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

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

#[derive(Debug, Deserialize, IntoParams)]
pub struct PathParams {
    pub workspace_name: String,
    pub repo_name: String,
}

/// List labels in a repository
///
/// Returns all issue labels defined in the repository, sorted alphabetically.
/// Requires read access to the repository.
#[utoipa::path(
    get,
    path = "/api/v1/workspaces/{workspace_name}/repos/{repo_name}/issues/labels",
    tag = "Issues",
    operation_id = "issueListLabels",
    params(PathParams),
    responses(
        (status = 200, description = "Labels listed successfully.", body = ApiResponse<Vec<IssueLabel>>),
        (status = 401, description = "Authentication required or session expired", body = ApiErrorResponse),
        (status = 403, description = "Insufficient permissions", body = ApiErrorResponse),
        (status = 404, description = "Repository or workspace not found", body = ApiErrorResponse),
        (status = 500, description = "Internal server error", body = ApiErrorResponse),
    ),
    security(("session_cookie" = []))
)]
pub async fn list_labels(
    service: web::Data<AppService>,
    session: Session,
    path: web::Path<PathParams>,
) -> Result<HttpResponse, AppError> {
    let labels = service
        .issue
        .issue_labels(&session, &path.workspace_name, &path.repo_name)
        .await?;
    Ok(HttpResponse::Ok().json(ApiResponse::new(labels)))
}