truly-ui
Version:
Web Components for Desktop Applications.
210 lines • 30.6 kB
JavaScript
import { Injectable } from '@angular/core';
import { Cluster, Graph, Node } from '../types/graph';
import { elvis } from '../../core/helper/elvis';
import * as i0 from "@angular/core";
const WIDTH_SCROLL = 17;
export class GenerateEventsService {
constructor() {
this.heightSchedule = 0;
this.widthSchedule = 0;
this.events = [];
this.originalEvents = [];
this.workScaleInMileseconds = [];
}
with(events) {
if (this.scheduleSlats) {
if (events.length > 0 && this.scheduleSlats.length > 0) {
this.originalEvents = JSON.parse(JSON.stringify(events));
events = JSON.parse(JSON.stringify(events));
this.events = events;
this.transformDateToPixel();
return this.generateEvents();
}
}
}
initializeArray(workScaleInMileseconds, scheduleSlats) {
if (scheduleSlats && scheduleSlats) {
if (scheduleSlats.length > 0 && workScaleInMileseconds.length > 0) {
this.workScaleInMileseconds = workScaleInMileseconds;
this.scheduleSlats = scheduleSlats;
this.scheduleSlats.toArray().forEach((item) => {
this.heightSchedule = this.heightSchedule + item.nativeElement.offsetHeight;
});
this.widthSchedule = this.scheduleSlats.first.nativeElement.offsetWidth - WIDTH_SCROLL;
}
}
}
transformDateToPixel() {
for (let i = 0; i <= this.events.length - 1; i++) {
this.events[i].date = Object.assign({}, {
start: Math.round(this.convertMillisecondsToPixel(this.events[i].date.start)),
end: Math.round(this.convertMillisecondsToPixel(this.events[i].date.end))
});
}
}
convertMillisecondsToPixel(date = new Date().getTime()) {
let heightBody;
let startDayMilliseconds;
let endDayMilliseconds;
let converted;
let currentDate;
let position = -1;
let offsetHeight = 0;
this.workScaleInMileseconds.forEach((item, index, array) => {
if (date >= this.workScaleInMileseconds[index].start) {
position++;
const slotObject = this.scheduleSlats.find((slot, idx) => idx === (index - 1));
offsetHeight = offsetHeight + elvis(slotObject, 'nativeElement.offsetHeight') || 0;
}
});
if (position < 0 && offsetHeight <= 0) {
return -1000;
}
startDayMilliseconds = Math.floor(this.workScaleInMileseconds[position].start / 100000);
endDayMilliseconds = Math.floor(this.workScaleInMileseconds[position].end / 100000);
heightBody = elvis(this.scheduleSlats.find((item, idx) => idx === position), 'nativeElement.offsetHeight') || 0;
date = Math.floor(date / 100000);
currentDate = date - startDayMilliseconds;
converted = (heightBody * currentDate) / (endDayMilliseconds - startDayMilliseconds);
return converted > heightBody ? -1000 : (converted + offsetHeight);
}
generateEvents() {
const eventsWithPositioning = [];
const histogram = this.createHistogram();
const graph = this.createTheGraph(histogram);
this.setClusterWidth(graph);
this.setNodesPosition(graph);
for (const nodeId in graph.nodes) {
if (graph.nodes.hasOwnProperty(nodeId)) {
if (graph.nodes[nodeId].cluster) {
const node = graph.nodes[nodeId];
const event = {
positions: {
id: node.id,
top: node.start,
left: node.position * node.cluster.width,
height: node.end - node.start,
width: node.cluster.width
},
data: this.originalEvents.filter((e) => e.value === node.id)[0]
};
eventsWithPositioning.push(event);
}
}
}
return eventsWithPositioning;
}
createHistogram() {
// initializing the minutes array
const minutes = new Array(this.heightSchedule);
for (let i = 0; i < minutes.length; i++) {
minutes[i] = [];
}
// setting which events occurs at each minute
this.events.forEach((event) => {
for (let i = event.date.start; i <= event.date.end - 1; i++) {
if (minutes[i]) {
minutes[i].push(event.value);
}
}
});
return minutes;
}
createTheGraph(minutes) {
const graph = new Graph();
const nodeMap = {};
// creating the nodes
this.events.forEach((event) => {
const node = new Node(event.value, event.date.start, event.date.end);
nodeMap[node.id] = node;
});
// creating the clusters
let cluster = null;
// cluster is a group of nodes which have a connectivity path, when the minute array length is 0 it means that
// there are n more nodes in the cluster - cluster can be "closed".
