/// <summary>
/// Process the job classes on a single page.
/// </summary>
/// <param name="page">The textual data of a single page, broken by newline and realigned.</param>
/// <returns>A collection of JobClass objects from the page.</returns>
IEnumerable<JobClass> processClassesOnPage(IEnumerable<string> page)
{
var jobClasses = new List<JobClass>();
//to process the chunks sequentially (considering more than one at a time)
var queue = new Queue<string>(page);
while (queue.Any())
{
var jobClass = new JobClass();
var steps = new List<JobClassStep>();
var currentStep = new JobClassStep();
IEnumerable<string> dataChunks = queue.Dequeue().Split(new[] { " " }, StringSplitOptions.RemoveEmptyEntries);
//assign the title, code, bargaining unit, grade for this class
dataChunks = assignClassData(dataChunks.ToList(), jobClass);
//if there is leftover data -> step definition
if (dataChunks.Any())
{
currentStep = assignStepData(dataChunks);
steps.Add(currentStep);
}
//add each subsequent step for this class
while (queue.Any() && queue.Peek().StartsWith(jobClass.Grade))
{
dataChunks = queue.Dequeue().Split(new[] { " " }, StringSplitOptions.RemoveEmptyEntries).Skip(1);
currentStep = assignStepData(dataChunks);
steps.Add(currentStep);
}
jobClass.Steps = steps;
jobClasses.Add(jobClass);
}
return jobClasses;
}
/// <summary>
/// Consumes a line of data to populate a JobClassStep
/// </summary>
/// <param name="dataChunks">A collection of salary step data points.</param>
/// <returns>A JobClassStep object representation of the data.</returns>
JobClassStep assignStepData(IEnumerable<string> dataChunks)
{
var step = new JobClassStep();
//a job class step consists of 5 data points
if (dataChunks.Count() == 5)
{
//convert to numeric and order increasing
var numberChunks = dataChunks.Select(d => decimal.Parse(d)).OrderBy(d => d).ToArray();
step.StepNumber = (int)numberChunks[0];
step.HourlyRate = numberChunks[1];
step.BiWeeklyRate = numberChunks[2];
step.MonthlyRate = numberChunks[3];
step.AnnualRate = numberChunks[4];
}
else
{
throw new InvalidOperationException(String.Format("Couldn't parse step data: {0}", String.Join(" ", dataChunks)));
}
return step;
}
