[2]
                        checkpoint_file = path_parts[3].replace(".json", "")
                        model_name = f"{base_model_name}/{checkpoint_file}"
                        is_checkpoint = True
                    else:
                        # Regular format: grounding/dataset/results_modelname.json
                        model_name = path_parts[2].replace("results_", "").replace(".json", "")
                        base_model_name = model_name
                
                # Check if model name indicates a checkpoint
                if 'checkpoint-' in model_name:
                    is_checkpoint = True
                    if not base_model_name:
                        # Extract base model name from full path
                        if '/' in model_name:
                            parts = model_name.split('/')
                            base_model_name = parts[0]
                        else:
                            # Try to get from model_checkpoint path
                            checkpoint_parts = model_checkpoint.split('/')
                            if len(checkpoint_parts) > 1:
                                base_model_name = checkpoint_parts[-2]
                
                # Extract UI type results if available
                ui_type_results = detailed_results.get("by_ui_type", {})
                dataset_type_results = detailed_results.get("by_dataset_type", {})
                
                # Create a compact result entry (only keep what we need for visualization)
                result_entry = {
                    "dataset": dataset_name,
                    "model": model_name,
                    "base_model": base_model_name or model_name,
                    "is_checkpoint": is_checkpoint,
                    "model_path": model_checkpoint,
                    "overall_accuracy": metrics.get("accuracy", 0) * 100,  # Convert to percentage
                    "total_samples": metrics.get("total", 0),
                    "timestamp": metadata.get("evaluation_timestamp", ""),
                    "checkpoint_steps": metadata.get("checkpoint_steps"),
                    "training_loss": metadata.get("training_loss"),
                    "ui_type_results": ui_type_results,
                    "dataset_type_results": dataset_type_results,
                    # Store minimal sample results for inspection
                    "sample_results_summary": {
                        "total_samples": len(data.get("sample_results", [])),
                        "first_5_samples": data.get("sample_results", [])[:5]
                    }
                }
                
                results.append(result_entry)
                
            except Exception as e:
                st.warning(f"Error loading {file_path}: {str(e)}")
                continue
        
        # Clear progress indicators
        progress_bar.empty()
        status_text.empty()
        
        # Create DataFrame
        df = pd.DataFrame(results)
        
        # Process checkpoints: for each base model, find the best checkpoint
        if not df.empty:
            # Group by dataset and base_model
            grouped = df.groupby(['dataset', 'base_model'])
            
            # For each group, find the best checkpoint
            best_models = []
            for (dataset, base_model), group in grouped:
                if len(group) > 1:
                    # Multiple entries for this model (likely checkpoints)
                    best_idx = group['overall_accuracy'].idxmax()
                    best_row = group.loc[best_idx].copy()
                    
                    # Check if the best is the last checkpoint
                    checkpoint_steps = group[group['checkpoint_steps'].notna()]['checkpoint_steps'].sort_values()
                    if len(checkpoint_steps) > 0:
                        last_checkpoint_steps = checkpoint_steps.iloc[-1]
                        best_checkpoint_steps = best_row['checkpoint_steps']
                        if pd.notna(best_checkpoint_steps) and best_checkpoint_steps != last_checkpoint_steps:
                            # Best checkpoint is not the last one, add asterisk
                            best_row['model'] = best_row['model'] + '*'
                            best_row['is_best_not_last'] = True
                        else:
                            best_row['is_best_not_last'] = False
                    
                    # Store all checkpoints for this model
                    best_row['all_checkpoints'] = group.to_dict('records')
                    best_models.append(best_row)
                else:
                    # Single entry for this model
                    row = group.iloc[0].copy()
                    row['is_best_not_last'] = False
                    row['all_checkpoints'] = [row.to_dict()]
                    best_models.append(row)
            
            # Create new dataframe with best models
            df_best = pd.DataFrame(best_models)
            return df_best
        
        return df
    
    except Exception as e:
        st.error(f"Error fetching leaderboard data: {str(e)}")
        return pd.DataFrame()

def parse_ui_type_metrics(df: pd.DataFrame, dataset_filter: str) -> pd.DataFrame:
    """Parse UI type metrics from the results dataframe."""
    metrics_list = []
    
    for _, row in df.iterrows():
        if row['dataset'] != dataset_filter:
            continue
            
        model = row['model']
        ui_results = row['ui_type_results']
        
