import { settings, browser, gStyle, isBatchMode, isNodeJs, isObject, isFunc, isStr, source_dir, atob_func, btoa_func } from '../core.mjs';
import { select as d3_select, pointer as d3_pointer, drag as d3_drag, color as d3_color } from '../d3.mjs';
import { BasePainter } from '../base/BasePainter.mjs';
import { resize } from '../base/ObjectPainter.mjs';
import { getRootColors } from '../base/colors.mjs';

/** @summary Display progress message in the left bottom corner.
  * @desc Previous message will be overwritten
  * if no argument specified, any shown messages will be removed
  * @param {string} msg - message to display
  * @param {number} tmout - optional timeout in milliseconds, after message will disappear
  * @private */
function showProgress(msg, tmout) {
   if (isBatchMode() || (typeof document === 'undefined'))
      return;
   const id = 'jsroot_progressbox';
   let box = d3_select('#' + id);

   if (!settings.ProgressBox)
      return box.remove();

   if ((arguments.length === 0) || !msg) {
      if ((tmout !== -1) || (!box.empty() && box.property('with_timeout'))) box.remove();
      return;
   }

   if (box.empty()) {
      box = d3_select(document.body)
              .append('div').attr('id', id)
              .attr('style', 'position: fixed; min-width: 100px; height: auto; overflow: visible; z-index: 101; border: 1px solid #999; background: #F8F8F8; left: 10px; bottom: 10px;');
      box.append('p');
   }

   box.property('with_timeout', false);

   if (isStr(msg))
      box.select('p').html(msg);
    else {
      box.html('');
      box.node().appendChild(msg);
   }

   box.select('p').attr('style', 'font-size: 10px; margin-left: 10px; margin-right: 10px; margin-top: 3px; margin-bottom: 3px');

   if (Number.isFinite(tmout) && (tmout > 0)) {
      box.property('with_timeout', true);
      setTimeout(() => showProgress('', -1), tmout);
   }
}

/** @summary Tries to close current browser tab
  * @desc Many browsers do not allow simple window.close() call,
  * therefore try several workarounds
  * @private */
function closeCurrentWindow() {
   if (!window) return;
   window.close();
   window.open('', '_self').close();
}

/** @summary Tries to open ui5
  * @private */
function tryOpenOpenUI(sources, args) {
   if (!sources || (sources.length === 0)) {
      if (isFunc(args.rejectFunc)) {
         args.rejectFunc(Error('openui5 was not possible to load'));
         args.rejectFunc = null;
      }
      return;
   }

   // where to take openui5 sources
   let src = sources.shift();

   if ((src.indexOf('roothandler') === 0) && (src.indexOf('://') < 0))
      src = src.replace(/:\//g, '://');

   const element = document.createElement('script');
   element.setAttribute('type', 'text/javascript');
   element.setAttribute('id', 'sap-ui-bootstrap');
   // use nojQuery while we are already load jquery and jquery-ui, later one can use directly sap-ui-core.js

   // this is location of openui5 scripts when working with THttpServer or when scripts are installed inside JSROOT
   element.setAttribute('src', src + (args.ui5dbg ? 'resources/sap-ui-core-dbg.js' : 'resources/sap-ui-core.js')); // latest openui5 version

   element.setAttribute('data-sap-ui-libs', args.openui5libs ?? 'sap.m, sap.ui.layout, sap.ui.unified, sap.ui.commons');

   element.setAttribute('data-sap-ui-theme', args.openui5theme || 'sap_belize');
   element.setAttribute('data-sap-ui-compatVersion', 'edge');
   element.setAttribute('data-sap-ui-async', 'true');
   // element.setAttribute('data-sap-ui-bindingSyntax', 'complex');

   element.setAttribute('data-sap-ui-preload', 'async'); // '' to disable Component-preload.js

   element.setAttribute('data-sap-ui-evt-oninit', 'completeUI5Loading()');

