grocy/services/StockService.php

580 lines
19 KiB
PHP

<?php
namespace Grocy\Services;
class StockService extends BaseService
{
const TRANSACTION_TYPE_PURCHASE = 'purchase';
const TRANSACTION_TYPE_CONSUME = 'consume';
const TRANSACTION_TYPE_INVENTORY_CORRECTION = 'inventory-correction';
const TRANSACTION_TYPE_PRODUCT_OPENED = 'product-opened';
public function GetCurrentStock($includeNotInStockButMissingProducts = false)
{
$sql = 'SELECT * FROM stock_current';
if ($includeNotInStockButMissingProducts)
{
$sql = 'SELECT * FROM stock_current WHERE best_before_date IS NOT NULL';
}
return $this->DatabaseService->ExecuteDbQuery($sql)->fetchAll(\PDO::FETCH_OBJ);
}
public function GetCurrentStockLocations()
{
$sql = 'SELECT * FROM stock_current_locations';
return $this->DatabaseService->ExecuteDbQuery($sql)->fetchAll(\PDO::FETCH_OBJ);
}
public function GetCurrentProductPrices()
{
$sql = 'SELECT * FROM products_current_price';
return $this->DatabaseService->ExecuteDbQuery($sql)->fetchAll(\PDO::FETCH_OBJ);
}
public function GetMissingProducts()
{
$sql = 'SELECT * FROM stock_missing_products';
return $this->DatabaseService->ExecuteDbQuery($sql)->fetchAll(\PDO::FETCH_OBJ);
}
public function GetProductIdFromBarcode(string $barcode)
{
$potentialProduct = $this->Database->products()->where('barcode LIKE :1', '%' . $barcode . '%')->limit(1)->fetch();
if ($potentialProduct === null)
{
throw new \Exception("No product with barcode $barcode found");
}
return intval($potentialProduct->id);
}
public function GetExpiringProducts(int $days = 5, bool $excludeExpired = false)
{
$currentStock = $this->GetCurrentStock(true);
$currentStock = FindAllObjectsInArrayByPropertyValue($currentStock, 'best_before_date', date('Y-m-d', strtotime("+$days days")), '<');
if ($excludeExpired)
{
$currentStock = FindAllObjectsInArrayByPropertyValue($currentStock, 'best_before_date', date('Y-m-d', strtotime('now')), '>');
}
return $currentStock;
}
public function GetProductDetails(int $productId)
{
if (!$this->ProductExists($productId))
{
throw new \Exception('Product does not exist');
}
$product = $this->Database->products($productId);
$productStockAmount = $this->Database->stock()->where('product_id', $productId)->sum('amount');
$productStockAmountOpened = $this->Database->stock()->where('product_id = :1 AND open = 1', $productId)->sum('amount');
$productLastPurchased = $this->Database->stock_log()->where('product_id', $productId)->where('transaction_type', self::TRANSACTION_TYPE_PURCHASE)->where('undone', 0)->max('purchased_date');
$productLastUsed = $this->Database->stock_log()->where('product_id', $productId)->where('transaction_type', self::TRANSACTION_TYPE_CONSUME)->where('undone', 0)->max('used_date');
$nextBestBeforeDate = $this->Database->stock()->where('product_id', $productId)->min('best_before_date');
$quPurchase = $this->Database->quantity_units($product->qu_id_purchase);
$quStock = $this->Database->quantity_units($product->qu_id_stock);
$location = $this->Database->locations($product->location_id);
$lastPrice = null;
$lastLogRow = $this->Database->stock_log()->where('product_id = :1 AND transaction_type = :2 AND undone = 0', $productId, self::TRANSACTION_TYPE_PURCHASE)->orderBy('row_created_timestamp', 'DESC')->limit(1)->fetch();
if ($lastLogRow !== null && !empty($lastLogRow))
{
$lastPrice = $lastLogRow->price;
}
return array(
'product' => $product,
'last_purchased' => $productLastPurchased,
'last_used' => $productLastUsed,
'stock_amount' => $productStockAmount,
'stock_amount_opened' => $productStockAmountOpened,