        # For ScreenSpot datasets, we have desktop/web and text/icon
        if 'screenspot' in dataset_filter.lower():
            # Calculate individual metrics
            desktop_text = ui_results.get('desktop_text', {}).get('correct', 0) / max(ui_results.get('desktop_text', {}).get('total', 1), 1) * 100
            desktop_icon = ui_results.get('desktop_icon', {}).get('correct', 0) / max(ui_results.get('desktop_icon', {}).get('total', 1), 1) * 100
            web_text = ui_results.get('web_text', {}).get('correct', 0) / max(ui_results.get('web_text', {}).get('total', 1), 1) * 100
            web_icon = ui_results.get('web_icon', {}).get('correct', 0) / max(ui_results.get('web_icon', {}).get('total', 1), 1) * 100
            
            # Calculate averages
            desktop_avg = (desktop_text + desktop_icon) / 2 if (desktop_text > 0 or desktop_icon > 0) else 0
            web_avg = (web_text + web_icon) / 2 if (web_text > 0 or web_icon > 0) else 0
            text_avg = (desktop_text + web_text) / 2 if (desktop_text > 0 or web_text > 0) else 0
            icon_avg = (desktop_icon + web_icon) / 2 if (desktop_icon > 0 or web_icon > 0) else 0
            
            # For screenspot-v2, calculate the overall as average of desktop and web
            if dataset_filter == 'screenspot-v2':
                overall = (desktop_avg + web_avg) / 2 if (desktop_avg > 0 or web_avg > 0) else 0
            else:
                overall = row['overall_accuracy']
            
            metrics_list.append({
                'model': model,
                'desktop_text': desktop_text,
                'desktop_icon': desktop_icon,
                'web_text': web_text,
                'web_icon': web_icon,
                'desktop_avg': desktop_avg,
                'web_avg': web_avg,
                'text_avg': text_avg,
                'icon_avg': icon_avg,
                'overall': overall,
                'is_best_not_last': row.get('is_best_not_last', False),
                'all_checkpoints': row.get('all_checkpoints', [])
            })
    
    return pd.DataFrame(metrics_list)

def create_bar_chart(data: pd.DataFrame, metric: str, title: str):
    """Create a bar chart for a specific metric."""
    # Prepare data for the chart
    chart_data = []
    
    # Add model results
    for _, row in data.iterrows():
        if metric in row and row[metric] > 0:
            chart_data.append({
                'Model': row['model'],
                'Score': row[metric],
                'Type': 'Evaluated'
            })
    
    # Add baselines if available
    dataset = st.session_state.get('selected_dataset', '')
    if dataset in BASELINES:
        for baseline_name, baseline_metrics in BASELINES[dataset].items():
            metric_key = metric.replace('_avg', '').replace('avg', 'overall')
            if metric_key in baseline_metrics:
                chart_data.append({
                    'Model': baseline_name,
                    'Score': baseline_metrics[metric_key],
                    'Type': 'Baseline'
                })
    
    if not chart_data:
        return None
    
    df_chart = pd.DataFrame(chart_data)
    
    # Create the bar chart
    chart = alt.Chart(df_chart).mark_bar().encode(
        x=alt.X('Model:N', 
                sort=alt.EncodingSortField(field='Score', order='descending'),
                axis=alt.Axis(labelAngle=-45)),
        y=alt.Y('Score:Q', 
                scale=alt.Scale(domain=[0, 100]),
                axis=alt.Axis(title='Score (%)')),
        color=alt.Color('Type:N', 
                       scale=alt.Scale(domain=['Evaluated', 'Baseline'],
                                     range=['#4ECDC4', '#FFA726'])),
        tooltip=['Model', 'Score', 'Type']
    ).properties(
        title=title,
        width=400,
        height=300
    )
    
    # Add value labels
    text = chart.mark_text(
        align='center',
        baseline='bottom',
        dy=-5
    ).encode(
        text=alt.Text('Score:Q', format='.1f')
    )
    
    return chart + text

def main():
    st.title("🎯 Grounding Benchmark Leaderboard")
    st.markdown("Visualization of model performance on grounding benchmarks")
    
    # Fetch data
    with st.spinner("Loading leaderboard data..."):
        df = fetch_leaderboard_data()
    
    if df.empty:
        st.warning("No data available in the leaderboard.")
        return
    
    # Sidebar filters
    st.sidebar.header("Filters")
    
    # Dataset filter
    datasets = sorted(df['dataset'].unique())
    selected_dataset = st.sidebar.selectbox("Select Dataset", datasets)
    st.session_state['selected_dataset'] = selected_dataset
    
