budibase/packages/string-templates/src/helpers/external.ts

69 lines
1.7 KiB
TypeScript

import helpers from "@budibase/handlebars-helpers"
import { date, duration } from "./date"
import { HelperFunctionBuiltin } from "./constants"
/**
* full list of supported helpers can be found here:
* https://github.com/Budibase/handlebars-helpers
*/
const EXTERNAL_FUNCTION_COLLECTIONS = [
"math",
"array",
"number",
"url",
"string",
"comparison",
"object",
"regex",
"uuid",
]
const ADDED_HELPERS = {
date: date,
duration: duration,
}
export const externalCollections = EXTERNAL_FUNCTION_COLLECTIONS
export const addedHelpers = ADDED_HELPERS
export function registerAll(handlebars: typeof Handlebars) {
for (let [name, helper] of Object.entries(ADDED_HELPERS)) {
handlebars.registerHelper(name, helper)
}
let externalNames = []
for (let collection of EXTERNAL_FUNCTION_COLLECTIONS) {
// collect information about helper
let hbsHelperInfo = helpers[collection]()
for (let entry of Object.entries(hbsHelperInfo)) {
const name = entry[0]
// skip built in functions and ones seen already
if (
HelperFunctionBuiltin.indexOf(name) !== -1 ||
externalNames.indexOf(name) !== -1
) {
continue
}
externalNames.push(name)
}
// attach it to our handlebars instance
helpers[collection]({
handlebars,
})
}
// add date external functionality
externalHelperNames = externalNames.concat(Object.keys(ADDED_HELPERS))
}
export function unregisterAll(handlebars: typeof Handlebars) {
for (let name of Object.keys(ADDED_HELPERS)) {
handlebars.unregisterHelper(name)
}
for (let name of externalHelperNames) {
handlebars.unregisterHelper(name)
}
externalHelperNames = []
}
export let externalHelperNames: any[] = []