//! Reminder endpoints for the dashboard.
//!
//! Lists pending reminders for the reminders tab, and lets the operator
//! cancel a pending reminder or reset its failure state so the scheduler
//! retries it on the next tick.

use axum::{
    extract::{Path as AxumPath, State},
    http::StatusCode,
    response::{IntoResponse, Response},
};

use problem_details::ProblemDetails;

use super::{AppState, error_response};

pub(super) async fn api_reminders(State(state): State<AppState>) -> Response {
    match state.coord.broker.list_pending_reminders() {
        Ok(rows) => axum::Json(rows).into_response(),
        Err(e) => error_response(&format!("reminders: {e:#}")),
    }
}

pub(super) async fn post_cancel_reminder(
    State(state): State<AppState>,
    AxumPath(id): AxumPath<i64>,
) -> Response {
    match state.coord.broker.cancel_reminder(id) {
        Ok(0) => ProblemDetails::from_status_code(StatusCode::NOT_FOUND)
            .with_detail(format!("reminder {id} not pending (already delivered?)"))
            .into_response(),
        Ok(_) => {
            tracing::info!(%id, "operator cancelled reminder");
            state.coord.emit_reminders_snapshot();
            (StatusCode::OK, "ok").into_response()
        }
        Err(e) => error_response(&format!("cancel reminder {id} failed: {e:#}")),
    }
}

/// Reset a pending reminder's failure state so the scheduler
/// retries it on the next tick. Useful when the failure was
/// transient (sqlite lock contention, disk full → freed up) and
/// the operator wants delivery to resume immediately instead of
/// the row sitting in attempt-count-capped purgatory.
pub(super) async fn post_retry_reminder(
    State(state): State<AppState>,
    AxumPath(id): AxumPath<i64>,
) -> Response {
    match state.coord.broker.reset_reminder_failure(id) {
        Ok(0) => ProblemDetails::from_status_code(StatusCode::NOT_FOUND)
            .with_detail(format!("reminder {id} not pending (already delivered?)"))
            .into_response(),
        Ok(_) => {
            tracing::info!(%id, "operator reset reminder failure for retry");
            state.coord.emit_reminders_snapshot();
            (StatusCode::OK, "ok").into_response()
        }
        Err(e) => error_response(&format!("retry reminder {id} failed: {e:#}")),
    }
}