import PREFIX from '../prefix';
import {
    $el,
    bind,
    createElem,
    getBooleanTypeAttr,
    getNumTypeAttr,
    getStrTypeAttr,
    removeAttrs,
    setCss,
    setHtml
} from '../../dom-utils';
import { _newCreatePopper } from '../../mixins/tooltip';
import { CssTransition, clickOutside, _arrow, warn, _Popper } from '../../mixins';
import { type, validComps } from '../../utils';

interface PoptipAttrs {
    width: number;
    offset: number;
    title: string;
    okText: string;
    content: string;
    trigger: string;
    padding: string;
    placement: string;
    cancelText: string;
    isDisabled: boolean;
    isWordWrap: boolean;
    isConfirm: boolean;
}

interface PoptipEvents {
    onShow?: () => void; // 提示框显示时触发
    onHide?: () => void; // 提示框消失时触发
    onOk?: () => void; // 点击确定的回调
    onCancel?: () => void; // 点击取消的回调
}

interface Config {
    config(
        el: string
    ): {
        title: string | number; // 显示的标题
        content: string | number; // 显示的正文内容，只在非 confirm 模式下有效
        events: (options: PoptipEvents) => void;
    };
}

const DEFAULTDELAY = 100;
let SHOWTIMER: any, EVENTTIMER: any;

class Poptip implements Config {
    readonly VERSION: string;
    private COMPONENTS: NodeListOf<Element>;
    private children: NodeListOf<HTMLElement>;

    constructor() {
        this.VERSION = 'v1.0';
        this.COMPONENTS = $el('r-poptip', { all: true });
        this._create(this.COMPONENTS);
        this.children = $el(`.${PREFIX.poptip}-popper`, { all: true });

        clickOutside(this.children, 'poptipShow', 'zoom-big-fast-leave');

        _arrow.scrollUpdate();
    }

    public config(
        el: string
    ): {
        title: string | number;
        content: string | number;
        events: ({ onShow, onHide, onOk, onCancel }: PoptipEvents) => void;
    } {
        const target = $el(el);

        validComps(target, 'poptip');

        const { attrs } = Poptip.prototype;

        const PoptipRef = target.querySelector(`.${PREFIX.poptip}-rel`);
        const PoptipPopper = target.querySelector(`.${PREFIX.poptip}-popper`);
        const PoptipContent = target.querySelector(`.${PREFIX.poptip}-body-content-inner`);

        let PoptipTitle: any;
        let OkBtn: any;
        let CancelBtn: any;

        // 判断要设置的提示框标题是否是确认对话框的标题
        // 判断是否要获取确认对话框的确定和取消按钮
        if (attrs(target).isConfirm) {
            PoptipTitle = target.querySelector(`.${PREFIX.poptip}-body-message`);
            OkBtn = target.querySelector(`.${PREFIX.button}-primary.${PREFIX.button}-sm`);
            CancelBtn = target.querySelector(`.${PREFIX.button}-text.${PREFIX.button}-sm`);
        } else {
            PoptipTitle = target.querySelector(`.${PREFIX.poptip}-title-inner`);
        }

        return {
            get title() {
                return setHtml(PoptipTitle);
            },
            set title(newVal) {
                if (type.isStr(newVal) || type.isNum(newVal)) setHtml(PoptipTitle, newVal);
            },
            get content() {
                return setHtml(PoptipContent);
            },
            set content(newVal) {
                if (type.isStr(newVal) || type.isNum(newVal)) setHtml(PoptipContent, newVal);
            },
            events({ onShow, onHide, onOk, onCancel }) {
                const triggerMode = attrs(target).trigger;

                const showEv = () => {
                    if (PoptipPopper.dataset.poptipShow === 'true') onShow && type.isFn(onShow);
                };
                const hideEv = () => {
                    if (PoptipPopper.dataset.poptipShow === 'false') onHide && type.isFn(onHide);
                };
                const clickEv = () => {
                    showEv();
                    hideEv();
                };

                if (triggerMode === 'click') {
                    bind(PoptipRef, 'click', clickEv);
                } else if (triggerMode === 'focus') {
                    bind(target, 'mousedown', showEv);
                    bind(target, 'mouseup', hideEv);
                } else if (triggerMode === 'hover') {
                    _Popper.handleHoverShowAndHideEvents({
                        reference: target,
                        popper: PoptipPopper,
                        datasetVal: 'poptipStatus',
                        showCb: onShow,
                        hideCb: onHide,
                        delay: DEFAULTDELAY,
                        timer: EVENTTIMER
                    });
                }

