import { Node, UITransform, Vec3, v3 } from 'cc';
import { GBundle, GPath } from 'db://assets/script/game/ConfigRes';
import { RedDotComp, RedDotID } from './RedDotComp';

const DEFAULT_POS = v3(32, 32, 0);

/** 在按钮/格子上挂红点：主按钮走 RedDotComp，格子走局部显隐 */
export class RedDotView {
    static bind(btn: Node | null | undefined, id: RedDotID): void {
        if (!btn?.isValid || id === RedDotID.无) return;
        const dot = this._ensureDot(btn, DEFAULT_POS);
        if (!dot) return;
        dot.active = true;
        let comp = dot.getComponent(RedDotComp);
        if (!comp) comp = dot.addComponent(RedDotComp);
        comp.id = id;
        comp.checkRedDotShow();
    }

    static setLocal(parent: Node | null | undefined, show: boolean, pos?: Vec3): void {
        if (!parent?.isValid) return;
        if (!show) {
            const exist = parent.getChildByName('dot');
            if (exist?.isValid) exist.active = false;
            return;
        }
        const dot = this._ensureDot(parent, pos ?? DEFAULT_POS);
        if (!dot) return;
        dot.active = true;
        const icon = dot.getChildByName('icon');
        if (icon?.isValid) icon.active = true;
        dot.setSiblingIndex(parent.children.length - 1);
    }

    private static _ensureDot(parent: Node, pos: Vec3): Node | null {
        let dot = parent.getChildByName('dot');
        if (dot?.isValid) return dot;
        const n = gg.res.getNode(GPath.Prefab, 'dot', GBundle.Comm);
        if (!n?.isValid) return null;
        n.name = 'dot';
        n.parent = parent;
        n.setPosition(pos.x, pos.y, pos.z);
        if (!n.getComponent(UITransform)) n.addComponent(UITransform);
        return n;
    }
}