/* eslint-disable @typescript-eslint/no-unused-vars */
/**
 * Angular wrapper for Bryntum Splitter
 */

import { Component, ElementRef, EventEmitter, Output, Input, SimpleChange, SimpleChanges, OnDestroy, OnInit } from '@angular/core';

import WrapperHelper from './wrapper.helper';

import { AlignSpec, Base, Color, DomConfig, KeyMapConfig, MaskConfig, ReactJSX, Rectangle, Scroller, ScrollerConfig, Splitter, SplitterListeners, TabConfig, TooltipConfig, VueConfig, Widget } from '@bryntum/calendar';

import { DomHelper, StringHelper } from '@bryntum/calendar';
import { initThemeInShadowRoots } from './shadowdom.helper';

export type BryntumSplitterProps = {
    // Configs
    /**
     * Element (or element id) to adopt as this Widget's encapsulating element. The widget's
     * content will be placed inside this element.
     * [More...](https://bryntum.com/products/calendar/docs/api/Core/widget/Splitter#config-adopt)
     */
    adopt ? : HTMLElement|string
    /**
     * *Only valid if this Widget is [floating](https://bryntum.com/products/calendar/docs/api/Core/widget/Widget#config-floating).*
     * [More...](https://bryntum.com/products/calendar/docs/api/Core/widget/Splitter#config-align)
     */
    align ? : AlignSpec|string
    /**
     * When this widget is a child of a [Container](https://bryntum.com/products/calendar/docs/api/Core/widget/Container), it will by default be participating in a
     * flexbox layout. This config allows you to set this widget's
     * [align-self](https://developer.mozilla.org/en-US/docs/Web/CSS/align-self) style.
     */
    alignSelf ? : string
    /**
     * *Only valid if this Widget is [floating](https://bryntum.com/products/calendar/docs/api/Core/widget/Widget#config-floating) and being shown through [showBy](#Core/widget/Widget#function-showBy).*
     * `true` to show a connector arrow pointing to the align target.
     */
    anchor ? : boolean
    /**
     * Element (or the id of an element) to append this widget's element to. Can be configured, or set once at
     * runtime. To access the element of a rendered widget, see [element](https://bryntum.com/products/calendar/docs/api/Core/widget/Widget#property-element).
     */
    appendTo ? : HTMLElement|string
    /**
     * A localizable string (May contain `'L{}'` tokens which resolve in the locale file) to inject
     * into an element which will be linked using the `aria-describedby` attribute.
     * [More...](https://bryntum.com/products/calendar/docs/api/Core/widget/Splitter#config-ariaDescription)
     */
    ariaDescription ? : string
    /**
     * A localizable string (May contain `'L{}'` tokens which resolve in the locale file) to inject as
     * the `aria-label` attribute.
     * [More...](https://bryntum.com/products/calendar/docs/api/Core/widget/Splitter#config-ariaLabel)
     */
    ariaLabel ? : string
    /**
     * An object where property names with a truthy value indicate which events should bubble up the ownership
     * hierarchy when triggered.
     * [More...](https://bryntum.com/products/calendar/docs/api/Core/widget/Splitter#config-bubbleEvents)
     */
    bubbleEvents ? : object
    /**
     * Set to `false` to not call onXXX method names (e.g. `onShow`, `onClick`), as an easy way to listen for events.
     * [More...](https://bryntum.com/products/calendar/docs/api/Core/widget/Splitter#config-callOnFunctions)
     */
    callOnFunctions ? : boolean
    /**
     * By default, if an event handler throws an exception, the error propagates up the stack and the
     * application state is undefined. Code which follows the event handler will *not* be executed.
     * [More...](https://bryntum.com/products/calendar/docs/api/Core/widget/Splitter#config-catchEventHandlerExceptions)
     */
    catchEventHandlerExceptions ? : boolean
    /**
     * *Only valid if this Widget is [floating](https://bryntum.com/products/calendar/docs/api/Core/widget/Widget#config-floating).*
     * Set to `true` to centre the Widget in browser viewport space.
     */
    centered ? : boolean
    /**
     * Custom CSS classes to add to element.
     * May be specified as a space separated string, or as an object in which property names
     * with truthy values are used as the class names:
     * [More...](https://bryntum.com/products/calendar/docs/api/Core/widget/Splitter#config-cls)
     */
    cls ? : string|object
    /**
     * Applies the specified color to the widget, by setting the `--b-primary` CSS variable in the widgets
     * `style` block.
     * [More...](https://bryntum.com/products/calendar/docs/api/Core/widget/Splitter#config-color)
     */
    color ? : Color
    /**
     * Programmatic control over which column to start in when used in a grid layout.
     */
    column ? : number
    config ? : object
    /**
     * *Only valid if this Widget is [floating](https://bryntum.com/products/calendar/docs/api/Core/widget/Widget#config-floating) or [positioned](#Core/widget/Widget#config-positioned).*
     * Element, Widget or Rectangle to which this Widget is constrained.
     */
    constrainTo ? : HTMLElement|Widget|Rectangle
    /**
     * The HTML content that coexists with sibling elements which may have been added to the
     * [contentElement](https://bryntum.com/products/calendar/docs/api/Core/widget/Widget#property-contentElement) by plugins and features.
     * When specifying html, this widget's element will also have the [htmlCls](https://bryntum.com/products/calendar/docs/api/Core/widget/Widget#config-htmlCls)
     * class added to its classList, to allow targeted styling.
     */
    content ? : string
    /**
     * Custom CSS classes to add to the [contentElement](https://bryntum.com/products/calendar/docs/api/Core/widget/Widget#property-contentElement).
     * May be specified as a space separated string, or as an object in which property names
     * with truthy values are used as the class names:
     * [More...](https://bryntum.com/products/calendar/docs/api/Core/widget/Splitter#config-contentElementCls)
