//retrieves a single, unique prescription using the prescription ID
public Prescription GetPrescription(int pID)
{
//get filepath of prescription file located in internal storage
string internalStoragePath = Application.Context.FilesDir.Path;
string prescriptionPath = Path.Combine(internalStoragePath, prescriptionFileName);
//return null if file doesn't exist
if (!DoesPrescriptionExist(pID))
{
return(null);
}
string[] prescriptionData = File.ReadAllLines(prescriptionPath);
foreach (string prescriptionLine in prescriptionData)
{
//if prescription ID matches pID, return the data of the current prescription
if (GetRXIDFromPrescriptionData(prescriptionLine) == pID)
{
ParserData newParserData = new ParserData(prescriptionLine);
return(newParserData.CreatePrescription());
}
}
//if no matches found, return null
return(null);
}
//returns a list of all the user's prescriptions
public List <Prescription> GetAllPrescriptions()
{
List <Prescription> prescriptionList = new List <Prescription>();
foreach (string p in GetAllPrescriptionData())
{
ParserData parse = new ParserData(p);
prescriptionList.Add(parse.CreatePrescription());
}
return(prescriptionList);
}