import { _decorator, Component, EventTouch, Label, Node, Sprite, Vec2 } from 'cc';
import { SpriteLoad } from 'db://assets/mx/components/SpriteLoad';
import { GBundle, UIID } from '../game/ConfigRes';
const { ccclass } = _decorator;

const LOG = '[GemGrid]';
/** 超过此位移视为拖拽，不弹信息 */
const TAP_THRESHOLD = 18;

/**
 * 宝石格子：仓库 / 获得弹窗共用。
 * bg=宝石框大{quality}；icon=Weapon.icon；lbNum=数量。
 * 轻点打开 PopGemInfo（拖拽不触发）。
 */
@ccclass('GemGrid')
export class GemGrid extends Component {

    /** 是否响应轻点打开信息 */
    canClick = true;
    /** 品质框 */
    bg: Node = null!;
    /** 宝石图标 */
    icon: Node = null!;
    /** 数量 */
    lbNum: Label = null!;
    /** 当前宝石配表 */
    data: ITableWeapon | null = null;

    private _pressing = false;
    private _pressStart = new Vec2();

    protected onLoad(): void {
        this._bindNodes();
    }

    protected onEnable(): void {
        this.node.on(Node.EventType.TOUCH_START, this._onTouchStart, this);
        this.node.on(Node.EventType.TOUCH_END, this._onTouchEnd, this);
        this.node.on(Node.EventType.TOUCH_CANCEL, this._onTouchCancel, this);
    }

    protected onDisable(): void {
        this.node.off(Node.EventType.TOUCH_START, this._onTouchStart, this);
        this.node.off(Node.EventType.TOUCH_END, this._onTouchEnd, this);
        this.node.off(Node.EventType.TOUCH_CANCEL, this._onTouchCancel, this);
        this._pressing = false;
    }

    /**
     * 打开宝石信息弹窗。
     * @param gemId Weapon.id
     */
    static openInfo(gemId: number): void {
        const id = Math.floor(Number(gemId) || 0);
        if (id <= 0) return;
        void gg.ui.openPanel(UIID.PopGemInfo, { data: id });
    }

    /**
     * 绑定展示数据。
     * @param data Weapon 行；null 表示空
     * @param count 数量；传负数隐藏数量文案
     */
    setData(data: ITableWeapon | null, count = 0): void {
        this._bindNodes();
        this.data = data;
        const quality = data ? Math.floor(Number(data.quality) || 0) : 0;
        if (!data) {
            this._setSprite(this.bg, '', false);
            this._setSprite(this.icon, '', true);
            if (this.icon?.isValid) this.icon.active = false;
        } else {
            if (quality < 1 || quality > 5) console.warn(LOG, '品质无对应宝石框大', data.id, quality);
            this._setSprite(this.bg, `weapon/宝石框大${quality}`, false);
            const iconName = String(data.icon || '').trim();
            if (!iconName) console.warn(LOG, 'icon 缺失', data.id);
            this._setSprite(this.icon, iconName ? `weapon/${iconName}` : '', true);
            if (this.icon?.isValid) this.icon.active = !!iconName;
        }
        if (this.lbNum?.isValid) {
            const showNum = count >= 0;
            this.lbNum.node.active = showNum;
            if (showNum) this.lbNum.string = `${Math.max(0, count | 0)}`;
        }
    }

    /** 按下 */
    private _onTouchStart(e: EventTouch): void {
        this._pressing = true;
        this._pressStart.set(e.getUILocation());
    }

    /** 抬起：位移未超阈值则打开信息 */
    private _onTouchEnd(e: EventTouch): void {
        if (!this._pressing) return;
        this._pressing = false;
        if (!this.canClick || !this.data) return;
        const loc = e.getUILocation();
        const dx = loc.x - this._pressStart.x;
        const dy = loc.y - this._pressStart.y;
        if (dx * dx + dy * dy >= TAP_THRESHOLD * TAP_THRESHOLD) return;
        GemGrid.openInfo(Number(this.data.id) || 0);
    }

    /** 取消按下 */
    private _onTouchCancel(): void {
        this._pressing = false;
    }

    /** 绑定子节点 */
    private _bindNodes(): void {
        if (!this.bg?.isValid) this.bg = this.node.getChildByName('bg')!;
        if (!this.icon?.isValid) this.icon = this.node.getChildByName('icon')!;
        if (!this.lbNum?.isValid) {
            const n = this.node.getChildByName('lbNum');
            this.lbNum = n?.getComponent(Label) ?? null!;
        }
        if (!this.bg) console.warn(LOG, 'bg 节点缺失', this.node?.name);
    }

    /**
     * icons/weapon 下图。
     * @param nativeSize true=按贴图原始尺寸（不拉伸）；false=铺满节点 UITransform
     */
    private _setSprite(node: Node | null, path: string, nativeSize: boolean): void {
        if (!node?.isValid) return;
        if (!path) {
            node.active = false;
            node.getComponent(SpriteLoad)?.clear();
            const sp = node.getComponent(Sprite);
            if (sp) sp.spriteFrame = null;
            return;
        }
        node.active = true;
        if (!node.getComponent(Sprite)) node.addComponent(Sprite);
        const sp = node.getComponent(Sprite)!;
        sp.type = Sprite.Type.SIMPLE;
        // icon 用 TRIMMED 跟贴图尺寸，避免 CUSTOM 拉伸变形
        sp.sizeMode = nativeSize ? Sprite.SizeMode.TRIMMED : Sprite.SizeMode.CUSTOM;
        node.getOrAddComponent(SpriteLoad).setSprite(path, GBundle.Items, () => {
            if (!node.isValid || !sp.isValid) return;
            sp.sizeMode = nativeSize ? Sprite.SizeMode.TRIMMED : Sprite.SizeMode.CUSTOM;
        });
    }
}