57eb540b6e
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Proof: Liquidity manager must persist live deposit handles and funding observations so the active NEAR Intents proof can reach credited inventory and real execution. Assumptions: Services commonly mutate store.getState() in place before calling setState, so the state store must preserve same-reference updates instead of clearing them. Still fake: Strategy and executor remain disarmed, no live inventory is credited yet, and no live mainnet quote response has been sent.
53 lines
1.4 KiB
JavaScript
53 lines
1.4 KiB
JavaScript
import fs from 'node:fs';
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import path from 'node:path';
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export function createJsonStateStore({ stateDir, fileName, initialState = {} }) {
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if (!stateDir) throw new Error('Missing stateDir');
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if (!fileName) throw new Error('Missing fileName');
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fs.mkdirSync(stateDir, { recursive: true });
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const filePath = path.join(stateDir, fileName);
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const state = loadState(filePath, initialState);
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return {
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getState() {
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return state;
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},
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setState(nextState) {
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replaceState(state, nextState);
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persistState(filePath, state);
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return state;
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},
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update(mutator) {
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const nextState = mutator(structuredClone(state));
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replaceState(state, nextState);
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persistState(filePath, state);
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return state;
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},
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};
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}
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function replaceState(target, nextState) {
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const source = nextState === target ? structuredClone(nextState) : (nextState || {});
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for (const key of Object.keys(target)) delete target[key];
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Object.assign(target, source);
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}
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function loadState(filePath, initialState) {
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if (!fs.existsSync(filePath)) return structuredClone(initialState);
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try {
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return {
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...structuredClone(initialState),
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...JSON.parse(fs.readFileSync(filePath, 'utf8')),
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};
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} catch {
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return structuredClone(initialState);
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}
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}
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function persistState(filePath, state) {
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const tempPath = `${filePath}.tmp`;
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fs.writeFileSync(tempPath, JSON.stringify(state, null, 2));
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fs.renameSync(tempPath, filePath);
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}
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