from fastapi import APIRouter, BackgroundTasks, Depends, HTTPException, Query, status
from sqlalchemy.ext.asyncio import AsyncSession

from app.database import get_db
from app.dependencies import get_current_admin
from app.schemas.admin import AdminAuditRequest, AdminBanRequest
from app.services.notify_service import send_audit_result
from app.services.admin_service import audit_user, ban_user, get_user_detail, list_users
from app.utils.media import sanitize_user_media_payload

router = APIRouter()


@router.get("")
async def get_pending_users(
    keyword: str | None = Query(default=None),
    audit_status: int | None = Query(default=None),
    gender: int | None = Query(default=None),
    only_pending: bool = Query(default=False),
    admin_payload: dict = Depends(get_current_admin),
    session: AsyncSession = Depends(get_db),
) -> dict:
    _ = admin_payload
    users = await list_users(
        session,
        keyword=keyword,
        audit_status=audit_status,
        gender=gender,
        only_pending=only_pending,
    )
    data = [
        sanitize_user_media_payload({
            "id": user.id,
            "nickname": user.nickname,
            "real_name": user.real_name,
            "gender": user.gender,
            "city": user.city,
            "avatar_url": user.avatar_url,
            "profile_images": user.profile_images,
            "audit_status": user.audit_status,
            "updated_at": user.updated_at.isoformat() if user.updated_at else None,
            "self_intro": user.self_intro,
        })
        for user in users
    ]
    return {"code": 0, "message": "ok", "data": data}


@router.put("/{user_id}/audit")
async def audit_pending_user(
    user_id: int,
    payload: AdminAuditRequest,
    background_tasks: BackgroundTasks,
    admin_payload: dict = Depends(get_current_admin),
    session: AsyncSession = Depends(get_db),
) -> dict:
    try:
        user = await audit_user(session, user_id, int(admin_payload["admin_id"]), payload)
    except ValueError as exc:
        raise HTTPException(status_code=status.HTTP_400_BAD_REQUEST, detail=str(exc)) from exc

    if user is None:
        raise HTTPException(status_code=status.HTTP_404_NOT_FOUND, detail="User not found")

    if user.subscribe_audit == 1 and user.openid:
        background_tasks.add_task(
            send_audit_result,
            user.openid,
            user.audit_status == 2,
            user.audit_remark or "",
        )

    return {
        "code": 0,
        "message": "ok",
        "data": {
            "id": user.id,
            "audit_status": user.audit_status,
            "audit_remark": user.audit_remark,
        },
    }


@router.get("/{user_id}")
async def get_user(
    user_id: int,
    admin_payload: dict = Depends(get_current_admin),
    session: AsyncSession = Depends(get_db),
) -> dict:
    _ = admin_payload
    user = await get_user_detail(session, user_id)
    if user is None:
        raise HTTPException(status_code=status.HTTP_404_NOT_FOUND, detail="User not found")

    data = sanitize_user_media_payload({
        "id": user.id,
        "nickname": user.nickname,
        "real_name": user.real_name,
        "gender": user.gender,
        "birth_year": user.birth_year,
        "city": user.city,
        "height": user.height,
        "education": user.education,
        "job_industry": user.job_industry,
        "job_company": user.job_company,
        "income_range": user.income_range,
        "self_intro": user.self_intro,
        "avatar_url": user.avatar_url,
        "profile_images": user.profile_images,
        "audit_status": user.audit_status,
        "audit_remark": user.audit_remark,
        "is_active": user.is_active,
        "ban_reason": user.ban_reason,
    })
    return {"code": 0, "message": "ok", "data": data}


@router.put("/{user_id}/ban")
async def ban_or_unban_user(
    user_id: int,
    payload: AdminBanRequest,
    admin_payload: dict = Depends(get_current_admin),
    session: AsyncSession = Depends(get_db),
) -> dict:
    _ = admin_payload
    user = await ban_user(session, user_id, payload)
    if user is None:
        raise HTTPException(status_code=status.HTTP_404_NOT_FOUND, detail="User not found")

    return {
        "code": 0,
        "message": "ok",
        "data": {
            "id": user.id,
            "is_active": user.is_active,
            "ban_reason": user.ban_reason,
        },
    }