   element.onerror = function() {
      // remove failed element
      element.parentNode.removeChild(element);
      // and try next
      tryOpenOpenUI(sources, args);
   };

   element.onload = function() {
      console.log(`Load openui5 from ${src}`);
   };

   document.head.appendChild(element);
}


/** @summary load openui5
  * @return {Promise} for loading ready
  * @private */
async function loadOpenui5(args) {
   // very simple - openui5 was loaded before and will be used as is
   if (typeof globalThis.sap === 'object')
      return globalThis.sap;

   if (!args) args = {};

   let rootui5sys = source_dir.replace(/jsrootsys/g, 'rootui5sys');

   if (rootui5sys === source_dir) {
      // if jsrootsys location not detected, try to guess it
      if (window.location.port && (window.location.pathname.indexOf('/win') >= 0) && (!args.openui5src || args.openui5src === 'nojsroot' || args.openui5src === 'jsroot'))
         rootui5sys = window.location.origin + window.location.pathname + '../rootui5sys/';
      else
         rootui5sys = undefined;
   }

   const openui5_sources = [];
   let openui5_dflt = 'https://openui5.hana.ondemand.com/1.98.0/',
       openui5_root = rootui5sys ? rootui5sys + 'distribution/' : '';

   if (isStr(args.openui5src)) {
      switch (args.openui5src) {
         case 'nodefault': openui5_dflt = ''; break;
         case 'default': openui5_sources.push(openui5_dflt); openui5_dflt = ''; break;
         case 'nojsroot': /* openui5_root = ''; */ break;
         case 'jsroot': openui5_sources.push(openui5_root); openui5_root = ''; break;
         default: openui5_sources.push(args.openui5src); break;
      }
   } else if (args.ui5dbg)
      openui5_root = ''; // exclude ROOT version in debug mode

   if (openui5_root && (openui5_sources.indexOf(openui5_root) < 0))
      openui5_sources.push(openui5_root);
   if (openui5_dflt && (openui5_sources.indexOf(openui5_dflt) < 0))
      openui5_sources.push(openui5_dflt);

   return new Promise((resolve, reject) => {
      args.resolveFunc = resolve;
      args.rejectFunc = reject;

      globalThis.completeUI5Loading = function() {
         globalThis.sap.ui.loader.config({
            paths: {
               jsroot: source_dir,
               rootui5: rootui5sys
            }
         });

         if (args.resolveFunc) {
            args.resolveFunc(globalThis.sap);
            args.resolveFunc = null;
         }
      };

      tryOpenOpenUI(openui5_sources, args);
   });
}

/* eslint-disable key-spacing */
/* eslint-disable comma-spacing */
/* eslint-disable object-curly-spacing */

