/**
 * TODO file description
 */

#include <stdbool.h>
#include "app_gui.h"
#include "app_heater.h"
#include "app_buzzer.h"
#include "app_temp.h"
#include "FreeRTOS.h"
#include "task.h"
#include "queue.h"
#include "ufb/framebuffer.h"
#include "ufb/fb_text.h"

#define MAX_TEMP 400

static struct State {
  float oven_temp;
  float soc_temp;
  int set_temp;
  int set_temp_wheel;
  bool heater_enabled;
} s_app = {};

static void calc_set_temp() {
    int clamped = s_app.set_temp_wheel;
    if (clamped < 0) {
        clamped = 0;
    }
    s_app.set_temp = (clamped / 2) * 5;
    if (s_app.set_temp > MAX_TEMP) {
        s_app.set_temp = MAX_TEMP;
    }

    app_heater_set_target((float) s_app.set_temp);
}

void app_task_gui(void *argument) {
    // Wait until inited
    ulTaskNotifyTake(pdTRUE, portMAX_DELAY);
    PUTS("GUI task starts\r\n");

    char tmp[100];

    while (1) {
        s_app.oven_temp = app_temp_read_oven();
        s_app.soc_temp = app_temp_read_soc();

        uint32_t message = GUI_EVENT_NONE;
        osMessageQueueGet(guiEventQueHandle, &message, NULL, pdMS_TO_TICKS(1000));

        switch (message) {
            case GUI_NOTIFY_KNOB_PLUS:
                s_app.set_temp_wheel++;
                calc_set_temp();
                break;
            case GUI_NOTIFY_KNOB_MINUS:
                s_app.set_temp_wheel--;
                calc_set_temp();
                break;
            case GUI_NOTIFY_KNOB_PRESS:
                break;
            case GUI_NOTIFY_KNOB_RELEASE:
                s_app.heater_enabled ^= 1;
                app_heater_enable(s_app.heater_enabled);
                app_buzzer_beep();
                break;
            default:
                break;
        }

        fb_clear();

        SPRINTF(tmp, "T=%.1f°C", s_app.oven_temp);
        fb_text(3, 3, tmp, FONT_5X7, 1);

        SPRINTF(tmp, "Cil=%d°C", s_app.set_temp);
        fb_text(3, 11, tmp, FONT_5X7, 1);

        SPRINTF(tmp, "Stav=%s", s_app.heater_enabled ? "ZAP" : "VYP");
        fb_text(3, 19, tmp, FONT_5X7, 1);

        SPRINTF(tmp, "Tsoc=%.1f°C", s_app.soc_temp);
        fb_text(3, 27, tmp, FONT_5X7, 1);

        if (s_app.heater_enabled) {
            fb_frame(0, 0, FBW, FBH, 2, 1);
        }

        fb_blit();
    }
}