from __future__ import annotations
from fastapi import APIRouter, Depends, HTTPException
from sqlalchemy.orm import Session
from sqlalchemy import func as sqlfunc

from app.database import get_db
from app.auth import get_current_user
from app.models.contact import ContactChannel, ContactConfig
from app.schemas.contact import ContactChannelSchema, ContactChannelResponse, ContactConfigSchema

router = APIRouter(prefix="/api/contact", tags=["联系方式"], dependencies=[Depends(get_current_user)])


@router.get("/channels", response_model=list[ContactChannelResponse])
def list_channels(db: Session = Depends(get_db)):
    channels = db.query(ContactChannel).order_by(ContactChannel.sort_order).all()
    return [ContactChannelResponse.model_validate(c) for c in channels]


@router.post("/channels", response_model=ContactChannelResponse, status_code=201)
def create_channel(req: ContactChannelSchema, db: Session = Depends(get_db)):
    max_order = db.query(sqlfunc.max(ContactChannel.sort_order)).scalar() or 0
    ch = ContactChannel(**req.model_dump(), sort_order=max_order + 1)
    db.add(ch)
    db.commit()
    db.refresh(ch)
    return ContactChannelResponse.model_validate(ch)


@router.put("/channels/{ch_id}", response_model=ContactChannelResponse)
def update_channel(ch_id: int, req: ContactChannelSchema, db: Session = Depends(get_db)):
    ch = db.query(ContactChannel).get(ch_id)
    if not ch:
        raise HTTPException(status_code=404, detail="联系方式不存在")
    for key, val in req.model_dump().items():
        setattr(ch, key, val)
    db.commit()
    db.refresh(ch)
    return ContactChannelResponse.model_validate(ch)


@router.delete("/channels/{ch_id}")
def delete_channel(ch_id: int, db: Session = Depends(get_db)):
    ch = db.query(ContactChannel).get(ch_id)
    if not ch:
        raise HTTPException(status_code=404, detail="联系方式不存在")
    db.delete(ch)
    db.commit()
    return {"message": "删除成功"}


@router.get("/config", response_model=ContactConfigSchema)
def get_config(db: Session = Depends(get_db)):
    config = db.query(ContactConfig).first()
    if not config:
        return ContactConfigSchema()
    return ContactConfigSchema(security_notice=config.security_notice)


@router.put("/config")
def update_config(req: ContactConfigSchema, db: Session = Depends(get_db)):
    config = db.query(ContactConfig).first()
    if not config:
        config = ContactConfig()
        db.add(config)
    config.security_notice = req.security_notice
    db.commit()
    return {"message": "更新成功"}