    # Filter data
    filtered_df = df[df['dataset'] == selected_dataset]
    
    # Model filter (optional)
    models = ['All'] + sorted(filtered_df['model'].unique())
    selected_model = st.sidebar.selectbox("Select Model", models)
    
    if selected_model != 'All':
        filtered_df = filtered_df[filtered_df['model'] == selected_model]
    
    # Main content
    st.header(f"Results for {selected_dataset}")
    
    # Overall metrics
    col1, col2, col3 = st.columns(3)
    with col1:
        st.metric("Models Evaluated", len(filtered_df))
    with col2:
        if not filtered_df.empty:
            best_acc = filtered_df['overall_accuracy'].max()
            best_model = filtered_df[filtered_df['overall_accuracy'] == best_acc]['model'].iloc[0]
            st.metric("Best Overall Accuracy", f"{best_acc:.1f}%", help=f"Model: {best_model}")
    with col3:
        total_samples = filtered_df['total_samples'].sum()
        st.metric("Total Samples Evaluated", f"{total_samples:,}")
    
    # Parse UI type metrics
    ui_metrics_df = parse_ui_type_metrics(filtered_df, selected_dataset)
    
    if not ui_metrics_df.empty and 'screenspot' in selected_dataset.lower():
        st.subheader("Performance by UI Type")
        
        # Add note about asterisks
        if any(ui_metrics_df['is_best_not_last']):
            st.info("* indicates the best checkpoint is not the last checkpoint")
        
        # Create charts in a grid
        if selected_dataset == 'screenspot-v2':
            # First row: Overall, Desktop, Web averages
            col1, col2, col3 = st.columns(3)
            
            with col1:
                chart = create_bar_chart(ui_metrics_df, 'overall', 'Overall Average (Desktop + Web) / 2')
                if chart:
                    st.altair_chart(chart, use_container_width=True)
            
            with col2:
                chart = create_bar_chart(ui_metrics_df, 'desktop_avg', 'Desktop Average')
                if chart:
                    st.altair_chart(chart, use_container_width=True)
            
            with col3:
                chart = create_bar_chart(ui_metrics_df, 'web_avg', 'Web Average')
                if chart:
                    st.altair_chart(chart, use_container_width=True)
            
            # Second row: Individual UI type metrics
            col1, col2, col3, col4 = st.columns(4)
            
            with col1:
                chart = create_bar_chart(ui_metrics_df, 'desktop_text', 'Desktop (Text)')
                if chart:
                    st.altair_chart(chart, use_container_width=True)
            
            with col2:
                chart = create_bar_chart(ui_metrics_df, 'desktop_icon', 'Desktop (Icon)')
                if chart:
                    st.altair_chart(chart, use_container_width=True)
            
            with col3:
                chart = create_bar_chart(ui_metrics_df, 'web_text', 'Web (Text)')
                if chart:
                    st.altair_chart(chart, use_container_width=True)
            
            with col4:
                chart = create_bar_chart(ui_metrics_df, 'web_icon', 'Web (Icon)')
                if chart:
                    st.altair_chart(chart, use_container_width=True)
            
            # Third row: Text vs Icon averages
            col1, col2 = st.columns(2)
            
            with col1:
                chart = create_bar_chart(ui_metrics_df, 'text_avg', 'Text Average (Desktop + Web)')
                if chart:
                    st.altair_chart(chart, use_container_width=True)
            
            with col2:
                chart = create_bar_chart(ui_metrics_df, 'icon_avg', 'Icon Average (Desktop + Web)')
                if chart:
                    st.altair_chart(chart, use_container_width=True)
        else:
            # For other screenspot datasets, show the standard layout
            col1, col2 = st.columns(2)
            
            with col1:
                # Overall Average
                chart = create_bar_chart(ui_metrics_df, 'overall', 'Overall Average')
                if chart:
                    st.altair_chart(chart, use_container_width=True)
                
                # Desktop Average
                chart = create_bar_chart(ui_metrics_df, 'desktop_avg', 'Desktop Average')
                if chart:
                    st.altair_chart(chart, use_container_width=True)
                