// some icons taken from http://uxrepo.com/
const ToolbarIcons = {
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   disk: { path: 'M384,0H128H32C14.336,0,0,14.336,0,32v448c0,17.656,14.336,32,32,32h448c17.656,0,32-14.344,32-32V96L416,0H384z M352,160   V32h32v128c0,17.664-14.344,32-32,32H160c-17.664,0-32-14.336-32-32V32h128v128H352z M96,288c0-17.656,14.336-32,32-32h256   c17.656,0,32,14.344,32,32v192H96V288z' },
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   arrow_right: { path: 'M30.796,226.318h377.533L294.938,339.682c-11.899,11.906-11.899,31.184,0,43.084c11.887,11.899,31.19,11.893,43.077,0  l165.393-165.386c5.725-5.712,8.924-13.453,8.924-21.539c0-8.092-3.213-15.84-8.924-21.551L338.016,8.925  C332.065,2.975,324.278,0,316.478,0c-7.802,0-15.603,2.968-21.539,8.918c-11.899,11.906-11.899,31.184,0,43.084l113.391,113.384  H30.796c-16.822,0-30.463,13.645-30.463,30.463C0.333,212.674,13.974,226.318,30.796,226.318z' },
   arrow_up: { path: 'M295.505,629.446V135.957l148.193,148.206c15.555,15.559,40.753,15.559,56.308,0c15.555-15.538,15.546-40.767,0-56.304  L283.83,11.662C276.372,4.204,266.236,0,255.68,0c-10.568,0-20.705,4.204-28.172,11.662L11.333,227.859  c-7.777,7.777-11.666,17.965-11.666,28.158c0,10.192,3.88,20.385,11.657,28.158c15.563,15.555,40.762,15.555,56.317,0  l148.201-148.219v493.489c0,21.993,17.837,39.82,39.82,39.82C277.669,669.267,295.505,651.439,295.505,629.446z' },
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   vrgoggles: { size: '245.82 141.73', path: 'M175.56,111.37c-22.52,0-40.77-18.84-40.77-42.07S153,27.24,175.56,27.24s40.77,18.84,40.77,42.07S198.08,111.37,175.56,111.37ZM26.84,69.31c0-23.23,18.25-42.07,40.77-42.07s40.77,18.84,40.77,42.07-18.26,42.07-40.77,42.07S26.84,92.54,26.84,69.31ZM27.27,0C11.54,0,0,12.34,0,28.58V110.9c0,16.24,11.54,30.83,27.27,30.83H99.57c2.17,0,4.19-1.83,5.4-3.7L116.47,118a8,8,0,0,1,12.52-.18l11.51,20.34c1.2,1.86,3.22,3.61,5.39,3.61h72.29c15.74,0,27.63-14.6,27.63-30.83V28.58C245.82,12.34,233.93,0,218.19,0H27.27Z' },
   th2colorz: { recs: [{ x: 128, y: 486, w: 256, h: 26, f: 'rgb(38,62,168)' }, { y: 461, f: 'rgb(22,82,205)' }, { y: 435, f: 'rgb(16,100,220)' }, { y: 410, f: 'rgb(18,114,217)' }, { y: 384, f: 'rgb(20,129,214)' }, { y: 358, f: 'rgb(14,143,209)' }, { y: 333, f: 'rgb(9,157,204)' }, { y: 307, f: 'rgb(13,167,195)' }, { y: 282, f: 'rgb(30,175,179)' }, { y: 256, f: 'rgb(46,183,164)' }, { y: 230, f: 'rgb(82,186,146)' }, { y: 205, f: 'rgb(116,189,129)' }, { y: 179, f: 'rgb(149,190,113)' }, { y: 154, f: 'rgb(179,189,101)' }, { y: 128, f: 'rgb(209,187,89)' }, { y: 102, f: 'rgb(226,192,75)' }, { y: 77, f: 'rgb(244,198,59)' }, { y: 51, f: 'rgb(253,210,43)' }, { y: 26, f: 'rgb(251,230,29)' }, { y: 0, f: 'rgb(249,249,15)' }] },
   th2color: { recs: [{x:0,y:256,w:13,h:39,f:'rgb(38,62,168)'},{x:13,y:371,w:39,h:39},{y:294,h:39},{y:256,h:39},{y:218,h:39},{x:51,y:410,w:39,h:39},{y:371,h:39},{y:333,h:39},{y:294},{y:256,h:39},{y:218,h:39},{y:179,h:39},{y:141,h:39},{y:102,h:39},{y:64},{x:90,y:448,w:39,h:39},{y:410},{y:371,h:39},{y:333,h:39,f:'rgb(22,82,205)'},{y:294},{y:256,h:39,f:'rgb(16,100,220)'},{y:218,h:39},{y:179,h:39,f:'rgb(22,82,205)'},{y:141,h:39},{y:102,h:39,f:'rgb(38,62,168)'},{y:64},{y:0,h:27},{x:128,y:448,w:39,h:39},{y:410},{y:371,h:39},{y:333,h:39,f:'rgb(22,82,205)'},{y:294,f:'rgb(20,129,214)'},{y:256,h:39,f:'rgb(9,157,204)'},{y:218,h:39,f:'rgb(14,143,209)'},{y:179,h:39,f:'rgb(20,129,214)'},{y:141,h:39,f:'rgb(16,100,220)'},{y:102,h:39,f:'rgb(22,82,205)'},{y:64,f:'rgb(38,62,168)'},{y:26,h:39},{y:0,h:27},{x:166,y:486,h:14},{y:448,h:39},{y:410},{y:371,h:39,f:'rgb(22,82,205)'},{y:333,h:39,f:'rgb(20,129,214)'},{y:294,f:'rgb(82,186,146)'},{y:256,h:39,f:'rgb(179,189,101)'},{y:218,h:39,f:'rgb(116,189