'quantity_unit_purchase' => $quPurchase,
'quantity_unit_stock' => $quStock,
'last_price' => $lastPrice,
'next_best_before_date' => $nextBestBeforeDate,
'location' => $location
);
}
public function GetProductPriceHistory(int $productId)
{
if (!$this->ProductExists($productId))
{
throw new \Exception('Product does not exist');
}
$returnData = array();
$rows = $this->Database->stock_log()->where('product_id = :1 AND transaction_type = :2 AND undone = 0', $productId, self::TRANSACTION_TYPE_PURCHASE)->whereNOT('price', null)->orderBy('purchased_date', 'DESC');
foreach ($rows as $row)
{
$returnData[] = array(
'date' => $row->purchased_date,
'price' => $row->price
);
}
return $returnData;
}
public function GetProductStockEntries($productId, $excludeOpened = false)
{
// In order of next use:
// First expiring first, then first in first out
if ($excludeOpened)
{
return $this->Database->stock()->where('product_id = :1 AND open = 0', $productId)->orderBy('best_before_date', 'ASC')->orderBy('purchased_date', 'ASC')->fetchAll();
}
else
{
return $this->Database->stock()->where('product_id', $productId)->orderBy('best_before_date', 'ASC')->orderBy('purchased_date', 'ASC')->fetchAll();
}
}
public function AddProduct(int $productId, float $amount, string $bestBeforeDate, $transactionType, $purchasedDate, $price, $locationId = null)
{
if (!$this->ProductExists($productId))
{
throw new \Exception('Product does not exist');
}
// Tare weight handling
// The given amount is the new total amount including the container weight (gross)
// The amount to be posted needs to be the given amount - stock amount - tare weight
$productDetails = (object)$this->GetProductDetails($productId);
if ($productDetails->product->enable_tare_weight_handling == 1)
{
if ($amount <= $productDetails->product->tare_weight + $productDetails->stock_amount)
{
throw new \Exception('The amount cannot be lower or equal than the defined tare weight + current stock amount');
}
$amount = $amount - $productDetails->stock_amount - $productDetails->product->tare_weight;
}
if ($transactionType === self::TRANSACTION_TYPE_PURCHASE || $transactionType === self::TRANSACTION_TYPE_INVENTORY_CORRECTION)
{
$stockId = uniqid();
$logRow = $this->Database->stock_log()->createRow(array(
'product_id' => $productId,
'amount' => $amount,
'best_before_date' => $bestBeforeDate,
'purchased_date' => $purchasedDate,
'stock_id' => $stockId,
'transaction_type' => $transactionType,
'price' => $price,
'location_id' => $locationId
));
$logRow->save();
$returnValue = $this->Database->lastInsertId();
$stockRow = $this->Database->stock()->createRow(array(
'product_id' => $productId,
'amount' => $amount,
'best_before_date' => $bestBeforeDate,
'purchased_date' => $purchasedDate,
'stock_id' => $stockId,
'price' => $price,
'location_id' => $locationId
));
$stockRow->save();
return $returnValue;
}
else
{
throw new \Exception("Transaction type $transactionType is not valid (StockService.AddProduct)");
}
}
public function ConsumeProduct(int $productId, float $amount, bool $spoiled, $transactionType, $specificStockEntryId = 'default', $recipeId = null)
{
if (!$this->ProductExists($productId))
{
throw new \Exception('Product does not exist');
}
// Tare weight handling
// The given amount is the new total amount including the container weight (gross)
// The amount to be posted needs to be the absolute value of the given amount - stock amount - tare weight
$productDetails = (object)$this->GetProductDetails($productId);
