public bool addSKU(sku p_sku)
{
if (skus.Count < capacity)
{
skus.Add(p_sku);
return(true);
}
return(false);
}
/// <summary>
/// Adds items to an order
/// </summary>
/// <param name="p_sku">SKU</param>
public void addSKU(sku p_sku)
{
skus.Add(p_sku);
}
/// <summary>
///
/// </summary>
/// <param name="p_skus">List of SKUs</param>
/// <param name="p_wh">Warehouse object</param>
/// <param name="method">Allocation method: 0 turnover, 1 straight, 2 random</param>
/// <returns>Returns -1 if there is insufficent warehouse space, 0 if there is sufficent warehouse space</returns>
public int allocateSKUs(List <sku> p_skus, warehouse p_wh, int method)
{
int totalstoragelocations = p_wh.totalNumberOfLocations();
if (p_skus.Count > totalstoragelocations)
{
return(-1); //Return insufficient warehouse space
}
//Add warehouse locations to locations list in allocation class
for (int i = 0; i < p_wh.regions.Count; i++)
{
for (int j = 0; j < p_wh.regions[i].pickingaisleedges.Count(); j++)
{
for (int k = 0; k < p_wh.regions[i].pickingaisleedges[j].getOnEdgeNodes().Count(); k++)
{
locations.Add(p_wh.regions[i].pickingaisleedges[j].getOnEdgeNodes()[k]);
}
}
}
//Use a different sku list to sort the skus based on their frequency
//We don't want to change the order of skus in the original list because this might affect the randomized allocation process later
for (int i = 0; i < p_skus.Count; i++)
{
sortedskus.Add(p_skus[i]);
}
if (method == 0)//Turnover based storage allocation
{
sortedskus.Sort((x, y) => y.pickprobability.CompareTo(x.pickprobability));
//Set sku locations based on their frequency to the best locations based on overall ranking
int k = 0;
for (int i = 0; i < sortedskus.Count; i++)
{
bool added = false;
if (p_wh.overallranking[k].node1.s1 != null)
{
if (p_wh.overallranking[k].node1.s1.addSKU(sortedskus[i]))
{
sortedskus[i].location = p_wh.overallranking[k].node1;
added = true;
}
}
if (!added && p_wh.overallranking[k].node1.s2 != null)
{
if (p_wh.overallranking[k].node1.s2.addSKU(sortedskus[i]))
{
sortedskus[i].location = p_wh.overallranking[k].node1;
added = true;
}
}
if (!added)
{
k++;
i--;
}
}
}
else if (method == 1) //Straight allocation (first SKU goes to first location based on location ID)
{
int k = 0;
for (int i = 0; i < sortedskus.Count; i++)
{
bool added = false;
if (locations[k].s1 != null)
{
if (locations[k].s1.addSKU(sortedskus[i]))
{
sortedskus[i].location = locations[k];
added = true;
}
}
if (!added && locations[k].s2 != null)
{
if (locations[k].s2.addSKU(sortedskus[i]))
{
sortedskus[i].location = locations[k];
added = true;
}
}
if (!added)
{
k++;
i--;
}
}
}
else //Randomized allocation, each SKU goes to a random location
{
int n = 2;//Number of SKUs per pick location
while (sortedskus.Count > 0)
{
node tmplocation = locations[rnd.Next(0, locations.Count - 1)];
for (int i = 0; i < n; i++)
{
if (sortedskus.Count > 0)
{
sku tmpsku = sortedskus[rnd.Next(0, sortedskus.Count - 1)];
tmpsku.location = tmplocation;
sortedskus.Remove(tmpsku);
}
}
locations.Remove(tmplocation);
}
}
return(0);
}