                # Text Average
                chart = create_bar_chart(ui_metrics_df, 'text_avg', 'Text Average (UI-Type)')
                if chart:
                    st.altair_chart(chart, use_container_width=True)
            
            with col2:
                # Web Average
                chart = create_bar_chart(ui_metrics_df, 'web_avg', 'Web Average')
                if chart:
                    st.altair_chart(chart, use_container_width=True)
                
                # Icon Average
                chart = create_bar_chart(ui_metrics_df, 'icon_avg', 'Icon Average (UI-Type)')
                if chart:
                    st.altair_chart(chart, use_container_width=True)
        
        # Checkpoint progression visualization
        with st.expander("Checkpoint Progression Analysis"):
            # Select a model with checkpoints
            models_with_checkpoints = ui_metrics_df[ui_metrics_df['all_checkpoints'].apply(lambda x: len(x) > 1)]
            
            if not models_with_checkpoints.empty:
                selected_checkpoint_model = st.selectbox(
                    "Select a model to view checkpoint progression:",
                    models_with_checkpoints['model'].str.replace('*', '').unique()
                )
                
                # Get checkpoint data for selected model
                model_row = models_with_checkpoints[models_with_checkpoints['model'].str.replace('*', '') == selected_checkpoint_model].iloc[0]
                checkpoint_data = model_row['all_checkpoints']
                
                # Create DataFrame from checkpoint data
                checkpoint_df = pd.DataFrame(checkpoint_data)
                
                # Prepare data for visualization
                checkpoint_metrics = []
                for _, cp in checkpoint_df.iterrows():
                    ui_results = cp['ui_type_results']
                    
                    # Calculate metrics
                    desktop_text = ui_results.get('desktop_text', {}).get('correct', 0) / max(ui_results.get('desktop_text', {}).get('total', 1), 1) * 100
                    desktop_icon = ui_results.get('desktop_icon', {}).get('correct', 0) / max(ui_results.get('desktop_icon', {}).get('total', 1), 1) * 100
                    web_text = ui_results.get('web_text', {}).get('correct', 0) / max(ui_results.get('web_text', {}).get('total', 1), 1) * 100
                    web_icon = ui_results.get('web_icon', {}).get('correct', 0) / max(ui_results.get('web_icon', {}).get('total', 1), 1) * 100
                    
                    desktop_avg = (desktop_text + desktop_icon) / 2
                    web_avg = (web_text + web_icon) / 2
                    overall = (desktop_avg + web_avg) / 2 if selected_dataset == 'screenspot-v2' else cp['overall_accuracy']
                    
                    checkpoint_metrics.append({
                        'steps': cp['checkpoint_steps'] or 0,
                        'overall': overall,
                        'desktop': desktop_avg,
                        'web': web_avg,
                        'loss': cp['training_loss'],
                        'neg_log_loss': -np.log(cp['training_loss']) if cp['training_loss'] and cp['training_loss'] > 0 else None
                    })
                
                metrics_df = pd.DataFrame(checkpoint_metrics).sort_values('steps')
                
                # Plot metrics over training steps
                col1, col2 = st.columns(2)
                
                with col1:
                    st.write("**Accuracy over Training Steps**")
                    
                    # Melt data for multi-line chart
                    melted = metrics_df[['steps', 'overall', 'desktop', 'web']].melt(
                        id_vars=['steps'], 
                        var_name='Metric', 
                        value_name='Accuracy'
                    )
                    
                    chart = alt.Chart(melted).mark_line(point=True).encode(
                        x=alt.X('steps:Q', title='Training Steps'),
                        y=alt.Y('Accuracy:Q', scale=alt.Scale(domain=[0, 100]), title='Accuracy (%)'),
                        color=alt.Color('Metric:N', scale=alt.Scale(
                            domain=['overall', 'desktop', 'web'],
                            range=['#4ECDC4', '#45B7D1', '#96CEB4']
                        )),
                        tooltip=['steps', 'Metric', 'Accuracy']
                    ).properties(
                        width=400,
                        height=300,
                        title='Accuracy Progression During Training'
                    )
                    st.altair_chart(chart, use_container_width=True)
                
                with col2:
                    st.write("**Accuracy vs. Training Loss**")
                    
                    if metrics_df['neg_log_loss'].notna().any():
                        scatter_data = metrics_df[metrics_df['neg_log_loss'].notna()]
                        
