jan/web/hooks/useModels.ts

62 lines
1.6 KiB
TypeScript

import { useCallback, useEffect } from 'react'
import {
ExtensionTypeEnum,
Model,
ModelEvent,
ModelExtension,
events,
ModelManager,
} from '@janhq/core'
import { useSetAtom } from 'jotai'
import { extensionManager } from '@/extension'
import {
configuredModelsAtom,
downloadedModelsAtom,
} from '@/helpers/atoms/Model.atom'
/**
* useModels hook - Handles the state of models
* It fetches the downloaded models, configured models and default model from Model Extension
* and updates the atoms accordingly.
*/
const useModels = () => {
const setDownloadedModels = useSetAtom(downloadedModelsAtom)
const setExtensionModels = useSetAtom(configuredModelsAtom)
const getData = useCallback(() => {
const getDownloadedModels = async () => {
const models = await getModels()
setDownloadedModels(models)
}
const getExtensionModels = async () => {
const models = ModelManager.instance().models.values().toArray()
setExtensionModels(models)
}
// Fetch all data
Promise.all([getDownloadedModels(), getExtensionModels()])
}, [setDownloadedModels, setExtensionModels])
useEffect(() => {
// Try get data on mount
getData()
// Listen for model updates
events.on(ModelEvent.OnModelsUpdate, async () => getData())
return () => {
// Remove listener on unmount
events.off(ModelEvent.OnModelsUpdate, async () => {})
}
}, [getData])
}
const getModels = async (): Promise<Model[]> =>
extensionManager.get<ModelExtension>(ExtensionTypeEnum.Model)?.getModels() ??
[]
export default useModels