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::service::issues::labels::CreateLabelParams;
use crate::session::Session;

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

/// Create a label
///
/// Creates a new issue label in a repository.
/// Requires at least Member role in the repository.
///
/// Parameters:
/// - name: Label name (required, e.g., "bug", "feature")
/// - color: Hex color code (required, e.g., "#FF0000")
/// - description: Label description (optional)
///
/// Returns the created label with metadata.
#[utoipa::path(
    post,
    path = "/api/v1/workspaces/{workspace_name}/repos/{repo_name}/issues/labels",
    tag = "Issues",
    operation_id = "issueCreateLabel",
    params(PathParams),
    request_body(content = CreateLabelParams, description = "Label creation parameters", content_type = "application/json"),
    responses(
        (status = 201, description = "Label created successfully.", body = ApiResponse<IssueLabel>),
        (status = 400, description = "Invalid parameters: empty name or invalid color", body = ApiErrorResponse),
        (status = 401, description = "Authentication required or session expired", body = ApiErrorResponse),
        (status = 403, description = "Insufficient permissions (requires Member role)", 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 create_label(
    service: web::Data<AppService>,
    session: Session,
    path: web::Path<PathParams>,
    params: web::Json<CreateLabelParams>,
) -> Result<HttpResponse, AppError> {
    let label = service
        .issue
        .issue_create_label(
            &session,
            &path.workspace_name,
            &path.repo_name,
            params.into_inner(),
        )
        .await?;
    Ok(HttpResponse::Created().json(ApiResponse::new(label)))
}