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::Issue;
use crate::service::AppService;
use crate::session::Session;

#[derive(Debug, Deserialize, IntoParams)]
pub struct PathParams {
    pub workspace_name: String,
    pub number: i64,
}

/// Close an issue
///
/// Closes an open issue. The issue is marked as closed and the closing user is recorded.
/// Requires write access to the issue (author or workspace member).
///
/// Effects:
/// - Issue state changes to "closed"
/// - Closed by and closed at are recorded
/// - A "Closed" event is logged
///
/// Returns the closed issue with updated metadata.
#[utoipa::path(
    post,
    path = "/api/v1/workspaces/{workspace_name}/issues/{number}/close",
    tag = "Issues",
    operation_id = "issueClose",
    params(PathParams),
    responses(
        (status = 200, description = "Issue closed successfully. Returns the closed issue with updated metadata.", body = ApiResponse<Issue>),
        (status = 400, description = "Issue is already closed", body = ApiErrorResponse),
        (status = 401, description = "Authentication required or session expired", body = ApiErrorResponse),
        (status = 403, description = "Insufficient permissions to close this issue", body = ApiErrorResponse),
        (status = 404, description = "Workspace or issue not found", body = ApiErrorResponse),
        (status = 500, description = "Internal server error", body = ApiErrorResponse),
    ),
    security(
        ("session_cookie" = [])
    )
)]
pub async fn close(
    service: web::Data<AppService>,
    session: Session,
    path: web::Path<PathParams>,
) -> Result<HttpResponse, AppError> {
    let issue = service
        .issue
        .issue_close(&session, &path.workspace_name, path.number)
        .await?;
    Ok(HttpResponse::Ok().json(ApiResponse::new(issue)))
}