import Component from '@ember/component';
import { get } from '@ember/object';
import layout from '../../templates/components/models-table/table-header';

/**
 * Table header used within [models-table/table](Components.ModelsTableTable.html).
 *
 * Component contains grouped headers (if provided) bound from [ModelsTable.groupedHeaders](Components.ModelsTable.html#property_groupedHeaders), row with sorting buttons (usually this row also contains column headers) and row with filter boxes.
 *
 * Usage example:
 *
 * ```hbs
 * {{#models-table data=data columns=columns as |mt|}}
 *   {{#mt.table as |table|}}
 *     {{table.header}}
 *     {{! ... }}
 *   {{/mt.table}}
 *   {{! .... }}
 * {{/models-table}}
 * ```
 *
 * Usage with a block context:
 *
 * ```hbs
 * {{#models-table data=data columns=columns as |mt|}}
 *   {{#mt.table as |table|}}
 *     {{#table.header as |header|}}
 *       {{#each header.groupedHeaders as |groupedHeader|}}
 *         {{header.grouped-header groupedHeader=groupedHeader}}
 *       {{/each}}
 *       {{header.row-sorting}}
 *       {{header.row-filtering}}
 *     {{/table.header}}
 *     {{! ... }}
 *   {{/mt.table}}
 *   {{! .... }}
 * {{/models-table}}
 * ```
 *
 * ModelsTableTableHeader yields references to the following contextual components:
 *
 * * [models-table/grouped-header](Components.ModelsTableGroupedHeader.html) - component for groupedHeaders. It should be used for each groupedHeaders item
 * * [models-table/row-sorting](Components.ModelsTableRowSorting.html) - row with columns titles. Click on every cell will sort table data by selected column
 * * [models-table/row-filtering](Components.ModelsTableRowFiltering.html) - row with filter items. Every cell contains input or select-box
 *
 * Check own docs for each component to get detailed info.
 *
 * @namespace Components
 * @class ModelsTableTableHeader
 * @extends Ember.Component
 */
export default Component.extend({
  layout,
  tagName: 'thead',
  classNameBindings: ['noHeaderFilteringAndSorting:table-header-no-filtering-and-sorting', 'themeInstance.thead'],

  /**
   * Bound from {{#crossLink "Components.ModelsTable/noHeaderFilteringAndSorting:property"}}ModelsTable.noHeaderFilteringAndSorting{{/crossLink}}
   *
   * @property noHeaderFilteringAndSorting
   * @type boolean
   * @default null
   */
  noHeaderFilteringAndSorting: null,

  /**
   * Bound from {{#crossLink "Components.ModelsTable/groupedHeaders:property"}}ModelsTable.groupedHeaders{{/crossLink}}
   *
   * @property groupedHeaders
   * @type groupedHeader[][]
   * @default null
   */
  groupedHeaders: null,

  /**
   * Bound from {{#crossLink "Components.ModelsTable/visibleProcessedColumns:property"}}ModelsTable.visibleProcessedColumns{{/crossLink}}
   *
   * @property visibleProcessedColumns
   * @type ModelsTableColumn[]
   * @default null
   */
  visibleProcessedColumns: null,

  /**
   * Bound from {{#crossLink "Components.ModelsTable/processedColumns:property"}}ModelsTable.processedColumns{{/crossLink}}
   *
   * @property processedColumns
   * @type ModelsTableColumn[]
   * @default null
   */
  processedColumns: null,

  /**
   * Bound from {{#crossLink "Components.ModelsTable/useFilteringByColumns:property"}}ModelsTable.useFilteringByColumns{{/crossLink}}
   *
   * @property useFilteringByColumns
   * @type boolean
   * @default null
   */
  useFilteringByColumns: null,

  /**
   * Bound from {{#crossLink "Components.ModelsTable/themeInstance:property"}}ModelsTable.themeInstance{{/crossLink}}
   *
   * @property themeInstance
   * @type object
   * @default null
   */
  themeInstance: null,

  /**
   * Bound from {{#crossLink "Components.ModelsTable/useDataGrouping:property"}}ModelsTable.useDataGrouping{{/crossLink}}
   *
   * @property useDataGrouping
   * @type boolean
   * @default null
   */
  useDataGrouping: null,

  /**
   * Bound from {{#crossLink "Components.ModelsTable/displayGroupedValueAs:property"}}ModelsTable.displayGroupedValueAs{{/crossLink}}
   *
   * @property displayGroupedValueAs
   * @type string
   * @default null
   */
  displayGroupedValueAs: null,

  /**
   * Bound from {{#crossLink "Components.ModelsTable/currentGroupingPropertyName:property"}}ModelsTable.currentGroupingPropertyName{{/crossLink}}
   *
   * @property currentGroupingPropertyName
   * @type string
   * @default null
   */
  currentGroupingPropertyName: null,

  /**
   * Bound from {{#crossLink "Components.ModelsTable/groupHeaderCellComponent:property"}}ModelsTable.groupHeaderCellComponent{{/crossLink}}
   *
   * @property groupHeaderCellComponent
   * @type object
   * @default null
   */
  groupHeaderCellComponent: null,

  /**
   * Closure action {{#crossLink "Components.ModelsTable/actions.sort:method"}}ModelsTable.actions.sort{{/crossLink}}
   *
   * @event sort
   */
  sort: null,

  /**
   * Closure action {{#crossLink "Components.ModelsTable/actions.sendAction:method"}}ModelsTable.actions.sendAction{{/crossLink}}
   *
   * @event sendAction
   */
  sendAction: null,

  /**
   * Closure action {{#crossLink "Components.ModelsTable/actions.expandRow:method"}}ModelsTable.actions.expandRow{{/crossLink}}
   *
   * @event expandRow
   */
  expandRow: null,

  /**
   * Closure action {{#crossLink "Components.ModelsTable/actions.collapseRow:method"}}ModelsTable.actions.collapseRow{{/crossLink}}
   *
   * @event collapseRow
   */
  collapseRow: null,

  /**
   * Closure action {{#crossLink "Components.ModelsTable/actions.expandAllRows:method"}}ModelsTable.actions.expandAllRows{{/crossLink}}
   *
   * @event expandAllRows
   */
  expandAllRows: null,

  /**
   * Closure action {{#crossLink "Components.ModelsTable/actions.collapseAllRows:method"}}ModelsTable.actions.collapseAllRows{{/crossLink}}
   *
   * @event collapseAllRows
   */
  collapseAllRows: null,

  /**
   * Closure action {{#crossLink "Components.ModelsTable/actions.toggleAllSelection:method"}}ModelsTable.actions.toggleAllSelection{{/crossLink}}
   *
   * @event toggleAllSelection
   */
  toggleAllSelection: null,

  /**
   * Bound from {{#crossLink "Components.ModelsTable/expandedItems:property"}}ModelsTable.data{{/crossLink}}
   *
   * @property data
   * @default null
   * @type object[]
   */
  data: null,

  actions: {
    sort(column) {
      get(this, 'sort')(column);
    }
  }
});