use actix_web::{HttpResponse, web};
use serde::Deserialize;

use crate::api::response::{ApiErrorResponse, ApiResponse};
use crate::error::AppError;
use crate::models::workspaces::WorkspaceInvitation;
use crate::service::AppService;
use crate::session::Session;

#[derive(Deserialize, utoipa::IntoParams)]
pub struct InvitationsQuery {
    pub limit: Option<i64>,
    pub offset: Option<i64>,
}

#[utoipa::path(
    get,
    path = "/api/v1/workspaces/{workspace_name}/invitations",
    tag = "Workspaces",
    operation_id = "workspaceListInvitations",
    summary = "List pending invitations",
    description = "Return pending (un-expired, un-revoked, un-accepted) invitations for a workspace. Requires admin role.",
    params(
        ("workspace_name" = String, Path, description = "Workspace name."),
        InvitationsQuery
    ),
    responses(
        (status = 200, description = "List of invitations.", body = ApiResponse<Vec<WorkspaceInvitation>>),
        (status = 401, description = "Unauthenticated or insufficient role.", body = ApiErrorResponse),
        (status = 500, description = "Database read failed.", body = ApiErrorResponse)
    )
)]
pub async fn handle(
    service: web::Data<AppService>,
    session: Session,
    path: web::Path<String>,
    query: web::Query<InvitationsQuery>,
) -> Result<HttpResponse, AppError> {
    let ws = service.workspace.find_workspace_by_name(&path).await?;
    let data = service
        .workspace
        .workspace_invitations(
            &session,
            &ws,
            query.limit.unwrap_or(50),
            query.offset.unwrap_or(0),
        )
        .await?;
    Ok(HttpResponse::Ok().json(ApiResponse::new(data)))
}