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

use crate::api::response::{ApiResponse, ApiErrorResponse};
use crate::error::AppError;
use crate::models::repos::RepoRelease;
use crate::service::repo::releases::UpdateReleaseParams;
use crate::service::AppService;
use crate::session::Session;

#[derive(Debug, Deserialize, IntoParams)]
pub struct PathParams {
    /// Workspace name (unique identifier)
    pub workspace_name: String,
    /// Repository name (unique within the workspace)
    pub repo_name: String,
    /// Release ID (UUID)
    pub release_id: uuid::Uuid,
}

/// Update a release
///
/// Updates release metadata such as name, description, draft status, and prerelease flag.
/// Requires Write role or higher in the repository.
/// 
/// Updatable fields:
/// - name: Release name/title (max 255 characters)
/// - body: Release notes in markdown format (max 10000 characters)
/// - draft: Whether this is a draft release
/// - prerelease: Whether this is a prerelease
/// 
/// All fields are optional; only provided fields are updated.
/// Returns the updated release with full metadata.
#[utoipa::path(
    put,
    path = "/api/v1/workspaces/{workspace_name}/repos/{repo_name}/releases/{release_id}",
    tag = "Repos",
    operation_id = "repoUpdateRelease",
    params(PathParams),
    request_body(
        content = UpdateReleaseParams,
        description = "Release update parameters (all fields optional)",
        content_type = "application/json"
    ),
    responses(
        (status = 200, description = "Release updated successfully. Returns the updated release with full metadata.", body = ApiResponse<RepoRelease>),
        (status = 400, description = "Invalid parameters: name too long or invalid characters", body = ApiErrorResponse),
        (status = 401, description = "Authentication required or session expired", body = ApiErrorResponse),
        (status = 403, description = "Insufficient permissions (requires Write role or higher)", body = ApiErrorResponse),
        (status = 404, description = "Repository, workspace, or release not found", body = ApiErrorResponse),
        (status = 500, description = "Internal server error", body = ApiErrorResponse),
    ),
    security(
        ("session_cookie" = [])
    )
)]
pub async fn update_release(
    service: web::Data<AppService>,
    session: Session,
    path: web::Path<PathParams>,
    params: web::Json<UpdateReleaseParams>,
) -> Result<HttpResponse, AppError> {
    let release = service
        .repo
        .repo_update_release(
            &session,
            &path.workspace_name,
            &path.repo_name,
            path.release_id,
            params.into_inner(),
        )
        .await?;

    Ok(HttpResponse::Ok().json(ApiResponse::new(release)))
}