     */
    contentElementCls ? : string|object
    /**
     * When this Widget configuration is used in the Grid's RowExpander feature's `widget` config, provide the
     * field on the expanded record to use for populating this widget's store (if applicable)
     */
    dataField ? : string
    /**
     * Object to apply to elements dataset (each key will be used as a data-attribute on the element)
     */
    dataset ? : Record<string, string>
    /**
     * The name of the property to set when a single value is to be applied to this Widget. Such as when used
     * in a grid WidgetColumn, this is the property to which the column's `field` is applied.
     */
    defaultBindProperty ? : string
    /**
     * Check for CSS compatibility and inclusion related issues and try to auto fix them. Performs the following
     * checks:
     * [More...](https://bryntum.com/products/calendar/docs/api/Core/widget/Splitter#config-detectCSSCompatibilityIssues)
     */
    detectCSSCompatibilityIssues ? : boolean
    /**
     * Disable or enable the widget. It is similar to [readOnly](https://bryntum.com/products/calendar/docs/api/Core/widget/Widget#config-readOnly) except a disabled widget
     * cannot be focused, uses a different rendition (usually greyish) and does not allow selecting its value.
     * [More...](https://bryntum.com/products/calendar/docs/api/Core/widget/Splitter#config-disabled)
     */
    disabled ? : boolean|'inert'
    /**
     * Controls the placement of this widget when it is added to a [panel's ](https://bryntum.com/products/calendar/docs/api/Core/widget/Panel)
     * [strips collection](https://bryntum.com/products/calendar/docs/api/Core/widget/Panel#config-strips). Typical values for this config are `'top'`,
     * `'bottom'`, `'left'`, or `'right'`, which cause the widget to be placed on that side of the panel's
     * body. Such widgets are called "edge strips".
     * [More...](https://bryntum.com/products/calendar/docs/api/Core/widget/Splitter#config-dock)
     */
    dock ? : 'top'|'bottom'|'left'|'right'|'start'|'end'|'header'|'pre-header'|object
    /**
     * *Only valid if this Widget is [floating](https://bryntum.com/products/calendar/docs/api/Core/widget/Widget#config-floating).*
     * Set to `true` to be able to drag a widget freely on the page. Or set to an object with a ´handleSelector´
     * property which controls when a drag should start.
     * [More...](https://bryntum.com/products/calendar/docs/api/Core/widget/Splitter#config-draggable)
     * @property {string} handleSelector CSS selector used to determine if drag can be started from a mouse-downed element inside the widget
     */
    draggable ? : boolean|object
    /**
     * An object specifying attributes to assign to the root element of this widget.
     * Set `null` value to attribute to remove it.
     * [More...](https://bryntum.com/products/calendar/docs/api/Core/widget/Splitter#config-elementAttributes)
     */
    elementAttributes ? : Record<string, string|null>
    extraData ? : any
    /**
     * When this widget is a child of a [Container](https://bryntum.com/products/calendar/docs/api/Core/widget/Container), it will by default be participating in a
     * flexbox layout. This config allows you to set this widget's
     * [flex](https://developer.mozilla.org/en-US/docs/Web/CSS/flex) style.
     * This may be configured as a single number or a `&lt;flex-grow&gt; &lt;flex-shrink&gt; &lt;flex-basis&gt;` format string.
     * numeric-only values are interpreted as the `flex-grow` value.
     */
    flex ? : number|string
    /**
     * Set to `true` to move the widget out of the document flow and position it
     * absolutely in browser viewport space.
     */
    floating ? : boolean
    /**
     * Widget's height, used to set element `style.height`. Either specify a valid height string or a number,
     * which will get 'px' appended. We recommend using CSS as the primary way to control height, but in some
     * cases this config is convenient.
     */
    height ? : string|number
    /**
     * Configure with true to make widget initially hidden.
     */
    hidden ? : boolean
    /**
     * *Only valid if this Widget is [floating](https://bryntum.com/products/calendar/docs/api/Core/widget/Widget#config-floating).*
     * [More...](https://bryntum.com/products/calendar/docs/api/Core/widget/Splitter#config-hideAnimation)
     */
    hideAnimation ? : boolean|object
    /**
     * The HTML to display initially or a function returning the markup (called at widget construction time).
     * [More...](https://bryntum.com/products/calendar/docs/api/Core/widget/Splitter#config-html)
     * @param {Core.widget.Widget} widget The calling Widget
     */
    html ? : string|((widget: Widget) => void)|DomConfig|DomConfig[]|VueConfig|ReactJSX
    /**
     * The CSS class(es) to add when HTML content is being applied to this widget.
     */
    htmlCls ? : string|object
    /**
     * Widget id, if not specified one will be generated. Also used for lookups through Widget.getById
     */
    id ? : string
    /**
     * Determines if the widgets read-only state should be controlled by its parent.
     * [More...](https://bryntum.com/products/calendar/docs/api/Core/widget/Splitter#config-ignoreParentReadOnly)
     */
    ignoreParentReadOnly ? : boolean
    /**
     * Element (or element id) to insert this widget before. If provided, [appendTo](https://bryntum.com/products/calendar/docs/api/Core/widget/Widget#config-appendTo) config is ignored.
     */
    insertBefore ? : HTMLElement|string
    /**
     * Element (or element id) to append this widget element to, as a first child. If provided, [appendTo](https://bryntum.com/products/calendar/docs/api/Core/widget/Widget#config-appendTo) config is ignored.
     */
    insertFirst ? : HTMLElement|string
    /**
     * An object whose keys are the [key](https://developer.mozilla.org/en-US/docs/Web/API/KeyboardEvent/key) name
