#!/bin/bash
set -e
# Entrypoint for HuggingClaw - Cain

# Ensure frontend directory exists (defensive: created at build time, but verify at runtime)
mkdir -p /app/frontend
mkdir -p /data/frontend

# Ensure /data is writable and exists
mkdir -p /data
chmod 777 /data 2>/dev/null || true

echo "=========================================="
echo "Cain Starting..."
echo "=========================================="
echo "Timestamp: $(date -u +"%Y-%m-%dT%H:%M:%SZ")"
echo "PORT: ${PORT:-7860}"
echo "Working Directory: $(pwd)"
echo "Python Version: $(python --version)"
echo "Data directory: $(ls -la /data 2>&1 | head -5)"
echo "=========================================="

# Change to app directory
cd /app

# Set data directory to dataset mount point
export OPENCLAW_DATA_DIR=/data

# Verify app.py exists
if [ ! -f "/app/app.py" ]; then
    echo "ERROR: app.py not found in /app"
    exit 1
fi
echo "✓ app.py found"

# List key files for debugging
echo ""
echo "Files in /app:"
ls -la /app/*.py 2>/dev/null || echo "  (no .py files in /app root)"

# Create logs directory
mkdir -p /app/logs

# Ensure cain_status.json directory exists
mkdir -p /data

# CRITICAL: Clear stale error field from cain_status.json before startup
# This prevents "unknown" errors from persisting across container restarts
# Clean ALL possible status file locations to ensure consistency
echo "Cleaning stale error field from status files..."
python3 -c "
import json
from pathlib import Path

status_files = [
    Path('/data/cain_status.json'),  # Primary (OPENCLAW_DATA_DIR)
    Path('/app/openclaw/.openclaw/agents/cain_status.json'),  # Nested structure
    Path('/app/.openclaw/agents/cain_status.json'),  # Legacy flat structure
    Path('/app/cain_status.json'),  # App root
    Path('/app/data/cain_status.json'),  # App data subdirectory
    Path('/app/memory/cain_status.json'),  # Memory directory (CRITICAL: was missing!)
    Path('/data/memory/cain_status.json'),  # Data memory directory
]

cleaned = 0
for status_file in status_files:
    try:
        if status_file.exists():
            with open(status_file, 'r') as f:
                data = json.load(f)
            error = data.get('error')
            # Fix: if error is string 'unknown' or contains 'unknown', set to null
            if isinstance(error, str) and error.strip().lower() in ('unknown', 'none', 'null', ''):
                data['error'] = None
                data['_cleaned_at'] = 'entrypoint'
                with open(status_file, 'w') as f:
                    json.dump(data, f, indent=2)
                cleaned += 1
                print(f'  Cleaned: {status_file}')
            elif error is None:
                print(f'  OK: {status_file} (error already null)')
    except Exception as e:
        print(f'  Could not clean {status_file}: {e}')

print(f'Cleaned {cleaned} status file(s)')
" 2>/dev/null || echo "(Could not clean status files - continuing)"
echo ""

echo ""
echo "=========================================="
echo "Starting uvicorn..."
echo "=========================================="

# Run uvicorn directly in foreground (no forking, no piping)
exec uvicorn app:app --host 0.0.0.0 --port "${PORT:-7860}"