@universis/common
Version:
Universis - common directives and services
201 lines • 24.6 kB
JavaScript
import { Injectable, Pipe } from '@angular/core';
import { AngularDataContext } from '@themost/angular';
import { DecimalPipe } from '@angular/common';
import { ConfigurationService } from './configuration.service';
import * as i0 from "@angular/core";
import * as i1 from "@themost/angular";
import * as i2 from "./configuration.service";
export function round(x, n) {
if (typeof x !== 'number') {
return 0;
}
if (n) {
return parseFloat(x.toFixed(n));
}
return Math.round(x);
}
export class GradeScale {
constructor(_locale, scale = null) {
this._locale = _locale;
this.scale = scale;
this.formatPrecision = 2;
this.scalePrecision = 2;
// init decimal pipe
this._formatter = new DecimalPipe(this._locale);
// get decimal separator regular expression
// @ts-ignore
this._decimalCharRegExp = new RegExp('\\' + this._formatter.transform(0.1, '1.1-1').substr(1, 1), 'ig');
if (scale) {
this.id = scale['id'];
this.name = scale['name'];
this.scaleType = scale['scaleType'];
this.scaleFactor = scale['scaleFactor'];
this.scaleBase = scale['scaleBase'];
this.formatPrecision = scale['formatPrecision'];
this.scalePrecision = scale['scalePrecision'];
this.values = scale['values'];
}
}
/**
* Formats the specified based on this grade scale and returns the formatted value
* @param {number} grade
* @returns string
*/
format(grade) {
if (this.scaleType === 0) {
if (typeof this.scaleFactor !== 'number') {
throw new TypeError('Grade scale factor must be a number.');
}
if (this.scaleFactor <= 0) {
throw new TypeError('Grade scale factor must greater than zero.');
}
// arithmetic grade scale
if (typeof grade === 'number') {
// get final grade by applying rounding
const finalGrade = round((grade / this.scaleFactor), this.formatPrecision);
// return formatted value based on the current locale
const result = this._formatter.transform(finalGrade, `1.${this.formatPrecision}-${this.formatPrecision}`);
if (result != null) {
return result;
}
}
return '';
}
else if (this.scaleType === 1 || this.scaleType === 3) {
let finalValue = round(grade, this.scalePrecision);
if (this.values != null) {
let findValue = this.values.find(x => {
return finalValue >= x.valueFrom && finalValue <= x.valueTo;
});
if (findValue) {
return findValue.name;
}
}
throw new RangeError('Out of range value for grade');
}
throw new Error('Not yet implemented');
}
/**
* Converts the given grade to the equivalent grade value base on this grade scale
* @param grade
*/
convert(grade) {
if (this.scaleType === 0) {
let finalGrade;
// if grade is a number
if (typeof grade === 'undefined' || grade === null) {
return;
}
else if (typeof grade === 'number') {
finalGrade = grade;
}
else if (typeof grade === 'string') {
// try to convert the given grade
finalGrade = parseFloat(grade.replace(this._decimalCharRegExp, '.'));
if (isNaN(finalGrade)) {
return;
}
}
if (typeof this.scaleFactor !== 'number') {
throw new TypeError('Grade scale factor must be a number.');
}
if (this.scaleFactor <= 0) {
throw new TypeError('Grade scale factor must greater than zero.');
}
// validate grade
const res = round((finalGrade * this.scaleFactor), this.formatPrecision + 1);
// throw error if result is greater than 1
if (res < 0 || res > 1) {
throw new Error('Grade is out of range. It must be between 0 to 1.');
}
return res;
}
else if (this.scaleType === 1 || this.scaleType === 3) {
if (this.values) {
let findValue = this.values.find(x => {
return x.name === grade || x.alternateName === grade;
});
if (findValue) {
return findValue.exactValue;
}
}
throw new RangeError('Out of range value for grade');
}
throw new Error('Not yet implemented');
}
}
export class GradeScaleService {
constructor(_context, _configurationService) {
this._context = _context;
this._configurationService = _configurationService;
//
}
/**
* Gets all the available grade scales
*/
getGradeScales() {
if (this._gradeScales) {
return Promise.resolve(this._gradeScales);
}
return this._context.model('GradeScales').getItems().then(result => {
const locale = this._configurationService.currentLocale;
this._gradeScales = result.map(x => {
return Object.assign(new GradeScale(locale), x);
});
return Promise.resolve(this._gradeScales);
}, (err) => {
console.log(err);
