#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""
DataOps-platform 项目启动脚本
"""

import os
import sys
import subprocess
import platform

def check_python_version():
    """检查Python版本"""
    if sys.version_info < (3, 8):
        print("错误: 需要Python 3.8或更高版本")
        print(f"当前版本: {sys.version}")
        return False
    print(f"Python版本: {sys.version}")
    return True

def create_virtual_env():
    """创建虚拟环境"""
    if not os.path.exists("venv"):
        print("创建虚拟环境...")
        try:
            subprocess.run([sys.executable, "-m", "venv", "venv"], check=True)
            print("虚拟环境创建成功")
        except subprocess.CalledProcessError:
            print("错误: 创建虚拟环境失败")
            return False
    else:
        print("虚拟环境已存在")
    return True

def activate_virtual_env():
    """激活虚拟环境"""
    if platform.system() == "Windows":
        activate_script = os.path.join("venv", "Scripts", "activate.bat")
        if os.path.exists(activate_script):
            print("激活虚拟环境...")
            # 在Windows上，我们需要使用cmd来运行activate.bat
            os.system(f'cmd /c "{activate_script} && pip install -r requirements.txt"')
        else:
            print("错误: 虚拟环境激活脚本未找到")
            return False
    else:
        activate_script = os.path.join("venv", "bin", "activate")
        if os.path.exists(activate_script):
            print("激活虚拟环境...")
            os.system(f"source {activate_script} && pip install -r requirements.txt")
        else:
            print("错误: 虚拟环境激活脚本未找到")
            return False
    return True

def install_dependencies():
    """安装项目依赖"""
    print("安装项目依赖...")
    try:
        if platform.system() == "Windows":
            subprocess.run([os.path.join("venv", "Scripts", "python.exe"), "-m", "pip", "install", "-r", "requirements.txt"], check=True)
        else:
            subprocess.run([os.path.join("venv", "bin", "python"), "-m", "pip", "install", "-r", "requirements.txt"], check=True)
        print("依赖安装成功")
        return True
    except subprocess.CalledProcessError:
        print("错误: 依赖安装失败")
        return False

def set_environment_variables():
    """设置环境变量"""
    os.environ["FLASK_ENV"] = "development"
    os.environ["FLASK_APP"] = "application.py"
    os.environ["FLASK_DEBUG"] = "1"
    print("环境变量设置完成")

def run_application():
    """运行应用"""
    print("启动DataOps-platform...")
    print("访问地址: http://localhost:5500")
    print("按 Ctrl+C 停止应用")
    print("-" * 50)
    
    try:
        if platform.system() == "Windows":
            subprocess.run([os.path.join("venv", "Scripts", "python.exe"), "application.py"])
        else:
            subprocess.run([os.path.join("venv", "bin", "python"), "application.py"])
    except KeyboardInterrupt:
        print("\n应用已停止")
    except Exception as e:
        print(f"启动应用时出错: {e}")

def main():
    """主函数"""
    print("=" * 50)
    print("DataOps-platform 项目启动器")
    print("=" * 50)
    
    # 检查Python版本
    if not check_python_version():
        return
    
    # 创建虚拟环境
    if not create_virtual_env():
        return
    
    # 安装依赖
    if not install_dependencies():
        return
    
    # 设置环境变量
    set_environment_variables()
    
    # 运行应用
    run_application()

if __name__ == "__main__":
    main()