/* Copyright (c) 2025 Rodrigo Arias Mallo <rodarima@gmail.com>
 * SPDX-License-Identifier: GPL-3.0-or-later */

#ifndef BARISTA_OVERHEAT_H
#define BARISTA_OVERHEAT_H

#ifdef __cplusplus
extern "C" {
#endif

#define OVH_NSAMPLES	20
#define OVH_INTERVAL	200 /* ms */
#define OVH_THRESHOLD	2.0 /* °C */

struct overheat {
	unsigned long last_time;
	float temp[OVH_NSAMPLES];
	int next;
	int n;
	float delta;
};

void overheat_init(struct overheat *o);
void overheat_input(struct overheat *o, unsigned long t_ms, float temp);
float overheat_delta(struct overheat *o);
int overheat_panic(struct overheat *o);

#ifdef __cplusplus
}
#endif

#endif /* BARISTA_OVERHEAT_H */