import json
import os
import logging

from telemetry import get_tracer
from util import api, oss
from services.template_service import DefaultTemplateService

logger = logging.getLogger("template")

# 全局模板服务实例
_template_service = None

def _get_template_service():
    """获取模板服务实例"""
    global _template_service
    if _template_service is None:
        _template_service = DefaultTemplateService()
    return _template_service

# 向后兼容的全局变量和函数
TEMPLATES = {}

def _update_templates_dict():
    """更新全局TEMPLATES字典以保持向后兼容"""
    service = _get_template_service()
    TEMPLATES.clear()
    TEMPLATES.update(service.templates)

def check_local_template(local_name):
    """向后兼容函数"""
    service = _get_template_service()
    template_def = service.templates.get(local_name)
    if template_def:
        try:
            service.validate_template(template_def)
        except Exception as e:
            logger.error(f"Template validation failed: {e}")
            raise

def load_template(template_name, local_path):
    """向后兼容函数"""
    service = _get_template_service()
    service._load_template(template_name, local_path)
    _update_templates_dict()

def load_local_template():
    """加载本地模板（向后兼容函数）"""
    service = _get_template_service()
    service.load_local_templates()
    _update_templates_dict()

def get_template_def(template_id):
    """获取模板定义（向后兼容函数）"""
    service = _get_template_service()
    template = service.get_template(template_id)
    _update_templates_dict()
    return template

def download_template(template_id):
    """下载模板（向后兼容函数）"""
    service = _get_template_service()
    success = service.download_template(template_id)
    _update_templates_dict()
    return success

def analyze_template(template_id):
    """分析模板（占位符函数）"""
    pass