"""Invite routes for public check, user invites, and admin management."""

from fastapi import APIRouter, Depends, Query
from sqlalchemy import select
from sqlalchemy.ext.asyncio import AsyncSession

from auth import require_permission
from database import get_db
from mappers import InviteMapper
from models import Permission, User
from schemas import (
    AdminUserResponse,
    InviteCheckResponse,
    InviteCreate,
    InviteResponse,
    PaginatedInviteRecords,
    UserInviteResponse,
)
from services.invite import InviteService

router = APIRouter(prefix="/api/invites", tags=["invites"])
admin_router = APIRouter(prefix="/api/admin", tags=["admin"])


@router.get("/{identifier}/check", response_model=InviteCheckResponse)
async def check_invite(
    identifier: str,
    db: AsyncSession = Depends(get_db),
) -> InviteCheckResponse:
    """Check if an invite is valid and can be used for signup."""
    service = InviteService(db)
    return await service.check_invite_validity(identifier)


@router.get("", response_model=list[UserInviteResponse])
async def get_my_invites(
    db: AsyncSession = Depends(get_db),
    current_user: User = Depends(require_permission(Permission.VIEW_OWN_INVITES)),
) -> list[UserInviteResponse]:
    """Get all invites owned by the current user."""
    service = InviteService(db)
    invites = await service.get_user_invites(current_user.id)

    return [
        UserInviteResponse(
            id=invite.id,
            identifier=invite.identifier,
            status=invite.status.value,
            used_by_email=invite.used_by.email if invite.used_by else None,
            created_at=invite.created_at,
            spent_at=invite.spent_at,
        )
        for invite in invites
    ]


@admin_router.get("/users", response_model=list[AdminUserResponse])
async def list_users_for_admin(
    db: AsyncSession = Depends(get_db),
    _current_user: User = Depends(require_permission(Permission.MANAGE_INVITES)),
) -> list[AdminUserResponse]:
    """List all users for admin dropdowns (invite creation, etc.)."""
    # Note: UserRepository doesn't have list_all yet
    # For now, keeping direct query for this specific use case
    result = await db.execute(select(User.id, User.email).order_by(User.email))
    users = result.all()
    return [AdminUserResponse(id=u.id, email=u.email) for u in users]


@admin_router.post("/invites", response_model=InviteResponse)
async def create_invite(
    data: InviteCreate,
    db: AsyncSession = Depends(get_db),
    _current_user: User = Depends(require_permission(Permission.MANAGE_INVITES)),
) -> InviteResponse:
    """Create a new invite for a specified godfather user."""
    service = InviteService(db)
    invite = await service.create_invite(data.godfather_id)
    return InviteMapper.to_response(invite)


@admin_router.get("/invites", response_model=PaginatedInviteRecords)
async def list_all_invites(
    page: int = Query(1, ge=1),
    per_page: int = Query(10, ge=1, le=100),
    status_filter: str | None = Query(
        None, alias="status", description="Filter by status: ready, spent, revoked"
    ),
    godfather_id: int | None = Query(None, description="Filter by godfather user ID"),
    db: AsyncSession = Depends(get_db),
    _current_user: User = Depends(require_permission(Permission.MANAGE_INVITES)),
) -> PaginatedInviteRecords:
    """List all invites with optional filtering and pagination."""
    service = InviteService(db)
    return await service.list_invites(
        page=page,
        per_page=per_page,
        status_filter=status_filter,
        godfather_id=godfather_id,
    )


@admin_router.post("/invites/{invite_id}/revoke", response_model=InviteResponse)
async def revoke_invite(
    invite_id: int,
    db: AsyncSession = Depends(get_db),
    _current_user: User = Depends(require_permission(Permission.MANAGE_INVITES)),
) -> InviteResponse:
    """Revoke an invite. Only READY invites can be revoked."""
    service = InviteService(db)
    invite = await service.revoke_invite(invite_id)
    return InviteMapper.to_response(invite)


# All routers from this module for easy registration
routers = [router, admin_router]