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import { Uuid } from "../Uuid";
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import { argumentNotEmptyString, getGlobal } from "../safe";
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import { TraceSource } from "../log/TraceSource";
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import m = require("module");
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const sandboxId = Uuid();
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define(sandboxId, ["require"], (r: any) => r);
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const globalRequire = getGlobal().require as Require || requirejs;
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const trace = TraceSource.get(m.id);
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trace.debug("globalRequire = {0}", globalRequire);
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class ModuleResolver {
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_base: string | undefined;
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_require: Require;
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constructor(req: Require, base?: string) {
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this._base = base;
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this._require = req;
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}
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resolve(moduleName: string) {
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argumentNotEmptyString(moduleName, "moduleName");
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const resolvedName = moduleName[0] === "." && this._base ? [this._base, moduleName].join("/") : moduleName;
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trace.debug(`${moduleName} -> ${resolvedName}`);
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const req = this._require;
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return new Promise<any>((cb, eb) => {
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req([resolvedName], cb, eb);
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});
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}
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}
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export function makeResolver(moduleName: string, contextRequire: Require) {
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const base = moduleName && moduleName.split("/").slice(0, -1).join("/");
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const req = contextRequire || globalRequire;
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if (!req)
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throw new Error("A global require isn't defined, the contextRequire parameter is mandatory");
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const resolver = new ModuleResolver(req, base);
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return (id: string) => resolver.resolve(id);
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}
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