const catchAsync = require('../../globalErrorHandler/catchAsync')
const warehouseItemService = require('./warehouseItemService')

// ─── ITEMS ────────────────────────────────────────────────────────────────────

exports.createItem = catchAsync(async (req, res, next) => {
    const item = await warehouseItemService.createItem(req.body)
    res.status(201).json({ status: 'success', data: item })
})

exports.listItems = catchAsync(async (req, res, next) => {
    const result = await warehouseItemService.listItems(req.query)
    res.status(200).json({ status: 'success', ...result })
})

exports.getItem = catchAsync(async (req, res, next) => {
    const item = await warehouseItemService.getItem(req.params.itemId)
    res.status(200).json({ status: 'success', data: item })
})

exports.updateItem = catchAsync(async (req, res, next) => {
    const item = await warehouseItemService.updateItem(req.params.itemId, req.body)
    res.status(200).json({ status: 'success', data: item })
})

exports.deleteItem = catchAsync(async (req, res, next) => {
    await warehouseItemService.deleteItem(req.params.itemId)
    res.status(200).json({ status: 'success', data: null })
})

// ─── TRANSACTIONS ─────────────────────────────────────────────────────────────

exports.createTransaction = catchAsync(async (req, res, next) => {
    const transaction = await warehouseItemService.createTransaction(req.body, req.user)
    res.status(201).json({ status: 'success', data: transaction })
})

exports.listTransactions = catchAsync(async (req, res, next) => {
    const result = await warehouseItemService.listTransactions(req.query)
    res.status(200).json({ status: 'success', ...result })
})

exports.deleteTransaction = catchAsync(async (req, res, next) => {
    await warehouseItemService.deleteTransaction(req.params.transactionId)
    res.status(200).json({ status: 'success', data: null })
})

// ─── STOCK ────────────────────────────────────────────────────────────────────

exports.getStockByItem = catchAsync(async (req, res, next) => {
    const result = await warehouseItemService.getStockByItem(req.params.itemId)
    res.status(200).json({ status: 'success', data: result })
})

exports.getStockByWarehouse = catchAsync(async (req, res, next) => {
    const stocks = await warehouseItemService.getStockByWarehouse(req.params.warehouseId)
    res.status(200).json({ status: 'success', results: stocks.length, data: stocks })
})

exports.getTotalStock = catchAsync(async (req, res, next) => {
    const result = await warehouseItemService.getTotalStock()
    res.status(200).json({ status: 'success', results: result.length, data: result })
})