import React = require('react');
import { FontAwesomeIcon } from '@fortawesome/react-fontawesome';
import { computed, ObservableSet } from 'mobx';
import { observer } from 'mobx-react';
import { Doc } from '../../../../fields/Doc';
import { undoBatch } from '../../../util/UndoManager';
import { ViewBoxBaseComponent } from '../../DocComponent';
import { OpenWhere } from '../../nodes/DocumentView';
import { FieldView, FieldViewProps } from '../../nodes/FieldView';
import { CollectionSchemaView } from './CollectionSchemaView';
import './CollectionSchemaView.scss';
import { SchemaTableCell } from './SchemaTableCell';
import { Colors } from '../../global/globalEnums';
import { DocCast, StrCast } from '../../../../fields/Types';

export interface SchemaRowBoxProps extends FieldViewProps {
    rowIndex: number;
    columnKeys: string[];
    columnWidths: number[];
    rowMenuWidth: number;
    selectedDocs: ObservableSet<Doc>;
    selectRow: (e: any, doc: Doc, ref: HTMLDivElement, index: number) => void;
    startDrag: (e: any, doc: Doc, ref: HTMLDivElement, index: number) => boolean;
    dragging: boolean;
    dropIndex: (index: number) => void;
    addRowRef: (doc: Doc, ref: HTMLDivElement) => void;
}

@observer
export class SchemaRowBox extends ViewBoxBaseComponent<FieldViewProps>() {
    public static LayoutString(fieldKey: string) {
        return FieldView.LayoutString(SchemaRowBox, fieldKey);
    }

    private _ref: HTMLDivElement | null = null;

    bounds = () => this._ref?.getBoundingClientRect();

    @computed get schemaView() {
        const vpath = this.props.docViewPath();
        console.log(vpath[vpath.length - 2]);
        return vpath.length > 1 ? (vpath[vpath.length - 2].ComponentView as CollectionSchemaView) : undefined;
    }

    @computed get schemaDoc() {
        return this.props.ContainingCollectionDoc!;
    }

    // isSelected = () => this.props.selectedDocs.has(this.props.Document);

    // @action
    // onRowPointerDown = (e: React.PointerEvent) => {
    //     e.stopPropagation();

    //     setupMoveUpEvents(
    //         this,
    //         e,
    //         e => this.props.startDrag(e, this.props.Document, this._ref!, this.props.rowIndex),
    //         emptyFunction,
    //         e => this.props.selectRow(e, this.props.Document, this._ref!, this.props.rowIndex)
    //     );
    // };

    // onPointerEnter = (e: any) => {
    //     if (!this.props.dragging) return;
    //     document.removeEventListener('pointermove', this.onPointerMove);
    //     document.addEventListener('pointermove', this.onPointerMove);
    // };

    // onPointerMove = (e: any) => {
    //     if (!this.props.dragging) return;
    //     let dragIsRow: boolean = true;
    //     DragManager.docsBeingDragged.forEach(doc => {
    //         dragIsRow = this.props.selectedDocs.has(doc);
    //     });
    //     if (this._ref && dragIsRow) {
    //         const rect = this._ref.getBoundingClientRect();
    //         const y = e.clientY - rect.top; //y position within the element.
    //         const height = this._ref.clientHeight;
    //         const halfLine = height / 2;
    //         if (y <= halfLine) {
    //             this._ref.style.borderTop = `solid 2px ${Colors.MEDIUM_BLUE}`;
    //             this._ref.style.borderBottom = '0px';
    //             this.props.dropIndex(this.props.rowIndex);
    //         } else if (y > halfLine) {
    //             this._ref.style.borderTop = '0px';
    //             this._ref.style.borderBottom = `solid 2px ${Colors.MEDIUM_BLUE}`;
    //             this.props.dropIndex(this.props.rowIndex + 1);
    //         }
    //     }
    // };

    onPointerLeave = (e: any) => {
        if (this._ref) {
            this._ref.style.borderTop = '0px';
            this._ref.style.borderBottom = '0px';
        }
        // document.removeEventListener('pointermove', this.onPointerMove);
    };

    render() {
        return (
            <div
                className="schema-row"
                style={this.props.isSelected() ? { backgroundColor: Colors.LIGHT_BLUE /*, opacity: this.props.dragging ? 0.5 : 1 */ } : {}}
                // onPointerDown={this.onRowPointerDown}
                // onPointerEnter={this.onPointerEnter}
                onPointerLeave={this.onPointerLeave}
                ref={(row: HTMLDivElement | null) => {
                    // row && this.props.addRowRef(this.props.Document, row);
                    this._ref = row;
                }}>
                <div
                    className="row-menu"
                    style={{
                        width: CollectionSchemaView._rowMenuWidth,
                    }}>
                    <div
                        className="schema-row-button"
                        onPointerDown={undoBatch(e => {
                            e.stopPropagation();
                            this.props.removeDocument?.(this.props.Document);
                        })}>
                        <FontAwesomeIcon icon="times" />
                    </div>
                    <div
                        className="schema-row-button"
                        onPointerDown={e => {
                            e.stopPropagation();
                            this.props.addDocTab(this.props.Document, OpenWhere.addRight);
                        }}>
                        <FontAwesomeIcon icon="external-link-alt" />
                    </div>
                </div>
                <div className="row-cells">
                    {this.schemaView?.columnKeys?.map((key, index) => (
                        <SchemaTableCell key={key} Document={this.props.Document} fieldKey={key} columnWidth={this.schemaView?.displayColumnWidths[index] ?? CollectionSchemaView._minColWidth} />
                    ))}
                </div>
            </div>
        );
    }
}