#include "UI.h"
#include <raylib.h>

void UpdatePanel(Panel *panel) {
    if (panel == NULL) return;
    for (size_t i = 0; i < panel->elementsCount; ++i) {
        PanelElement *el =  &panel->elements[i];
        el->update(el->data);
    }
}

void DrawPanel(Panel *panel, Rectangle rec, PanelDirection direction) {
    if (panel == NULL) return;
    float acc_x;

    if (direction == RIGHT_TO_LEFT) 
        acc_x = rec.x + rec.width - PANEL_SPACING_PX;
    else 
        acc_x = rec.x + PANEL_SPACING_PX;

    for (size_t i = 0; i < panel->elementsCount; ++i) {
        PanelElement *el = &panel->elements[i];
        Rectangle targetRec = {
                .x = rec.x + acc_x,
                .y = rec.y,
                .height = rec.height,
                .width = rec.height * el->proportion,
                };
        if (direction == RIGHT_TO_LEFT) targetRec.x -= rec.height * el->proportion;
        Rectangle zeroRec = {
                .x = 0,
                .y = 0,
                .height = 0,
                .width = 0,
                };

        el->draw(el, zeroRec);
        if (direction == RIGHT_TO_LEFT) {
            acc_x -= (targetRec.width + PANEL_SPACING_PX);
            if (acc_x < rec.x) break;
        } else {
            acc_x += (targetRec.width + PANEL_SPACING_PX);
            if (acc_x > rec.x + rec.width) break;
        }
    }
}