     * and optional modifier prefixes: `'Ctrl+'`, `'Alt+'`, `'Meta+'`, and `'Shift+'` (case-insensitive). The values
     * are the name of the instance method to call when the keystroke is received.
     * [More...](https://bryntum.com/products/calendar/docs/api/Core/widget/Splitter#config-keyMap)
     */
    keyMap ? : Record<string, KeyMapConfig>
    /**
     * The listener set for this object.
     * [More...](https://bryntum.com/products/calendar/docs/api/Core/widget/Splitter#config-listeners)
     */
    listeners ? : SplitterListeners
    /**
     * A class translations of which are used for translating this entity.
     * This is often used when translations of an item are defined on its container class.
     * For example:
     * [More...](https://bryntum.com/products/calendar/docs/api/Core/widget/Splitter#config-localeClass)
     */
    localeClass ? : typeof Base
    /**
     * Set to `false` to disable localization of this object.
     */
    localizable ? : boolean
    /**
     * List of properties which values should be translated automatically upon a locale applying.
     * In case there is a need to localize not typical value (not a String value or a field with re-defined setter/getter),
     * you could use 'localeKey' meta configuration.
     * Example:
     * [More...](https://bryntum.com/products/calendar/docs/api/Core/widget/Splitter#config-localizableProperties)
     */
    localizableProperties ? : string[]
    /**
     * Widget's margin. This may be configured as a single number or a `TRBL` format string.
     * numeric-only values are interpreted as pixels.
     */
    margin ? : number|string
    /**
     * This config object contains the defaults for the [Mask](https://bryntum.com/products/calendar/docs/api/Core/widget/Mask) created for the
     * [masked](https://bryntum.com/products/calendar/docs/api/Core/widget/Widget#config-masked) config. Any properties specified in the `masked` config will override these
     * values.
     */
    maskDefaults ? : MaskConfig
    /**
     * Set to `true` to apply the default mask to the widget. Alternatively, this can be the mask message or a
     * [Mask](https://bryntum.com/products/calendar/docs/api/Core/widget/Mask) config object.
     */
    masked ? : boolean|string|MaskConfig
    /**
     * The element's maxHeight. Can be either a String or a Number (which will have 'px' appended). Note that
     * like [height](https://bryntum.com/products/calendar/docs/api/Core/widget/Widget#config-height), *reading* the value will return the numeric value in pixels.
     */
    maxHeight ? : string|number
    /**
     * *Only valid if this Widget is [floating](https://bryntum.com/products/calendar/docs/api/Core/widget/Widget#config-floating).*
     * [More...](https://bryntum.com/products/calendar/docs/api/Core/widget/Splitter#config-maximizeOnMobile)
     */
    maximizeOnMobile ? : number|string
    /**
     * The elements maxWidth. Can be either a String or a Number (which will have 'px' appended). Note that
     * like [width](https://bryntum.com/products/calendar/docs/api/Core/widget/Widget#config-width), *reading* the value will return the numeric value in pixels.
     */
    maxWidth ? : string|number
    /**
     * The element's minHeight. Can be either a String or a Number (which will have 'px' appended). Note that
     * like [height](https://bryntum.com/products/calendar/docs/api/Core/widget/Widget#config-height), *reading* the value will return the numeric value in pixels.
     */
    minHeight ? : string|number
    /**
     * The elements minWidth. Can be either a String or a Number (which will have 'px' appended). Note that
     * like [width](https://bryntum.com/products/calendar/docs/api/Core/widget/Widget#config-width), *reading* the value will return the numeric value in pixels.
     */
    minWidth ? : string|number
    /**
     * When this is configured as `true` a [ResizeObserver](https://developer.mozilla.org/en-US/docs/Web/API/ResizeObserver)
     * is used to monitor this element for size changes caused by either style manipulation, or by CSS
     * layout.
     * [More...](https://bryntum.com/products/calendar/docs/api/Core/widget/Splitter#config-monitorResize)
     * @property {boolean} immediate Set to `true` to receive resize notifications immediately.
     */
    monitorResize ? : boolean|object
    /**
     * The splitter's orientation, configurable with 'auto', 'horizontal' or 'vertical'.
     * [More...](https://bryntum.com/products/calendar/docs/api/Core/widget/Splitter#config-orientation)
     */
    orientation ? : 'auto'|'horizontal'|'vertical'
    /**
     * Set to `true` when a widget is rendered into another widget's [contentElement](https://bryntum.com/products/calendar/docs/api/Core/widget/Widget#property-contentElement), but must
     * not participate in the standard layout of that widget, and must be positioned relatively to that
     * widget's [contentElement](https://bryntum.com/products/calendar/docs/api/Core/widget/Widget#property-contentElement).
     * [More...](https://bryntum.com/products/calendar/docs/api/Core/widget/Splitter#config-positioned)
     */
    positioned ? : boolean
    /**
     * Prevent tooltip from being displayed on touch devices. Useful for example for buttons that display a
     * menu on click etc, since the tooltip would be displayed at the same time.
     */
    preventTooltipOnTouch ? : boolean
    /**
     * Whether this widget is read-only.  This is only valid if the widget is an input
     * field, <strong>or contains input fields at any depth</strong>.
     * [More...](https://bryntum.com/products/calendar/docs/api/Core/widget/Splitter#config-readOnly)
     */
    readOnly ? : boolean
    relayStoreEvents ? : boolean
    /**
     * Configure as `true` to have the component display a translucent ripple when its
     * [focusElement](https://bryntum.com/products/calendar/docs/api/Core/widget/Widget#property-focusElement), or [element](#Core/widget/Widget#property-element) is tapped <em>if the
