Archived
48 lines
1.7 KiB
TypeScript
48 lines
1.7 KiB
TypeScript
import { isPiWebPluginId } from "./pluginIds.js";
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const MACHINE_PLUGIN_ID_PREFIX = "machine.";
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export interface MachineScopedPluginIdParts {
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machineId: string;
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pluginId: string;
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}
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export function machineScopedPluginId(machineId: string, pluginId: string): string {
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if (machineId === "") throw new Error("Machine id is required");
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if (!isPiWebPluginId(pluginId)) throw new Error(`Invalid PI WEB plugin id: ${pluginId}`);
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return `${MACHINE_PLUGIN_ID_PREFIX}${stringToHex(machineId)}.${pluginId}`;
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}
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export function parseMachineScopedPluginId(pluginId: string): MachineScopedPluginIdParts | undefined {
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if (!pluginId.startsWith(MACHINE_PLUGIN_ID_PREFIX)) return undefined;
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const rest = pluginId.slice(MACHINE_PLUGIN_ID_PREFIX.length);
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const separator = rest.indexOf(".");
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if (separator < 1) return undefined;
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const encodedMachineId = rest.slice(0, separator);
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const sourcePluginId = rest.slice(separator + 1);
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if (!isHexString(encodedMachineId) || !isPiWebPluginId(sourcePluginId)) return undefined;
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const machineId = hexToString(encodedMachineId);
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if (machineId === "") return undefined;
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return { machineId, pluginId: sourcePluginId };
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}
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function stringToHex(value: string): string {
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return [...new TextEncoder().encode(value)]
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.map((byte) => byte.toString(16).padStart(2, "0"))
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.join("");
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}
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function hexToString(value: string): string {
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const bytes = new Uint8Array(value.length / 2);
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for (let index = 0; index < value.length; index += 2) {
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bytes[index / 2] = Number.parseInt(value.slice(index, index + 2), 16);
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}
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return new TextDecoder().decode(bytes);
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}
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function isHexString(value: string): boolean {
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return value.length > 0 && value.length % 2 === 0 && /^[0-9a-f]+$/u.test(value);
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}
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