// Type definitions for Gridstack 0.5
// Project: http://gridstack.github.io/gridstack.js/
// Definitions by: Pascal Senn <https://github.com/PascalSenn>
//                 Ricky Blankenaufulland <https://github.com/ZoolWay>
//                 Sl1MBoy <https://github.com/Sl1MBoy>
//                 John Archer <https://github.com/JohnArcher>
//                 Alain Dumesny <https://github.com/adumesny>
// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
// TypeScript Version: 2.3

interface JQuery {
    gridstack(options: GridstackOptions): JQuery;
    data(key: 'gridstack'): GridStack;
}

/* Other items in https://github.com/gridstack/gridstack.js/blob/develop/doc/README.md
* Grid attributes
* Item attributes
* Events
*/

type GridStackElement = string | HTMLElement | JQuery;

interface GridStack {
    /**
    * Creates new widget and returns it.
    *
    * Widget will be always placed even if result height is more than actual grid height.
    * You need to use willItFit method before calling addWidget for additional check.
    * See also makeWidget.
    *
    * @example
    * $('.grid-stack').gridstack();
    * var grid = $('.grid-stack').data('gridstack');
    * grid.addWidget(el, 0, 0, 3, 2, true);
    *
    * @param {GridStackElement} el widget to add
    * @param {number} x widget position x (optional)
    * @param {number} y widget position y (optional)
    * @param {number} width  widget dimension width (optional)
    * @param {number} height widget dimension height (optional)
    * @param {boolean} autoPosition if true then x, y parameters will be ignored and widget will be places on the first available position (optional)
    * @param {number} minWidth minimum width allowed during resize/creation (optional)
    * @param {number} maxWidth maximum width allowed during resize/creation (optional)
    * @param {number} minHeight minimum height allowed during resize/creation (optional)
    * @param {number} maxHeight maximum height allowed during resize/creation (optional)
    * @param {number | string} id value for `data-gs-id` (optional)
    */
    addWidget(el: GridStackElement, x?: number, y?: number, width?: number, height?: number, autoPosition?: boolean,
        minWidth?: number, maxWidth?: number, minHeight?: number, maxHeight?: number, id?: number | string): JQuery;

    /**
    * Initializes batch updates. You will see no changes until commit method is called.
    */
    batchUpdate(): void;

    /**
    * Gets current cell height.
    */
    cellHeight(): number;

    /**
    * Update current cell height - see `GridstackOptions.cellHeight` for format.
    * This method rebuilds an internal CSS style sheet.
    * Note: You can expect performance issues if call this method too often.
    *
    * @param {number | string} val the cell height
    * @param {boolean} noUpdate (Optional) if true, styles will not be updated
    *
    * @example
    * grid.cellHeight(grid.cellWidth() * 1.2);
    */
    cellHeight(val: number | string, noUpdate?: boolean): void;

    /**
    * Gets current cell width.
    */
    cellWidth(): number;

    /**
    * Finishes batch updates. Updates DOM nodes. You must call it after batchUpdate.
    */
    commit(): void;

    /**
    * Destroys a grid instance.
    * @param {boolean} detachGrid if false nodes and grid will not be removed from the DOM (Optional. Default true).
    */
    destroy(detachGrid?: boolean): void;

    /**
    * Disables widgets moving/resizing. This is a shortcut for:
    * @example
    *  grid.movable('.grid-stack-item', false);
    *  grid.resizable('.grid-stack-item', false);
    */
    disable(): void;

    /**
    * Enables widgets moving/resizing. This is a shortcut for:
    * @example
    *  grid.movable('.grid-stack-item', true);
    *  grid.resizable('.grid-stack-item', true);
    */
    enable(): void;

    /**
    * Enables/disables widget moving.
    * This is a shortcut for:
    * @example
    * grid.movable(this.container.children('.' + this.opts.itemClass), doEnable);
    *
    * @param {boolean} doEnable
    * @param {boolean} includeNewWidgets will force new widgets to be draggable as per
    * doEnable`s value by changing the disableDrag grid option.
    */
    enableMove(doEnable: boolean, includeNewWidgets: boolean): void;

