mapcomplete/Models/ThemeConfig/WithContextLoader.ts

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2.8 KiB
TypeScript

import TagRenderingConfig from "./TagRenderingConfig";
import SharedTagRenderings from "../../Customizations/SharedTagRenderings";
import {TagRenderingConfigJson} from "./Json/TagRenderingConfigJson";
export default class WithContextLoader {
protected readonly _context: string;
private readonly _json: any;
constructor(json: any, context: string) {
this._json = json;
this._context = context;
}
/** Given a key, gets the corresponding property from the json (or the default if not found
*
* The found value is interpreted as a tagrendering and fetched/parsed
* */
public tr(key: string, deflt) {
const v = this._json[key];
if (v === undefined || v === null) {
if (deflt === undefined) {
return undefined;
}
return new TagRenderingConfig(
deflt,
`${this._context}.${key}.default value`
);
}
if (typeof v === "string") {
const shared = SharedTagRenderings.SharedTagRendering.get(v);
if (shared) {
return shared;
}
}
return new TagRenderingConfig(
v,
`${this._context}.${key}`
);
}
/**
* Converts a list of tagRenderingCOnfigJSON in to TagRenderingConfig
* A string is interpreted as a name to call
*/
public ParseTagRenderings(
tagRenderings: TagRenderingConfigJson[],
options?: {
/**
* Throw an error if 'question' is defined
*/
readOnlyMode?: boolean,
requiresId?: boolean
prepConfig?: ((config: TagRenderingConfigJson) => TagRenderingConfigJson)
}
): TagRenderingConfig[] {
if (tagRenderings === undefined) {
return [];
}
const context = this._context
options = options ?? {}
if (options.prepConfig === undefined) {
options.prepConfig = c => c
}
const renderings: TagRenderingConfig[] = []
for (let i = 0; i < tagRenderings.length; i++) {
const preparedConfig = tagRenderings[i];
const tr = new TagRenderingConfig(preparedConfig, `${context}.tagrendering[${i}]`);
if (options.readOnlyMode && tr.question !== undefined) {
throw "A question is defined for " + `${context}.tagrendering[${i}], but this is not allowed at this position - probably because this rendering is an icon, badge or label`
}
if (options.requiresId && tr.id === "") {
throw `${context}.tagrendering[${i}] has an invalid ID - make sure it is defined and not empty`
}
renderings.push(tr)
}
return renderings;
}
}