use actix_web::{HttpResponse, web};

use crate::api::response::{ApiErrorResponse, ApiResponse};
use crate::error::AppError;
use crate::models::users::User;
use crate::service::AppService;
use crate::service::user::account::UpdateUserAccountParams;
use crate::session::Session;

/// Update user account
///
/// Updates the authenticated user's account settings.
/// Requires authentication.
///
/// Updatable fields:
/// - username: New username (must be unique across the platform)
/// - display_name: Human-readable display name
/// - bio: Short biography text
/// - visibility: Profile visibility ("public", "private", or "internal")
///
/// All fields are optional; only provided fields are updated.
/// Returns the updated user account with all metadata.
#[utoipa::path(
    put,
    path = "/api/v1/user/account",
    tag = "User",
    operation_id = "userUpdateAccount",
    request_body(
        content = UpdateUserAccountParams,
        description = "Account update parameters (all fields optional)",
        content_type = "application/json"
    ),
    responses(
        (status = 200, description = "Account updated successfully. Returns updated user account with all metadata.", body = ApiResponse<User>),
        (status = 400, description = "Invalid parameters: empty username or unsupported visibility value", body = ApiErrorResponse),
        (status = 401, description = "Authentication required or session expired", body = ApiErrorResponse),
        (status = 404, description = "User not found", body = ApiErrorResponse),
        (status = 409, description = "Username already taken", body = ApiErrorResponse),
        (status = 500, description = "Internal server error", body = ApiErrorResponse),
    ),
    security(
        ("session_cookie" = [])
    )
)]
pub async fn update_account(
    service: web::Data<AppService>,
    session: Session,
    params: web::Json<UpdateUserAccountParams>,
) -> Result<HttpResponse, AppError> {
    let user = service
        .user
        .user_update_account(&session, params.into_inner())
        .await?;
    Ok(HttpResponse::Ok().json(ApiResponse::new(user)))
}