minutes.forEach((minute, index, arrayMinutes) => {
if (minute.length > 0) {
if (arrayMinutes[index - 1]) {
if ((minute[0] !== arrayMinutes[index - 1][0]) && (minute.length !== arrayMinutes[index - 1].length) && cluster) {
graph.clusters.push(cluster);
cluster = null;
}
}
cluster = cluster || new Cluster();
minute.forEach((eventId) => {
if (!cluster.nodes[eventId]) {
cluster.nodes[eventId] = nodeMap[eventId];
nodeMap[eventId].cluster = cluster;
}
});
}
else {
if (cluster !== null) {
graph.clusters.push(cluster);
}
cluster = null;
}
});
if (cluster !== null) {
graph.clusters.push(cluster);
}
// adding neighbours to nodes, neighbours is the group of colliding nodes (events).
// adding the biggest clique for each site
minutes.forEach((minute) => {
minute.forEach((eventId) => {
const sourceNode = nodeMap[eventId];
// a max clique is a biggest group of colliding events
sourceNode.biggestCliqueSize = Math.max(sourceNode.biggestCliqueSize, minute.length);
minute.forEach((targetEventId) => {
if (eventId !== targetEventId) {
sourceNode.neighbours[targetEventId] = nodeMap[targetEventId];
}
});
});
});
graph.nodes = nodeMap;
return graph;
}
setClusterWidth(graph) {
graph.clusters.forEach((cluster) => {
let maxCliqueSize = 1;
for (const nodeId in cluster.nodes) {
if (cluster.nodes.hasOwnProperty(nodeId)) {
maxCliqueSize = Math.max(maxCliqueSize, cluster.nodes[nodeId].biggestCliqueSize);
}
}
cluster.maxCliqueSize = maxCliqueSize;
cluster.width = this.widthSchedule / (maxCliqueSize);
});
}
setNodesPosition(graph) {
graph.clusters.forEach((cluster) => {
for (const nodeId in cluster.nodes) {
if (cluster.nodes.hasOwnProperty(nodeId)) {
const node = cluster.nodes[nodeId];
const positionArray = new Array(node.cluster.maxCliqueSize);
for (const neighbourId in node.neighbours) {
if (node.neighbours.hasOwnProperty(neighbourId)) {
const neighbour = node.neighbours[neighbourId];
if (neighbour.position != null) {
positionArray[neighbour.position] = true;
}
}
}
for (let i = 0; i < positionArray.length; i++) {
if (!positionArray[i]) {
node.position = i;
break;
}
}
}
}
});
}
}
/** @nocollapse */ GenerateEventsService.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "15.2.10", ngImport: i0, type: GenerateEventsService, deps: [], target: i0.ɵɵFactoryTarget.Injectable });
/** @nocollapse */ GenerateEventsService.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: "12.0.0", version: "15.2.10", ngImport: i0, type: GenerateEventsService });
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "15.2.10", ngImport: i0, type: GenerateEventsService, decorators: [{
type: Injectable
}], ctorParameters: function () { return []; } });
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{ Injectable, QueryList } from '@angular/core';\nimport { Cluster, Graph, Node } from '../types/graph';\nimport { elvis } from '../../core/helper/elvis';\nimport { ScheduleDataSource } from '../types/datasource.type';\n\nconst WIDTH_SCROLL = 17;\n\n@Injectable()\nexport class GenerateEventsService {\n\n  private heightSchedule = 0;\n\n  private widthSchedule = 0;\n\n  private events = [];\n\n  private originalEvents = [];\n\n  private workScaleInMileseconds = [];\n\n  private scheduleSlats: QueryList<any>;\n\n  constructor() {}\n\n  with(  events: ScheduleDataSource[] ) {\n    if (  this.scheduleSlats ) {\n      if ( events.length > 0 && this.scheduleSlats.length > 0 ) {\n        this.originalEvents = JSON.parse( JSON.stringify( events ) );\n        events = JSON.parse( JSON.stringify( events ) );\n\n        this.events = events;\n        this.transformDateToPixel();\n        return this.generateEvents();\n      }\n    }\n\n  }\n\n  initializeArray( workScaleInMileseconds, scheduleSlats: QueryList<any>  ) {\n    if ( scheduleSlats && scheduleSlats) {\n      if ( scheduleSlats.length > 0 && workScaleInMileseconds.length > 0 ) {\n        this.workScaleInMileseconds = workScaleInMileseconds;\n        this.scheduleSlats = scheduleSlats;\n        this.scheduleSlats.toArray().forEach( (item) => {\n          this.heightSchedule = this.heightSchedule + item.nativeElement.offsetHeight;\n        });\n        this.widthSchedule = this.scheduleSlats.first.nativeElement.offsetWidth - WIDTH_SCROLL;\n      }\n    }\n  }\n\n  private transformDateToPixel() {\n    for ( let i = 0; i <= this.events.length - 1; i++) {\n      this.events[i].date = Object.assign({}, {\n        start: Math.round(this.convertMillisecondsToPixel( this.events[i].date.start )),\n        end:  Math.round(this.convertMillisecondsToPixel( this.events[i].date.end ))\n      });\n    }\n  }\n\n  convertMillisecondsToPixel(date = new Date().getTime()) {\n    let heightBody;\n    let startDayMilliseconds;\n    let endDayMilliseconds;\n    let converted;\n    let currentDate;\n    let position = -1;\n    let offsetHeight = 0;\n\n    this.workScaleInMileseconds.forEach(( item, index, array) => {\n      if ( date >= this.workScaleInMileseconds[index].start ) {\n        position++;\n        const slotObject = this.scheduleSlats.find( (slot, idx) => idx === ( index - 1));\n        offsetHeight = offsetHeight + elvis(slotObject, 'nativeElement.offsetHeight') || 0;\n      }\n    });\n\n    if ( position < 0 && offsetHeight <= 0) {\n      return -1000;\n    }\n\n    startDayMilliseconds = Math.floor(this.workScaleInMileseconds[position].start / 100000 );\n    endDayMilliseconds = Math.floor(this.workScaleInMileseconds[position].end / 100000 );\n    heightBody = elvis(this.scheduleSlats.find( (item, idx) => idx === position), 'nativeElement.offsetHeight') || 0;\n    date = Math.floor(date / 100000 );\n    currentDate = date - startDayMilliseconds;\n    converted = ( heightBody * currentDate ) / ( endDayMilliseconds - startDayMilliseconds);\n\n    return converted > heightBody  ? -1000 : ( converted + offsetHeight );\n  }\n\n  private generateEvents() {\n    const eventsWithPositioning = [];\n    const histogram = this.createHistogram();\n    const graph = this.createTheGraph( histogram );\n    this.setClusterWidth( graph );\n    this.setNodesPosition( graph );\n\n    for ( const nodeId in graph.nodes ) {\n      if ( graph.nodes.hasOwnProperty(nodeId) ) {\n        if ( graph.nodes[nodeId].cluster ) {\n          const node = graph.nodes[nodeId];\n          const event = {\n            positions: {\n              id: node.id,\n              top: node.start,\n              left: node.position * node.cluster.width,\n              height: node.end - node.start,\n              width: node.cluster.width\n            },\n            data: this.originalEvents.filter(( e ) => e.value === node.id )[0]\n          };\n          eventsWithPositioning.push(event);\n        }\n      }\n    }\n    return eventsWithPositioning;\n  }\n\n  private createHistogram() {\n\n    // initializing the minutes array\n    const minutes = new Array( this.heightSchedule );\n    for (let i = 0; i < minutes.length; i++) {\n      minutes[i] = [];\n    }\n\n    // setting which events occurs at each minute\n    this.events.forEach( (event) => {\n      for ( let i = event.date.start; i <= event.date.end - 1; i++ ) {\n        if ( minutes[i] ) {\n          minutes[i].push(event.value);\n        }\n      }\n    });\n    return minutes;\n  }\n\n  private createTheGraph( minutes ) {\n    const graph = new Graph();\n    const nodeMap = {};\n\n    // creating the nodes\n    this.events.forEach( (event) => {\n      const node = new Node(event.value, event.date.start, event.date.end);\n      nodeMap[node.id] = node;\n    });\n\n    // creating the clusters\n    let cluster = null;\n\n    // cluster is a group of nodes which have a connectivity path, when the minute array length is 0 it means that\n    // there are n more nodes in the cluster - cluster can be \"closed\".\n    minutes.forEach( (minute, index, arrayMinutes ) => {\n      if (minute.length > 0) {\n\n        if ( arrayMinutes[index - 1] ) {\n          if ( ( minute[0] !== arrayMinutes[index - 1][0] ) && ( minute.length !== arrayMinutes[index - 1].length )  && cluster) {\n            graph.clusters.push(cluster);\n            cluster = null;\n          }\n        }\n\n\n        cluster = cluster || new Cluster();\n        minute.forEach( ( eventId ) => {\n          if (!cluster.nodes[eventId]) {\n            cluster.nodes[eventId] = nodeMap[eventId];\n            nodeMap[eventId].cluster = cluster;\n          }\n        });\n      } else {\n        if (cluster !== null) {\n          graph.clusters.push(cluster);\n        }\n\n        cluster = null;\n      }\n    });\n\n    if (cluster !== null) {\n      graph.clusters.push(cluster);\n    }\n\n    // adding neighbours to nodes, neighbours is the group of colliding nodes (events).\n    // adding the biggest clique for each site\n    minutes.forEach((minute) => {\n      minute.forEach( (eventId) => {\n        const sourceNode = nodeMap[eventId];\n\n        // a max clique is a biggest group of colliding events\n        sourceNode.biggestCliqueSize = Math.max(sourceNode.biggestCliqueSize, minute.length);\n        minute.forEach( (targetEventId) => {\n          if (eventId !== targetEventId) {\n            sourceNode.neighbours[targetEventId] = nodeMap[targetEventId];\n          }\n        });\n      });\n    });\n\n    graph.nodes = nodeMap;\n    return graph;\n  }\n\n  private setClusterWidth( graph ) {\n    graph.clusters.forEach( (cluster) => {\n\n      let maxCliqueSize = 1;\n      for ( const nodeId in cluster.nodes ) {\n        if ( cluster.nodes.hasOwnProperty(nodeId) ) {\n          maxCliqueSize = Math.max(maxCliqueSize, cluster.nodes[nodeId].biggestCliqueSize);\n        }\n      }\n\n      cluster.maxCliqueSize = maxCliqueSize;\n      cluster.width = this.widthSchedule / (maxCliqueSize);\n    });\n  }\n\n  private setNodesPosition( graph ) {\n    graph.clusters.forEach( (cluster) => {\n      for (const nodeId in cluster.nodes) {\n        if ( cluster.nodes.hasOwnProperty(nodeId) ) {\n          const node = cluster.nodes[nodeId];\n          const positionArray = new Array(node.cluster.maxCliqueSize);\n\n          for (const neighbourId in node.neighbours) {\n            if (node.neighbours.hasOwnProperty(neighbourId)) {\n              const neighbour = node.neighbours[neighbourId];\n              if (neighbour.position != null) {\n                positionArray[neighbour.position] = true;\n              }\n            }\n          }\n\n          for (let i = 0; i < positionArray.length; i++) {\n            if (!positionArray[i]) {\n              node.position = i;\n              break;\n            }\n          }\n        }\n      }\n    });\n  }\n\n\n}\n"]}