return null;
});
}
/**
* Gets a grade scale based on the given identifier
* @param {*} id
*/
getGradeScale(id) {
if (this._gradeScales) {
return Promise.resolve(this._gradeScales.find(value => {
return value.id === id;
}));
}
return this.getGradeScales().then(res => {
if (res == null) {
return;
}
return Promise.resolve(res.find(value => {
return value.id === id;
}));
});
}
}
GradeScaleService.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "15.2.10", ngImport: i0, type: GradeScaleService, deps: [{ token: i1.AngularDataContext }, { token: i2.ConfigurationService }], target: i0.ɵɵFactoryTarget.Injectable });
GradeScaleService.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: "12.0.0", version: "15.2.10", ngImport: i0, type: GradeScaleService });
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "15.2.10", ngImport: i0, type: GradeScaleService, decorators: [{
type: Injectable
}], ctorParameters: function () { return [{ type: i1.AngularDataContext }, { type: i2.ConfigurationService }]; } });
export class GradePipe {
constructor(_gradeScaleService) {
this._gradeScaleService = _gradeScaleService;
//
}
transform(value, gradeScale) {
if (gradeScale instanceof GradeScale) {
return Promise.resolve(gradeScale.format(value));
}
return this._gradeScaleService.getGradeScale(gradeScale).then(result => {
if (typeof result === 'undefined') {
return Promise.reject(new Error('The specified grade scale cannot be found or is inaccessible'));
}
return Promise.resolve(result.format(value));
});
}
}
GradePipe.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "15.2.10", ngImport: i0, type: GradePipe, deps: [{ token: GradeScaleService }], target: i0.ɵɵFactoryTarget.Pipe });
GradePipe.ɵpipe = i0.ɵɵngDeclarePipe({ minVersion: "14.0.0", version: "15.2.10", ngImport: i0, type: GradePipe, name: "grade" });
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "15.2.10", ngImport: i0, type: GradePipe, decorators: [{
type: Pipe,
args: [{
name: 'grade'
}]
}], ctorParameters: function () { return [{ type: GradeScaleService }]; } });
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{ Injectable, Pipe, PipeTransform} from '@angular/core';\nimport {AngularDataContext} from '@themost/angular';\nimport {DecimalPipe} from '@angular/common';\nimport {ConfigurationService} from './configuration.service';\n\nexport function round(x: any, n?: number): number {\n  if (typeof x !== 'number') {\n      return 0;\n  }\n  if (n) {\n      return parseFloat(x.toFixed(n));\n  }\n  return Math.round(x);\n}\n\nexport class GradeScale {\n\n  public id?: number;\n  public name?: string;\n  public scaleType?: number;\n  public scaleFactor?: number;\n  public scaleBase?: number;\n  public formatPrecision = 2;\n  public scalePrecision = 2;\n  public values?: any[];\n\n  private _formatter: DecimalPipe;\n  private readonly _decimalCharRegExp: RegExp;\n\n  constructor(private _locale: string, private scale: any = null) {\n    // init decimal pipe\n    this._formatter = new DecimalPipe(this._locale);\n    // get decimal separator regular expression\n    // @ts-ignore\n    this._decimalCharRegExp = new RegExp('\\\\' + this._formatter.transform(0.1, '1.1-1').substr(1, 1), 'ig');\n    if (scale) {\n      this.id = scale['id'];\n      this.name = scale['name'];\n      this.scaleType = scale['scaleType'];\n      this.scaleFactor = scale['scaleFactor'];\n      this.scaleBase = scale['scaleBase'];\n      this.formatPrecision = scale['formatPrecision'];\n      this.scalePrecision = scale['scalePrecision'];\n      this.values = scale['values'];\n    }\n  }\n\n  /**\n   * Formats the specified based on this grade scale and returns the formatted value\n   * @param {number} grade\n   * @returns string\n   */\n  format(grade: number): string {\n    if (this.scaleType === 0) {\n      if (typeof this.scaleFactor !== 'number') {\n        throw new TypeError('Grade scale factor must be a number.');\n      }\n      if (this.scaleFactor <= 0) {\n        throw new TypeError('Grade scale factor must greater than zero.');\n      }\n      // arithmetic grade scale\n      if (typeof (grade as any) === 'number') {\n        // get final grade by applying rounding\n        const finalGrade = round((grade / this.scaleFactor), this.formatPrecision);\n        // return formatted value based on the current locale\n        const result = this._formatter.transform(finalGrade, `1.