import {
    APP_MAIL_CHECK,
    APP_MAIL_DELETE,
    APP_MAIL_LIST,
    APP_MAIL_READ,
    APP_MAIL_TAKE,
    success,
} from '../../api';
import { Http } from '../../request';
import { IMailActionData, IMailCheckData, IMailItem, IMailPageData } from './data';

class MailStore {
    private _pageData: IMailPageData = null;
    private _newMailCount = 0;
    private _mailList: IMailItem[] = [];
    private _readMailID = 0;

    public get pageData() { return this._pageData; }

    public get newMailCount() { return this._newMailCount; }

    public get mailList() { return this._mailList; }

    public get readMailID() { return this._readMailID; }

    getMail(mailID: number) {
        return this._mailList.find(item => Number(item.MailID) === Number(mailID)) || null;
    }

    selectMail(mailID: number) {
        this._readMailID = mailID;
    }

    async reqMailList() {
        const res = await Http.call<IMailPageData>(APP_MAIL_LIST);
        if (success(res) && res.data) {
            this._pageData = res.data;
            this._mailList = Array.isArray(res.data.data) ? res.data.data : [];
            return true;
        }
        return false;
    }

    async reqMailCheck() {
        const res = await Http.call<IMailCheckData>(APP_MAIL_CHECK);
        if (success(res) && res.data) {
            const count = Number(res.data.new || 0);
            this._newMailCount = Number.isFinite(count) ? Math.max(0, count) : 0;
            return true;
        }
        return false;
    }

    async reqMailRead(mailID: number) {
        const res = await Http.call<IMailActionData>(APP_MAIL_READ, { MailID: mailID });
        if (success(res)) {
            const responseMailID = Number(res.data?.MailID ?? mailID);
            const item = this.getMail(responseMailID);
            if (item && Number(item.MailStatus) < 2) {
                item.MailStatus = '2';
                this._newMailCount = Math.max(0, this._newMailCount - 1);
            }

            return true;
        }
        return false;
    }

    async reqMailDelete(mailID: number) {
        const res = await Http.call(APP_MAIL_DELETE, { MailID: mailID });
        if (success(res)) {
            if (mailID === 0) {
                this._mailList = [];
            } else {
                this._mailList = this._mailList.filter(item => Number(item.MailID) !== Number(mailID));
            }
            if (this._readMailID === mailID) this._readMailID = 0;
            return true;
        }
        return false;
    }

    async reqMailTake(mailID: number) {
        const res = await Http.call<IMailActionData>(APP_MAIL_TAKE, { MailID: mailID });
        if (success(res)) {
            const responseMailID = Number(res.data?.MailID ?? mailID);
            const item = this.getMail(responseMailID);
            if (item) item.MailStatus = '3';
            return true;
        }
        return false;
    }

    clear() {
        this._pageData = null;
        this._newMailCount = 0;
        this._mailList = [];
        this._readMailID = 0;
    }
}

export const mailStore = new MailStore();