,129)'},{y:179,h:39,f:'rgb(82,186,146)'},{y:141,h:39,f:'rgb(14,143,209)'},{y:102,h:39,f:'rgb(16,100,220)'},{y:64,f:'rgb(38,62,168)'},{y:26,h:39},{x:205,y:486,w:39,h:14},{y:448,h:39},{y:410},{y:371,h:39,f:'rgb(16,100,220)'},{y:333,h:39,f:'rgb(9,157,204)'},{y:294,f:'rgb(149,190,113)'},{y:256,h:39,f:'rgb(244,198,59)'},{y:218,h:39},{y:179,h:39,f:'rgb(226,192,75)'},{y:141,h:39,f:'rgb(13,167,195)'},{y:102,h:39,f:'rgb(18,114,217)'},{y:64,f:'rgb(22,82,205)'},{y:26,h:39,f:'rgb(38,62,168)'},{x:243,y:448,w:39,h:39},{y:410},{y:371,h:39,f:'rgb(18,114,217)'},{y:333,h:39,f:'rgb(30,175,179)'},{y:294,f:'rgb(209,187,89)'},{y:256,h:39,f:'rgb(251,230,29)'},{y:218,h:39,f:'rgb(249,249,15)'},{y:179,h:39,f:'rgb(226,192,75)'},{y:141,h:39,f:'rgb(30,175,179)'},{y:102,h:39,f:'rgb(18,114,217)'},{y:64,f:'rgb(38,62,168)'},{y:26,h:39},{x:282,y:448,h:39},{y:410},{y:371,h:39,f:'rgb(18,114,217)'},{y:333,h:39,f:'rgb(14,143,209)'},{y:294,f:'rgb(149,190,113)'},{y:256,h:39,f:'rgb(226,192,75)'},{y:218,h:39,f:'rgb(244,198,59)'},{y:179,h:39,f:'rgb(149,190,113)'},{y:141,h:39,f:'rgb(9,157,204)'},{y:102,h:39,f:'rgb(18,114,217)'},{y:64,f:'rgb(38,62,168)'},{y:26,h:39},{x:320,y:448,w:39,h:39},{y:410},{y:371,h:39,f:'rgb(22,82,205)'},{y:333,h:39,f:'rgb(20,129,214)'},{y:294,f:'rgb(46,183,164)'},{y:256,h:39},{y:218,h:39,f:'rgb(82,186,146)'},{y:179,h:39,f:'rgb(9,157,204)'},{y:141,h:39,f:'rgb(20,129,214)'},{y:102,h:39,f:'rgb(16,100,220)'},{y:64,f:'rgb(38,62,168)'},{y:26,h:39},{x:358,y:448,h:39},{y:410},{y:371,h:39,f:'rgb(22,82,205)'},{y:333,h:39},{y:294,f:'rgb(16,100,220)'},{y:256,h:39,f:'rgb(20,129,214)'},{y:218,h:39,f:'rgb(14,143,209)'},{y:179,h:39,f:'rgb(18,114,217)'},{y:141,h:39,f:'rgb(22,82,205)'},{y:102,h:39,f:'rgb(38,62,168)'},{y:64},{y:26,h:39},{x:397,y:448,w:39,h:39},{y:371,h:39},{y:333,h:39},{y:294,f:'rgb(22,82,205)'},{y:256,h:39},{y:218,h:39},{y:179,h:39,f:'rgb(38,62,168)'},{y:141,h:39},{y:102,h:39},{y:64},{y:26,h:39},{x:435,y:410,h:39},{y:371,h:39},{y:333,h:39},{y:294},{y:256,h:39},{y:218,h:39},{y:179,h:39},{y:141,h:39},{y:102,h:39},{y:64},{x:474,y:256,h:39},{y:179,h:39}] },
   th2draw3d: {
      path: 'M172.768,0H51.726C23.202,0,0.002,23.194,0.002,51.712v89.918c0,28.512,23.2,51.718,51.724,51.718h121.042   c28.518,0,51.724-23.2,51.724-51.718V51.712C224.486,23.194,201.286,0,172.768,0z M177.512,141.63c0,2.611-2.124,4.745-4.75,4.745   H51.726c-2.626,0-4.751-2.134-4.751-4.745V51.712c0-2.614,2.125-4.739,4.751-4.739h121.042c2.62,0,4.75,2.125,4.75,4.739 L177.512,141.63L177.512,141.63z '+
            'M460.293,0H339.237c-28.521,0-51.721,23.194-51.721,51.712v89.918c0,28.512,23.2,51.718,51.721,51.718h121.045   c28.521,0,51.721-23.2,51.721-51.718V51.712C512.002,23.194,488.802,0,460.293,0z M465.03,141.63c0,2.611-2.122,4.745-4.748,4.745   H339.237c-2.614,0-4.747-2.128-4.747-4.745V51.712c0-2.614,2.133-4.739,4.747-4.739h121.045c2.626,0,4.748,2.125,4.748,4.739 V141.63z '+
            'M172.768,256.149H51.726c-28.524,0-51.724,23.205-51.724,51.726v89.915c0,28.504,23.2,51.715,51.724,51.715h121.042   c28.518,0,51.724-23.199,51.724-51.715v-89.915C224.486,279.354,201.286,256.149,172.768,256.149z M177.512,397.784   c0,2.615-2.124,4.736-4.75,4.736H51.726c-2.626-0.006-4.751-2.121-4.751-4.736v-89.909c0-2.626,2.125-4.753,4.751-4.753h121.042 c2.62,0,4.75,2.116,4.75,4.753L177.512,397.784L177.512,397.784z '+
            'M460.293,256.149H339.237c-28.521,0-51.721,23.199-51.721,51.726v89.915c0,28.504,23.2,51.715,51.721,51.715h121.045   c28.521,0,51.721-23.199,51.721-51.715v-89.915C512.002,279.354,488.802,256.149,460.293,256.149z M465.03,397.784   c0,2.615-2.122,4.736-4.748,4.736H339.237c-2.614,0-4.747-2.121-4.747-4.736v-89.909c0-2.626,2.121-4.753,4.747-4.753h121.045 c2.615,0,4.748,2.116,4.748,4.753V397.784z'
   },

