#!/bin/bash

# 3D 店內導引 Demo - 啟動伺服器腳本
# 使用方式: ./start-server.sh [dev|prod]

SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
cd "$SCRIPT_DIR"

# PID 檔案位置
PID_FILE="$SCRIPT_DIR/.server.pid"
LOG_FILE="$SCRIPT_DIR/.server.log"

# 檢查是否已經在執行
if [ -f "$PID_FILE" ]; then
    PID=$(cat "$PID_FILE")
    if ps -p "$PID" > /dev/null 2>&1; then
        echo "伺服器已在執行中 (PID: $PID)"
        echo "請先執行 ./stop-server.sh 關閉伺服器"
        exit 1
    else
        # 清理過期的 PID 檔案
        rm -f "$PID_FILE"
    fi
fi

# 取得本機 IP
get_local_ip() {
    # 嘗試不同方式取得 IP
    ip route get 1 2>/dev/null | awk '{print $7; exit}' || \
    hostname -I 2>/dev/null | awk '{print $1}' || \
    ifconfig 2>/dev/null | grep -Eo 'inet (addr:)?([0-9]*\.){3}[0-9]*' | grep -Eo '([0-9]*\.){3}[0-9]*' | grep -v '127.0.0.1' | head -1 || \
    echo "無法取得"
}

LOCAL_IP=$(get_local_ip)
PORT=3000

# 判斷模式
MODE=${1:-dev}

echo "=========================================="
echo "  3D 店內導引 Demo 伺服器"
echo "=========================================="
echo ""

if [ "$MODE" = "prod" ]; then
    echo "模式: 生產環境 (使用建構後的靜態檔案)"
    echo ""
    echo "正在建構專案..."
    npm run build > /dev/null 2>&1

    if [ $? -ne 0 ]; then
        echo "建構失敗！請檢查錯誤訊息。"
        exit 1
    fi

    echo "建構完成，啟動預覽伺服器..."
    nohup npm run preview:host > "$LOG_FILE" 2>&1 &
else
    echo "模式: 開發環境 (支援熱更新)"
    echo ""
    echo "正在啟動開發伺服器..."
    nohup npm run dev:host > "$LOG_FILE" 2>&1 &
fi

# 儲存 PID
SERVER_PID=$!
echo $SERVER_PID > "$PID_FILE"

# 等待伺服器啟動
sleep 2

# 檢查是否成功啟動
if ps -p "$SERVER_PID" > /dev/null 2>&1; then
    echo ""
    echo "伺服器啟動成功！"
    echo ""
    echo "=========================================="
    echo "  存取網址"
    echo "=========================================="
    echo ""
    echo "  本機存取:   http://localhost:$PORT"
    echo "  遠端存取:   http://$LOCAL_IP:$PORT"
    echo ""
    echo "=========================================="
    echo ""
    echo "PID: $SERVER_PID"
    echo "日誌檔案: $LOG_FILE"
    echo ""
    echo "關閉伺服器: ./stop-server.sh"
    echo ""
else
    echo "伺服器啟動失敗！"
    echo "請檢查日誌: cat $LOG_FILE"
    rm -f "$PID_FILE"
    exit 1
fi