import { FrameworkElement } from '../../basecomponentmodel/FrameworkElement';
import { DependencyObject } from '../../basecomponentmodel/DependencyObject';
import { PresentationFrameworkCollectionModel } from './ItemsControlModel';
import { DependencyProperty } from '../../basecomponentmodel/DependencyProperty';
import { UIElementCollectionModel } from '../../basecomponentmodel/UIElementCollectionModel';
import { PanelModel } from './PanelModel';
import { AngularComponentId } from '../../helpers';
import { GridUnitType } from '../enums';

/**
 * Class that represents the model of a RowDefinition.
 *
 * @export
 * @class GridRowDefinition
 * @wType System.Windows.Controls.RowDefinition
 */
export class GridRowDefinition extends DependencyObject {
  /**
   * Internal height property
   *
   * @private
   * @type {GridLength}
   * @memberof GridRowDefinition
   */
  private _height: GridLength = new GridLength(1, GridUnitType.Star);

  /**
   * MinHeight property.
   *
   * @type {*}
   * @memberof GridRowDefinition
   */
  public MinHeight: any = null;

  /**
   * MaxHeight property.
   *
   * @type {*}
   * @memberof GridRowDefinition
   */
  public MaxHeight: any = null;

  /**
   * Gets the current value of Height
   *
   * @type {GridLength}
   * @memberof GridRowDefinition
   */
  public get Height(): GridLength {
    return this._height;
  }

  /**
   * Sets a new value for Height
   *
   * @memberof GridRowDefinition
   */
  public set Height(value: GridLength) {
    if (value != this._height) {
      this._height = value;
      this.change.fire(['RowDefinitionHeight']);
    }
  }
}

/**
 * Class that represents the model of a ColumnDefinition.
 *
 * @export
 * @class GridColumnDefinition
 * @extends {DependencyObject}
 * @wType System.Windows.Controls.ColumnDefinition
 */
export class GridColumnDefinition extends DependencyObject {
  /**
   * Width property.
   *
   * @private
   * @type {GridLength}
   * @memberof GridColumnDefinition
   */
  private _width: GridLength = new GridLength(1, GridUnitType.Star);

  /**
   * MinWidth property.
   *
   * @type {*}
   * @memberof GridColumnDefinition
   */
  public MinWidth: any = null;

  /**
   * MaxWidth property.
   *
   * @type {*}
   * @memberof GridColumnDefinition
   */
  public MaxWidth: any = null;

  /**
   * Gets or sets the width.
   *
   * @type {GridLength}
   * @memberof GridColumnDefinition
   */
  public get Width(): GridLength {
    return this._width;
  }
  public set Width(value: GridLength) {
    if (value !== this._width) {
      this._width = value;
      this.change.fire(['ColumnDefinitionWidth']);
    }
  }
}

/**
 * Class that represents the model of a ColumnDefinitionCollection.
 *
 * @export
 * @class GridColumnDefinitions
 * @extends {PresentationFrameworkCollectionModel<GridColumnDefinition>}
 * @wType System.Windows.Controls.ColumnDefinitionCollection
 */
export class GridColumnDefinitions extends PresentationFrameworkCollectionModel<GridColumnDefinition> {
  constructor(private grid: GridModel) {
    super();
  }
}

/**
 * Class that represents the model of a RowDefinitionCollection.
 *
 * @export
 * @class GridRowDefinitions
 * @extends {PresentationFrameworkCollectionModel<GridRowDefinition>}
 * @wType System.Windows.Controls.RowDefinitionCollection
 */
export class GridRowDefinitions extends PresentationFrameworkCollectionModel<GridRowDefinition> {
  public MinWidth: number = 0;
  constructor(private grid: GridModel) {
    super();
  }
}

/**
 * Class that represents the model of a GridLength.
 *
 * @export
 * @class GridLength
 * @wType System.Windows.GridLength
 */
export class GridLength {
  public static Auto: any = new GridLength(0, GridUnitType.Auto);
  public get Value(): number {
    return this.length;
  }
  constructor(
    public length: number,
    public unitType: GridUnitType = GridUnitType.Pixel
  ) {}