   createSVG(group, btn, size, title, arg) {
      const use_dark = (arg === true) || (arg === false) ? arg : settings.DarkMode,
          opacity0 = (arg === 'browser') ? (browser.touches ? 0.2 : 0) : (use_dark ? 0.8 : 0.2),
          svg = group.append('svg:svg')
                     .attr('width', size + 'px')
                     .attr('height', size + 'px')
                     .attr('viewBox', '0 0 512 512')
                     .style('overflow', 'hidden')
                     .style('cursor', 'pointer')
                     .style('fill', use_dark ? 'rgba(255, 224, 160)' : 'steelblue')
                     .style('opacity', opacity0)
                     .property('opacity0', opacity0)
                     .property('opacity1', use_dark ? 1 : 0.8)
                     .on('mouseenter', function() {
                        const elem = d3_select(this);
                        elem.style('opacity', elem.property('opacity1'));
                        const func = elem.node()._mouseenter;
                        if (isFunc(func)) func();
                     })
                     .on('mouseleave', function() {
                        const elem = d3_select(this);
                        elem.style('opacity', elem.property('opacity0'));
                        const func = elem.node()._mouseleave;
                        if (isFunc(func)) func();
                     });

      if ('recs' in btn) {
         const rec = {};
         for (let n = 0; n < btn.recs.length; ++n) {
            Object.assign(rec, btn.recs[n]);
            svg.append('rect').attr('x', rec.x).attr('y', rec.y)
               .attr('width', rec.w).attr('height', rec.h)
               .style('fill', rec.f);
         }
      } else
         svg.append('svg:path').attr('d', btn.path);


