87 lines
2.3 KiB
TypeScript
87 lines
2.3 KiB
TypeScript
import { Plug } from "../../plugos/plug.ts";
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import {
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AssetBundle,
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assetReadFileSync,
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} from "../../plugos/asset_bundle_reader.ts";
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import { FileMeta } from "../types.ts";
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import { FileData, FileEncoding, SpacePrimitives } from "./space_primitives.ts";
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export class AssetBundlePlugSpacePrimitives implements SpacePrimitives {
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constructor(
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private wrapped: SpacePrimitives,
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private assetBundle: AssetBundle,
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) {
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}
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async fetchFileList(): Promise<FileMeta[]> {
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const l = await this.wrapped.fetchFileList();
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return Object.entries(this.assetBundle).filter(([k]) =>
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k.startsWith("_plug/")
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).map(([_, v]) => v.meta).concat(l);
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}
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readFile(
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name: string,
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encoding: FileEncoding,
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): Promise<{ data: FileData; meta: FileMeta }> {
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if (this.assetBundle[name]) {
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const data = assetReadFileSync(this.assetBundle, name);
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// console.log("Requested encoding", encoding);
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return Promise.resolve({
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data: encoding === "string" ? new TextDecoder().decode(data) : data,
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meta: {
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lastModified: 0,
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size: data.byteLength,
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perm: "ro",
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contentType: "application/json",
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} as FileMeta,
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});
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}
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return this.wrapped.readFile(name, encoding);
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}
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getFileMeta(name: string): Promise<FileMeta> {
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if (this.assetBundle[name]) {
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const data = assetReadFileSync(this.assetBundle, name);
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return Promise.resolve({
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lastModified: 0,
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size: data.byteLength,
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perm: "ro",
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contentType: "application/json",
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} as FileMeta);
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}
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return this.wrapped.getFileMeta(name);
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}
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writeFile(
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name: string,
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encoding: FileEncoding,
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data: FileData,
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selfUpdate?: boolean | undefined,
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): Promise<FileMeta> {
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return this.wrapped.writeFile(name, encoding, data, selfUpdate);
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}
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deleteFile(name: string): Promise<void> {
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if (this.assetBundle[name]) {
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// Quietly ignore
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return Promise.resolve();
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}
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return this.wrapped.deleteFile(name);
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}
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// deno-lint-ignore no-explicit-any
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proxySyscall(plug: Plug<any>, name: string, args: any[]): Promise<any> {
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return this.wrapped.proxySyscall(plug, name, args);
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}
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invokeFunction(
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plug: Plug<any>,
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env: string,
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name: string,
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args: any[],
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): Promise<any> {
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return this.wrapped.invokeFunction(plug, env, name, args);
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}
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}
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