import React = require('react');
import { FontAwesomeIcon } from '@fortawesome/react-fontawesome';
import { Tooltip } from '@material-ui/core';
import { action, computed, IReactionDisposer, observable, ObservableMap, reaction } from 'mobx';
import { observer } from 'mobx-react';
import { ColorState } from 'react-color';
import { Doc, Opt } from '../../../fields/Doc';
import { returnFalse, setupMoveUpEvents, unimplementedFunction, Utils } from '../../../Utils';
import { SelectionManager } from '../../util/SelectionManager';
import { AntimodeMenu, AntimodeMenuProps } from '../AntimodeMenu';
import { LinkPopup } from '../linking/LinkPopup';
import { ButtonDropdown } from '../nodes/formattedText/RichTextMenu';
import './AnchorMenu.scss';

@observer
export class AnchorMenu extends AntimodeMenu<AntimodeMenuProps> {
    static Instance: AnchorMenu;

    private _disposer: IReactionDisposer | undefined;
    private _commentCont = React.createRef<HTMLButtonElement>();
    private _palette = [
        'rgba(208, 2, 27, 0.8)',
        'rgba(238, 0, 0, 0.8)',
        'rgba(245, 166, 35, 0.8)',
        'rgba(248, 231, 28, 0.8)',
        'rgba(245, 230, 95, 0.616)',
        'rgba(139, 87, 42, 0.8)',
        'rgba(126, 211, 33, 0.8)',
        'rgba(65, 117, 5, 0.8)',
        'rgba(144, 19, 254, 0.8)',
        'rgba(238, 169, 184, 0.8)',
        'rgba(224, 187, 228, 0.8)',
        'rgba(225, 223, 211, 0.8)',
        'rgba(255, 255, 255, 0.8)',
        'rgba(155, 155, 155, 0.8)',
        'rgba(0, 0, 0, 0.8)',
    ];

    @observable private _keyValue: string = '';
    @observable private _valueValue: string = '';
    @observable private _added: boolean = false;
    @observable private highlightColor: string = 'rgba(245, 230, 95, 0.616)';
    @observable private _showLinkPopup: boolean = false;

    @observable public Highlighting: boolean = false;
    @observable public Status: 'marquee' | 'annotation' | '' = '';

    public onMakeAnchor: () => Opt<Doc> = () => undefined; // Method to get anchor from text search

    public OnCrop: (e: PointerEvent) => void = unimplementedFunction;
    public OnClick: (e: PointerEvent) => void = unimplementedFunction;
    public StartDrag: (e: PointerEvent, ele: HTMLElement) => void = unimplementedFunction;
    public StartCropDrag: (e: PointerEvent, ele: HTMLElement) => void = unimplementedFunction;
    public Highlight: (color: string, isPushpin: boolean) => Opt<Doc> = (color: string, isPushpin: boolean) => undefined;
    public GetAnchor: (savedAnnotations?: ObservableMap<number, HTMLDivElement[]>) => Opt<Doc> = () => undefined;
    public Delete: () => void = unimplementedFunction;
    public AddTag: (key: string, value: string) => boolean = returnFalse;
    public PinToPres: () => void = unimplementedFunction;
    public MakePushpin: () => void = unimplementedFunction;
    public IsPushpin: () => boolean = returnFalse;
    public get Active() {
        return this._left > 0;
    }

    constructor(props: Readonly<{}>) {
        super(props);

        AnchorMenu.Instance = this;
        AnchorMenu.Instance._canFade = false;
    }

    componentDidMount() {
        this._disposer = reaction(
            () => SelectionManager.Views(),
            selected => {
                this._showLinkPopup = false;
                AnchorMenu.Instance.fadeOut(true);
            }
        );
    }

    pointerDown = (e: React.PointerEvent) => {
        setupMoveUpEvents(
            this,
            e,
            (e: PointerEvent) => {
                this.StartDrag(e, this._commentCont.current!);
                return true;
            },
            returnFalse,
            e => this.OnClick?.(e)
        );
    };

    cropDown = (e: React.PointerEvent) => {
        setupMoveUpEvents(
            this,
            e,
            (e: PointerEvent) => {
                this.StartCropDrag(e, this._commentCont.current!);
                return true;
            },
            returnFalse,
            e => this.OnCrop?.(e)
        );
    };

    @action
    highlightClicked = (e: React.MouseEvent) => {
        if (!this.Highlight(this.highlightColor, false) && this.Pinned) {
            this.Highlighting = !this.Highlighting;
        }
        AnchorMenu.Instance.fadeOut(true);
    };

    @action
    toggleLinkPopup = (e: React.MouseEvent) => {
        //ignore the potential null type error because this method cannot be called unless the user selects text and clicks the link button
        //change popup visibility field to visible
        this._showLinkPopup = !this._showLinkPopup;
    };

