#include <malloc.h>
#include <graphics/bitmaps.h>
#include <sys/param.h>
#include <string.h>
#include <stdio.h>

#include "liquid.h"
#include "graphics/drawing.h"

#include "scenes.h"
#include "scene_menu.h"

struct Priv {
    int32_t number;
};

static struct SceneEvent onSelect(struct MenuScene *self) {
    struct Priv *priv = self->extra;

    if (self->selected == 0) {
        return SceneEvent_Close(0, NULL);
    }

    if (self->selected == 8) {
        return SceneEvent_OpenChild(NewScene_Car(), 0);
    }
    if (self->selected == 9) {
        return SceneEvent_OpenChild(NewScene_Demo(), 0);
    }
    if (self->selected == 2) {
        struct NumberSceneOpts *opts = calloc(1, sizeof(struct NumberSceneOpts));
        strcpy(opts->unit, "°C");
        strcpy(opts->label, "Setpoint");
        opts->value = priv->number;
        opts->min = 0;
        opts->max = 350;
        return SceneEvent_OpenChild(NewScene_Number(opts), 99);
    }
    if (self->selected == 5) {
        self->items[5].tag++;
        snprintf(self->items[5].label, MENUITEM_LABEL_LEN, "Clicked %dx", self->items[5].tag);
        return SceneEvent_Repaint();
    }

    return SceneEvent_None();
}

static void priv_deinit(struct MenuScene *self)
{
    free(self->extra);
    self->extra = NULL;
}

static struct SceneEvent onChildReturn(struct MenuScene *self, uint32_t tag, int32_t status, void *data)
{
    struct Priv *priv = self->extra;
    if (tag == 99) {
        priv->number = status;
        snprintf(self->items[2].label, MENUITEM_LABEL_LEN, "Set=%d°C", priv->number);
    }

    // this should be unreachable
    return SceneEvent_None();
}

struct Scene *NewScene_MenuTest() {
    struct MenuItem *items = calloc(10, sizeof(struct MenuItem));

    strncpy(items[0].label, "🔙Back", MENUITEM_LABEL_LEN);
    strncpy(items[1].label, "▶#1", MENUITEM_LABEL_LEN);
    strncpy(items[2].label, "Set=0°C", MENUITEM_LABEL_LEN);
    strncpy(items[3].label, "▶#3", MENUITEM_LABEL_LEN);
    strncpy(items[4].label, "▶#4", MENUITEM_LABEL_LEN);
    strncpy(items[5].label, "Clicked 0x", MENUITEM_LABEL_LEN);
    strncpy(items[6].label, "▶#6", MENUITEM_LABEL_LEN);
    strncpy(items[7].label, "▶#7", MENUITEM_LABEL_LEN);
    strncpy(items[8].label, "Car", MENUITEM_LABEL_LEN);
    strncpy(items[9].label, "Demo Scene", MENUITEM_LABEL_LEN);
    
    struct MenuScene * scene = NewScene_Menu(items, 10);
    scene->onSelect = onSelect;

    // private data added by the subclass
    struct Priv *priv = calloc(1, sizeof(struct Priv));
    priv->number = 0;
    scene->extra = priv;
    scene->extra_deinit = (Scene_deinit_t) priv_deinit;

    // add a child return handler (base does not use this)
    scene->base.onChildReturn = (Scene_onChildReturn_t) onChildReturn;

    return (struct Scene *) scene;
}