if ($productDetails->product->enable_tare_weight_handling == 1)
{
if ($amount < $productDetails->product->tare_weight)
{
throw new \Exception('The amount cannot be lower than the defined tare weight');
}
$amount = abs($amount - $productDetails->stock_amount - $productDetails->product->tare_weight);
}
if ($transactionType === self::TRANSACTION_TYPE_CONSUME || $transactionType === self::TRANSACTION_TYPE_INVENTORY_CORRECTION)
{
$productStockAmount = $this->Database->stock()->where('product_id', $productId)->sum('amount');
$potentialStockEntries = $this->GetProductStockEntries($productId);
if ($amount > $productStockAmount)
{
throw new \Exception('Amount to be consumed cannot be > current stock amount');
}
if ($specificStockEntryId !== 'default')
{
$potentialStockEntries = FindAllObjectsInArrayByPropertyValue($potentialStockEntries, 'stock_id', $specificStockEntryId);
}
foreach ($potentialStockEntries as $stockEntry)
{
if ($amount == 0)
{
break;
}
if ($amount >= $stockEntry->amount) // Take the whole stock entry
{
$logRow = $this->Database->stock_log()->createRow(array(
'product_id' => $stockEntry->product_id,
'amount' => $stockEntry->amount * -1,
'best_before_date' => $stockEntry->best_before_date,
'purchased_date' => $stockEntry->purchased_date,
'used_date' => date('Y-m-d'),
'spoiled' => $spoiled,
'stock_id' => $stockEntry->stock_id,
'transaction_type' => $transactionType,
'price' => $stockEntry->price,
'opened_date' => $stockEntry->opened_date,
'recipe_id' => $recipeId
));
$logRow->save();
$stockEntry->delete();
$amount -= $stockEntry->amount;
}
else // Stock entry amount is > than needed amount -> split the stock entry resp. update the amount
{
$restStockAmount = $stockEntry->amount - $amount;
$logRow = $this->Database->stock_log()->createRow(array(
'product_id' => $stockEntry->product_id,
'amount' => $amount * -1,
'best_before_date' => $stockEntry->best_before_date,
'purchased_date' => $stockEntry->purchased_date,
'used_date' => date('Y-m-d'),
'spoiled' => $spoiled,
'stock_id' => $stockEntry->stock_id,
'transaction_type' => $transactionType,
'price' => $stockEntry->price,
'opened_date' => $stockEntry->opened_date,
'recipe_id' => $recipeId
));
$logRow->save();
$stockEntry->update(array(
'amount' => $restStockAmount
));
$amount = 0;
}
}
return $this->Database->lastInsertId();
}
else
{
throw new Exception("Transaction type $transactionType is not valid (StockService.ConsumeProduct)");
}
}
public function InventoryProduct(int $productId, int $newAmount, string $bestBeforeDate)
{
if (!$this->ProductExists($productId))
{
throw new \Exception('Product does not exist');
}
$productDetails = (object)$this->GetProductDetails($productId);
// Tare weight handling
// The given amount is the new total amount including the container weight (gross)
// So assume that the amount in stock is the amount also including the container weight
$containerWeight = 0;
if ($productDetails->product->enable_tare_weight_handling == 1)
{
$containerWeight = $productDetails->product->tare_weight;
}
if ($newAmount > $productDetails->stock_amount + $containerWeight)
{
$bookingAmount = $newAmount - $productDetails->stock_amount;
if ($productDetails->product->enable_tare_weight_handling == 1)
{
$bookingAmount = $newAmount;
}
$this->AddProduct($productId, $bookingAmount, $bestBeforeDate, self::TRANSACTION_TYPE_INVENTORY_CORRECTION, date('Y-m-d'), $productDetails->last_price);
}
else if ($newAmount < $productDetails->stock_amount + $containerWeight)
{
$bookingAmount = $productDetails->stock_amount - $newAmount;