    /**
    * Enables/disables widget resizing
    * @param {boolean} doEnable
    * @param {boolean} includeNewWidgets will force new widgets to be draggable as per
    * doEnable`s value by changing the disableResize grid option.
    *
    * This is a shortcut for:
    * @example
    *  grid.resizable(this.container.children('.' + this.opts.itemClass), doEnable);
    */
    enableResize(doEnable: boolean, includeNewWidgets: boolean): void;

    /**
    * Get the position of the cell under a pixel on screen.
    * @param {MousePosition} position the position of the pixel to resolve in
    * absolute coordinates, as an object with top and left properties
    * @param {boolean} useOffset if true, value will be based on offset vs position (Optional. Default false).
    * Useful when grid is within `position: relative` element
    *
    * Returns an object with properties `x` and `y` i.e. the column and row in the grid.
    */
    getCellFromPixel(position: MousePosition, useOffset?: boolean): CellPosition;

    /**
    * Checks if specified area is empty.
    * @param {number} x the position x.
    * @param {number} y the position y.
    * @param {number} width the width of to check
    * @param {number} height the height of to check
    */
    isAreaEmpty(x: number, y: number, width: number, height: number): void;

    /**
    * Locks/unlocks widget.
    * @param {GridStackElement} el widget to modify.
    * @param {boolean} val if true widget will be locked.
    */
    locked(el: GridStackElement, val: boolean): void;

    /**
    * If you add elements to your gridstack container by hand, you have to tell gridstack afterwards to make them widgets.
    * If you want gridstack to add the elements for you, use addWidget instead.
    * Makes the given element a widget and returns it.
    * @param {GridStackElement} el widget to convert.
    *
    * @example
    * $('.grid-stack').gridstack();
    * $('.grid-stack').append('<div id="gsi-1" data-gs-x="0" data-gs-y="0" data-gs-width="3" data-gs-height="2"
    *                     data-gs-auto-position="1"></div>')
    * var grid = $('.grid-stack').data('gridstack');
    * grid.makeWidget('gsi-1');
    */
    makeWidget(el: GridStackElement): JQuery;

    /**
    * Set the maxWidth for a widget.
    * @param {GridStackElement} el widget to modify.
    * @param {number} val A numeric value of the number of columns
    */
    maxWidth(el: GridStackElement, val: number): void;

    /**
    * Set the minWidth for a widget.
    * @param {GridStackElement} el widget to modify.
    * @param {number} val A numeric value of the number of columns
    */
    minWidth(el: GridStackElement, val: number): void;

    /**
    * Set the maxHeight for a widget.
    * @param {GridStackElement} el widget to modify.
    * @param {number} val A numeric value of the number of rows
    */
    maxHeight(el: GridStackElement, val: number): void;

    /**
    * Set the minHeight for a widget.
    * @param {GridStackElement} el widget to modify.
    * @param {number} val A numeric value of the number of rows
    */
    minHeight(el: GridStackElement, val: number): void;

    /**
    * Enables/Disables moving.
    * @param {GridStackElement} el widget to modify.
    * @param {number} val if true widget will be draggable.
    */
    movable(el: GridStackElement, val: boolean): void;

    /**
    * Changes widget position
    * @param {GridStackElement} el  widget to modify
    * @param {number} x new position x. If value is null or undefined it will be ignored.
    * @param {number} y new position y. If value is null or undefined it will be ignored.
    */
    move(el: GridStackElement, x: number, y: number): void;

    /**
    * Removes widget from the grid.
    * @param {GridStackElement} el  widget to modify
    * @param {boolean} detachNode if false DOM node won't be removed from the tree (Default? true).
    */
    removeWidget(el: GridStackElement, detachNode?: boolean): void;

    /**
    * Removes all widgets from the grid.
    * @param {boolean} detachNode if false DOM nodes won't be removed from the tree (Default? true).
    */
    removeAll(detachNode?: boolean): void;

