"""
股票分析系统部署脚本
提供系统部署、配置和环境设置功能
"""

import os
import sys
import subprocess
import argparse
import platform
from pathlib import Path


class DeploymentManager:
	"""部署管理器类"""
	
	def __init__(self):
		self.project_root = Path(__file__).parent
		self.venv_path = self.project_root / 'venv'
		self.requirements_file = self.project_root / 'requirements.txt'
		self.config_dir = self.project_root / 'config'
		self.logs_dir = self.project_root / 'logs'
		self.data_dir = self.project_root / 'data'
		
		self.is_windows = platform.system() == 'Windows'
		self.is_linux = platform.system() == 'Linux'
		self.is_macos = platform.system() == 'Darwin'
	
	def check_environment(self):
		"""检查运行环境"""
		print("正在检查运行环境...")
		
		# 检查Python版本
		python_version = sys.version_info
		if python_version < (3, 8):
			print(f"错误: 需要Python 3.8或更高版本，当前版本: {python_version.major}.{python_version.minor}")
			return False
		
		print(f"✓ Python版本: {python_version.major}.{python_version.minor}.{python_version.micro}")
		
		# 检查操作系统
		print(f"✓ 操作系统: {platform.system()} {platform.release()}")
		
		# 检查必要工具
		tools = ['pip', 'git']
		for tool in tools:
			try:
				subprocess.run([tool, '--version'], capture_output=True, check=True)
				print(f"✓ {tool} 已安装")
			except (subprocess.CalledProcessError, FileNotFoundError):
				print(f"⚠ {tool} 未安装或不在PATH中")
		
		return True
	
	def create_virtual_environment(self):
		"""创建虚拟环境"""
		print("正在创建虚拟环境...")
		
		if self.venv_path.exists():
			print("虚拟环境已存在，跳过创建")
			return True
		
		try:
			subprocess.run([
				sys.executable, '-m', 'venv', str(self.venv_path)
			], check=True, cwd=self.project_root)
			
			print("✓ 虚拟环境创建成功")
			return True
			
		except subprocess.CalledProcessError as e:
			print(f"✗ 创建虚拟环境失败: {e}")
			return False
	
	def get_venv_python(self):
		"""获取虚拟环境中的Python路径"""
		if self.is_windows:
			return self.venv_path / 'Scripts' / 'python.exe'
		else:
			return self.venv_path / 'bin' / 'python'
	
	def get_venv_pip(self):
		"""获取虚拟环境中的pip路径"""
		if self.is_windows:
			return self.venv_path / 'Scripts' / 'pip.exe'
		else:
			return self.venv_path / 'bin' / 'pip'
	
	def install_dependencies(self):
		"""安装依赖包"""
		print("正在安装依赖包...")
		
		if not self.requirements_file.exists():
			print("✗ requirements.txt 文件不存在")
			return False
		
		try:
			pip_path = self.get_venv_pip()
			
			# 升级pip
			subprocess.run([str(pip_path), 'install', '--upgrade', 'pip'], check=True)
			
			# 安装依赖
			subprocess.run([
				str(pip_path), 'install', '-r', str(self.requirements_file)
			], check=True)
			
			print("✓ 依赖包安装成功")
			return True
			
		except subprocess.CalledProcessError as e:
			print(f"✗ 安装依赖包失败: {e}")
			return False
	
	def create_directories(self):
		"""创建必要的目录"""
		print("正在创建必要的目录...")
		
		directories = [self.logs_dir, self.data_dir]
		
		for directory in directories:
			try:
				directory.mkdir(exist_ok=True)
				print(f"✓ 创建目录: {directory}")
			except Exception as e:
				print(f"✗ 创建目录失败 {directory}: {e}")
				return False
		
		return True
	
	def setup_environment_variables(self):
		"""设置环境变量"""
		print("正在设置环境变量...")
		
		# 创建.env文件
		env_file = self.project_root / '.env'
		
		if not env_file.exists():
			try:
				with open(env_file, 'w', encoding='utf-8') as f:
					f.write("""# 股票分析系统环境配置
DATABASE_URL=sqlite:///stock_data.db
LOG_LEVEL=INFO
DEBUG=false

# 数据源配置
AKSHARE_BASE_URL=https://api.akshare.akfamily.xyz
BAOSTOCK_TIMEOUT=30

# 定时任务配置
SCHEDULER_ENABLED=true
DAILY_UPDATE_TIME=18:00

# 性能配置
MAX_CONCURRENT_TASKS=10
BATCH_SIZE=100
""")
				
				print("✓ 环境配置文件创建成功")
				
		except Exception as e:
			print(f"✗ 创建环境配置文件失败: {e}")
			return False
		
		return True
	
	def run_tests(self):
		"""运行测试"""
		print("正在运行测试...")
		
		try:
			python_path = self.get_venv_python()
			
			result = subprocess.run([
				str(python_path), '-m', 'pytest', 'tests/',
				'-v', '--tb=short'
			], cwd=self.project_root, capture_output=True, text=True)
			
			if result.returncode == 0:
				print("✓ 所有测试通过")
				return True
			else:
				print("✗ 测试失败")
				print(result.stdout)
				print(result.stderr)
				return False
			
		except Exception as e:
			print(f"✗ 运行测试失败: {e}")
			return False
	
	def create_startup_scripts(self):
		"""创建启动脚本"""
		print("正在创建启动脚本...")
		
