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

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

#[derive(Debug, Deserialize, IntoParams)]
pub struct PathParams {
    pub template_id: uuid::Uuid,
}

/// Get a notification template by ID (requires system admin)
#[utoipa::path(
    get,
    path = "/api/v1/notifications/templates/{template_id}",
    tag = "Notifications",
    operation_id = "notificationGetTemplate",
    params(PathParams),
    responses(
        (status = 200, description = "Template retrieved", body = ApiResponse<NotificationTemplate>),
        (status = 401, description = "Authentication required or session expired", body = ApiErrorResponse),
        (status = 403, description = "System admin access required", body = ApiErrorResponse),
        (status = 404, description = "Template not found", body = ApiErrorResponse),
        (status = 500, description = "Internal server error", body = ApiErrorResponse),
    ),
    security(
        ("session_cookie" = [])
    )
)]
pub async fn get_template(
    service: web::Data<AppService>,
    session: Session,
    path: web::Path<PathParams>,
) -> Result<HttpResponse, AppError> {
    let result = service
        .notify
        .get_template(&session, path.template_id)
        .await?;
    Ok(HttpResponse::Ok().json(ApiResponse::new(result)))
}