    /**
    * Changes widget size
    * @param {GridStackElement} el  widget to modify
    * @param {number} width new dimensions width. If value is null or undefined it will be ignored.
    * @param {number} height  new dimensions height. If value is null or undefined it will be ignored.
    */
    resize(el: GridStackElement, width: number, height: number): void;

    /**
    * Enables/Disables resizing.
    * @param {GridStackElement} el  widget to modify
    * @param {boolean} val  if true widget will be resizable.
    */
    resizable(el: GridStackElement, val: boolean): void;

    /**
    * Toggle the grid animation state.  Toggles the `grid-stack-animate` class.
    * @param {boolean} doAnimate if true the grid will animate.
    */
    setAnimation(doAnimate: boolean): void;

    /**
    * (Experimental) Modify number of columns in the grid. Will attempt to update existing widgets
    * to conform to new number of columns. Requires `gridstack-extra.css` or `gridstack-extra.min.css`.
    * @param {number} gridWidth - Integer between 1 and 12.
    * @param {boolean} doNotPropagate if true existing widgets will not be updated.
    */
    setGridWidth(gridWidth: number, doNotPropagate: boolean): void;

    /**
    * Toggle the grid static state. Also toggle the grid-stack-static class.
    * @param {boolean} staticValue if true the grid become static.
    */
    setStatic(staticValue: boolean): void;

    /**
    * Updates widget position/size.
    * @param {GridStackElement} el widget to modify
    * @param {number} x new position x. If value is null or undefined it will be ignored.
    * @param {number} y new position y. If value is null or undefined it will be ignored.
    * @param {number} width new dimensions width. If value is null or undefined it will be ignored.
    * @param {number} height  new dimensions height. If value is null or undefined it will be ignored.
    */
    update(el: GridStackElement, x: number, y: number, width: number, height: number): void;

    /**
    * returns current vertical margin value
    */
    verticalMargin(): number;

    /**
    * Updates the vertical margin - see `GridstackOptions.verticalMargin` for format options.
    *
    * @param {number | string} value new vertical margin value
    * @param {boolean} noUpdate (optional) if true, styles will not be updated
    */
    verticalMargin(value: number | string, noUpdate?: boolean): void;

    /**
    * Returns true if the height of the grid will be less the vertical
    * constraint. Always returns true if grid doesn't have height constraint.
    * @param {number} x new position x. If value is null or undefined it will be ignored.
    * @param {number} y new position y. If value is null or undefined it will be ignored.
    * @param {number} width new dimensions width. If value is null or undefined it will be ignored.
    * @param {number} height new dimensions height. If value is null or undefined it will be ignored.
    * @param {boolean} autoPosition if true then x, y parameters will be ignored and widget
    * will be places on the first available position
    *
    * @example
    * if (grid.willItFit(newNode.x, newNode.y, newNode.width, newNode.height, true)) {
    *   grid.addWidget(newNode.el, newNode.x, newNode.y, newNode.width, newNode.height, true);
    * } else {
    *   alert('Not enough free space to place the widget');
    * }
    */
    willItFit(x: number, y: number, width: number, height: number, autoPosition: boolean): boolean;
}

/**
 * Defines the coordinates of an object
 */
interface MousePosition {
    top: number;
    left: number;
}

/**
 *   Defines the position of a cell inside the grid
 */
interface CellPosition {
    x: number;
    y: number;
}

declare namespace GridStackUI {
    interface Utils {
        /**
        * Sorts array of nodes
        * @param nodes array to sort
        * @param dir 1 for asc, -1 for desc (optional)
        * @param width width of the grid. If undefined the width will be calculated automatically (optional).
        **/
        sort(nodes: HTMLElement[], dir?: number, width?: number): void;
    }
}

/**
 * Gridstack Options
 * Defines the options for a Gridstack
 */
interface GridstackOptions {
    /**
    * if true of jquery selector the grid will accept widgets dragged from other grids or from
    * outside (default: false) See [example](http://gridstack.github.io/gridstack.js/demo/two.html)
    */
    acceptWidgets?: boolean | string | ((i: number, element: Element) => boolean | string);

