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import { createPubSub } from "create-pubsub";
import throttle from "throttleit";
import { addLogEntry } from "./logEntries";
import { defaultSettings } from "./settings";
import type {
ImageSearchResults,
SearchResults,
SearchState,
TextGenerationState,
TextSearchResults,
} from "./types";
function createLocalStoragePubSub<T>(localStorageKey: string, defaultValue: T) {
const localStorageValue = localStorage.getItem(localStorageKey);
const localStoragePubSub = createPubSub(
localStorageValue ? (JSON.parse(localStorageValue) as T) : defaultValue,
);
const [, onValueChange] = localStoragePubSub;
onValueChange((value) =>
localStorage.setItem(localStorageKey, JSON.stringify(value)),
);
return localStoragePubSub;
}
const querySuggestionsPubSub = createLocalStoragePubSub<string[]>(
"querySuggestions",
[],
);
const lastSearchTokenHashPubSub = createLocalStoragePubSub(
"lastSearchTokenHash",
"",
);
export const [updateLastSearchTokenHash, , getLastSearchTokenHash] =
lastSearchTokenHashPubSub;
export const [updateQuerySuggestions, , getQuerySuggestions] =
querySuggestionsPubSub;
export const queryPubSub = createPubSub(
new URLSearchParams(self.location.search).get("q") ?? "",
);
export const [, , getQuery] = queryPubSub;
export const responsePubSub = createPubSub("");
export const updateResponse = throttle(responsePubSub[0], 1000 / 12);
export const [updateSearchPromise, , getSearchPromise] = createPubSub<
Promise<SearchResults>
>(Promise.resolve({ textResults: [], imageResults: [] }));
export const textGenerationStatePubSub =
createPubSub<TextGenerationState>("idle");
export const [updateTextGenerationState, , getTextGenerationState] =
textGenerationStatePubSub;
const [, listenToTextGenerationStateChanges] = textGenerationStatePubSub;
listenToTextGenerationStateChanges((textGenerationState) => {
addLogEntry(`Text generation state changed to '${textGenerationState}'`);
});
export const modelLoadingProgressPubSub = createPubSub(0);
export const [updateModelLoadingProgress] = modelLoadingProgressPubSub;
export const settingsPubSub = createLocalStoragePubSub(
"settings",
defaultSettings,
);
export const [, listenToSettingsChanges, getSettings] = settingsPubSub;
export const modelSizeInMegabytesPubSub = createPubSub(0);
export const [updateModelSizeInMegabytes] = modelSizeInMegabytesPubSub;
export const textSearchStatePubSub = createPubSub<SearchState>("idle");
export const imageSearchStatePubSub = createPubSub<SearchState>("idle");
export const [updateTextSearchState] = textSearchStatePubSub;
const [, subscribeToTextSearchState] = textSearchStatePubSub;
subscribeToTextSearchState((textSearchState) => {
addLogEntry(`Text search state changed to '${textSearchState}'`);
});
export const [updateImageSearchState] = imageSearchStatePubSub;
const [, subscribeToImageSearchState] = imageSearchStatePubSub;
subscribeToImageSearchState((imageSearchState) => {
addLogEntry(`Image search state changed to '${imageSearchState}'`);
});
export const textSearchResultsPubSub = createPubSub<TextSearchResults>([]);
export const imageSearchResultsPubSub = createPubSub<ImageSearchResults>([]);
export const [updateTextSearchResults, , getTextSearchResults] =
textSearchResultsPubSub;
export const [updateImageSearchResults] = imageSearchResultsPubSub;
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