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// Copyright (C) 2024 Vaughn Nugent
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as
// published by the Free Software Foundation, either version 3 of the
// License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <https://www.gnu.org/licenses/>.
import { cloneDeep } from "lodash";
import { Endpoints } from "./server-api";
import { type FeatureApi, type BgRuntime, type IFeatureExport, optionsOnly, exportForegroundApi } from "./framework";
import { type AppSettings } from "./settings";
import { useTagFilter } from "./tagfilter-api";
import type { NostrRelay, EncryptionRequest, NostrEvent } from './types';
/**
* The NostrApi is the foreground api for nostr events via
* the background script.
*/
export interface NostrApi extends FeatureApi {
getRelays: () => Promise<NostrRelay[]>;
signEvent: (event: NostrEvent) => Promise<NostrEvent | undefined>;
setRelay: (relay: NostrRelay) => Promise<NostrRelay | undefined>;
nip04Encrypt: (data: EncryptionRequest) => Promise<string>;
nip04Decrypt: (data: EncryptionRequest) => Promise<string>;
}
export const useNostrApi = (): IFeatureExport<AppSettings, NostrApi> => {
return{
background: ({ state }: BgRuntime<AppSettings>) =>{
const { execRequest } = state.useServerApi();
const { filterTags } = useTagFilter(state)
return {
getRelays: async (): Promise<NostrRelay[]> => {
//Get preferred relays for the current user
const [...relays] = await execRequest(Endpoints.GetRelays)
return relays;
},
signEvent: async (req: NostrEvent): Promise<NostrEvent | undefined> => {
//Store copy to prevent mutation
req = cloneDeep(req)
//If tag filter is enabled, filter before continuing
if(state.currentConfig.value.tagFilter){
await filterTags(req)
}
//Sign the event
const event = await execRequest(Endpoints.SignEvent, req);
return event;
},
nip04Encrypt: async (data: EncryptionRequest): Promise<string> => {
const message: EncryptionRequest = {
content: data.content,
KeyId: data.KeyId,
pubkey: data.pubkey
}
return execRequest(Endpoints.Encrypt, message);
},
nip04Decrypt: (data: EncryptionRequest): Promise<string> => {
const message: EncryptionRequest = {
content: data.content,
KeyId: data.KeyId,
pubkey: data.pubkey
}
return execRequest(Endpoints.Decrypt, message);
},
setRelay: optionsOnly((relay: NostrRelay): Promise<NostrRelay | undefined> => {
return execRequest(Endpoints.SetRelay, relay)
}),
}
},
foreground: exportForegroundApi([
'getRelays',
'signEvent',
'setRelay',
'nip04Encrypt',
'nip04Decrypt'
])
}
}
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