                        chart = alt.Chart(scatter_data).mark_circle(size=100).encode(
                            x=alt.X('neg_log_loss:Q', title='-log(Training Loss)'),
                            y=alt.Y('overall:Q', scale=alt.Scale(domain=[0, 100]), title='Overall Accuracy (%)'),
                            color=alt.Color('steps:Q', scale=alt.Scale(scheme='viridis'), title='Training Steps'),
                            tooltip=['steps', 'loss', 'overall']
                        ).properties(
                            width=400,
                            height=300,
                            title='Accuracy vs. -log(Training Loss)'
                        )
                        st.altair_chart(chart, use_container_width=True)
                    else:
                        st.info("No training loss data available for this model")
                
                # Show checkpoint details table
                st.write("**Checkpoint Details**")
                display_metrics = metrics_df[['steps', 'overall', 'desktop', 'web', 'loss']].copy()
                display_metrics.columns = ['Steps', 'Overall %', 'Desktop %', 'Web %', 'Training Loss']
                display_metrics[['Overall %', 'Desktop %', 'Web %']] = display_metrics[['Overall %', 'Desktop %', 'Web %']].round(2)
                display_metrics['Training Loss'] = display_metrics['Training Loss'].apply(lambda x: f"{x:.4f}" if pd.notna(x) else "N/A")
                st.dataframe(display_metrics, use_container_width=True)
            else:
                st.info("No models with multiple checkpoints available for progression analysis")
        
        # Detailed breakdown
        with st.expander("Detailed UI Type Breakdown"):
            # Create a heatmap-style table
            detailed_metrics = []
            for _, row in ui_metrics_df.iterrows():
                detailed_metrics.append({
                    'Model': row['model'],
                    'Desktop Text': f"{row['desktop_text']:.1f}%",
                    'Desktop Icon': f"{row['desktop_icon']:.1f}%",
                    'Web Text': f"{row['web_text']:.1f}%",
                    'Web Icon': f"{row['web_icon']:.1f}%",
                    'Overall': f"{row['overall']:.1f}%"
                })
            
            if detailed_metrics:
                st.dataframe(pd.DataFrame(detailed_metrics), use_container_width=True)
    
    else:
        # For non-ScreenSpot datasets, show a simple bar chart
        st.subheader("Model Performance")
        
        chart_data = filtered_df[['model', 'overall_accuracy']].copy()
        chart_data.columns = ['Model', 'Accuracy']
        
        chart = alt.Chart(chart_data).mark_bar().encode(
            x=alt.X('Model:N', sort='-y', axis=alt.Axis(labelAngle=-45)),
            y=alt.Y('Accuracy:Q', scale=alt.Scale(domain=[0, 100])),
            tooltip=['Model', 'Accuracy']
        ).properties(
            width=800,
            height=400
        )
        
        st.altair_chart(chart, use_container_width=True)
    
    # Model details table
    with st.expander("Model Details"):
        display_df = filtered_df[['model', 'overall_accuracy', 'total_samples', 'checkpoint_steps', 'training_loss', 'timestamp']].copy()
        display_df.columns = ['Model', 'Accuracy (%)', 'Samples', 'Checkpoint Steps', 'Training Loss', 'Timestamp']
        display_df['Accuracy (%)'] = display_df['Accuracy (%)'].apply(lambda x: f"{x:.2f}")
        display_df['Training Loss'] = display_df['Training Loss'].apply(lambda x: f"{x:.4f}" if pd.notna(x) else "N/A")
        st.dataframe(display_df, use_container_width=True)
    
    # Raw data viewer
    with st.expander("Sample Results"):
        if selected_model != 'All' and len(filtered_df) == 1:
            summary = filtered_df.iloc[0]['sample_results_summary']
            st.write(f"**Total evaluation samples:** {summary['total_samples']}")
            st.write("**First 5 sample results:**")
            for i, sample in enumerate(summary['first_5_samples'], 1):
                st.write(f"\n**Sample {i}:**")
                col1, col2 = st.columns([1, 2])
                with col1:
                    st.write(f"- **Correct:** {'✅' if sample.get('is_correct') else '❌'}")
                    st.write(f"- **Image:** {sample.get('img_filename', 'N/A')}")
                with col2:
                    st.write(f"- **Instruction:** {sample.get('instruction', 'N/A')}")
                    if sample.get('predicted_click'):
                        st.write(f"- **Predicted Click:** {sample['predicted_click']}")
                    if sample.get('error_msg'):
                        st.write(f"- **Error:** {sample['error_msg']}")
        else:
            st.info("Select a specific model to view sample results")

if __name__ == "__main__":
    main()