public void startAllocation()
{
foreach (var skill in skills)
{
//pick job according to priority of jobs
WorkUnit workUnit = workUnits.Where(x => x.skill == skill && !x.isAllocated).OrderByDescending(y => y.priority).ThenBy(m => m.timeRequired).FirstOrDefault();
AllocateWorker(workUnit);
}
}
void AllocateWorker(WorkUnit workUnit)
{
List <Employee> workers = new List <Employee>();
Employee worker = new Employee();
var numberOfWorkersBySkill = employees.Where(v => v.skill == workUnit.skill).ToList();
//Case 1.1: if multiple workes on same skill
if (numberOfWorkersBySkill.Count() > 1)
{
var freeWorkers = employees.Where(b => b.skill == workUnit.skill && b.timeAllocated == 0).OrderBy(x => x.designation).ToList();
//Case 2.1: if all workers engaged, then pick worker list order by time required to complete the job
if (employees.Where(d => d.skill == workUnit.skill).All(d => d.timeAllocated > 0))
{
workers = freeWorkers.Count() > 0 ? freeWorkers : employees.Where(c => c.skill == workUnit.skill).OrderBy(x => x.timeAllocated).ToList();
}
//Case 2.2: if some workers engaged, then pick worker list order by designation
else if (employees.Any(d => d.skill == workUnit.skill && d.timeAllocated > 0))
{
workers = freeWorkers.Count() > 0 ? freeWorkers : employees.Where(c => c.skill == workUnit.skill && c.timeAllocated <= workUnit.timeRequired).OrderBy(x => x.designation).ToList();
}
//Case 2.3: if all workers free
else
{
workers = employees.Where(c => c.skill == workUnit.skill).OrderBy(x => x.designation).ToList();
}
}
//Case 1.2: if one workes for particular skill
else
{
workers = numberOfWorkersBySkill;
}
//Allocate worker from workers list allowed to work on that job
worker = workers.FirstOrDefault();
var desig = worker.designation;
if (!workerAllocatedWithTasks.ContainsKey(desig))
{
workerAllocatedWithTasks.Add(desig, new List <int>());
}
workerAllocatedWithTasks[desig].Add(workUnit.jobID);
workUnits.Where(g => g.jobID == workUnit.jobID).FirstOrDefault().isAllocated = true;
var durationOfTask = employees.Where(g => g.designation == worker.designation).FirstOrDefault().timeAllocated;
employees.Where(g => g.designation == worker.designation).FirstOrDefault().timeAllocated = durationOfTask + workUnit.timeRequired;
}
public void ParseInput(string[] empDesignationWithSkill, string[] skillWithTasks)
{
foreach (var item in empDesignationWithSkill)
{
string[] employee = item.Split('#');
employees.Add(new Employee {
designation = employee[0], skill = employee[1], timeAllocated = 0
});
}
foreach (var item in skillWithTasks)
{
string[] skillWithTaskDetails = item.Split('#');
WorkUnit unitOfWork = new WorkUnit
{
skill = skillWithTaskDetails[0],
priority = Convert.ToInt32(skillWithTaskDetails[1]),
timeRequired = Convert.ToInt32(skillWithTaskDetails[2]),
jobID = Convert.ToInt32(skillWithTaskDetails[3]),
isAllocated = false
};
workUnits.Add(unitOfWork);
}
skills = workUnits.Select(o => o.skill).ToList();
}
