const LEFT_ENTRY_NAMES = [
    "shop",
    "sevenDayDoor",
    "yicon",
    "redeemBtn",
    "passBtn",
    "jungle",
    "xinshou",
];

const RIGHT_ENTRY_NAMES = [
    "rank",
    "gacha",
    "day",
    "posBtn",
    "topBtn",
    "hammer",
];

const FIRST_ENTRY_Y = -143.83;
const ENTRY_GAP_Y = 220;

/** 只排列主页两侧已显示的活动入口，不修改节点显隐、父节点或层级顺序。 */
export default class SevenDayHomeEntryLayout {
    constructor(private top: cc.Node) { }

    public refresh() {
        if (!this.top || !cc.isValid(this.top)) return;
        this.layoutColumn(LEFT_ENTRY_NAMES);
        this.layoutColumn(RIGHT_ENTRY_NAMES);
    }

    private layoutColumn(entryNames: string[]) {
        let visibleIndex = 0;
        entryNames.forEach((name: string) => {
            const entry = this.top.getChildByName(name);
            if (!entry || !entry.active) return;

            const targetY = FIRST_ENTRY_Y - ENTRY_GAP_Y * visibleIndex;
            if (Math.abs(entry.y - targetY) > 0.1) entry.y = targetY;
            visibleIndex++;
        });
    }
}