${this.formatPrecision}-${this.formatPrecision}`);\n        if (result != null) {\n          return result;\n        }\n      }\n      return '';\n    } else if (this.scaleType === 1 || this.scaleType === 3) {\n      let finalValue = round(grade, this.scalePrecision);\n      if (this.values != null) {\n        let findValue = this.values.find(x => {\n          return finalValue >= x.valueFrom && finalValue <= x.valueTo;\n        });\n        if (findValue) {\n          return findValue.name;\n        }\n      }\n      throw new RangeError('Out of range value for grade');\n    }\n    throw new Error('Not yet implemented');\n  }\n\n  /**\n   * Converts the given grade to the equivalent grade value base on this grade scale\n   * @param grade\n   */\n  convert(grade: any): number | undefined {\n    if (this.scaleType === 0) {\n      let finalGrade;\n      // if grade is a number\n      if (typeof grade === 'undefined' || grade === null) {\n        return;\n      } else if (typeof grade === 'number') {\n        finalGrade = grade;\n      } else if (typeof grade === 'string') {\n        // try to convert the given grade\n        finalGrade = parseFloat(grade.replace(this._decimalCharRegExp, '.'));\n        if (isNaN(finalGrade)) {\n          return;\n        }\n      }\n      if (typeof this.scaleFactor !== 'number') {\n        throw new TypeError('Grade scale factor must be a number.');\n      }\n      if (this.scaleFactor <= 0) {\n        throw new TypeError('Grade scale factor must greater than zero.');\n      }\n      // validate grade\n      const res = <number>round((finalGrade * this.scaleFactor), this.formatPrecision + 1 );\n      // throw error if result is greater than 1\n      if (res < 0 || res > 1) {\n        throw new Error('Grade is out of range. It must be between 0 to 1.');\n      }\n      return res;\n    } else if (this.scaleType === 1 || this.scaleType === 3) {\n      if (this.values) {\n        let findValue = this.values.find( x => {\n          return x.name === grade || x.alternateName === grade;\n        });\n        if (findValue) {\n          return findValue.exactValue;\n        }\n      }\n      throw new RangeError('Out of range value for grade');\n    }\n    throw new Error('Not yet implemented');\n  }\n\n}\n\n@Injectable()\nexport class GradeScaleService {\n\n  private _gradeScales?: Array<GradeScale>;\n\n  constructor(private _context: AngularDataContext,\n              private _configurationService: ConfigurationService) {\n\n    //\n  }\n\n  /**\n   * Gets all the available grade scales\n   */\n  getGradeScales() {\n    if (this._gradeScales) {\n      return Promise.resolve(this._gradeScales);\n    }\n    return this._context.model('GradeScales').getItems().then(result => {\n      const locale = this._configurationService.currentLocale;\n      this._gradeScales = result.map( x => {\n        return Object.assign(new GradeScale(locale), x);\n      });\n      return Promise.resolve(this._gradeScales);\n    }, (err) => {\n\n      console.log(err);\n      return null;\n    });\n  }\n\n  /**\n   * Gets a grade scale based on the given identifier\n   * @param {*} id\n   */\n  getGradeScale(id: any): Promise<GradeScale | undefined> {\n    if (this._gradeScales) {\n      return Promise.resolve(this._gradeScales.find(value => {\n        return value.id === id;\n      }));\n    }\n    return this.getGradeScales().then(res => {\n      if (res == null) {\n        return;\n      }\n      return Promise.resolve(res.find(value => {\n        return value.id === id;\n      }));\n    });\n  }\n\n}\n\n@Pipe({\n  name: 'grade'\n})\nexport class GradePipe implements PipeTransform {\n\n  constructor(private _gradeScaleService: GradeScaleService) {\n    //\n  }\n\n  transform(value: any, gradeScale?: any): any {\n    if (gradeScale instanceof GradeScale) {\n      return Promise.resolve(gradeScale.format(value));\n    }\n    return this._gradeScaleService.getGradeScale(gradeScale).then( result => {\n      if (typeof result === 'undefined') {\n        return Promise.reject(new Error('The specified grade scale cannot be found or is inaccessible'));\n      }\n      return Promise.resolve(result.format(value));\n    });\n  }\n\n}\n"]}