if ($productDetails->product->enable_tare_weight_handling == 1)
{
$bookingAmount = $newAmount;
}
$this->ConsumeProduct($productId, $bookingAmount, false, self::TRANSACTION_TYPE_INVENTORY_CORRECTION);
}
return $this->Database->lastInsertId();
}
public function OpenProduct(int $productId, float $amount, $specificStockEntryId = 'default')
{
if (!$this->ProductExists($productId))
{
throw new \Exception('Product does not exist');
}
$productStockAmountUnopened = $this->Database->stock()->where('product_id = :1 AND open = 0', $productId)->sum('amount');
$potentialStockEntries = $this->GetProductStockEntries($productId, true);
$product = $this->Database->products($productId);
if ($amount > $productStockAmountUnopened)
{
throw new \Exception('Amount to be opened cannot be > current unopened stock amount');
}
if ($specificStockEntryId !== 'default')
{
$potentialStockEntries = FindAllObjectsInArrayByPropertyValue($potentialStockEntries, 'stock_id', $specificStockEntryId);
}
foreach ($potentialStockEntries as $stockEntry)
{
if ($amount == 0)
{
break;
}
$newBestBeforeDate = $stockEntry->best_before_date;
if ($product->default_best_before_days_after_open > 0)
{
$newBestBeforeDate = date("Y-m-d", strtotime('+' . $product->default_best_before_days_after_open . ' days'));
}
if ($amount >= $stockEntry->amount) // Mark the whole stock entry as opened
{
$logRow = $this->Database->stock_log()->createRow(array(
'product_id' => $stockEntry->product_id,
'amount' => $stockEntry->amount,
'best_before_date' => $stockEntry->best_before_date,
'purchased_date' => $stockEntry->purchased_date,
'stock_id' => $stockEntry->stock_id,
'transaction_type' => self::TRANSACTION_TYPE_PRODUCT_OPENED,
'price' => $stockEntry->price,
'opened_date' => date('Y-m-d')
));
$logRow->save();
$stockEntry->update(array(
'open' => 1,
'opened_date' => date('Y-m-d'),
'best_before_date' => $newBestBeforeDate
));
$amount -= $stockEntry->amount;
}
else // Stock entry amount is > than needed amount -> split the stock entry
{
$restStockAmount = $stockEntry->amount - $amount;
$newStockRow = $this->Database->stock()->createRow(array(
'product_id' => $stockEntry->product_id,
'amount' => $restStockAmount,
'best_before_date' => $stockEntry->best_before_date,
'purchased_date' => $stockEntry->purchased_date,
'stock_id' => $stockEntry->stock_id,
'price' => $stockEntry->price
));
$newStockRow->save();
$logRow = $this->Database->stock_log()->createRow(array(
'product_id' => $stockEntry->product_id,
'amount' => $amount,
'best_before_date' => $stockEntry->best_before_date,
'purchased_date' => $stockEntry->purchased_date,
'stock_id' => $stockEntry->stock_id,
'transaction_type' => self::TRANSACTION_TYPE_PRODUCT_OPENED,
'price' => $stockEntry->price,
'opened_date' => date('Y-m-d')
));
$logRow->save();
$stockEntry->update(array(
'amount' => $amount,
'open' => 1,
'opened_date' => date('Y-m-d'),
'best_before_date' => $newBestBeforeDate
));
$amount = 0;
}
}
return $this->Database->lastInsertId();
}
public function AddMissingProductsToShoppingList()
{
$missingProducts = $this->GetMissingProducts();
foreach ($missingProducts as $missingProduct)
{
$product = $this->Database->products()->where('id', $missingProduct->id)->fetch();
$amountToAdd = ceil($missingProduct->amount_missing / $product->qu_factor_purchase_to_stock);
$alreadyExistingEntry = $this->Database->shopping_list()->where('product_id', $missingProduct->id)->fetch();
if ($alreadyExistingEntry) // Update
{
if ($alreadyExistingEntry->amount < $amountToAdd)
{
$alreadyExistingEntry->update(array(
'amount' => $amountToAdd