     * current theme supports ripples</em>. Out of the box, only the Material theme supports ripples.
     * [More...](https://bryntum.com/products/calendar/docs/api/Core/widget/Splitter#config-ripple)
     * @property {string} [delegate] A CSS selector to filter which child elements trigger ripples. By default, the ripple is clipped to the triggering element.
     * @property {string} [color] A CSS color name or specification.
     * @property {number} [radius] The ending radius of the ripple. Note that it will be clipped by the target element by default.
     * @property {string} [clip] A string which describes how to clip the ripple if it is not to be clipped to the default element. Either the property of the widget to use as the clipping element, or a selector to allow clipping to the closest matching ancestor to the target element.
     */
    ripple ? : boolean|object
    /**
     * The ARIA role to apply to this widget's element. By default, this is set to `'presentation'` to avoid
     * accidentally applying a role which may interfere with screen readers.
     * [More...](https://bryntum.com/products/calendar/docs/api/Core/widget/Splitter#config-role)
     */
    role ? : string
    /**
     * If you are rendering this widget to a shadow root inside a web component, set this config to the shadowRoot. If not inside a web component, set it to `document.body`
     */
    rootElement ? : ShadowRoot|HTMLElement
    /**
     * This may be configured as `true` to make the widget's element use the `direction:rtl` style.
     * [More...](https://bryntum.com/products/calendar/docs/api/Core/widget/Splitter#config-rtl)
     */
    rtl ? : boolean
    /**
     * Specifies whether (and optionally in which axes) a Widget may scroll. `true` means this widget may scroll
     * in both axes. May be an object containing boolean `overflowX` and `overflowY` properties which are
     * applied to CSS style properties `overflowX` and `overflowY`. If they are boolean, they are translated to
     * CSS overflow properties thus:
     * [More...](https://bryntum.com/products/calendar/docs/api/Core/widget/Splitter#config-scrollable)
     */
    scrollable ? : boolean|ScrollerConfig|Scroller
    /**
     * Defines what to do if document is scrolled while Widget is visible (only relevant when floating is set to `true`).
     * Valid values: ´null´: do nothing, ´hide´: hide the widget or ´realign´: realign to the target if possible.
     */
    scrollAction ? : 'hide'|'realign'|null
    /**
     * *Only valid if this Widget is [floating](https://bryntum.com/products/calendar/docs/api/Core/widget/Widget#config-floating).*
     * [More...](https://bryntum.com/products/calendar/docs/api/Core/widget/Splitter#config-showAnimation)
     */
    showAnimation ? : boolean|object
    /**
     * Set to `true` to show the splitter's collapse/expand buttons, or to 'start' or 'end' to only show
     * buttons pointing to the previous or next element respectively.
     * [More...](https://bryntum.com/products/calendar/docs/api/Core/widget/Splitter#config-showButtons)
     */
    showButtons ? : boolean|'start'|'end'
    /**
     * Set to `false` to not show the tooltip when this widget is [disabled](https://bryntum.com/products/calendar/docs/api/Core/widget/Widget#property-disabled)
     */
    showTooltipWhenDisabled ? : boolean
    /**
     * Programmatic control over how many columns to span when used in a grid layout.
     */
    span ? : number
    /**
     * A configuration for the [tab](https://bryntum.com/products/calendar/docs/api/Core/widget/Tab) created for this widget when it is placed in a
     * [TabPanel](https://bryntum.com/products/calendar/docs/api/Core/widget/TabPanel). For example, this config can be used to control the icon of the `tab` for
     * this widget:
     * [More...](https://bryntum.com/products/calendar/docs/api/Core/widget/Splitter#config-tab)
     */
    tab ? : boolean|TabConfig
    /**
     * The tag name of this Widget's root element
     */
    tag ? : string
    /**
     * Text alignment: 'left', 'center' or 'right'. Also accepts direction neutral 'start' and 'end'.
     * [More...](https://bryntum.com/products/calendar/docs/api/Core/widget/Splitter#config-textAlign)
     */
    textAlign ? : 'left'|'center'|'right'|'start'|'end'
    /**
     * A title to display for the widget. Only in effect when inside a container that uses it (such as TabPanel)
     */
    title ? : string
    /**
     * Tooltip for the widget, either as a string or as a Tooltip config object.
     * [More...](https://bryntum.com/products/calendar/docs/api/Core/widget/Splitter#config-tooltip)
     */
    tooltip ? : string|TooltipConfig|null
    type ? : 'splitter'
    /**
     * Custom CSS class name suffixes to apply to the elements rendered by this widget. This may be specified
     * as a space separated string, an array of strings, or as an object in which property names with truthy
     * values are used as the class names.
     * [More...](https://bryntum.com/products/calendar/docs/api/Core/widget/Splitter#config-ui)
     */
    ui ? : string|object
    /**
     * A widgets weight determines its position among siblings when added to a [Container](https://bryntum.com/products/calendar/docs/api/Core/widget/Container).
     * Higher weights go further down.
     */
    weight ? : number
    /**
     * Widget's width, used to set element `style.width`. Either specify a valid width string or a number, which
     * will get 'px' appended. We recommend using CSS as the primary way to control width, but in some cases
     * this config is convenient.
     */
    width ? : string|number
    /**
     * The x position for the widget.
     * [More...](https://bryntum.com/products/calendar/docs/api/Core/widget/Splitter#config-x)
     */
    x ? : number
    /**
     * The y position for the widget.
     * [More...](https://bryntum.com/products/calendar/docs/api/Core/widget/Splitter#config-y)
     */
    y ? : number

