#!/bin/bash

# 日志监控脚本 - 实时监控前后端日志
# 作者: Qwen Assistant
# 功能: 实时显示后端和前端日志

# 颜色定义
RED='\033[0;31m'
GREEN='\033[0;32m'
YELLOW='\033[1;33m'
BLUE='\033[0;34m'
PURPLE='\033[0;35m'
CYAN='\033[0;36m'
NC='\033[0m' # No Color

# 打印带颜色的消息
print_message() {
    local color=$1
    local message=$2
    echo -e "${color}${message}${NC}"
}

print_message $BLUE "📋 WordMaster Pro 日志监控面板"

# 检查应用是否正在运行
if [ ! -f ".backend.pid" ] || [ ! -f ".frontend.pid" ]; then
    print_message $YELLOW "⚠️  应用程序似乎未运行"
    print_message $CYAN "   提示: 请先运行 ./start_app.sh 启动应用程序"
    exit 1
fi

BACKEND_PID=$(cat .backend.pid)
FRONTEND_PID=$(cat .frontend.pid)

if ! ps -p $BACKEND_PID > /dev/null 2>&1; then
    print_message $YELLOW "⚠️  后端进程 (PID: $BACKEND_PID) 未运行"
else
    print_message $GREEN "✅ 后端进程 (PID: $BACKEND_PID) 正在运行"
fi

if ! ps -p $FRONTEND_PID > /dev/null 2>&1; then
    print_message $YELLOW "⚠️  前端进程 (PID: $FRONTEND_PID) 未运行"
else
    print_message $GREEN "✅ 前端进程 (PID: $FRONTEND_PID) 正在运行"
fi

echo ""
print_message $BLUE "🔍 选择监控选项:"

echo "1) 监控后端日志 (实时)"
echo "2) 监控前端日志 (实时)"
echo "3) 同时监控所有日志 (分割显示)"
echo "4) 显示最近的日志 (各10行)"
echo ""
read -p "请选择 (1-4): " choice

case $choice in
    1)
        print_message $CYAN "📡 实时监控后端日志..."
        print_message $YELLOW "按 Ctrl+C 退出监控"
        tail -f backend/backend.log
        ;;
    2)
        print_message $CYAN "🎨 实时监控前端日志..."
        print_message $YELLOW "按 Ctrl+C 退出监控"
        tail -f frontend/frontend.log
        ;;
    3)
        print_message $CYAN "🔄 同时监控前后端日志..."
        print_message $YELLOW "按 Ctrl+C 退出监控"
        # Use multitail if available, otherwise use a simple approach
        if command -v multitail &> /dev/null; then
            multitail backend/backend.log frontend/frontend.log
        else
            print_message $YELLOW "💡 提示: 安装 multitail 可获得更好的多日志监控体验: brew install multitail"
            print_message $YELLOW "当前使用简单模式监控 (混合输出):"
            tail -f backend/backend.log frontend/frontend.log
        fi
        ;;
    4)
        print_message $BLUE "📋 后端日志最后10行:"
        if [ -f "backend/backend.log" ]; then
            tail -10 backend/backend.log
        else
            print_message $YELLOW "   未找到后端日志文件"
        fi
        
        echo ""
        print_message $BLUE "📋 前端日志最后10行:"
        if [ -f "frontend/frontend.log" ]; then
            tail -10 frontend/frontend.log
        else
            print_message $YELLOW "   未找到前端日志文件"
        fi
        echo ""
        ;;
    *)
        print_message $RED "❌ 无效选择"
        ;;
esac