));
}
}
else // Insert
{
$shoppinglistRow = $this->Database->shopping_list()->createRow(array(
'product_id' => $missingProduct->id,
'amount' => $amountToAdd
));
$shoppinglistRow->save();
}
}
}
public function ClearShoppingList()
{
$this->Database->shopping_list()->delete();
}
private function ProductExists($productId)
{
$productRow = $this->Database->products()->where('id = :1', $productId)->fetch();
return $productRow !== null;
}
private function LoadBarcodeLookupPlugin()
{
$pluginName = defined('GROCY_STOCK_BARCODE_LOOKUP_PLUGIN') ? GROCY_STOCK_BARCODE_LOOKUP_PLUGIN : '';
if (empty($pluginName))
{
throw new \Exception('No barcode lookup plugin defined');
}
$path = GROCY_DATAPATH . "/plugins/$pluginName.php";
if (file_exists($path))
{
require_once $path;
return new $pluginName($this->Database->locations()->fetchAll(), $this->Database->quantity_units()->fetchAll());
}
else
{
throw new \Exception("Plugin $pluginName was not found");
}
}
public function ExternalBarcodeLookup($barcode, $addFoundProduct)
{
$plugin = $this->LoadBarcodeLookupPlugin();
$pluginOutput = $plugin->Lookup($barcode);
if ($pluginOutput !== null) // Lookup was successful
{
if ($addFoundProduct === true)
{
// Add product to database and include new product id in output
$newRow = $this->Database->products()->createRow($pluginOutput);
$newRow->save();
$pluginOutput['id'] = $newRow->id;
}
}
return $pluginOutput;
}
public function UndoBooking($bookingId)
{
$logRow = $this->Database->stock_log()->where('id = :1 AND undone = 0', $bookingId)->fetch();
if ($logRow == null)
{
throw new \Exception('Booking does not exist or was already undone');
}
$hasSubsequentBookings = $this->Database->stock_log()->where('stock_id = :1 AND id != :2 AND id > :2', $logRow->stock_id, $logRow->id)->count() > 0;
if ($hasSubsequentBookings)
{
throw new \Exception('Booking has subsequent dependent bookings, undo not possible');
}
if ($logRow->transaction_type === self::TRANSACTION_TYPE_PURCHASE || ($logRow->transaction_type === self::TRANSACTION_TYPE_INVENTORY_CORRECTION && $logRow->amount > 0))
{
// Remove corresponding stock entry
$stockRows = $this->Database->stock()->where('stock_id', $logRow->stock_id);
$stockRows->delete();
// Update log entry
$logRow->update(array(
'undone' => 1,
'undone_timestamp' => date('Y-m-d H:i:s')
));
}
elseif ($logRow->transaction_type === self::TRANSACTION_TYPE_CONSUME || ($logRow->transaction_type === self::TRANSACTION_TYPE_INVENTORY_CORRECTION && $logRow->amount < 0))
{
// Add corresponding amount back to stock
$stockRow = $this->Database->stock()->createRow(array(
'product_id' => $logRow->product_id,
'amount' => $logRow->amount * -1,
'best_before_date' => $logRow->best_before_date,
'purchased_date' => $logRow->purchased_date,
'stock_id' => $logRow->stock_id,
'price' => $logRow->price,
'opened_date' => $logRow->opened_date
));
$stockRow->save();
// Update log entry
$logRow->update(array(
'undone' => 1,
'undone_timestamp' => date('Y-m-d H:i:s')
));
}
elseif ($logRow->transaction_type === self::TRANSACTION_TYPE_PRODUCT_OPENED)
{
// Remove opened flag from corresponding log entry
$stockRows = $this->Database->stock()->where('stock_id = :1 AND amount = :2 AND purchased_date = :3', $logRow->stock_id, $logRow->amount, $logRow->purchased_date)->limit(1);
$stockRows->update(array(
'open' => 0,
'opened_date' => null
));
// Update log entry
$logRow->update(array(
'undone' => 1,
'undone_timestamp' => date('Y-m-d H:i:s')
));
}
else
{
throw new \Exception('This booking cannot be undone');
}
}
}