    @computed get highlighter() {
        const button = (
            <button className="antimodeMenu-button anchor-color-preview-button" title="" key="highlighter-button" onClick={this.highlightClicked}>
                <div className="anchor-color-preview">
                    <FontAwesomeIcon icon="highlighter" size="lg" style={{ transition: 'transform 0.1s', transform: this.Highlighting ? '' : 'rotate(-45deg)' }} />
                    <div className="color-preview" style={{ backgroundColor: this.highlightColor }}></div>
                </div>
            </button>
        );

        const dropdownContent = (
            <div className="dropdown">
                <p>Change highlighter color:</p>
                <div className="color-wrapper">
                    {this._palette.map(color => {
                        if (color) {
                            return this.highlightColor === color ? (
                                <button className="color-button active" key={`active ${color}`} style={{ backgroundColor: color }} onPointerDown={e => this.changeHighlightColor(color, e)}></button>
                            ) : (
                                <button className="color-button" key={`inactive ${color}`} style={{ backgroundColor: color }} onPointerDown={e => this.changeHighlightColor(color, e)}></button>
                            );
                        }
                    })}
                </div>
            </div>
        );
        return (
            <Tooltip key="highlighter" title={<div className="dash-tooltip">{'Click to Highlight'}</div>}>
                <div className="anchorMenu-highlighter">
                    <ButtonDropdown key={'highlighter'} button={button} dropdownContent={dropdownContent} pdf={true} />
                </div>
            </Tooltip>
        );
    }

    @action changeHighlightColor = (color: string, e: React.PointerEvent) => {
        const col: ColorState = {
            hex: color,
            hsl: { a: 0, h: 0, s: 0, l: 0, source: '' },
            hsv: { a: 0, h: 0, s: 0, v: 0, source: '' },
            rgb: { a: 0, r: 0, b: 0, g: 0, source: '' },
            oldHue: 0,
            source: '',
        };
        e.preventDefault();
        e.stopPropagation();
        this.highlightColor = Utils.colorString(col);
    };

    @action keyChanged = (e: React.ChangeEvent<HTMLInputElement>) => {
        this._keyValue = e.currentTarget.value;
    };
    @action valueChanged = (e: React.ChangeEvent<HTMLInputElement>) => {
        this._valueValue = e.currentTarget.value;
    };
    @action addTag = (e: React.PointerEvent) => {
        if (this._keyValue.length > 0 && this._valueValue.length > 0) {
            this._added = this.AddTag(this._keyValue, this._valueValue);
            setTimeout(
                action(() => (this._added = false)),
                1000
            );
        }
    };

    render() {
        const buttons =
            this.Status === 'marquee'
                ? [
                      this.highlighter,

                      <Tooltip key="annotate" title={<div className="dash-tooltip">{'Drag to Place Annotation'}</div>}>
                          <button className="antimodeMenu-button annotate" ref={this._commentCont} onPointerDown={this.pointerDown} style={{ cursor: 'grab' }}>
                              <FontAwesomeIcon icon="comment-alt" size="lg" />
                          </button>
                      </Tooltip>,
                      //NOTE: link popup is currently in progress
                      <Tooltip key="link" title={<div className="dash-tooltip">{'Find document to link to selected text'}</div>}>
                          <button className="antimodeMenu-button link" onPointerDown={this.toggleLinkPopup} style={{}}>
                              <FontAwesomeIcon style={{ position: 'absolute', transform: 'scale(1.5)' }} icon={'search'} size="lg" />
                              <FontAwesomeIcon style={{ position: 'absolute', transform: 'scale(0.5)', transformOrigin: 'top left', top: 12, left: 12 }} icon={'link'} size="lg" />
                          </button>
                      </Tooltip>,
                      <LinkPopup key="popup" showPopup={this._showLinkPopup} linkFrom={this.onMakeAnchor} />,
                      AnchorMenu.Instance.StartCropDrag === unimplementedFunction ? (
                          <></>
                      ) : (
                          <Tooltip key="crop" title={<div className="dash-tooltip">{'Click/Drag to create cropped image'}</div>}>
                              <button className="antimodeMenu-button annotate" onPointerDown={this.cropDown} style={{ cursor: 'grab' }}>
                                  <FontAwesomeIcon icon="image" size="lg" />
                              </button>
                          </Tooltip>
                      ),
                  ]
                : [
                      <Tooltip key="trash" title={<div className="dash-tooltip">{'Remove Link Anchor'}</div>}>
                          <button className="antimodeMenu-button" onPointerDown={this.Delete}>
                              <FontAwesomeIcon icon="trash-alt" size="lg" />
                          </button>
                      </Tooltip>,
                      <Tooltip key="Pin" title={<div className="dash-tooltip">{'Pin to Presentation'}</div>}>
                          <button className="antimodeMenu-button" onPointerDown={this.PinToPres}>
                              <FontAwesomeIcon icon="map-pin" size="lg" />
                          </button>
                      </Tooltip>,
                      <Tooltip key="pushpin" title={<div className="dash-tooltip">{'toggle pushpin behavior'}</div>}>
                          <button className="antimodeMenu-button" style={{ color: this.IsPushpin() ? 'black' : 'white', backgroundColor: this.IsPushpin() ? 'white' : 'black' }} onPointerDown={this.MakePushpin}>
                              <FontAwesomeIcon icon="thumbtack" size="lg" />
                          </button>
                      </Tooltip>,
                      // <div key="7" className="anchorMenu-addTag" >
                      //     <input onChange={this.keyChanged} placeholder="Key" style={{ gridColumn: 1 }} />
                      //     <input onChange={this.valueChanged} placeholder="Value" style={{ gridColumn: 3 }} />
                      // </div>,
                      // <button key="8" className="antimodeMenu-button" title={`Add tag: ${this._keyValue} with value: ${this._valueValue}`} onPointerDown={this.addTag}>
                      //     <FontAwesomeIcon style={{ transition: "all .2s" }} color={this._added ? "#42f560" : "white"} icon="check" size="lg" /></button>,
                  ];

        return this.getElement(buttons);
    }
}