mapcomplete/Models/Denomination.ts

133 lines
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4.2 KiB
TypeScript

import {Translation} from "../UI/i18n/Translation";
import {ApplicableUnitJson} from "./ThemeConfig/Json/UnitConfigJson";
import Translations from "../UI/i18n/Translations";
import {UIEventSource} from "../Logic/UIEventSource";
import BaseUIElement from "../UI/BaseUIElement";
import Toggle from "../UI/Input/Toggle";
export class Denomination {
public readonly canonical: string;
public readonly _canonicalSingular: string;
public readonly default: boolean;
public readonly prefix: boolean;
public readonly alternativeDenominations: string [];
private readonly _human: Translation;
private readonly _humanSingular?: Translation;
constructor(json: ApplicableUnitJson, context: string) {
context = `${context}.unit(${json.canonicalDenomination})`
this.canonical = json.canonicalDenomination.trim()
if (this.canonical === undefined) {
throw `${context}: this unit has no decent canonical value defined`
}
this._canonicalSingular = json.canonicalDenominationSingular?.trim()
json.alternativeDenomination.forEach((v, i) => {
if (((v?.trim() ?? "") === "")) {
throw `${context}.alternativeDenomination.${i}: invalid alternative denomination: undefined, null or only whitespace`
}
})
this.alternativeDenominations = json.alternativeDenomination?.map(v => v.trim()) ?? []
this.default = json.default ?? false;
this._human = Translations.T(json.human, context + "human")
this._humanSingular = Translations.T(json.humanSingular, context + "humanSingular")
this.prefix = json.prefix ?? false;
}
get human(): Translation {
return this._human.Clone()
}
get humanSingular(): Translation {
return (this._humanSingular ?? this._human).Clone()
}
getToggledHuman(isSingular: UIEventSource<boolean>): BaseUIElement{
if(this._humanSingular === undefined){
return this.human
}
return new Toggle(
this.humanSingular,
this.human,
isSingular
)
}
public canonicalValue(value: string, actAsDefault?: boolean) {
if (value === undefined) {
return undefined;
}
const stripped = this.StrippedValue(value, actAsDefault)
if (stripped === null) {
return null;
}
if(stripped === "1" && this._canonicalSingular !== undefined){
return "1 "+this._canonicalSingular
}
return stripped + " " + this.canonical;
}
/**
* Returns the core value (without unit) if:
* - the value ends with the canonical or an alternative value (or begins with if prefix is set)
* - the value is a Number (without unit) and default is set
*
* Returns null if it doesn't match this unit
*/
public StrippedValue(value: string, actAsDefault?: boolean): string {
if (value === undefined) {
return undefined;
}
value = value.toLowerCase()
const self = this;
function startsWith(key){
if(self.prefix){
return value.startsWith(key)
}else{
return value.endsWith(key)
}
}
function substr(key){
if(self.prefix){
return value.substr(key.length).trim()
}else{
return value.substring(0, value.length - key.length).trim()
}
}
if(this.canonical !== "" && startsWith(this.canonical.toLowerCase())){
return substr(this.canonical)
}
if(this._canonicalSingular !== undefined && this._canonicalSingular !== "" && startsWith(this._canonicalSingular)){
return substr(this._canonicalSingular)
}
for (const alternativeValue of this.alternativeDenominations) {
if (startsWith(alternativeValue)) {
return substr(alternativeValue);
}
}
if (this.default || actAsDefault) {
const parsed = Number(value.trim())
if (!isNaN(parsed)) {
return value.trim();
}
}
return null;
}
}