}

@Component({
    selector : 'bryntum-splitter',
    template : ''
})
export class BryntumSplitterComponent implements OnInit, OnDestroy {

    public static instanceClass = Splitter;

    public static instanceName = 'Splitter';

    private static bryntumEvents: string[] = [
        'onBeforeDestroy',
        'onBeforeHide',
        'onBeforeShow',
        'onCatchAll',
        'onDestroy',
        'onDrag',
        'onDragStart',
        'onDrop',
        'onElementCreated',
        'onFocusIn',
        'onFocusOut',
        'onHide',
        'onPaint',
        'onReadOnly',
        'onRecompose',
        'onResize',
        'onShow'
    ];

    private static bryntumFeatureNames: string[] = [

    ];

    private static bryntumConfigs: string[] = BryntumSplitterComponent.bryntumFeatureNames.concat([
        'adopt',
        'align',
        'alignSelf',
        'anchor',
        'appendTo',
        'ariaDescription',
        'ariaLabel',
        'bubbleEvents',
        'callOnFunctions',
        'catchEventHandlerExceptions',
        'centered',
        'cls',
        'color',
        'column',
        'config',
        'constrainTo',
        'content',
        'contentElementCls',
        'dataField',
        'dataset',
        'defaultBindProperty',
        'detectCSSCompatibilityIssues',
        'disabled',
        'dock',
        'draggable',
        'elementAttributes',
        'extraData',
        'flex',
        'floating',
        'height',
        'hidden',
        'hideAnimation',
        'html',
        'htmlCls',
        'id',
        'ignoreParentReadOnly',
        'insertBefore',
        'insertFirst',
        'keyMap',
        'listeners',
        'localeClass',
        'localizable',
        'localizableProperties',
        'margin',
        'maskDefaults',
        'masked',
        'maxHeight',
        'maximizeOnMobile',
        'maxWidth',
        'minHeight',
        'minWidth',
        'monitorResize',
        'orientation',
        'positioned',
        'preventTooltipOnTouch',
        'readOnly',
        'relayStoreEvents',
        'ripple',
        'role',
        'rootElement',
        'rtl',
        'scrollable',
        'scrollAction',
        'showAnimation',
        'showButtons',
        'showTooltipWhenDisabled',
        'span',
        'tab',
        'tag',
        'textAlign',
        'title',
        'tooltip',
        'type',
        'ui',
        'weight',
        'width',
        'x',
        'y'
    ]);

    private static bryntumConfigsOnly: string[] = [
        'adopt',
        'align',
        'anchor',
        'ariaDescription',
        'ariaLabel',
        'bubbleEvents',
        'centered',
        'color',
        'config',
        'constrainTo',
        'contentElementCls',
        'dataField',
        'defaultBindProperty',
        'detectCSSCompatibilityIssues',
        'dock',
        'draggable',
        'elementAttributes',
        'floating',
        'hideAnimation',
        'htmlCls',
        'ignoreParentReadOnly',
        'listeners',
        'localeClass',
        'localizable',
        'localizableProperties',
        'maskDefaults',
        'masked',
        'monitorResize',
        'orientation',
        'positioned',
        'preventTooltipOnTouch',
        'relayStoreEvents',
        'ripple',
        'role',
        'rootElement',
        'scrollAction',
        'showAnimation',
        'showButtons',
        'showTooltipWhenDisabled',
        'tab',
        'tag',
        'textAlign',
        'title',
        'type',
        'ui',
        'weight'
    ];

    private static bryntumProps: string[] = BryntumSplitterComponent.bryntumFeatureNames.concat([
        'alignSelf',
        'appendTo',
        'callOnFunctions',
        'catchEventHandlerExceptions',
        'cls',
        'column',
        'content',
        'dataset',
        'disabled',
        'extraData',
        'flex',
        'height',
        'hidden',
        'html',
        'id',
        'insertBefore',
        'insertFirst',
        'keyMap',
        'margin',
        'maxHeight',
        'maximizeOnMobile',
        'maxWidth',
        'minHeight',
        'minWidth',
        'parent',
        'readOnly',
        'rtl',
        'scrollable',
        'span',
        'tooltip',
        'width',
        'x',
        'y'
    ]);

    private elementRef: ElementRef;
    public instance!: Splitter;

    private bryntumConfig = {
        adopt            : undefined,
        appendTo         : undefined,
        href             : undefined,
        angularComponent : this,
        features         : {},
        listeners        : {}
    };

