//! Notification preference management.

use axum::{
    extract::State,
    response::{Html, IntoResponse, Response},
    Form,
};
use serde::Deserialize;

use crate::{
    auth::AuthUser,
    db,
    error::Result,
    templates::SaveStatusTemplate,
    AppState,
};

/// Form input for notification preferences (checkbox values: "on" or absent).
#[derive(Debug, Deserialize)]
pub struct UpdatePreferencesForm {
    pub notify_sale: Option<String>,
    pub notify_follower: Option<String>,
    pub notify_release: Option<String>,
    pub login_notification_enabled: Option<String>,
    pub notify_issues: Option<String>,
    pub notify_status: Option<String>,
    pub tips_enabled: Option<String>,
    pub notify_tip: Option<String>,
}

/// Update the authenticated user's notification preferences.
#[tracing::instrument(skip_all, name = "users::update_preferences")]
pub(in crate::routes::api) async fn update_preferences(
    State(state): State<AppState>,
    AuthUser(user): AuthUser,
    Form(form): Form<UpdatePreferencesForm>,
) -> Result<Response> {
    let notify_sale = form.notify_sale.as_deref() == Some("on");
    let notify_follower = form.notify_follower.as_deref() == Some("on");
    let notify_release = form.notify_release.as_deref() == Some("on");
    let login_notification_enabled = form.login_notification_enabled.as_deref() == Some("on");
    let notify_issues = form.notify_issues.as_deref() == Some("on");
    let notify_status = form.notify_status.as_deref() == Some("on");
    let tips_enabled = form.tips_enabled.as_deref() == Some("on");
    let notify_tip = form.notify_tip.as_deref() == Some("on");

    db::users::update_notification_preferences(&state.db, user.id, notify_sale, notify_follower, notify_release, login_notification_enabled, notify_issues, notify_status).await?;
    db::users::update_tip_preferences(&state.db, user.id, tips_enabled, notify_tip).await?;

    Ok(Html(SaveStatusTemplate {
        success: true,
        message: "Preferences saved".to_string(),
    }.render_string()).into_response())
}