feat(pda): persist and batch cabinet picking

stores/picking.js

@@ -17,12 +17,70 @@ function createInitialState() {
 
 let state = createInitialState()
 
+const STORAGE_PREFIX = 'pda-picking-draft'
+
+function storageAvailable() {
+	return typeof uni !== 'undefined' && typeof uni.getStorageSync === 'function' && typeof uni.setStorageSync === 'function'
+}
+
+function identityValue(identity = {}) {
+	const operatorId = identity.operatorId ?? identity.accountId ?? identity.userId
+	const taskId = identity.taskId ?? identity.inboundId
+	const containerNo = identity.containerNo ?? identity.boxNo
+	return { operatorId: operatorId == null ? '' : String(operatorId), taskId: taskId == null ? '' : String(taskId), containerNo: containerNo == null ? '' : String(containerNo) }
+}
+
+export function getPickingDraftKey(identity = {}) {
+	const value = identityValue(identity)
+	if (!value.operatorId || !value.taskId || !value.containerNo) return ''
+	return `${STORAGE_PREFIX}:${encodeURIComponent(value.operatorId)}:${encodeURIComponent(value.taskId)}:${encodeURIComponent(value.containerNo)}`
+}
+
+function draftPayload(nextState, identity) {
+	const value = identityValue(identity)
+	return {
+		operatorId: value.operatorId,
+		taskId: value.taskId,
+		containerNo: value.containerNo,
+		warehouseId: identity.warehouseId ?? null,
+		currentBoxIndex: nextState.currentBoxIndex,
+		itemStates: nextState.itemStates,
+		partialQuantities: nextState.partialQuantities,
+		boxDrafts: nextState.boxDrafts,
+		completedBoxes: nextState.completedBoxes,
+		scanHistory: nextState.scanHistory,
+		updatedAt: new Date().toISOString()
+	}
+}
+
 export function getPickingSession() {
 	return clone(state)
 }
 
-export function savePickingSession(nextState) {
+export function savePickingSession(nextState, identity = {}) {
 	state = clone(nextState)
+	const key = getPickingDraftKey(identity)
+	if (key && storageAvailable()) uni.setStorageSync(key, draftPayload(state, identity))
+}
+
+export function restorePickingSession(identity = {}) {
+	const key = getPickingDraftKey(identity)
+	if (!key || !storageAvailable()) return null
+	const saved = uni.getStorageSync(key)
+	if (!saved || saved.operatorId !== identityValue(identity).operatorId || saved.taskId !== identityValue(identity).taskId || saved.containerNo !== identityValue(identity).containerNo) return null
+	const restored = { ...state, ...clone(saved) }
+	delete restored.operatorId
+	delete restored.taskId
+	delete restored.containerNo
+	delete restored.warehouseId
+	delete restored.updatedAt
+	state = restored
+	return clone(state)
+}
+
+export function clearPickingDraft(identity = {}) {
+	const key = getPickingDraftKey(identity)
+	if (key && typeof uni !== 'undefined' && typeof uni.removeStorageSync === 'function') uni.removeStorageSync(key)
 }
 
 export function resetPickingSession() {