#!/usr/bin/env bash
set -euo pipefail

cd "$(dirname "$0")"

if [[ ! -f .env ]]; then
    echo "No .env found. Copy .env.example to .env and edit it first." >&2
    exit 1
fi

if [[ ! -d .venv ]]; then
    echo "Creating virtualenv at .venv..."
    python3 -m venv .venv
    .venv/bin/pip install -q --upgrade pip
    .venv/bin/pip install -q -r requirements.txt
fi

MODE="${1:-web}"
HOST="${HOST:-0.0.0.0}"
PORT="${PORT:-8501}"

case "$MODE" in
    web)
        exec .venv/bin/streamlit run gpfs_agent/web.py \
            --server.address "$HOST" \
            --server.port "$PORT" \
            --server.headless true \
            --browser.gatherUsageStats false
        ;;
    cli|repl)
        exec .venv/bin/python -m gpfs_agent
        ;;
    *)
        echo "Usage: $0 [web|cli]" >&2
        exit 2
        ;;
esac