state.js•1.96 kB
// state.js - Centralized state management for MARM chatbot
// ===== Centralized State Management for MARM Chatbot =====
const STATE_KEY = 'marm-current-state';
// --- Application State (Private) ---
const state = {
isMarmActive: false,
currentSessionId: null
};
// --- State Getter ---
export function getState() {
return { ...state };
}
// --- State Persistence ---
function persistState() {
try {
localStorage.setItem(STATE_KEY, JSON.stringify(state));
} catch (e) {
console.warn('Failed to persist state:', e);
}
}
// --- State Restoration ---
export function restoreState() {
try {
const saved = localStorage.getItem(STATE_KEY);
if (saved) {
const parsedState = JSON.parse(saved);
try {
validateState(parsedState);
Object.assign(state, parsedState);
} catch (validationError) {
console.warn('Saved state failed validation, resetting to defaults:', validationError);
resetToDefaults();
}
}
} catch (e) {
console.warn('Failed to restore state, using defaults:', e);
resetToDefaults();
}
}
// --- State Reset ---
function resetToDefaults() {
state.isMarmActive = false;
state.currentSessionId = null;
persistState();
}
restoreState();
// --- State Validation ---
export function validateState(newState) {
if (typeof newState.isMarmActive !== 'boolean') {
throw new Error('isMarmActive must be boolean');
}
if (newState.currentSessionId && typeof newState.currentSessionId !== 'string') {
throw new Error('currentSessionId must be string or null');
}
return true;
}
// ===== State Management Functions =====
export function updateState(updates) {
const newState = { ...state, ...updates };
validateState(newState);
Object.assign(state, newState);
persistState();
return { ...state };
}
export function resetState() {
return updateState({
isMarmActive: false,
currentSessionId: null
});
}