  /**
   * Gets a value indicating if the grid lenght unit is a absolute value
   *
   * @readonly
   * @type {boolean}
   * @memberof GridLength
   */
  public get IsAbsolute(): boolean {
    return this.unitType === GridUnitType.Pixel;
  }

  /**
   * Gets a value indicating if the grid lenght unit is an auto value
   *
   * @readonly
   * @type {boolean}
   * @memberof GridLength
   */
  public get IsAuto(): boolean {
    return this.unitType === GridUnitType.Auto;
  }

  /**
   * Gets a value indicating if the grid lenght unit is a star value
   *
   * @readonly
   * @type {boolean}
   * @memberof GridLength
   */
  public get IsStar(): boolean {
    return this.unitType === GridUnitType.Star;
  }
}

/**
 * Class that represents the model of a Grid.
 *
 * @export
 * @class GridModel
 * @extends {PanelModel}
 * @wType System.Windows.Controls.Grid
 */
export class GridModel extends PanelModel {
  public AngularComponentId = AngularComponentId.gridPanel;
  public attachedComponentInstance;
  public ColumnDefinitions: GridColumnDefinitions;
  public RowDefinitions: GridRowDefinitions;

  /**
   * ColumnProperty dependency property
   *
   * @static
   * @type {DependencyProperty}
   * @memberof GridPanelModel
   */
  static ColumnProperty: DependencyProperty = new DependencyProperty(
    'Grid_Column',
    null,
    null
  );

  /**
   * ColumnSpanProperty dependency property
   *
   * @static
   * @type {DependencyProperty}
   * @memberof GridPanelModel
   */
  static ColumnSpanProperty: DependencyProperty = new DependencyProperty(
    'Grid_ColumnSpan',
    null,
    null
  );

  /**
   * RowProperty dependency property
   *
   * @static
   * @type {DependencyProperty}
   * @memberof GridPanelModel
   */
  static RowProperty: DependencyProperty = new DependencyProperty(
    'Grid_Row',
    null,
    null
  );

  /**
   * RowSpanProperty dependency property
   *
   * @static
   * @type {DependencyProperty}
   * @memberof GridPanelModel
   */
  static RowSpanProperty: DependencyProperty = new DependencyProperty(
    'Grid_RowSpan',
    null,
    null
  );

  /**
   * ShowGridLinesProperty dependency property
   *
   * @static
   * @type {DependencyProperty}
   * @memberof GridPanelModel
   */
  static ShowGridLinesProperty: DependencyProperty = new DependencyProperty(
    'Grid_ShowGridLines',
    false,
    null
  );

  constructor() {
    super();
    this.ColumnDefinitions = new GridColumnDefinitions(this);
    this.RowDefinitions = new GridRowDefinitions(this);
    this.Children = new UIElementCollectionModel(this);
  }

  public static getColumnInformation(cell: any): number {
    return cell.getValue(GridModel.ColumnProperty);
  }
  public static getRowInformation(cell: any): number {
    return cell.getValue(GridModel.RowProperty);
  }
  public static setRowInformation(cell: DependencyObject, row: number) {
    cell.setValue(GridModel.RowProperty, row);
  }
  public static setColumnInformation(cell: DependencyObject, column: number) {
    cell.setValue(GridModel.ColumnProperty, column);
  }

  public static SetRow(element: FrameworkElement, row: number) {
    element.setValue(GridModel.RowProperty, row);
  }
  public static GetRow(element: FrameworkElement) {
    return element.getValue(GridModel.RowProperty);
  }
  public static SetColumn(element: FrameworkElement, column: number) {
    element.setValue(GridModel.ColumnProperty, column);
  }
  public static GetColumn(element: FrameworkElement) {
    return element.getValue(GridModel.ColumnProperty);
  }
  public static SetRowSpan(element: FrameworkElement, rowSpan: number) {
    element.setValue(GridModel.RowSpanProperty, rowSpan);
  }
  public static GetRowSpan(element: FrameworkElement): any {
    return element.getValue(GridModel.RowSpanProperty);
  }
  public static SetColumnSpan(element: FrameworkElement, columnSpan: number) {
    element.setValue(GridModel.ColumnSpanProperty, columnSpan);
  }
  public static GetColumnSpan(element: FrameworkElement): any {
    return element.getValue(GridModel.ColumnSpanProperty);
  }
}