import { _decorator, Component, Node, Label, Sprite, Button } from 'cc';
import EventBus, { GameEvents } from '../Core/EventBus';
import { JsonConfigLoader } from '../Core/JsonConfigLoader';
import { BundleLoader } from '../Core/BundleLoader';

const { ccclass, property } = _decorator;

@ccclass('GainUI')
export class GainUI extends Component {
    @property(Node) panel: Node = null;               // 弹窗根节点
    @property(Label) titleLabel: Label = null;        // 标题，如“新武器”
    @property(Sprite) iconSprite: Sprite = null;      // 武器图标
    @property(Label) nameLabel: Label = null;         // 武器名称
    @property(Button) confirmBtn: Button = null;      // 确认按钮

    private weaponsConfig: any = null;
    private bundleLoader: BundleLoader = null;

    // 等待展示的武器名称队列（来自 UpgradeController 派发的 NEW_WEAPONS_UNLOCKED）
    private pendingWeapons: string[] = [];
    // 是否已经完成奖励动画（由 MoneyAni 派发 REWARD_ANIMATION_COMPLETED）
    private rewardAnimationCompleted = false;
    // 当前是否正在显示弹窗
    private showing = false;

    async onLoad() {
        this.bundleLoader = BundleLoader.getInstance();
        // 默认隐藏弹窗
        if (this.panel) this.panel.active = false;
        console.log('[GainUI] 已隐藏弹窗（默认状态）');
        // 绑定事件
        EventBus.getInstance().on(GameEvents.NEW_WEAPONS_UNLOCKED, this.onNewWeaponsUnlocked, this);
        EventBus.getInstance().on(GameEvents.REWARD_ANIMATION_COMPLETED, this.onRewardAnimationCompleted, this);

        // 绑定确认按钮
        this.confirmBtn?.node.on(Button.EventType.CLICK, this.onConfirm, this);
    }

    async start() {
        // 预加载武器配置，便于查找图标与名称
        try {
            this.weaponsConfig = await JsonConfigLoader.getInstance().loadConfig('weapons');
        } catch (err) {
            console.warn('[GainUI] 加载武器配置失败:', err);
        }
    }

    onDestroy() {
        EventBus.getInstance().off(GameEvents.NEW_WEAPONS_UNLOCKED, this.onNewWeaponsUnlocked, this);
        EventBus.getInstance().off(GameEvents.REWARD_ANIMATION_COMPLETED, this.onRewardAnimationCompleted, this);
        this.confirmBtn?.node.off(Button.EventType.CLICK, this.onConfirm, this);
    }

    // 处理新武器解锁事件
    private onNewWeaponsUnlocked = (weaponNames: string[]) => {
        if (!weaponNames || weaponNames.length === 0) return;
        this.pendingWeapons.push(...weaponNames);
        this.tryShowPopup();
    }

    // 处理奖励动画完成事件
    private onRewardAnimationCompleted = () => {
        this.rewardAnimationCompleted = true;
        this.tryShowPopup();
    }

    // 在满足条件时显示弹窗：需要奖励动画已完成且队列非空
    private async tryShowPopup() {
        if (this.showing) return;
        if (!this.rewardAnimationCompleted) return;
        if (this.pendingWeapons.length === 0) return;

        const nextName = this.pendingWeapons.shift();
        await this.renderWeapon(nextName);
        // 激活并确保置顶显示，避免被MainUI/TopBar覆盖
        if (this.panel) {
            this.panel.active = true;
            const parent = this.panel.parent;
            if (parent) {
                this.panel.setSiblingIndex(parent.children.length - 1);
            }
        }
        this.showing = true;
    }

    // 确认按钮逻辑：继续展示队列中的下一个或关闭弹窗
    private async onConfirm() {
        if (this.pendingWeapons.length > 0) {
            const nextName = this.pendingWeapons.shift();
            await this.renderWeapon(nextName);
        } else {
            if (this.panel) this.panel.active = false;
            this.showing = false;
        }
    }

    // 根据武器名称渲染弹窗内容（标题、图标、名称）
    private async renderWeapon(weaponName: string) {
        if (this.titleLabel) this.titleLabel.string = '新武器';
        if (this.nameLabel) this.nameLabel.string = weaponName || '';

        // 查找武器配置，加载图标
        const config = this.findWeaponConfigByName(weaponName);
        if (config && config.visualConfig && config.visualConfig.weaponSprites) {
            let spritePath: string;
            const sprites = config.visualConfig.weaponSprites;
            if (typeof sprites === 'string') {
                spritePath = sprites;
            } else {
                spritePath = sprites['I'] || sprites['H-I'] || sprites['L'] || sprites['S'] || sprites['D-T'];
            }
            if (spritePath && this.iconSprite) {
                await this.loadWeaponSprite(this.iconSprite, spritePath);
            }
        }
    }

    private findWeaponConfigByName(name: string) {
        if (!this.weaponsConfig || !this.weaponsConfig.weapons) return null;
        return this.weaponsConfig.weapons.find((w: any) => w.name === name);
    }

    private async loadWeaponSprite(sprite: Sprite, spritePath: string) {
        const bundlePath = spritePath.replace(/^images\//, '');
        try {
            const spriteFrame = await this.bundleLoader.loadSpriteFrame(bundlePath + '/spriteFrame');
            if (spriteFrame && sprite && sprite.isValid) {
                sprite.spriteFrame = spriteFrame;
            }
        } catch (err) {
            console.warn(`[GainUI] 加载武器图标失败: ${spritePath}`, err);
        }
    }
}