#include <stdio.h>
#include "app_gui.h"
#include "gui_event.h"
#include "ds_rtc.h"
#include "app_io.h"
#include "lcd.h"
#include "app_config.h"

static int threshold;
static int cursor;

void screen_set_moisture_threshold(GuiEvent event)
{
    char buf[100];

    switch (event) {
        case GUI_EVENT_SCREEN_INIT:
            threshold = 0;
            cursor = 0;
            break;

        case GUI_EVENT_PAINT:
            LcdBuffer_Write(&lcd, 0, 0, "Blokuj zálivku pokud");
            LcdBuffer_Write(&lcd, 1, 0, "je vlhkost vyšší než");

            LcdBuffer_SetCursor(&lcd, 2, cursor, (cursor < 3) ? CURSOR_BOTH : CURSOR_NONE);

            if (cursor > 0) {
                snprintf(buf, 100, "%d %%", threshold);
                LcdBuffer_Write(&lcd, 2, 0, buf);
            } else {
                LcdBuffer_Write(&lcd, 2, 0, "  %");
            }

            LcdBuffer_Write(&lcd, 3, 0, cursor == 0 ? "🅳Zrušit" : "🅳Zrušit 🅰Uložit");
            break;

        case GUI_EVENT_KEY_A: // Confirm
            if (cursor > 0) {
                settings_scratch.moisture_threshold_percent = threshold;
                switch_screen(screen_settings, false);
            }
            break;

        case GUI_EVENT_KEY_D: // CANCEL
            switch_screen(screen_settings, false);
            break;

        default:
            if (event >= '0' && event <= '9') {
                int digit = event - '0';
                int th2 = threshold * 10 + digit;
                if (th2 <= 100) {
                    threshold = th2;
                    cursor++;
                    request_paint();
                }
            }
    }
}