      //  special rect to correctly get mouse events for whole button area
      svg.append('svg:rect').attr('x', 0).attr('y', 0).attr('width', 512).attr('height', 512)
         .style('opacity', 0).style('fill', 'none').style('pointer-events', 'visibleFill')
         .append('svg:title').text(title);

      return svg;
   }

}; // ToolbarIcons


/** @summary Register handle to react on window resize
  * @desc function used to react on browser window resize event
  * While many resize events could come in short time,
  * resize will be handled with delay after last resize event
  * @param {object|string} handle can be function or object with checkResize function or dom where painting was done
  * @param {number} [delay] - one could specify delay after which resize event will be handled
  * @protected */
function registerForResize(handle, delay) {
   if (!handle || isBatchMode() || (typeof window === 'undefined') || (typeof document === 'undefined')) return;

   let myInterval = null, myDelay = delay || 300;
   if (myDelay < 20) myDelay = 20;

   function ResizeTimer() {
      myInterval = null;

      document.body.style.cursor = 'wait';
      if (isFunc(handle))
         handle();
      else if (isFunc(handle?.checkResize))
         handle.checkResize();
      else {
         const node = new BasePainter(handle).selectDom();
         if (!node.empty()) {
            const mdi = node.property('mdi');
            if (isFunc(mdi?.checkMDIResize))
               mdi.checkMDIResize();
             else
               resize(node.node());
         }
      }
      document.body.style.cursor = 'auto';
   }

   window.addEventListener('resize', () => {
      if (myInterval !== null) clearTimeout(myInterval);
      myInterval = setTimeout(ResizeTimer, myDelay);
   });
}

/** @summary Detect mouse right button
  * @private */
function detectRightButton(event) {
   return (event?.buttons === 2) || (event?.button === 2);
}

/** @summary Add move handlers for drawn element
  * @private */
function addMoveHandler(painter, enabled = true) {
   if (!settings.MoveResize || painter.isBatchMode() || !painter.draw_g) return;

   if (!enabled) {
      if (painter.draw_g.property('assigned_move')) {
         const drag_move = d3_drag().subject(Object);
         drag_move.on('start', null).on('drag', null).on('end', null);
         painter.draw_g
               .style('cursor', null)
               .property('assigned_move', null)
               .call(drag_move);
      }
      return;
   }

   if (painter.draw_g.property('assigned_move')) return;

   const drag_move = d3_drag().subject(Object);
   let not_changed = true, move_disabled = false;

   drag_move
      .on('start', function(evnt) {
         move_disabled = this.moveEnabled ? !this.moveEnabled() : false;
         if (move_disabled) return;
         if (detectRightButton(evnt.sourceEvent)) return;
         evnt.sourceEvent.preventDefault();
         evnt.sourceEvent.stopPropagation();
         const pos = d3_pointer(evnt, this.draw_g.node());
         not_changed = true;
         if (this.moveStart)
            this.moveStart(pos[0], pos[1]);
      }.bind(painter)).on('drag', function(evnt) {
         if (move_disabled) return;
         evnt.sourceEvent.preventDefault();
         evnt.sourceEvent.stopPropagation();
         not_changed = false;
         if (this.moveDrag)
            this.moveDrag(evnt.dx, evnt.dy);
      }.bind(painter)).on('end', function(evnt) {
         if (move_disabled) return;
         evnt.sourceEvent.preventDefault();
         evnt.sourceEvent.stopPropagation();
         if (this.moveEnd)
            this.moveEnd(not_changed);

         let arg = null;
         if (not_changed) {
            // if not changed - provide click position
            const pos = d3_pointer(evnt, this.draw_g.node());
            arg = { x: pos[0], y: pos[1], dbl: false };
         }
         this.getPadPainter()?.selectObjectPainter(this, arg);
      }.bind(painter));

   painter.draw_g
          .style('cursor', 'move')
          .property('assigned_move', true)
          .call(drag_move);
}

