import { overseasRequest } from './overseas.js'

const DISPATCH_BASE = '/pda/v1/last-leg/dispatches'
const OUTBOUND_BASE = '/pda/v1/last-leg/outbound-tasks'
const CARGO_DISCARD_BASE = '/pda/v1/last-leg/cargo-discards'

const encoded = (value) => encodeURIComponent(String(value || '').trim())

function asList(value) {
	if (Array.isArray(value)) return value
	if (Array.isArray(value?.records)) return value.records
	if (Array.isArray(value?.items)) return value.items
	return []
}

function count(value) {
	const number = Number(value || 0)
	return Number.isFinite(number) ? Math.max(0, number) : 0
}

export function normalizeDispatchTask(value) {
	return {
		...value,
		taskNo: String(value?.taskNo || ''),
		dispatchNo: String(value?.dispatchNo || ''),
		vehiclePlate: String(value?.vehiclePlate || ''),
		status: String(value?.status || ''),
		canDepart: value?.canDepart === true,
		departBlockReason: String(value?.departBlockReason || ''),
		items: asList(value?.items).map((item) => ({
			...item,
			dispatchItemId: String(item?.dispatchItemId || ''),
			palletNo: String(item?.palletNo || ''),
			destinationWarehouseCode: String(item?.destinationWarehouseCode || ''),
			destinationWarehouseName: String(item?.destinationWarehouseName || ''),
			fbaWarehouseCode: String(item?.fbaWarehouseCode || ''),
			warehouseRouteLabel: String(item?.warehouseRouteLabel || ''),
			scheduledPackages: count(item?.scheduledPackages),
			pickedPackages: count(item?.pickedPackages),
			positions: asList(item?.positions).map((position) => ({
				...position,
				id: String(position?.id || ''),
				availablePackages: count(position?.availablePackages ?? (count(item?.plannedPackages ?? item?.packages ?? item?.packageCount) - count(item?.pickedPackages ?? item?.pickedPackageCount))),
				allocatedPackages: count(position?.allocatedPackages),
				pickedPackages: count(position?.pickedPackages)
			}))
		}))
	}
}

export function normalizeOutboundTask(value) {
	const header = value?.task || value || {}
	return {
		...header,
		taskNo: String(header?.taskNo || ''),
		outboundNo: String(header?.outboundNo || ''),
		status: String(header?.status || ''),
		items: asList(value?.items).map((item) => ({
			...item,
			outboundPalletItemId: String(item?.outboundPalletItemId || ''),
			palletNo: String(item?.palletNo || ''),
			plannedPackages: count(item?.packageCount),
			pickedPackages: count(item?.pickedPackageCount),
			positions: asList(item?.positions).map((position) => ({
				...position,
				inventoryPositionId: String(position?.inventoryPositionId || ''),
				palletNo: String(position?.palletNo || item?.palletNo || ''),
				cartonMark: String(position?.cartonMark || ''),
				skuCode: String(position?.skuCode || position?.sku || ''),
				inboundCode: String(position?.inboundCode || ''),
				availablePackages: count(position?.availablePackages),
				pickedPackages: count(position?.pickedPackages)
			}))
		}))
	}
}

export async function listDispatchTasks(status = '') {
	const suffix = status ? `?status=${encoded(status)}` : ''
	return asList(await overseasRequest('GET', `${DISPATCH_BASE}${suffix}`)).map(normalizeDispatchTask)
}

export async function getDispatchTask(dispatchNo) {
	return normalizeDispatchTask(await overseasRequest('GET', `${DISPATCH_BASE}/${encoded(dispatchNo)}`))
}

export function pickDispatchItem(dispatchNo, dispatchItemId, request) {
	return overseasRequest('POST', `${DISPATCH_BASE}/${encoded(dispatchNo)}/items/${encoded(dispatchItemId)}/pick`, request)
}

export function completeDispatchPicking(dispatchNo, request) {
	return overseasRequest('POST', `${DISPATCH_BASE}/${encoded(dispatchNo)}/complete`, request)
}

export function departDispatch(dispatchNo, request) {
	return overseasRequest('POST', `${DISPATCH_BASE}/${encoded(dispatchNo)}/depart`, request)
}

export async function listOutboundTasks(status = '') {
	const suffix = status ? `?status=${encoded(status)}` : ''
	return asList(await overseasRequest('GET', `${OUTBOUND_BASE}${suffix}`)).map(normalizeOutboundTask)
}

export async function getOutboundTask(taskNo) {
	return normalizeOutboundTask(await overseasRequest('GET', `${OUTBOUND_BASE}/${encoded(taskNo)}`))
}

export function resolveOutboundTask(businessNo) {
	return overseasRequest('GET', `${OUTBOUND_BASE}/resolve/${encoded(businessNo)}`)
}

export function pickOutboundTask(taskNo, request) {
	return overseasRequest('POST', `${OUTBOUND_BASE}/${encoded(taskNo)}/pick`, request)
}

export function pickOutboundPallet(taskNo, palletNo, request) {
	return overseasRequest('POST', `${OUTBOUND_BASE}/${encoded(taskNo)}/pallets/${encoded(palletNo)}/pick`, request)
}

export function outboundPickPayload(item, position, packages) {
	return {
		outboundPalletItemId: item.outboundPalletItemId,
		inventoryPositionId: position.inventoryPositionId,
		packages: Number(packages),
		cartonMarks: position.cartonMark ? [position.cartonMark] : []
	}
}

export function completeOutboundTask(taskNo, request) {
	return overseasRequest('POST', `${OUTBOUND_BASE}/${encoded(taskNo)}/complete`, request)
}

export function normalizeCargoDiscardTask(value) {
	const task = value || {}
	return {
		...task,
		discardNo: String(task?.discardNo || ''),
		palletNo: String(task?.palletNo || ''),
		status: String(task?.status || 'PENDING'),
		skus: asList(task?.skus).map((sku) => ({
			...sku,
			itemId: String(sku?.itemId || ''),
			skuCode: String(sku?.skuCode || ''),
			productName: String(sku?.productName || ''),
			plannedPackages: count(sku?.plannedPackages),
			actualPackages: sku?.actualPackages == null ? null : count(sku.actualPackages),
			status: String(sku?.status || 'PENDING')
		}))
	}
}

export async function listCargoDiscardTasks() {
	return asList(await overseasRequest('GET', CARGO_DISCARD_BASE)).map(normalizeCargoDiscardTask)
}

export async function resolveCargoDiscardPallet(palletNo) {
	return normalizeCargoDiscardTask(await overseasRequest('POST', `${CARGO_DISCARD_BASE}/resolve`, { palletNo }))
}

export async function confirmCargoDiscard(discardNo, palletNo, lines) {
	return normalizeCargoDiscardTask(await overseasRequest('POST', `${CARGO_DISCARD_BASE}/${encoded(discardNo)}/pallets/${encoded(palletNo)}/confirm`, { lines }))
}