from fastapi import APIRouter, Depends
from sqlalchemy.orm import Session

from app.core.config import settings
from app.core.response import ApiResponse, ok
from app.core.user_context import UserContext, get_user_context
from app.db.session import get_db
from app.schemas.agent import AgentHelloResponse, AgentHelloUser
from app.services.audit_service import AuditService

router = APIRouter()


@router.get("/agent/hello", response_model=ApiResponse[AgentHelloResponse])
def hello(ctx: UserContext = Depends(get_user_context), db: Session = Depends(get_db)):
    """Agent Hello：读取宿主用户上下文并返回 Demo 功能配置。"""
    AuditService(db).log(ctx, "agent.hello", "agent")
    db.commit()
    return ok(
        AgentHelloResponse(
            user=AgentHelloUser(
                user_id=ctx.user_id,
                tenant_id=ctx.tenant_id,
                role=ctx.role,
                source=ctx.auth_source,
                username=ctx.username,
                display_name=ctx.display_name,
            ),
            features=settings.as_public_dict(),
        )
    )