"""Community mutations — discussions, meetups, gigs, notifications."""

from fastapi import APIRouter, Header, HTTPException, Query

from app.schemas import (
  CreateDiscussionRequest, CreateGigRequest, CreateMeetupRequest, CreateReplyRequest,
  FeedbackRequest, GigApplyRequest, GigItem, NotificationItem, StatsOverview,
)
from app.services.auth import get_user_by_token
from app.services import community_store, social_store

router = APIRouter(tags=["community"])


def _user(authorization: str | None) -> dict:
  if not authorization or not authorization.startswith("Bearer "):
    raise HTTPException(401, "未登录")
  user = get_user_by_token(authorization[7:])
  if not user:
    raise HTTPException(401, "未登录")
  return user


@router.post("/discussions")
async def create_discussion(body: CreateDiscussionRequest, authorization: str | None = Header(None)):
  user = _user(authorization)
  d = community_store.create_discussion(user["id"], user["name"], body.model_dump())
  return {"success": True, "discussion": d}


@router.post("/discussions/{discussion_id}/replies")
async def post_reply(
  discussion_id: str,
  body: CreateReplyRequest,
  authorization: str | None = Header(None),
):
  user = _user(authorization)
  reply = community_store.add_reply(discussion_id, user["id"], user["name"], body.content, body.author_emoji)
  if not reply:
    raise HTTPException(404, "讨论不存在")
  return {"success": True, "reply": reply}


@router.post("/discussions/{discussion_id}/like")
async def like_discussion(discussion_id: str, authorization: str | None = Header(None)):
  user = _user(authorization)
  return community_store.toggle_discussion_like(discussion_id, user["id"])


@router.post("/discussions/{discussion_id}/pin")
async def pin_discussion(discussion_id: str, authorization: str | None = Header(None)):
  user = _user(authorization)
  d = community_store.toggle_pin(discussion_id, user["id"])
  if not d:
    raise HTTPException(403, "仅作者可置顶")
  return {"success": True, "discussion": d}


@router.post("/meetups")
async def create_meetup(body: CreateMeetupRequest, authorization: str | None = Header(None)):
  user = _user(authorization)
  m = community_store.create_meetup(user["id"], user["name"], body.model_dump())
  return {"success": True, "meetup": m}


@router.get("/meetups/my-rsvp")
async def my_rsvps(authorization: str | None = Header(None)):
  user = _user(authorization)
  return {"ids": list(community_store.user_rsvp_ids(user["id"]))}


@router.get("/gigs", response_model=list[GigItem])
async def list_gigs():
  return [GigItem(**g) for g in community_store.list_gigs()]


@router.post("/gigs")
async def create_gig(body: CreateGigRequest, authorization: str | None = Header(None)):
  user = _user(authorization)
  g = community_store.create_gig(user["id"], user["name"], body.model_dump())
  return {"success": True, "gig": g}


@router.post("/gigs/{gig_id}/apply")
async def apply_gig(gig_id: str, body: GigApplyRequest, authorization: str | None = Header(None)):
  user = _user(authorization)
  res = community_store.apply_gig(gig_id, user["id"], user["name"], body.message)
  if not res.get("ok"):
    raise HTTPException(400, res.get("error", "申请失败"))
  return res


@router.get("/notifications", response_model=list[NotificationItem])
async def list_notifications(authorization: str | None = Header(None)):
  user = _user(authorization)
  return [NotificationItem(**n) for n in community_store.list_notifications(user["id"])]


@router.post("/notifications/read")
async def mark_read(authorization: str | None = Header(None)):
  user = _user(authorization)
  community_store.mark_notifications_read(user["id"])
  return {"success": True}


@router.post("/notifications/{notif_id}/{action}")
async def notification_action(notif_id: str, action: str, authorization: str | None = Header(None)):
  user = _user(authorization)
  if action not in ("read", "unread", "archive", "restore", "pin", "unpin"):
    raise HTTPException(400, "无效操作")
  n = community_store.update_notification(user["id"], notif_id, action)
  if not n:
    raise HTTPException(404, "通知不存在")
  return {"success": True, "notification": n}


@router.post("/feedback")
async def submit_feedback(body: FeedbackRequest, authorization: str | None = Header(None)):
  user = None
  name = body.name or "访客"
  if authorization and authorization.startswith("Bearer "):
    user = get_user_by_token(authorization[7:])
    if user:
      name = user["name"]
  item = community_store.add_feedback(user["id"] if user else None, name, body.content, body.category)
  return {"success": True, "id": item["id"]}


@router.get("/stats/overview", response_model=StatsOverview)
async def stats_overview():
  return StatsOverview(**community_store.stats_overview())


@router.get("/members/{user_id}")
async def public_member(user_id: str):
  profile = social_store.get_public_profile(user_id)
  if not profile:
    raise HTTPException(404, "用户不存在")
  return profile