import { AppKernel } from '@scripts/app/AppKernel';
import { UIViewID } from '@scripts/define/UIDefine';
import { UIView } from '@scripts/framework/ui/UIView';
import { addBtnClick } from '@scripts/utils/UIHelper';
import { _decorator, Component, instantiate, Node, Prefab, NodePool } from 'cc';
const { ccclass, property } = _decorator;
import { UIPopup } from '@scripts/framework/ui/UIPopup';
import { MailItem } from './MailItem';
import { UICloseReason } from '@scripts/framework/ui/UILayer';

@ccclass('Mail')
export class Mail extends UIPopup {
    readonly viewId: UIViewID = UIViewID.Mail;

    @property(Node)
    private btn_close: Node = null;
    @property(Node)
    private btn_deleteAll: Node = null;
    @property(Node)
    private btn_claimAll: Node = null;
    @property(Prefab)
    private mail_item: Prefab = null;
    @property(Node)
    private mail_content_layout: Node = null;

    private _mailList: any[] = [];
    private _mailItemPool: NodePool = new NodePool();
    private _usedItems: Node[] = [];

    protected async onBeforeOpen(_params: unknown): Promise<boolean> {
        const mailStore = AppKernel.stores.mailStore;
        const res = await mailStore.reqMailList();
        return res;
    }

    // protected onOpen(_params: unknown): void {
    //     this.updateMailItems();
    // }

    protected onCreate(): void | Promise<void> {
        AppKernel.events.on('mail:update', this.updateMailItems, this);
        addBtnClick(this.btn_close, this.onBtnCloseClick, this);
        addBtnClick(this.btn_deleteAll, this.onBtnDeleteAllClick, this);
        addBtnClick(this.btn_claimAll, this.onBtnClaimAllClick, this);
    }

    protected onDestroy(): void {
        AppKernel.events.off('mail:update', this.updateMailItems, this);
        this._mailItemPool.clear();
        
        super.onDestroy();
    }

    private updateMailItems() {
        console.log('updateMailItems');
        this._mailList = AppKernel.stores.mailStore.mailList;
        const newMailList = this._mailList ?? [];
        const layout = this.mail_content_layout;
        if (!layout) return;

        // 将当前正在使用的item全部回收进对象池
        for (const node of this._usedItems) {
            this._mailItemPool.put(node);
        }
        this._usedItems.length = 0;

        for (const mailData of newMailList) {
            let itemNode: Node;
            if (this._mailItemPool.size() > 0) {
                itemNode = this._mailItemPool.get();
            } else {
                itemNode = instantiate(this.mail_item);
            }
            itemNode.active = true;
            itemNode.parent = layout;

            const mailItemCmp = itemNode.getComponent(MailItem);
            if (mailItemCmp) {
                mailItemCmp.initItem(mailData);
            }
            this._usedItems.push(itemNode);
        }
    }

    // 弹窗关闭，回收节点
    protected async onAfterClose() {
        for (const node of this._usedItems) {
            this._mailItemPool.put(node);
        }
        this._usedItems.length = 0;
    }

    private onBtnCloseClick() {
        AppKernel.ui.close(UIViewID.Mail);
    }

    private async onBtnDeleteAllClick() {
        const { mailStore } = AppKernel.stores;

        AppKernel.ui.dialog({
            message: "Delete all selected mails? Cannot be undone.",
            callBack: async (res) => {
                if (res) {
                    await mailStore.reqMailDelete(0);
                    mailStore.reqMailList();
                    console.log("delete all", res);
                }
                return true;
            },
            showClose: true,
        })

    }

    private async onBtnClaimAllClick() {
        const { mailStore } = AppKernel.stores;


        AppKernel.ui.dialog({
            message: "Claim all mail rewards?",
            callBack: async (res) => {
                if (res) {
                    await mailStore.reqMailTake(0);
                    mailStore.reqMailList();
                    console.log("claim all", res);
                }
                return true;
            },
            showClose: true,
        })
    }



}