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

use crate::api::response::{ApiErrorResponse, ApiResponse};
use crate::error::AppError;
use crate::models::repos::Repo;
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,
}

/// Get a specific repository
///
/// Returns detailed information about a specific repository identified by workspace and repository name.
/// Access is determined by repository visibility:
/// - Public repositories: accessible to all authenticated users
/// - Private repositories: accessible only to repository members and workspace owners
/// - Internal repositories: accessible to all workspace members
///
/// Returns 404 if the repository doesn't exist or the user lacks access permissions.
#[utoipa::path(
    get,
    path = "/api/v1/workspaces/{workspace_name}/repos/{repo_name}",
    tag = "Repos",
    operation_id = "repoGet",
    params(PathParams),
    responses(
        (status = 200, description = "Repository retrieved successfully. Returns complete repository metadata including visibility, default branch, creation date, and statistics.", body = ApiResponse<Repo>),
        (status = 401, description = "Authentication required or session expired", body = ApiErrorResponse),
        (status = 403, description = "Insufficient permissions to access this repository", body = ApiErrorResponse),
        (status = 404, description = "Repository not found or access denied", body = ApiErrorResponse),
        (status = 500, description = "Internal server error", body = ApiErrorResponse),
    ),
    security(
        ("session_cookie" = [])
    )
)]
pub async fn get(
    service: web::Data<AppService>,
    session: Session,
    path: web::Path<PathParams>,
) -> Result<HttpResponse, AppError> {
    let repo = service
        .repo
        .repo_get(&session, &path.workspace_name, &path.repo_name)
        .await?;

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