config.py
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"""
Configuration management module for the Report Engine.
"""
import os
from dataclasses import dataclass
from typing import Optional
def _get_value(source, key: str, default=None, *fallback_keys: str):
candidates = (key,) + fallback_keys
value = None
for candidate in candidates:
if isinstance(source, dict):
value = source.get(candidate)
else:
value = getattr(source, candidate, None)
if value not in (None, ""):
break
if value in (None, ""):
for candidate in candidates:
env_val = os.getenv(candidate)
if env_val not in (None, ""):
value = env_val
break
return value if value not in (None, "") else default
@dataclass
class Config:
"""Report Engine configuration."""
llm_api_key: Optional[str] = None
llm_base_url: Optional[str] = None
llm_model_name: Optional[str] = None
llm_provider: Optional[str] = None # compatibility
max_content_length: int = 200000
output_dir: str = "final_reports"
template_dir: str = "ReportEngine/report_template"
api_timeout: float = 900.0
max_retry_delay: float = 180.0
max_retries: int = 8
log_file: str = "logs/report.log"
enable_pdf_export: bool = True
chart_style: str = "modern"
def __post_init__(self):
if not self.llm_provider and self.llm_model_name:
self.llm_provider = self.llm_model_name
def validate(self) -> bool:
if not self.llm_api_key:
print("错误: Report Engine LLM API Key 未设置 (REPORT_ENGINE_API_KEY)。")
return False
if not self.llm_model_name:
print("错误: Report Engine 模型名称未设置 (REPORT_ENGINE_MODEL_NAME)。")
return False
return True
@classmethod
def from_file(cls, config_file: str) -> "Config":
if config_file.endswith(".py"):
import importlib.util
spec = importlib.util.spec_from_file_location("config", config_file)
config_module = importlib.util.module_from_spec(spec)
spec.loader.exec_module(config_module)
return cls(
llm_api_key=_get_value(config_module, "REPORT_ENGINE_API_KEY"),
llm_base_url=_get_value(config_module, "REPORT_ENGINE_BASE_URL"),
llm_model_name=_get_value(config_module, "REPORT_ENGINE_MODEL_NAME"),
max_content_length=int(_get_value(config_module, "MAX_CONTENT_LENGTH", 200000)),
output_dir=_get_value(config_module, "REPORT_OUTPUT_DIR", "final_reports"),
template_dir=_get_value(config_module, "TEMPLATE_DIR", "ReportEngine/report_template"),
api_timeout=float(_get_value(config_module, "REPORT_API_TIMEOUT", 900.0)),
max_retry_delay=float(_get_value(config_module, "REPORT_MAX_RETRY_DELAY", 180.0)),
max_retries=int(_get_value(config_module, "REPORT_MAX_RETRIES", 8)),
log_file=_get_value(config_module, "REPORT_LOG_FILE", "logs/report.log"),
enable_pdf_export=str(
_get_value(config_module, "ENABLE_PDF_EXPORT", "true")
).lower()
in ("true", "1", "yes"),
chart_style=_get_value(config_module, "CHART_STYLE", "modern"),
)
config_dict = {}
if os.path.exists(config_file):
with open(config_file, "r", encoding="utf-8") as f:
for line in f:
line = line.strip()
if line and not line.startswith("#") and "=" in line:
key, value = line.split("=", 1)
config_dict[key.strip()] = value.strip()
return cls(
llm_api_key=_get_value(config_dict, "REPORT_ENGINE_API_KEY"),
llm_base_url=_get_value(config_dict, "REPORT_ENGINE_BASE_URL"),
llm_model_name=_get_value(config_dict, "REPORT_ENGINE_MODEL_NAME"),
max_content_length=int(_get_value(config_dict, "MAX_CONTENT_LENGTH", 200000)),
output_dir=_get_value(config_dict, "REPORT_OUTPUT_DIR", "final_reports"),
template_dir=_get_value(config_dict, "TEMPLATE_DIR", "ReportEngine/report_template"),
api_timeout=float(_get_value(config_dict, "REPORT_API_TIMEOUT", 900.0)),
max_retry_delay=float(_get_value(config_dict, "REPORT_MAX_RETRY_DELAY", 180.0)),
max_retries=int(_get_value(config_dict, "REPORT_MAX_RETRIES", 8)),
log_file=_get_value(config_dict, "REPORT_LOG_FILE", "logs/report.log"),
enable_pdf_export=str(
_get_value(config_dict, "ENABLE_PDF_EXPORT", "true")
).lower()
in ("true", "1", "yes"),
chart_style=_get_value(config_dict, "CHART_STYLE", "modern"),
)
def load_config(config_file: Optional[str] = None) -> Config:
if config_file:
if not os.path.exists(config_file):
raise FileNotFoundError(f"配置文件不存在: {config_file}")
file_to_load = config_file
else:
for candidate in ("config.py", "config.env", ".env"):
if os.path.exists(candidate):
file_to_load = candidate
print(f"已找到配置文件: {candidate}")
break
else:
raise FileNotFoundError("未找到配置文件，请创建 config.py。")
config = Config.from_file(file_to_load)
if not config.validate():
raise ValueError("Report Engine 配置校验失败，请检查 config.py 中的相关配置。")
return config
def print_config(config: Config):
print("\n=== Report Engine 配置 ===")
print(f"LLM 模型: {config.llm_model_name}")
print(f"LLM Base URL: {config.llm_base_url or '(默认)'}")
print(f"最大内容长度: {config.max_content_length}")
print(f"输出目录: {config.output_dir}")
print(f"模板目录: {config.template_dir}")
print(f"API 超时时间: {config.api_timeout} 秒")
print(f"最大重试间隔: {config.max_retry_delay} 秒")
print(f"最大重试次数: {config.max_retries}")
print(f"日志文件: {config.log_file}")
print(f"PDF 导出: {config.enable_pdf_export}")
print(f"图表样式: {config.chart_style}")
print(f"LLM API Key: {'已配置' if config.llm_api_key else '未配置'}")
print("========================\n")