    constructor(element: ElementRef) {
        this.elementRef = element;
    }

    // Configs only
    @Input() adopt                        ! : HTMLElement|string;
    @Input() align                        ! : AlignSpec|string;
    @Input() anchor                       ! : boolean;
    @Input() ariaDescription              ! : string;
    @Input() ariaLabel                    ! : string;
    @Input() bubbleEvents                 ! : object;
    @Input() centered                     ! : boolean;
    @Input() color                        ! : Color;
    @Input() config                       ! : object;
    @Input() constrainTo                  ! : HTMLElement|Widget|Rectangle;
    @Input() contentElementCls            ! : string|object;
    @Input() dataField                    ! : string;
    @Input() defaultBindProperty          ! : string;
    @Input() detectCSSCompatibilityIssues ! : boolean;
    @Input() dock                         ! : 'top'|'bottom'|'left'|'right'|'start'|'end'|'header'|'pre-header'|object;
    @Input() draggable                    ! : boolean|object;
    @Input() elementAttributes            ! : Record<string, string|null>;
    @Input() floating                     ! : boolean;
    @Input() hideAnimation                ! : boolean|object;
    @Input() htmlCls                      ! : string|object;
    @Input() ignoreParentReadOnly         ! : boolean;
    @Input() listeners                    ! : SplitterListeners;
    @Input() localeClass                  ! : typeof Base;
    @Input() localizable                  ! : boolean;
    @Input() localizableProperties        ! : string[];
    @Input() maskDefaults                 ! : MaskConfig;
    @Input() masked                       ! : boolean|string|MaskConfig;
    @Input() monitorResize                ! : boolean|object;
    @Input() orientation                  ! : 'auto'|'horizontal'|'vertical';
    @Input() positioned                   ! : boolean;
    @Input() preventTooltipOnTouch        ! : boolean;
    @Input() relayStoreEvents             ! : boolean;
    @Input() ripple                       ! : boolean|object;
    @Input() role                         ! : string;
    @Input() rootElement                  ! : ShadowRoot|HTMLElement;
    @Input() scrollAction                 ! : 'hide'|'realign'|null;
    @Input() showAnimation                ! : boolean|object;
    @Input() showButtons                  ! : boolean|'start'|'end';
    @Input() showTooltipWhenDisabled      ! : boolean;
    @Input() tab                          ! : boolean|TabConfig;
    @Input() tag                          ! : string;
    @Input() textAlign                    ! : 'left'|'center'|'right'|'start'|'end';
    @Input() title                        ! : string;
    @Input() type                         ! : 'splitter';
    @Input() ui                           ! : string|object;
    @Input() weight                       ! : number;

    // Configs and properties
    @Input() alignSelf                   ! : string;
    @Input() appendTo                    ! : HTMLElement|string;
    @Input() callOnFunctions             ! : boolean;
    @Input() catchEventHandlerExceptions ! : boolean;
    @Input() cls                         ! : string|object;
    @Input() column                      ! : number;
    @Input() content                     ! : string;
    @Input() dataset                     ! : object|Record<string, string>;
    @Input() disabled                    ! : boolean|'inert';
    @Input() extraData                   ! : any;
    @Input() flex                        ! : number|string;
    @Input() height                      ! : number|string;
    @Input() hidden                      ! : boolean;
    @Input() html                        ! : string|((widget: Widget) => void)|DomConfig|DomConfig[]|VueConfig|ReactJSX|(string|((widget: Widget) => void)|DomConfig|DomConfig[]|VueConfig|ReactJSX);
    @Input() id                          ! : string;
    @Input() insertBefore                ! : HTMLElement|string;
    @Input() insertFirst                 ! : HTMLElement|string;
    @Input() keyMap                      ! : Record<string, KeyMapConfig>;
    @Input() margin                      ! : number|string;
    @Input() maxHeight                   ! : string|number;
    @Input() maximizeOnMobile            ! : number|string;
    @Input() maxWidth                    ! : string|number;
    @Input() minHeight                   ! : string|number;
    @Input() minWidth                    ! : string|number;
    @Input() readOnly                    ! : boolean;
    @Input() rtl                         ! : boolean;
    @Input() scrollable                  ! : Scroller|boolean|ScrollerConfig;
    @Input() span                        ! : number;
    @Input() tooltip                     ! : string|TooltipConfig|null;
    @Input() width                       ! : number|string;
    @Input() x                           ! : number;
    @Input() y                           ! : number;

    // Properties only
    @Input() parent ! : Widget;

