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silverbullet/webapp/hooks/completer.ts

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import { Hook, Manifest } from "../../plugos/types";
import { System } from "../../plugos/system";
import { CompletionResult } from "@codemirror/autocomplete";
export type CompleterHookT = {
isCompleter?: boolean;
};
export class CompleterHook implements Hook<CompleterHookT> {
private system?: System<CompleterHookT>;
public async plugCompleter(): Promise<CompletionResult | null> {
let completerPromises = [];
// TODO: Can be optimized (cache all functions)
for (const plug of this.system!.loadedPlugs.values()) {
if (!plug.manifest) {
continue;
}
for (const [functionName, functionDef] of Object.entries(
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plug.manifest.functions
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)) {
if (functionDef.isCompleter) {
completerPromises.push(plug.invoke(functionName, []));
}
}
}
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let actualResult = null;
for (const result of await Promise.all(completerPromises)) {
if (result) {
if (actualResult) {
console.error(
"Got completion results from multiple sources, cannot deal with that"
);
return null;
}
actualResult = result;
}
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}
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return actualResult;
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}
apply(system: System<CompleterHookT>): void {
this.system = system;
}
validateManifest(manifest: Manifest<CompleterHookT>): string[] {
return [];
}
}