                // 确认对话框的确定和取消按钮都要触发提示框隐藏
                if (OkBtn) {
                    bind(OkBtn, 'click', () => {
                        hideEv();
                        onOk && type.isFn(onOk);
                    });
                }
                if (CancelBtn) {
                    bind(OkBtn, 'click', () => {
                        hideEv();
                        onCancel && type.isFn(onCancel);
                    });
                }
            }
        };
    }

    private _create(COMPONENTS: NodeListOf<Element>): void {
        COMPONENTS.forEach((node, i) => {
            this._createPoptipNodes(node, i);
            removeAttrs(node, [
                'width',
                'title',
                'content',
                'ok-text',
                'padding',
                'disabled',
                'placement',
                'word-wrap',
                'cancel-text'
            ]);
        });
    }

    private _createPoptipNodes(node: Element, i: number): void {
        const attrs = this.attrs(node);

        if (attrs.isConfirm) node.className = `${PREFIX.poptip}-confirm`;

        const uid = `poptip${i}`;

        const referenceElem = node.firstElementChild!;
        const PoptipRel = createElem('div');

        PoptipRel.className = `${PREFIX.poptip}-rel`;
        PoptipRel.appendChild(referenceElem);

        const whatModel = attrs.isConfirm ? this._confirmTpl(attrs) : this._normalTpl(attrs);

        const template = `
            <div class="${PREFIX.poptip}-popper" x-placement=${attrs.placement} data-poptip-uid=${uid}>
                <div class="${PREFIX.poptip}-content">
                    <div class="${PREFIX.poptip}-arrow" data-popper-arrow></div>
                    <div class="${PREFIX.poptip}-inner">${whatModel}</div>
                </div>
            </div>
        `;

        setHtml(node, template);

        this._setWidth(attrs, uid);

        const Popper = $el(`[data-poptip-uid=${uid}]`)!;

        Popper?.before(PoptipRel);

        // 初始化 display
        setCss(Popper, 'display', 'none');

        if (!attrs.isDisabled) {
            // @ts-ignore
            this._triggerDisplay(attrs.trigger, node, PoptipRel, Popper, attrs);
        }
    }

    private _normalTpl(attrs: PoptipAttrs): string {
        const setPadding = attrs.padding ? `padding:${attrs.padding}` : '';

        const isShowTitle =
            !attrs.isWordWrap && attrs.title
                ? `<div class="${PREFIX.poptip}-title" style="${setPadding}">
                      <div class="${PREFIX.poptip}-title-inner">${attrs.title}</div>
                   </div>`
                : '';

        const template = `
            ${isShowTitle}
            <div class="${PREFIX.poptip}-body" style="${setPadding}">
                <div class="${PREFIX.poptip}-body-content">
                <div class="${PREFIX.poptip}-body-content-inner">${attrs.content}</div>
                </div>
            </div>
            `;

        return template;
    }

    private _confirmTpl(attrs: PoptipAttrs): string {
        const template = `
          <div class="${PREFIX.poptip}-body">
              <i class="${PREFIX.icon} ${PREFIX.icon}-ios-help-circle"></i>
              <div class="${PREFIX.poptip}-body-message">${attrs.title}</div>
          </div>
          <div class="${PREFIX.poptip}-footer">
              <button class="${PREFIX.button} ${PREFIX.button}-text ${PREFIX.button}-sm">${attrs.cancelText}</button>
              <button class="${PREFIX.button} ${PREFIX.button}-primary ${PREFIX.button}-sm">${attrs.okText}</button>
          </div>
      `;

        return template;
    }

    private _setWidth(attrs: PoptipAttrs, uid: string): void {
        const popper = document.querySelector(`[data-poptip-uid=${uid}]`);
        if (attrs.width) {
            setCss(popper, 'width', `${attrs.width}px`);
        }

