custom binding function config

config.d.ts

@@ -1,4 +1,9 @@
-import { Variable } from "./src/types/properties/value.ts"
+import { BindingItem, Variable } from "./src/types/properties/value.ts"
+
+export interface RetBindingValue {
+	generate_bindings?: Array<{ source_property_name: string; target_property_name: string }>
+	return_value: string
+}
 
 export interface Config {
 	compiler?: {
@@ -27,4 +32,5 @@ export interface Config {
 		}[]
 	}
 	global_variables?: Record<Variable, string>
+	binding_functions?: Record<string, (...args: string[]) => RetBindingValue>
 }

package.json

@@ -22,7 +22,7 @@
 	"scripts": {
 		"build": "tsc",
 		"dev": "tsc --watch",
-		"test": "bun test/app.ts --test",
+		"test": "bun test/app.ts",
 		"prefetch": "bun scripts/prefetch",
 		"vanilla:defs": "bun scripts/vanilladefs",
 		"gen:enums": "bun scripts/enum",

resources/asajs.config.js

@@ -6,7 +6,7 @@ export const config = {
 	packinfo: {
 		name: "AsaJS",
 		description: "Create your Minecraft JSON-UI resource packs using JavaScript.",
-		version: [4, 0, 1],
+		version: [1, 0, 0],
 	},
 	compiler: {
 		enabled: true,
@@ -14,4 +14,19 @@ export const config = {
 		autoEnable: true,
 		importToPreview: false,
 	},
+	binding_functions: {
+		custom_abs: function (number) {
+			const randomAbs = RandomBindingString(16)
+
+			return {
+				generate_bindings: [
+					{
+						source_property_name: `[ abs(${number}) ]`,
+						target_property_name: randomAbs,
+					},
+				],
+				return_value: randomAbs,
+			}
+		},
+	},
 }

src/compilers/Configuration.ts

@@ -1,7 +1,7 @@
 import fs from "fs"
 import path from "path"
 // @ts-ignore
-import { Config } from "../../config.js"
+import { Config, RetBindingValue } from "../../config.js"
 import { createRequire } from "module"
 
 const options: Record<string, unknown> = {}
@@ -10,16 +10,43 @@ for (const arg of process.argv) {
 	if (arg.startsWith("--")) options[arg.slice(2)] = true
 }
 
-export const isTestMode = options["test"] ?? false
+export const isTestMode = !fs.existsSync("node_modules/asajs")
 
 if (!fs.existsSync("asajs.config.js")) {
 	if (isTestMode) {
 		fs.writeFileSync(
 			"asajs.config.js",
-			fs.readFileSync("resources/asajs.config.js", "utf-8").replace("asajs/", "./"),
+			[
+				`export function RandomBindingString(length, base = 32) {
+	const chars = "0123456789abcdefghijklmnopqrstuvwxyz".slice(0, base)
+	const out = new Array()
+				
+	try {
+		const buffer = new Uint8Array(length)
+		crypto.getRandomValues(buffer)
+		for (let i = 0; i < length; i++) {
+			out[i] = chars[buffer[i] % base]
+		}
+	} catch {
+		for (let i = 0; i < length; i++) {
+			out[i] = chars[Math.floor(Math.random() * base)]
+		}
+	}
+				
+	return \`#$\{out.join("")}\`
+}\n`,
+
+				fs.readFileSync("resources/asajs.config.js", "utf-8").replace("asajs/", "./"),
+			].join("\n"),
 		)
 	} else {
-		fs.copyFileSync("node_modules/asajs/resources/asajs.config.js", "asajs.config.js")
+		fs.writeFileSync(
+			"asajs.config.js",
+			[
+				'import { RandomBindingString } from "asajs"\n',
+				fs.readFileSync("node_modules/asajs/resources/asajs.config.js", "utf-8"),
+			].join("\n"),
+		)
 	}
 }
 
@@ -29,6 +56,8 @@ export const isBuildMode = options["build"] ?? config.compiler?.enabled ?? false
 export const isLinkMode = options["link"] ?? config.compiler?.autoImport ?? false
 export const unLinked = options["unlink"] ?? !(config.compiler?.autoImport ?? true)
 
+export const bindingFuntions = config.binding_functions
+
 if (!fs.existsSync(".gitignore")) {
 	fs.writeFileSync(".gitignore", `node_modules`, "utf-8")
 }

src/compilers/bindings/Function.ts

@@ -1,4 +1,6 @@
-import { RandomBindingString } from "../../components/Utils.js"
+import { RandomBindingString, ResolveBinding } from "../../components/Utils.js"
+import { BindingItem } from "../../types/properties/value.js"
+import { bindingFuntions } from "../Configuration.js"
 import { Expression, GenBinding } from "./types.js"
 
 type CallbackRet = {
@@ -198,3 +200,24 @@ export const defaultFunctions = {
 } satisfies Record<string, Callback>
 
 Object.entries(defaultFunctions).forEach(([key, value]) => FunctionMap.set(key, value))
+if (bindingFuntions)
+	Object.entries(bindingFuntions).forEach(([key, value]) => {
+		// @ts-ignore
+		FunctionMap.set(key, (...args) => {
+			const { generate_bindings, return_value } = value(...args)
+			if (generate_bindings) {
+				const resolve = ResolveBinding(new Map(), ...(generate_bindings as BindingItem[]))
+				return {
+					genBindings: resolve.map(({ source_property_name, target_property_name }) => ({
+						source: source_property_name!,
+						target: target_property_name!,
+					})),
+					value: return_value,
+				}
+			}
+
+			return {
+				value: return_value,
+			}
+		})
+	})

src/compilers/ui/builder.ts

@@ -88,7 +88,10 @@ if (isBuildMode) {
 			console.log("Version:", config.packinfo?.version || [4, 0, 0])
 			console.log("UUID:", await BuildCache.get<[string, string]>("uuid"))
 			if (gamePath)
-				console.log("Install Path:", `\x1b[32m"${path.join(gamePath, await getBuildFolderName())}"\x1b[0m`)
+				console.log(
+					"Install Path:",
+					`\x1b[32m"${path.join(gamePath, "development_resource_packs", await getBuildFolderName())}"\x1b[0m`,
+				)
 			console.log("=============================================================")
 		}
 	})

src/compilers/ui/linker.ts

@@ -41,7 +41,7 @@ export async function createBuildFolder() {
 }
 
 export async function getBuildFolderName() {
-	return await BuildCache.getWithSetDefault("build-key", () => RandomString(16))
+	return await BuildCache.getWithSetDefault("build-key", () => `asajs-build-${RandomString(16)}`)
 }
 
 export let gamePath: string | null = null

test/app.ts

@@ -1,10 +1,16 @@
 import { Anchor, Label, Modify } from ".."
 
-const label = Label({
-	text: "Hello World from my Custom UI!",
-	shadow: true,
-	anchor: Anchor.TOP_MIDDLE,
-	offset: [0, 10],
+const label = Label(
+	{
+		text: "Hello World from my Custom UI!",
+		shadow: true,
+		anchor: Anchor.TOP_MIDDLE,
+		offset: [0, 10],
+	},
+	"test",
+).addBindings({
+	source_property_name: `[ custom_abs(#a) ]`,
+	target_property_name: "#text",
 })
 
 Modify("start", "start_screen_content").insertChild(label)