/** @summary Inject style
  * @param {String} code - css string
  * @private */
function injectStyle(code, node, tag) {
   if (isBatchMode() || !code || (typeof document === 'undefined'))
      return true;

   const styles = (node || document).getElementsByTagName('style');
   for (let n = 0; n < styles.length; ++n) {
      if (tag && styles[n].getAttribute('tag') === tag) {
         styles[n].innerHTML = code;
         return true;
      }

      if (styles[n].innerHTML === code)
         return true;
   }

   const element = document.createElement('style');
   if (tag) element.setAttribute('tag', tag);
   element.innerHTML = code;
   (node || document.head).appendChild(element);
   return true;
}

/** @summary Select predefined style
  * @private */
function selectgStyle(name) {
   gStyle.fName = name;
   switch (name) {
      case 'Modern': Object.assign(gStyle, { fFrameBorderMode: 0, fFrameFillColor: 0,
         fCanvasBorderMode: 0, fCanvasColor: 0, fPadBorderMode: 0, fPadColor: 0, fStatColor: 0,
         fTitleAlign: 23, fTitleX: 0.5, fTitleBorderSize: 0, fTitleColor: 0, fTitleStyle: 0,
         fOptStat: 1111, fStatY: 0.935,
         fLegendBorderSize: 1, fLegendFont: 42, fLegendTextSize: 0, fLegendFillColor: 0 });
         break;
      case 'Plain': Object.assign(gStyle, { fFrameBorderMode: 0,
         fCanvasBorderMode: 0, fPadBorderMode: 0, fPadColor: 0, fCanvasColor: 0,
         fTitleColor: 0, fTitleBorderSize: 0, fStatColor: 0, fStatBorderSize: 1, fLegendBorderSize: 1 });
         break;
      case 'Bold': Object.assign(gStyle, { fCanvasColor: 10, fCanvasBorderMode: 0,
         fFrameLineWidth: 3, fFrameFillColor: 10,
         fPadColor: 10, fPadTickX: 1, fPadTickY: 1, fPadBottomMargin: 0.15, fPadLeftMargin: 0.15,
         fTitleColor: 10, fTitleTextColor: 600, fStatColor: 10 });
         break;
   }
}

/** @summary Save object as a cookie
  * @private */
function saveCookie(obj, expires, name) {
   const arg = (expires <= 0) ? '' : btoa_func(JSON.stringify(obj)),
         d = new Date();
   d.setTime((expires <= 0) ? 0 : d.getTime() + expires*24*60*60*1000);
   if (typeof document !== 'undefined')
      document.cookie = `${name}=${arg}; expires=${d.toUTCString()}; SameSite=None; Secure; path=/;`;
}

/** @summary Read cookie with specified name
  * @private */
function readCookie(name) {
   if (typeof document === 'undefined')
      return null;
   const decodedCookie = decodeURIComponent(document.cookie),
         ca = decodedCookie.split(';');
   name += '=';
   for (let i = 0; i < ca.length; i++) {
      let c = ca[i];
      while (c.charAt(0) === ' ')
        c = c.substring(1);
      if (c.indexOf(name) === 0) {
         const s = JSON.parse(atob_func(c.substring(name.length, c.length)));

         return isObject(s) ? s : null;
      }
   }
   return null;
}

/** @summary Save JSROOT settings as specified cookie parameter
  * @param {Number} expires - days when cookie will be removed by browser, negative - delete immediately
  * @param {String} name - cookie parameter name
  * @private */
function saveSettings(expires = 365, name = 'jsroot_settings') {
   saveCookie(settings, expires, name);
}

