68 lines
1.7 KiB
TypeScript
68 lines
1.7 KiB
TypeScript
import { FileMeta } from "../types.ts";
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import { SpacePrimitives } from "./space_primitives.ts";
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import type { SysCallMapping } from "../../plugos/system.ts";
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// Enriches the file list listing with custom metadata from the page index
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export class FileMetaSpacePrimitives implements SpacePrimitives {
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constructor(
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private wrapped: SpacePrimitives,
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private indexSyscalls: SysCallMapping,
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) {
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}
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async fetchFileList(): Promise<FileMeta[]> {
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const files = await this.wrapped.fetchFileList();
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// Enrich the file list with custom meta data (for pages)
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const allFilesMap: Map<string, any> = new Map(
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files.map((fm) => [fm.name, fm]),
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);
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for (
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const { page, value } of await this.indexSyscalls["index.queryPrefix"](
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{} as any,
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"meta:",
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)
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) {
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const p = allFilesMap.get(`${page}.md`);
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if (p) {
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for (const [k, v] of Object.entries(value)) {
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if (
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["name", "lastModified", "size", "perm", "contentType"].includes(k)
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) {
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continue;
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}
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p[k] = v;
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}
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}
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}
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return [...allFilesMap.values()];
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}
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readFile(
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name: string,
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): Promise<{ data: Uint8Array; meta: FileMeta }> {
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return this.wrapped.readFile(name);
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}
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getFileMeta(name: string): Promise<FileMeta> {
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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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data: Uint8Array,
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selfUpdate?: boolean,
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lastModified?: number,
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): Promise<FileMeta> {
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return this.wrapped.writeFile(
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name,
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data,
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selfUpdate,
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lastModified,
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);
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}
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deleteFile(name: string): Promise<void> {
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return this.wrapped.deleteFile(name);
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}
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}
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