    /**
    * if true the resizing handles are shown even if the user is not hovering over the widget (default?: false)
    */
    alwaysShowResizeHandle?: boolean;

    /**
    * turns animation on (default?: true)
    */
    animate?: boolean;

    /**
    * if false gridstack will not initialize existing items (default?: true)
    */
    auto?: boolean;

    /**
    * one cell height (default?: 60). Can be:
    *  an integer (px)
    *  a string (ex: '10em', '100px', '10rem')
    *  0 or null, in which case the library will not generate styles for rows. Everything must be defined in CSS files.
    *  'auto' - height will be calculated from cell width.
    */
    cellHeight?: number | string;

    /**
    * (internal?) unit for cellHeight (default? 'px')
    */
    cellHeightUnit?: string;

    /** class that implement drag'n'drop functionality for gridstack. If false grid will be static.
    * (default?: null - first available plugin will be used)
    */
    ddPlugin?: boolean | null | any;

    /** disallows dragging of widgets (default?: false) */
    disableDrag?: boolean;

    /** disallows resizing of widgets (default?: false). */
    disableResize?: boolean;

    /**
    * allows to override jQuery UI draggable options. (default?: { handle?: '.grid-stack-item-content', scroll?: true, appendTo?: 'body' })
    */
    draggable?: {};

    /**
    * draggable handle selector (default?: '.grid-stack-item-content')
    */
    handle?: string;

    /** draggable handle class (e.g. 'grid-stack-item-content'). If set 'handle' is ignored (default?: null) */
    handleClass?: string;

    /**
    * maximum rows amount. Default? is 0 which means no maximum rows
    */
    height?: number;

    /**
    * enable floating widgets (default?: false) See example (http://gridstack.github.io/gridstack.js/demo/float.html)
    */
    float?: boolean;

    /**
    * widget class (default?: 'grid-stack-item')
    */
    itemClass?: string;

    /**
    * minimal width. If window width is less, grid will be shown in one - column mode (default?: 768)
    */
    minWidth?: number;

    /** disables the onColumnMode when the window width is less than minWidth (default?: false) */
    disableOneColumnMode?: boolean;

    /**
    * class set on grid when in one column mode (default?: 'grid-stack-one-column-mode')
    */
    oneColumnModeClass?: string;

    /**
    * class for placeholder (default?: 'grid-stack-placeholder')
    */
    placeholderClass?: string;

    /** placeholder default content (default?: '') */
    placeholderText?: string;

    /**
    * allows to override jQuery UI resizable options. (default?: { autoHide?: true, handles?: 'se' })
    */
    resizable?: {};

    /**
    * if true widgets could be removed by dragging outside of the grid. It could also be a jQuery selector string,
    * in this case widgets will be removed by dropping them there (default?: false)
    * See example (http://gridstack.github.io/gridstack.js/demo/two.html)
    */
    removable?: boolean | string;

    /**
    * time in milliseconds before widget is being removed while dragging outside of the grid. (default?: 2000)
    */
    removeTimeout?: number;

    /**
    * if true turns grid to RTL. Possible values are true, false, 'auto' (default?: 'auto')
    * See [example](http://gridstack.github.io/gridstack.js/demo/rtl.html)
    */
    rtl?: boolean | 'auto';

    /**
    * makes grid static (default?: false).If true widgets are not movable/resizable.
    * You don't even need jQueryUI draggable/resizable. A CSS class
    * 'grid-stack-static' is also added to the container.
    */
    staticGrid?: boolean;

    /**
    * vertical gap size (default?: 20). Can be:
    *  an integer (px)
    *  a string (ex: '2em', '20px', '2rem')
    */
    verticalMargin?: number | string;

    /**
    * (internal?) unit for verticalMargin (default? 'px')
    */
    verticalMarginUnit?: string;

    /**
    * number of columns (default?: 12)
    */
    width?: number;
}