/** @summary Read JSROOT settings from specified cookie parameter
  * @param {Boolean} only_check - when true just checks if settings were stored before with provided name
  * @param {String} name - cookie parameter name
  * @private */
function readSettings(only_check = false, name = 'jsroot_settings') {
   const s = readCookie(name);
   if (!s) return false;
   if (!only_check)
      Object.assign(settings, s);
   return true;
}

/** @summary Save JSROOT gStyle object as specified cookie parameter
  * @param {Number} expires - days when cookie will be removed by browser, negative - delete immediately
  * @param {String} name - cookie parameter name
  * @private */
function saveStyle(expires = 365, name = 'jsroot_style') {
   saveCookie(gStyle, expires, name);
}

/** @summary Read JSROOT gStyle object specified cookie parameter
  * @param {Boolean} only_check - when true just checks if settings were stored before with provided name
  * @param {String} name - cookie parameter name
  * @private */
function readStyle(only_check = false, name = 'jsroot_style') {
   const s = readCookie(name);
   if (!s) return false;
   if (!only_check)
      Object.assign(gStyle, s);
   return true;
}

let _saveFileFunc = null;

/** @summary Returns image file content as it should be stored on the disc
  * @desc Replaces all kind of base64 coding
  * @private */

function getBinFileContent(content) {
   const svg_prefix = 'data:image/svg+xml;charset=utf-8,';

   if (content.indexOf(svg_prefix) === 0)
      return decodeURIComponent(content.slice(svg_prefix.length));

   if (content.indexOf('data:image/') === 0) {
      const p = content.indexOf('base64,');
      if (p > 0) {
         const base64 = content.slice(p + 7);
         return atob_func(base64);
      }
   }

   return content;
}

/** @summary Function store content as file with filename
  * @private */
async function saveFile(filename, content) {
   if (isFunc(_saveFileFunc))
      return _saveFileFunc(filename, getBinFileContent(content));
   if (isNodeJs()) {
      return import('fs').then(fs => {
         fs.writeFileSync(filename, getBinFileContent(content));
         return true;
      });
   } else if (typeof document !== 'undefined') {
      const a = document.createElement('a');
      a.download = filename;
      a.href = content;
      document.body.appendChild(a);

      return new Promise(resolve => {
         a.addEventListener('click', () => { a.parentNode.removeChild(a); resolve(true); });
         a.click();
      });
   }
   return false;
}

/** @summary Function store content as file with filename
  * @private */
function setSaveFile(func) {
   _saveFileFunc = func;
}

/** @summary Produce exec string for WebCanas to set color value
  * @desc Color can be id or string, but should belong to list of known colors
  * For higher color numbers TColor::GetColor(r,g,b) will be invoked to ensure color is exists
  * @private */
function getColorExec(col, method) {
   const arr = getRootColors();
   let id = -1;
   if (isStr(col)) {
      if (!col || (col === 'none'))
         id = 0;
       else {
         for (let k = 1; k < arr.length; ++k)
            if (arr[k] === col) { id = k; break; }
      }
      if ((id < 0) && (col.indexOf('rgb') === 0))
         id = 9999;
   } else if (Number.isInteger(col) && arr[col]) {
      id = col;
      col = arr[id];
   }

   if (id < 0) return '';

   // for higher color numbers ensure that such color exists
   if (id >= 50) {
      const c = d3_color(col);
      id = `TColor::GetColor(${c.r},${c.g},${c.b})`;
    }

   return `exec:${method}(${id})`;
}

export { showProgress, closeCurrentWindow, loadOpenui5, ToolbarIcons, registerForResize,
         detectRightButton, addMoveHandler, injectStyle,
         selectgStyle, saveSettings, readSettings, saveStyle, readStyle,
         saveFile, setSaveFile, getBinFileContent, getColorExec };