#!/bin/sh
set -e

echo "[entrypoint] Running Alembic migrations..."
alembic upgrade head

# One-time migration: if trumpsignal.db exists and posts table is empty,
# migrate SQLite data into Postgres then remove the db file.
if [ -f "trumpsignal.db" ]; then
    echo "[entrypoint] Found trumpsignal.db — checking if migration needed..."
    POST_COUNT=$(python -c "
import asyncio, os
os.environ.setdefault('DATABASE_URL', '')
import psycopg2
url = os.environ.get('DATABASE_URL','').replace('+asyncpg','')
try:
    conn = psycopg2.connect(url)
    cur = conn.cursor()
    cur.execute('SELECT COUNT(*) FROM posts')
    print(cur.fetchone()[0])
    conn.close()
except Exception as e:
    print('0')
" 2>/dev/null || echo "0")

    if [ "$POST_COUNT" = "0" ]; then
        echo "[entrypoint] Postgres is empty — running SQLite migration..."
        python scripts/migrate_sqlite_to_postgres.py
        echo "[entrypoint] Migration done. Removing trumpsignal.db..."
        rm -f trumpsignal.db
    else
        echo "[entrypoint] Postgres already has data (${POST_COUNT} posts) — skipping migration."
        rm -f trumpsignal.db
    fi
fi

echo "[entrypoint] Starting API server..."
exec uvicorn app.main:app --host 0.0.0.0 --port 8000