    // Events emitters
    /**
     * Fires before an object is destroyed.
     * @param {object} event Event object
     * @param {Core.Base} event.source The Object that is being destroyed.
     */
    @Output() onBeforeDestroy: any = new EventEmitter<((event: { source: Base }) => void)|string>();
    /**
     * Triggered before a widget is hidden. Return `false` to prevent the action.
     * @param {object} event Event object
     * @param {Core.widget.Widget} event.source The widget being hidden.
     */
    @Output() onBeforeHide: any = new EventEmitter<((event: { source: Widget }) => Promise<boolean>|boolean|void)|string>();
    /**
     * Triggered before a widget is shown. Return `false` to prevent the action.
     * @param {object} event Event object
     * @param {Core.widget.Widget,any} event.source The widget being shown
     */
    @Output() onBeforeShow: any = new EventEmitter<((event: { source: Widget|any }) => Promise<boolean>|boolean|void)|string>();
    /**
     * Fires when any other event is fired from the object.
     * [More...](https://bryntum.com/products/calendar/docs/api/Core/widget/Splitter#event-catchAll)
     * @param {object} event Event object
     * @param {{[key: string]: any, type: string}} event.event The Object that contains event details
     * @param {string} event.event.type The type of the event which is caught by the listener
     */
    @Output() onCatchAll: any = new EventEmitter<((event: {[key: string]: any, type: string}) => void)|string>();
    /**
     * Fires when an object is destroyed.
     * @param {object} event Event object
     * @param {Core.Base} event.source The Object that is being destroyed.
     */
    @Output() onDestroy: any = new EventEmitter<((event: { source: Base }) => void)|string>();
    /**
     * Fired while dragging
     * @param {object} event Event object
     * @param {Core.widget.Splitter} event.source The Splitter
     * @param {MouseEvent,TouchEvent} event.event The DOM event
     */
    @Output() onDrag: any = new EventEmitter<((event: { source: Splitter, event: MouseEvent|TouchEvent }) => void)|string>();
    /**
     * Fired when a drag starts
     * @param {object} event Event object
     * @param {Core.widget.Splitter} event.source The Splitter
     * @param {MouseEvent,TouchEvent} event.event The DOM event
     */
    @Output() onDragStart: any = new EventEmitter<((event: { source: Splitter, event: MouseEvent|TouchEvent }) => void)|string>();
    /**
     * Fired after a drop
     * @param {object} event Event object
     * @param {Core.widget.Splitter} event.source The Splitter
     * @param {MouseEvent,TouchEvent} event.event The DOM event
     */
    @Output() onDrop: any = new EventEmitter<((event: { source: Splitter, event: MouseEvent|TouchEvent }) => void)|string>();
    /**
     * Triggered when a widget's [element](https://bryntum.com/products/calendar/docs/api/Core/widget/Widget#property-element) is available.
     * @param {object} event Event object
     * @param {HTMLElement} event.element The Widget's element.
     */
    @Output() onElementCreated: any = new EventEmitter<((event: { element: HTMLElement }) => void)|string>();
    /**
     * Fired when focus enters this Widget.
     * @param {object} event Event object
     * @param {Core.widget.Widget} event.source This Widget
     * @param {HTMLElement} event.fromElement The element which lost focus.
     * @param {HTMLElement} event.toElement The element which gained focus.
     * @param {Core.widget.Widget} event.fromWidget The widget which lost focus.
     * @param {Core.widget.Widget} event.toWidget The widget which gained focus.
     * @param {boolean} event.backwards `true` if the `toElement` is before the `fromElement` in document order.
     */
    @Output() onFocusIn: any = new EventEmitter<((event: { source: Widget, fromElement: HTMLElement, toElement: HTMLElement, fromWidget: Widget, toWidget: Widget, backwards: boolean }) => void)|string>();
    /**
     * Fired when focus exits this Widget's ownership tree. This is different from a `blur` event.
     * focus moving from within this Widget's ownership tree, even if there are floating widgets
     * will not trigger this event. This is when focus exits this widget completely.
     * @param {object} event Event object
     * @param {Core.widget.Widget} event.source This Widget
     * @param {HTMLElement} event.fromElement The element which lost focus.
     * @param {HTMLElement} event.toElement The element which gained focus.
     * @param {Core.widget.Widget} event.fromWidget The widget which lost focus.
     * @param {Core.widget.Widget} event.toWidget The widget which gained focus.
     * @param {boolean} event.backwards `true` if the `toElement` is before the `fromElement` in document order.
     */
    @Output() onFocusOut: any = new EventEmitter<((event: { source: Widget, fromElement: HTMLElement, toElement: HTMLElement, fromWidget: Widget, toWidget: Widget, backwards: boolean }) => void)|string>();
    /**
     * Triggered after a widget was hidden
     * @param {object} event Event object
     * @param {Core.widget.Widget} event.source The widget
     */
    @Output() onHide: any = new EventEmitter<((event: { source: Widget }) => void)|string>();
    /**
     * Triggered when a widget which had been in a non-visible state for any reason
     * achieves visibility.
     * [More...](https://bryntum.com/products/calendar/docs/api/Core/widget/Splitter#event-paint)
     * @param {object} event Event object
     * @param {Core.widget.Widget} event.source The widget being painted.
     * @param {boolean} event.firstPaint `true` if this is the first paint.
     */
    @Output() onPaint: any = new EventEmitter<((event: { source: Widget, firstPaint: boolean }) => void)|string>();
    /**
     * Fired when a Widget's read only state is toggled
     * @param {object} event Event object
     * @param {boolean} event.readOnly Read only or not
     */
    @Output() onReadOnly: any = new EventEmitter<((event: { readOnly: boolean }) => void)|string>();
    /**
     * This event is fired after a widget's elements have been synchronized due to a direct or indirect call
     * to [recompose](https://bryntum.com/products/calendar/docs/api/Core/widget/Widget#function-recompose), if this results in some change to the widget's rendered DOM elements.
     */
    @Output() onRecompose: any = new EventEmitter<(() => void)|string>();
    /**
     * Fired when the encapsulating element of a Widget resizes *only when [monitorResize](https://bryntum.com/products/calendar/docs/api/Core/widget/Widget#config-monitorResize) is `true`*.
     * @param {object} event Event object
     * @param {Core.widget.Widget} event.source This Widget
     * @param {number} event.width The new width
     * @param {number} event.height The new height
     * @param {number} event.oldWidth The old width
     * @param {number} event.oldHeight The old height
     */
    @Output() onResize: any = new EventEmitter<((event: { source: Widget, width: number, height: number, oldWidth: number, oldHeight: number }) => void)|string>();
    /**
     * Triggered after a widget is shown.
     * @param {object} event Event object
     * @param {Core.widget.Widget} event.source The widget
     */
    @Output() onShow: any = new EventEmitter<((event: { source: Widget }) => void)|string>();

