# =============================================================================
# 企微IT智能服务台 — 阶段5 自动化 外部客户端工厂
# =============================================================================
# 说明：集中解析各外部系统的配置来源：
#   - 优先使用 settings 中的 AUTOMATION_* 环境变量（架构约定）
#   - 缺失时回退到既有 system_configs 表配置
#     （huorong/lianruan/ragflow 在 app/integrations/*/config.py 中已有 getter）
#
# 为什么有工厂：自动化引擎既能用新加的 AUTOMATION_* 配置，也能复用阶段1-4
# 已落地的集成配置，避免重复维护两套配置源。
# =============================================================================

from __future__ import annotations

import logging
from typing import Any, Callable, Optional

from sqlalchemy.ext.asyncio import AsyncSession

from app.config import settings

logger = logging.getLogger(__name__)


async def build_huorong_client(
    db: AsyncSession, audit: Optional[Callable[..., Any]] = None
):
    """构建火绒客户端：settings 优先，否则 system_configs。"""
    from app.integrations.huorong.client import HuorongClient

    if (
        settings.automation_huorong_base_url
        and settings.automation_huorong_access_key_id
        and settings.automation_huorong_access_key_secret
    ):
        return HuorongClient(
            access_key_id=settings.automation_huorong_access_key_id,
            access_key_secret=settings.automation_huorong_access_key_secret,
            base_url=settings.automation_huorong_base_url,
        )
    from app.integrations.huorong.config import get_huorong_client

    return await get_huorong_client(db)


async def build_lianruan_client(
    db: AsyncSession, audit: Optional[Callable[..., Any]] = None
):
    """构建联软客户端：settings 优先，否则 system_configs。"""
    from app.integrations.lianruan.client import LianruanClient

    if (
        settings.automation_lianruan_base_url
        and settings.automation_lianruan_api_account
        and settings.automation_lianruan_api_password
    ):
        return LianruanClient(
            base_url=settings.automation_lianruan_base_url,
            api_account=settings.automation_lianruan_api_account,
            api_password=settings.automation_lianruan_api_password,
            validate_key=settings.automation_lianruan_validate_key,
        )
    from app.integrations.lianruan.config import get_lianruan_client

    return await get_lianruan_client(db)


async def build_ragflow_client(
    db: AsyncSession, audit: Optional[Callable[..., Any]] = None
):
    """构建 RAGFlow 客户端：settings 优先，否则 system_configs。"""
    from app.integrations.ragflow.client import RagflowClient

    if settings.automation_ragflow_base_url and settings.automation_ragflow_api_key:
        return RagflowClient(
            api_key=settings.automation_ragflow_api_key,
            base_url=settings.automation_ragflow_base_url,
        )
    from app.integrations.ragflow.config import get_ragflow_client

    return await get_ragflow_client(db)


async def build_dify_client(audit: Optional[Callable[..., Any]] = None):
    """构建 Dify 客户端（仅 settings）。"""
    from app.integrations.dify import get_dify_client

    return await get_dify_client(audit=audit)


async def build_ehr_client(audit: Optional[Callable[..., Any]] = None):
    """构建 EHR 客户端（仅 settings）。"""
    from app.integrations.ehr import get_ehr_client

    return await get_ehr_client(audit=audit)