		try:
			python_path = self.get_venv_python()
			run_script_path = self.project_root / 'run.py'
			
			if self.is_windows:
				# 创建Windows批处理文件
				batch_content = f"""@echo off
cd /d "{self.project_root}"
"{python_path}" "{run_script_path}" %*
pause
"""
				
				with open(self.project_root / 'start.bat', 'w', encoding='utf-8') as f:
					f.write(batch_content)
				
				print("✓ Windows启动脚本创建成功")
			
			# 创建Linux/Mac启动脚本
			shell_content = f"""#!/bin/bash
cd "{self.project_root}"
"{python_path}" "{run_script_path}" "$@"
"""
			
			with open(self.project_root / 'start.sh', 'w', encoding='utf-8') as f:
				f.write(shell_content)
			
			# 设置执行权限
			if not self.is_windows:
				os.chmod(self.project_root / 'start.sh', 0o755)
			
			print("✓ Linux/Mac启动脚本创建成功")
			
		except Exception as e:
			print(f"✗ 创建启动脚本失败: {e}")
			return False
		
		return True
	
	def create_service_scripts(self):
		"""创建服务脚本（用于生产环境）"""
		print("正在创建服务脚本...")
		
		try:
			python_path = self.get_venv_python()
			run_script_path = self.project_root / 'run.py'
			
			if self.is_linux:
				# 创建systemd服务文件
				service_content = f"""[Unit]
Description=Stock Analysis System
After=network.target

[Service]
Type=simple
User=stock
Group=stock
WorkingDirectory={self.project_root}
ExecStart={python_path} {run_script_path} scheduler
Restart=always
RestartSec=10

[Install]
WantedBy=multi-user.target
"""
				
				with open(self.project_root / 'stock-system.service', 'w', encoding='utf-8') as f:
					f.write(service_content)
				
				print("✓ systemd服务文件创建成功")
			
			# 创建supervisor配置
			supervisor_content = f"""[program:stock-system]
command={python_path} {run_script_path} scheduler
directory={self.project_root}
autostart=true
autorestart=true
user=stock
stdout_logfile={self.logs_dir}/supervisor.log
stderr_logfile={self.logs_dir}/supervisor_error.log
"""
			
			with open(self.project_root / 'stock-system.conf', 'w', encoding='utf-8') as f:
				f.write(supervisor_content)
			
			print("✓ supervisor配置创建成功")
			
		except Exception as e:
			print(f"✗ 创建服务脚本失败: {e}")
			return False
		
		return True
	
	def backup_database(self):
		"""备份数据库"""
		print("正在备份数据库...")
		
		db_file = self.project_root / 'stock_data.db'
		backup_dir = self.project_root / 'backups'
		
		if not db_file.exists():
			print("数据库文件不存在，跳过备份")
			return True
		
		try:
			backup_dir.mkdir(exist_ok=True)
			
			from datetime import datetime
			backup_file = backup_dir / f'stock_data_backup_{datetime.now().strftime("%Y%m%d_%H%M%S")}.db'
			
			import shutil
			shutil.copy2(db_file, backup_file)
			
			print(f"✓ 数据库备份成功: {backup_file}")
			return True
			
		except Exception as e:
			print(f"✗ 数据库备份失败: {e}")
			return False
	
	def deploy(self, skip_tests=False, production=False):
		"""执行完整部署流程"""
		print("开始部署股票分析系统...")
		print("=" * 50)
		
		# 检查环境
		if not self.check_environment():
			return False
		
		print("-" * 50)
		
		# 创建虚拟环境
		if not self.create_virtual_environment():
			return False
		
		print("-" * 50)
		
		# 安装依赖
		if not self.install_dependencies():
			return False
		
		print("-" * 50)
		
		# 创建目录
		if not self.create_directories():
			return False
		
		print("-" * 50)
		
		# 设置环境变量
		if not self.setup_environment_variables():
			return False
		
		print("-" * 50)
		
		# 运行测试
		if not skip_tests:
			if not self.run_tests():
				print("测试失败，是否继续部署? (y/N): ")
				response = input().strip().lower()
				if response != 'y':
					return False
		
		print("-" * 50)
		
		# 创建启动脚本
		if not self.create_startup_scripts():
			return False
		
		print("-" * 50)
		
		# 生产环境额外配置
		if production:
			if not self.create_service_scripts():
				return False
			
			if not self.backup_database():
				return False
		
		print("=" * 50)
		print("✓ 部署完成!")
		
		# 显示使用说明
		print("\n使用说明:")
		print("1. 启动系统: " + ("start.bat" if self.is_windows else "./start.sh"))
		print("2. 查看帮助: " + ("start.bat --help" if self.is_windows else "./start.sh --help"))
		print("3. 初始化数据: " + ("start.bat init" if self.is_windows else "./start.sh init"))
		
		return True


def main():
	"""主函数"""
	parser = argparse.ArgumentParser(description='股票分析系统部署工具')
	
	parser.add_argument(
		'--skip-tests',
		action='store_true',
		help='跳过测试'
	)
	
	parser.add_argument(
		'--production',
		action='store_true',
		help='生产环境部署'
	)
	
	parser.add_argument(
		'--backup-only',
		action='store_true',
		help='仅备份数据库'
	)
	
	args = parser.parse_args()
	
	deployer = DeploymentManager()
	
	if args.backup_only:
		deployer.backup_database()
	else:
		deployer.deploy(skip_tests=args.skip_tests, production=args.production)


if __name__ == '__main__':
	main()