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

REPO_DIR="$(cd "$(dirname "$0")" && pwd)"
ENV_FILE="$REPO_DIR/.env"
PID_FILE="$REPO_DIR/data/sparrow.pid"
LOG_FILE="$REPO_DIR/data/sparrow.log"

[[ -f "$ENV_FILE" ]] && source "$ENV_FILE"
SPARROW_PORT="${SPARROW_PORT:-8513}"

cmd="${1:-help}"

start() {
    mkdir -p "$REPO_DIR/data"
    if [[ -f "$PID_FILE" ]] && kill -0 "$(cat "$PID_FILE")" 2>/dev/null; then
        echo "sparrow already running (PID $(cat "$PID_FILE"))"
        return
    fi
    echo "Starting sparrow on port $SPARROW_PORT..."
    conda run -n cf \
        uvicorn app.main:app --host "${SPARROW_HOST:-0.0.0.0}" --port "$SPARROW_PORT" \
        >> "$LOG_FILE" 2>&1 &
    echo $! > "$PID_FILE"
    echo "Started (PID $!). Logs: $LOG_FILE"
}

stop() {
    if [[ -f "$PID_FILE" ]]; then
        kill "$(cat "$PID_FILE")" 2>/dev/null && echo "Stopped." || echo "Not running."
        rm -f "$PID_FILE"
    else
        echo "Not running."
    fi
}

case "$cmd" in
    start)   start ;;
    stop)    stop ;;
    restart) stop; sleep 1; start ;;
    status)  [[ -f "$PID_FILE" ]] && kill -0 "$(cat "$PID_FILE")" 2>/dev/null \
             && echo "running (PID $(cat "$PID_FILE"))" || echo "stopped" ;;
    logs)    tail -f "$LOG_FILE" ;;
    open)    xdg-open "http://localhost:$SPARROW_PORT" 2>/dev/null || \
             open "http://localhost:$SPARROW_PORT" 2>/dev/null || true ;;
    *)       echo "Usage: $0 {start|stop|restart|status|logs|open}" ;;
esac