#!/bin/bash

# 鲸鱼镇 本地Web服务器 (Linux/macOS)
# 版本: 1.0.0

# 颜色定义
RED='\033[0;31m'
GREEN='\033[0;32m'
YELLOW='\033[1;33m'
BLUE='\033[0;34m'
NC='\033[0m' # No Color

# 配置变量
BUILD_DIR="build/web"
PORT=8000
FALLBACK_PORT=8080

echo "========================================"
echo "     鲸鱼镇 本地Web服务器 v1.0"
echo "========================================"
echo

# 检查导出文件
echo -e "${BLUE}[检查]${NC} 验证Web导出文件..."
if [ ! -f "$BUILD_DIR/index.html" ]; then
    echo -e "${RED}[错误]${NC} 未找到Web导出文件！"
    echo
    echo "请先运行以下命令导出项目:"
    echo "  ./scripts/build_web.sh"
    echo
    echo "或在Godot编辑器中导出Web版本到: $BUILD_DIR/"
    echo
    exit 1
fi

# 检查必要文件
echo -e "${BLUE}[验证]${NC} 检查必要文件..."
REQUIRED_FILES="index.html index.js index.wasm index.pck"
MISSING_FILES=""

for file in $REQUIRED_FILES; do
    if [ ! -f "$BUILD_DIR/$file" ]; then
        MISSING_FILES="$MISSING_FILES $file"
    fi
done

if [ -n "$MISSING_FILES" ]; then
    echo -e "${RED}[错误]${NC} 缺少必要文件:$MISSING_FILES"
    echo "请重新导出项目"
    echo
    exit 1
fi

# 检查Python
echo -e "${BLUE}[检查]${NC} 验证Python环境..."
if ! command -v python3 &> /dev/null && ! command -v python &> /dev/null; then
    echo -e "${RED}[错误]${NC} 未找到Python！"
    echo
    echo "请安装Python 3.x:"
    echo "  macOS: brew install python"
    echo "  Ubuntu: sudo apt install python3"
    echo "  或访问: https://python.org/downloads"
    echo
    exit 1
fi

# 确定Python命令
PYTHON_CMD="python3"
if ! command -v python3 &> /dev/null; then
    PYTHON_CMD="python"
fi

# 获取Python版本
PYTHON_VERSION=$($PYTHON_CMD --version 2>&1 | cut -d' ' -f2)
echo -e "${GREEN}[信息]${NC} Python版本: $PYTHON_VERSION"

# 显示文件信息
echo
echo -e "${GREEN}[信息]${NC} Web文件统计:"
TOTAL_SIZE=$(du -sb "$BUILD_DIR" | cut -f1)
TOTAL_MB=$((TOTAL_SIZE / 1024 / 1024))

for file in "$BUILD_DIR"/*; do
    if [ -f "$file" ]; then
        filename=$(basename "$file")
        size=$(stat -f%z "$file" 2>/dev/null || stat -c%s "$file" 2>/dev/null)
        size_mb=$((size / 1024 / 1024))
        if [ $size_mb -gt 0 ]; then
            echo "  $filename: ${size_mb} MB"
        else
            size_kb=$((size / 1024))
            echo "  $filename: ${size_kb} KB"
        fi
    fi
done
echo "  总大小: ${TOTAL_MB} MB"

# 检查端口占用
echo
echo -e "${BLUE}[网络]${NC} 检查端口占用..."
if lsof -Pi :$PORT -sTCP:LISTEN -t >/dev/null 2>&1; then
    echo -e "${YELLOW}[警告]${NC} 端口 $PORT 已被占用，尝试使用 $FALLBACK_PORT"
    PORT=$FALLBACK_PORT
    
    if lsof -Pi :$PORT -sTCP:LISTEN -t >/dev/null 2>&1; then
        echo -e "${RED}[错误]${NC} 端口 $PORT 也被占用！"
        echo "请手动指定端口: $PYTHON_CMD -m http.server [端口号]"
        echo
        exit 1
    fi
fi

# 获取本机IP地址
LOCAL_IP=$(ifconfig | grep -Eo 'inet (addr:)?([0-9]*\.){3}[0-9]*' | grep -Eo '([0-9]*\.){3}[0-9]*' | grep -v '127.0.0.1' | head -1)
if [ -z "$LOCAL_IP" ]; then
    LOCAL_IP=$(hostname -I | cut -d' ' -f1 2>/dev/null)
fi
if [ -z "$LOCAL_IP" ]; then
    LOCAL_IP="localhost"
fi

# 显示启动信息
echo
echo -e "${GREEN}[启动]${NC} 启动HTTP服务器..."
echo "  端口: $PORT"
echo "  目录: $BUILD_DIR"
echo "  Python: $PYTHON_VERSION"
echo

echo "========================================"
echo -e "${GREEN}          访问地址${NC}"
echo "========================================"
echo "  本地访问: http://localhost:$PORT"
echo "  局域网访问: http://$LOCAL_IP:$PORT"
echo

echo -e "${YELLOW}[控制]${NC} 服务器控制:"
echo "  停止服务器: Ctrl+C"
echo "  重启服务器: 关闭后重新运行脚本"
echo

echo -e "${BLUE}[调试]${NC} 调试工具:"
echo "  开发者工具: F12"
echo "  控制台日志: 查看浏览器Console"
echo "  网络请求: 查看Network标签"
echo

echo "========================================"

# 尝试自动打开浏览器
echo -e "${BLUE}[浏览器]${NC} 尝试打开默认浏览器..."
if command -v open &> /dev/null; then
    # macOS
    open "http://localhost:$PORT" 2>/dev/null
elif command -v xdg-open &> /dev/null; then
    # Linux
    xdg-open "http://localhost:$PORT" 2>/dev/null
else
    echo -e "${YELLOW}[提示]${NC} 无法自动打开浏览器，请手动访问上述地址"
fi

echo
echo -e "${GREEN}[就绪]${NC} 服务器启动中..."
echo

# 切换到构建目录并启动服务器
cd "$BUILD_DIR"

# 创建简单的服务器日志
echo "[$(date)] 服务器启动 - 端口:$PORT" >> server.log

# 设置信号处理
trap 'echo -e "\n${YELLOW}[停止]${NC} 服务器已停止"; echo "[$(date)] 服务器停止" >> server.log; exit 0' INT

# 启动Python HTTP服务器
$PYTHON_CMD -m http.server $PORT

# 服务器停止后的清理
echo
echo -e "${YELLOW}[停止]${NC} 服务器已停止"
echo "[$(date)] 服务器停止" >> server.log

# 返回原目录
cd ../..

echo
echo -e "${GREEN}[完成]${NC} 感谢使用鲸鱼镇Web服务器！"
echo