        if (attrs.isWordWrap) {
            const popperContent = popper?.querySelector(`.${PREFIX.poptip}-body-content`);
            popperContent?.classList.add(`${PREFIX.poptip}-body-content-word-wrap`);
        }
    }

    private _triggerDisplay(
        trigger: string,
        parent: HTMLElement,
        referenceChild: HTMLElement,
        popper: Element | any,
        poptipAttrs: PoptipAttrs
    ): void {
        if (trigger !== 'click' && trigger !== 'hover' && trigger !== 'focus') {
            warn(`The Poptip attribute trigger got an invalid trigger mode --> '${trigger}'`);
            return;
        }

        const { _initPoptip } = this;

        const common = {
            rmCls: true,
            enterCls: 'zoom-big-fast-enter',
            leaveCls: 'zoom-big-fast-leave',
            timeout: 200
        };

        // 通过设置 popper.dataset.poptipShow 来判断是否隐藏或显示
        const show = () => {
            popper.dataset.poptipShow = 'true';
            CssTransition(popper, {
                inOrOut: 'in',
                ...common
            });
            _initPoptip(parent, popper, poptipAttrs);
        };
        const hide = () => {
            popper.dataset.poptipShow = 'false';
            CssTransition(popper, {
                inOrOut: 'out',
                ...common
            });
        };

        const judgmentIsVisible = () => (popper.dataset.poptipShow === 'true' ? hide() : show());

        if (trigger === 'click' || trigger === 'focus') {
            _initPoptip(parent, popper, poptipAttrs);
            _arrow.toggleUpdate(popper, trigger, parent);
        }
        if (trigger === 'click') {
            bind(referenceChild, 'click', judgmentIsVisible);
        } else if (trigger === 'focus' && !poptipAttrs.isConfirm) {
            bind(referenceChild, 'mousedown', judgmentIsVisible);
            bind(referenceChild, 'mouseup', hide);
        } else if (trigger === 'hover' && !poptipAttrs.isConfirm) {
            bind(parent, 'mouseenter', () => {
                SHOWTIMER = setTimeout(() => {
                    show();
                }, DEFAULTDELAY);
            });
            bind(parent, 'mouseleave', () => {
                clearTimeout(SHOWTIMER);
                hide();
            });

            _arrow.toggleUpdate(popper, 'hover', parent, DEFAULTDELAY);
        }

        // 确认对话框的确定和取消按钮触发隐藏
        if (poptipAttrs.isConfirm) {
            const confirmOkBtn = popper.querySelector(
                `.${PREFIX.button}-primary.${PREFIX.button}-sm`
            );
            const confirmCancelBtn = popper.querySelector(
                `.${PREFIX.button}-text.${PREFIX.button}-sm`
            );
            confirmOkBtn.addEventListener('click', judgmentIsVisible);
            confirmCancelBtn.addEventListener('click', judgmentIsVisible);
        }
    }

    private _initPoptip(reference: Element, popper: Element | any, poptipAttrs: PoptipAttrs): any {
        const NCP = _newCreatePopper(reference, popper, poptipAttrs.placement, poptipAttrs.offset);
        return NCP;
    }

    private attrs(node: Element): PoptipAttrs {
        return {
            // number type
            width: getNumTypeAttr(node, 'width', 0),
            offset: getNumTypeAttr(node, 'offset', 0),
            // string type
            title: getStrTypeAttr(node, 'title', ''),
            okText: getStrTypeAttr(node, 'ok-text', '确定'),
            content: getStrTypeAttr(node, 'content', ''),
            trigger: getStrTypeAttr(node, 'trigger', 'click'),
            padding: getStrTypeAttr(node, 'padding', ''),
            placement: getStrTypeAttr(node, 'placement', 'top'),
            cancelText: getStrTypeAttr(node, 'cancel-text', '取消'),
            // boolean type
            isConfirm: getBooleanTypeAttr(node, 'confirm'),
            isDisabled: getBooleanTypeAttr(node, 'disabled'),
            isWordWrap: getBooleanTypeAttr(node, 'word-wrap')
        };
    }
}

export default Poptip;