import type { Reducer } from '@reduxjs/toolkit'; import { Map as ImmutableMap } from 'immutable'; import { followAccountSuccess, unfollowAccountSuccess, importAccounts, revealAccount, } from 'flavours/glitch/actions/accounts_typed'; import type { ApiAccountJSON } from 'flavours/glitch/api_types/accounts'; import { me } from 'flavours/glitch/initial_state'; import type { Account } from 'flavours/glitch/models/account'; import { createAccountFromServerJSON } from 'flavours/glitch/models/account'; const initialState = ImmutableMap(); const normalizeAccount = ( state: typeof initialState, account: ApiAccountJSON, ) => { return state.set( account.id, createAccountFromServerJSON(account).set( 'hidden', state.get(account.id)?.hidden === false ? false : account.limited || false, ), ); }; const normalizeAccounts = ( state: typeof initialState, accounts: ApiAccountJSON[], ) => { accounts.forEach((account) => { state = normalizeAccount(state, account); }); return state; }; function getCurrentUser() { if (!me) throw new Error( 'No current user (me) defined when calling `accountsReducer`', ); return me; } export const accountsReducer: Reducer = ( state = initialState, action, ) => { if (revealAccount.match(action)) return state.setIn([action.payload.id, 'hidden'], false); else if (importAccounts.match(action)) return normalizeAccounts(state, action.payload.accounts); else if (followAccountSuccess.match(action)) { return state .update( action.payload.relationship.id, (account) => account?.update('followers_count', (n) => n + 1), ) .update( getCurrentUser(), (account) => account?.update('following_count', (n) => n + 1), ); } else if (unfollowAccountSuccess.match(action)) return state .update( action.payload.relationship.id, (account) => account?.update('followers_count', (n) => Math.max(0, n - 1)), ) .update( getCurrentUser(), (account) => account?.update('following_count', (n) => Math.max(0, n - 1)), ); else return state; };