import { createBoxes } from '@/data/demo-data.js'
import { createItemStates } from '@/utils/picking-state.js'

function clone(value) {
	return JSON.parse(JSON.stringify(value))
}

function createInitialState() {
	const boxes = createBoxes()
	return {
		boxes,
		currentBoxIndex: 0,
		itemStates: createItemStates(boxes[0].items),
		partialQuantities: {}, boxDrafts: {}, completedBoxes: {}, scanValue: '', scanHistory: []
	}
}

let state = createInitialState()

export function getPickingSession() {
	return clone(state)
}

export function savePickingSession(nextState) {
	state = clone(nextState)
}

export function resetPickingSession() {
	state = createInitialState()
}

export function getPickingOverview() {
	const completedCount = Object.values(state.completedBoxes).filter(Boolean).length
	return { boxes: clone(state.boxes), completedBoxes: { ...state.completedBoxes }, completedCount, pendingBoxCount: state.boxes.length - completedCount }
}