    /**
     * Create and append the underlying widget
     */
    ngOnInit(): void {
        const
            me = this,
            {
                elementRef,
                bryntumConfig
            } = me,
            {
                instanceClass,
                instanceName,
                bryntumConfigs,
                bryntumEvents
            } = BryntumSplitterComponent;

        bryntumConfigs.filter(prop => prop in this).forEach(prop => {
            // @ts-ignore
            WrapperHelper.applyPropValue(bryntumConfig, prop, this[prop]);
            if (['features', 'config'].includes(prop)) {
                WrapperHelper.devWarningConfigProp(instanceName, prop);
            }
        });
        // @ts-ignore
        bryntumEvents.filter(event => this[event] && this[event].observers.length > 0).forEach(event => {
            const
                uncapitalize = (str: string) => str.charAt(0).toLowerCase() + str.slice(1),
                eventName = (str: string) => uncapitalize(str.slice(2));

            // @ts-ignore
            bryntumConfig.listeners[eventName(event)] = e => {
                // @ts-ignore
                me[event].emit(e);
                // EventEmitter does not return values in the normal way, work around it by setting `returnValue` flag
                // in Angular listeners
                return e.returnValue;
            };
        });

        // If component has no container specified in config then use adopt to Wrapper's element
        const
            containerParam = [
                'adopt',
                'appendTo',
                'insertAfter',
                'insertBefore'
                // @ts-ignore
            ].find(prop => bryntumConfig[prop]);
        if (!containerParam) {
            if (instanceName === 'Button' || elementRef.nativeElement.getRootNode() instanceof ShadowRoot) {
                // Button should always be <a> or <button> inside owner element
                bryntumConfig.appendTo = elementRef.nativeElement;
            }
            else {
                bryntumConfig.adopt = elementRef.nativeElement;
            }
        }
        else {
            WrapperHelper.devWarningContainer(instanceName, containerParam);
        }

        // In shadow DOM (e.g. Angular ViewEncapsulation.ShadowDom), theme CSS from document.head
        // does not cascade into the shadow root. Inject a matching <link> so Bryntum's CSS check
        // finds the theme. The @font-face rules from component styles are also extracted to
        // document scope so document.fonts detects them (shadow-root @font-face is not reliably
        // included in document.fonts across all browsers).
        const shadowRoot = elementRef.nativeElement.getRootNode();
        if (shadowRoot instanceof ShadowRoot) {
            initThemeInShadowRoots();
            BryntumSplitterComponent.ensureFontsInDocument(shadowRoot);
        }

        // @ts-ignore
        me.instance = instanceName === 'Widget' ? Widget.create(bryntumConfig) : new instanceClass(bryntumConfig);

    }

    /**
     * Extracts all @font-face declarations from a shadow root's stylesheets and adds them to
     * document.head as a single <style> element. This is needed because @font-face rules inside
     * a shadow root are not reliably included in document.fonts across all browsers, causing
     * Bryntum's CSS compatibility check to incorrectly report missing fonts.
     * Safe to call multiple times — the extraction runs only once per page.
     */
    private static ensureFontsInDocument(shadowRoot: ShadowRoot): void {
        if (document.querySelector('#b-shadow-root-fonts')) {
            return;
        }

        const fontFaceRules: string[] = [];

        const extractFromSheet = (sheet: CSSStyleSheet): void => {
            try {
                const rules = sheet.cssRules;
                for (let i = 0; i < rules.length; i++) {
                    if (rules[i].type === CSSRule.FONT_FACE_RULE) {
                        fontFaceRules.push(rules[i].cssText);
                    }
                }
            }
            catch (_e) {
                // Cross-origin access may throw; silently skip
            }
        };

        // adoptedStyleSheets (Angular 14+ / modern browsers)
        const adoptedSheets: CSSStyleSheet[] = (shadowRoot as any).adoptedStyleSheets ?? [];
        adoptedSheets.forEach(sheet => extractFromSheet(sheet));

        // <style> elements (older Angular or fallback)
        shadowRoot.querySelectorAll('style').forEach(el => {
            if (el.sheet) {
                extractFromSheet(el.sheet);
            }
        });

        if (fontFaceRules.length > 0) {
            const style = document.createElement('style');
            style.id = 'b-shadow-root-fonts';
            style.textContent = fontFaceRules.join('\n');
            document.head.appendChild(style);
        }
    }

    /**
     * Watch for changes
     * @param changes
     */
    ngOnChanges(changes: SimpleChanges): void {
        const
            { instance } = this,
            { instanceName } = BryntumSplitterComponent;
        if (!instance) {
            return;
        }
        // Iterate over all changes
        Object.entries(changes).forEach(([prop, change]) => {
            const
                newValue = (change as SimpleChange).currentValue,
                { instance } = this,
                { bryntumConfigsOnly, bryntumProps } = BryntumSplitterComponent;
            if (bryntumProps.includes(prop)) {
                WrapperHelper.applyPropValue(instance, prop, newValue, false);
                if (bryntumConfigsOnly.includes(prop)) {
                    WrapperHelper.devWarningUpdateProp(instanceName, prop);
                }
            }
        });
    }

    /**
     * Destroy the component
     */
    ngOnDestroy(): void {
        // @ts-ignore
        if (this.instance && this.instance.destroy) {
            this.instance.destroy();
        }
    }
}
