92 lines
2.4 KiB
TypeScript
92 lines
2.4 KiB
TypeScript
import { EventHook } from "../../plugos/hooks/event.ts";
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import { Plug } from "../../plugos/plug.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 EventedSpacePrimitives implements SpacePrimitives {
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constructor(private wrapped: SpacePrimitives, private eventHook: EventHook) {}
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fetchFileList(): Promise<FileMeta[]> {
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return this.wrapped.fetchFileList();
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}
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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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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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return this.wrapped.readFile(name, encoding);
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}
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async 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,
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): Promise<FileMeta> {
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const newMeta = await this.wrapped.writeFile(
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name,
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encoding,
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data,
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selfUpdate,
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);
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// This can happen async
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if (name.endsWith(".md")) {
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const pageName = name.substring(0, name.length - 3);
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let text = "";
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switch (encoding) {
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case "utf8":
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text = data as string;
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break;
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case "arraybuffer":
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{
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const decoder = new TextDecoder("utf-8");
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text = decoder.decode(data as ArrayBuffer);
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}
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break;
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case "dataurl":
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throw Error("Data urls not supported in this context");
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}
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this.eventHook
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.dispatchEvent("page:saved", pageName)
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.then(() => {
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return this.eventHook.dispatchEvent("page:index_text", {
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name: pageName,
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text,
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});
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})
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.catch((e) => {
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console.error("Error dispatching page:saved event", e);
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});
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}
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return newMeta;
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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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async deleteFile(name: string): Promise<void> {
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if (name.endsWith(".md")) {
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const pageName = name.substring(0, name.length - 3);
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await this.eventHook.dispatchEvent("page:deleted", pageName);
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}
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return this.wrapped.deleteFile(name);
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}
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}
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