#include "lvgl.h"
#include "battery_indicator.h"
#include "battery_indicator_private.h"
#include "src/core/lv_obj_class_private.h"

#define MY_CLASS (&lv_battery_indicator_class)

LV_FONT_DECLARE(lv_font_din_16);

static void lv_battery_indicator_constructor(const lv_obj_class_t* class_p, lv_obj_t* obj);
static void lv_battery_indicator_event(const lv_obj_class_t* class_p, lv_event_t* e);


const lv_obj_class_t lv_battery_indicator_class = {
    .constructor_cb = lv_battery_indicator_constructor,
    .event_cb = lv_battery_indicator_event,
    .width_def = LV_SIZE_CONTENT,
    .height_def = LV_SIZE_CONTENT,
    .instance_size = sizeof(lv_battery_indicator_t),
    .base_class = &lv_obj_class,
    .name = "lv_battery_indicator",
    LV_PROPERTY_CLASS_FIELDS(battery_indicator, BATTERY_INDICATOR)
};

lv_obj_t* lv_battery_indicator_create(lv_obj_t* parent) {
    LV_LOG_INFO("begin");
    lv_obj_t* obj = lv_obj_class_create_obj(MY_CLASS, parent);
    lv_obj_class_init_obj(obj);
    lv_obj_set_layout(obj, LV_LAYOUT_FLEX);
    lv_obj_set_flex_flow(obj, LV_FLEX_FLOW_ROW);

    lv_battery_indicator_t* self = (lv_battery_indicator_t*)obj;

    LV_IMG_DECLARE(battery_icon);
    lv_obj_t* indicator_container = lv_obj_create(obj);

    lv_obj_set_style_bg_img_src(indicator_container, &battery_icon, 0);
    lv_obj_set_size(indicator_container, 26, 16);
    lv_obj_set_style_margin_right(indicator_container, 4, 0);

    lv_obj_set_style_pad_all(indicator_container, 2, 0);
    lv_obj_set_style_pad_left(indicator_container, 3, 0);
    lv_obj_set_style_pad_right(indicator_container, 6, 0);

    self->indicator = lv_obj_create(indicator_container);
    lv_obj_set_size(self->indicator, lv_pct(self->percentage), lv_pct(90));
    lv_obj_set_style_radius(self->indicator, 2, 0);
    lv_obj_set_align(self->indicator, LV_ALIGN_LEFT_MID);


    self->label = lv_label_create(obj);
    lv_obj_set_style_bg_color(self->label, lv_color_hex(0x040507), 0);
    lv_obj_set_size(self->label, 24, LV_SIZE_CONTENT);
    lv_obj_set_style_text_font(self->label, &lv_font_din_16, 0);
    lv_obj_set_style_text_color(self->label, lv_color_hex(0xffffff), 0);

    lv_battery_indicator_set_percentage(obj, lv_battery_indicator_get_percentage(obj));

    return obj;
}

void lv_battery_indicator_set_text_color_hex(lv_obj_t* obj, uint32_t c) {
    lv_battery_indicator_t* self = (lv_battery_indicator_t*)obj;
    lv_obj_set_style_text_color(self->label, lv_color_hex(c), 0);
}

void lv_battery_indicator_set_text_bg_color_hex(lv_obj_t* obj, uint32_t c) {
    lv_battery_indicator_t* self = (lv_battery_indicator_t*)obj;
    lv_obj_set_style_bg_color(self->label, lv_color_hex(c), 0);
}

void lv_battery_indicator_set_percentage(lv_obj_t* obj, uint8_t value) {
    lv_battery_indicator_t* self = (lv_battery_indicator_t*)obj;
    self->percentage = LV_CLAMP(0, value, 100);
    lv_label_set_text_fmt(self->label, "%d%%", self->percentage);
    lv_obj_set_width(self->indicator, lv_pct(LV_MAX(self->percentage, 10)));
    if (self->percentage >= 60) {
        lv_obj_set_style_bg_color(self->indicator, lv_color_hex(0x00ff00), 0);
    }
    else if (self->percentage >= 20) {
        lv_obj_set_style_bg_color(self->indicator, lv_color_hex(0xffff00), 0);
    }
    else {
        lv_obj_set_style_bg_color(self->indicator, lv_color_hex(0xff0000), 0);
    }
}

uint8_t lv_battery_indicator_get_percentage(lv_obj_t* obj) {
    lv_battery_indicator_t* self = (lv_battery_indicator_t*)obj;
    return self->percentage;
}

static void lv_battery_indicator_constructor(const lv_obj_class_t* class_p, lv_obj_t* obj) {
    LV_UNUSED(class_p);
    LV_TRACE_OBJ_CREATE("begin");

    lv_battery_indicator_t* indicator = (lv_battery_indicator_t*)obj;

    indicator->percentage = 0;

    lv_obj_remove_flag(obj, LV_OBJ_FLAG_CLICKABLE);

    LV_TRACE_OBJ_CREATE("finished");

}
static void lv_battery_indicator_event(const lv_obj_class_t* class_p, lv_event_t* e) {
    LV_UNUSED(class_p);

    lv_result_t res;

    res = lv_obj_event_base(MY_CLASS, e);
    if (res != LV_RESULT_OK) return;
}