/// <date>10/03/19</date>
/// <summary>
/// Reads contents of an individual unit file and returns them to the caller.
/// </summary>
/// <param name="className">name of the class the unit file is in</param>
/// <param name="fileName">name of the file/unit identifier</param>
/// <returns>Contents of the file which has been read</returns>
public static IndividualUnitFileContents ReadIndividualUnitFile(
string className,
string fileName)
{
string fullFilePath =
IndividualUnitIOController.GetFilePath(
className,
fileName);
if (!File.Exists(fullFilePath))
{
string loggerError =
$"ERROR: File {fullFilePath} does not exist";
Logger.Instance.WriteLog(
loggerError);
return(null);
}
try
{
using (StreamReader sr = new StreamReader(GetFilePath(className, fileName)))
{
string currentLine = string.Empty;
// {Number}
// Version 1 does not have a version number, so in version 1 this would be the unit id.
currentLine = sr.ReadLine();
if (currentLine.Substring(0, VersionString.Length) == VersionString)
{
int version = 0;
if (int.TryParse(currentLine.Substring(VersionString.Length), out version))
{
return(ReadIndividualUnitFileLaterVersion(
sr,
version));
}
else
{
Logger.Instance.WriteLog($"ERROR: Error reading {fullFilePath}. Invalid Version: {currentLine}");
return(null);
}
}
else
{
// This is a version 1 file.
return(IndividualUnitIOController.ReadIndividualUnitFileVersion1(
sr,
currentLine));
}
}
}
catch (Exception ex)
{
Logger.Instance.WriteLog($"ERROR: Error reading {fullFilePath}. Error is {ex}");
return(null);
}
}
/// <summary>
/// Translate string to <see cref="IJourneyDetailsType"/>
/// </summary>
/// <remarks>
/// Currently total_vehicles isn't being used.
/// </remarks>
/// <param name="rawLine">raw data</param>
/// <returns>
/// Converted <see cref="IJourneyDetailsType"/>.
/// </returns>
private static IJourneyDetailsType ConvertJourney(
string rawLine)
{
// {day}^t{month}^t{year}^t{journeyNumber}^t{from}^t{to}^t{via}^t{miles-chains}^t{total_vehicles}^t{number1}^t{number2}^t{number3}^t{number4}
int currentJourneyDay = 0;
int currentJourneyMonth = 0;
int currentJourneyYear = 0;
DateTime currentJourneyDate = new DateTime();
MilesChains currentJourneyDistance = new MilesChains();
string[] currentJourneyArray = rawLine.Split('\t');
if (currentJourneyArray.Count() < FullJourneyStringSize)
{
Logger.Instance.WriteLog($"TRACE: IndividualUnitIOController - Invalid journey line: {rawLine}");
return(null);
}
if (int.TryParse(currentJourneyArray[0], out currentJourneyDay))
{
if (int.TryParse(currentJourneyArray[1], out currentJourneyMonth))
{
if (int.TryParse(currentJourneyArray[2], out currentJourneyYear))
{
currentJourneyDate =
new DateTime(
currentJourneyYear,
currentJourneyMonth,
currentJourneyDay);
}
}
}
currentJourneyDistance.Update(currentJourneyArray[7]);
List <string> units =
new List <string>();
for (int index = 9; index < currentJourneyArray.Length; ++index)
{
// Use add to ensure that whitespace is not added. The historical implementation
// was to always have 4 tabs and leave whitespace where none existed. Now it only
// uses one tab per unit.
IndividualUnitIOController.Add(units, currentJourneyArray[index]);
}
return
(new JourneyDetailsType(
currentJourneyDate,
currentJourneyArray[3],
currentJourneyArray[4],
currentJourneyArray[5],
currentJourneyArray[6],
currentJourneyDistance,
units));
}
/// <date>10/03/19</date>
/// <summary>
/// Reads the contents a individiual unit file for a file version higher than 1.
/// </summary>
/// <param name="reader">stream reader</param>
/// <param name="version">version number</param>
/// <returns>contents of the file being read</returns>
private static IndividualUnitFileContents ReadIndividualUnitFileLaterVersion(
StreamReader reader,
int version)
{
if (version == 2)
{
return(IndividualUnitIOController.ReadIndividualUnitFileVersion2(
reader));
}
return(null);
}
/// <summary>
/// Converts string contains a list of former numbers and adds them
/// via the action.
/// </summary>
/// <param name="numberList">list of former numbers as a string</param>
/// <returns>
/// All former numbers
/// </returns>
private static IVehicleNumberType GetFormerNumbers(
string numberList)
{
IVehicleNumberType formerNumbers = new VehicleNumberTypeViewModel();
string[] formerNumbersArray = numberList.Split('\t');
foreach (string formerNumber in formerNumbersArray)
{
int number = IndividualUnitIOController.ConvertInteger(formerNumber);
if (number != 0)
{
formerNumbers.AddFormerNumber(number);
}
}
return(formerNumbers);
}
/// <date>10/003/19</date>
/// <summary>
/// Read the contents of a version 2 file. At the point this has been called, the
/// first line has been read and is no longer relevant to the decoding process.
/// The next line to be read will be the unit id.
/// </summary>
/// <param name="reader">the open file reader</param>
/// <returns>contents of the file being read.</returns>
private static IndividualUnitFileContents ReadIndividualUnitFileVersion2(
StreamReader reader)
{
string currentLine = string.Empty;
try
{
// {number}
string unitNumber = reader.ReadLine();
// {mileage}
//currentLine = reader.ReadLine();
MilesChains unitDistance = new MilesChains(reader.ReadLine());
// {number_entries}
int entriesCount =
IndividualUnitIOController.ConvertInteger(
reader.ReadLine());
IVehicleNumberType formerNumbers =
IndividualUnitIOController.GetFormerNumbers(
reader.ReadLine());
DateTime lastEntryDate =
IndividualUnitIOController.ConvertDate(
reader.ReadLine());
DateTime lastCheckDate =
IndividualUnitIOController.ConvertDate(
reader.ReadLine());
// {Status}
VehicleServiceType inService = VehicleServiceType.InService;
inService = IndividualUnitIOController.GetServiceStatus(reader.ReadLine());
// {Note}
string note = string.Empty;
note = reader.ReadLine();
List <IJourneyDetailsType> journeys = new List <IJourneyDetailsType>();
currentLine = reader.ReadLine();
while (currentLine != null)
{
IJourneyDetailsType journey =
IndividualUnitIOController.ConvertJourney(
currentLine);
if (journey != null)
{
journeys.Add(journey);
}
currentLine = reader.ReadLine();
}
return(new IndividualUnitFileContents(
unitNumber,
unitDistance,
entriesCount,
formerNumbers,
inService,
lastEntryDate,
lastCheckDate,
journeys,
note));
}
catch (Exception ex)
{
Logger.Instance.WriteLog(
$"ERROR: Error reading individual unit file (ver2). Error is {ex}");
return(null);
}
}
/// <date>10/003/19</date>
/// <summary>
/// Read the contents of a version 1 file. At the point this has been called, the
/// first line has been read and this is the unit id.
/// </summary>
/// <param name="reader">the open file reader</param>
/// <param name="firstLine">contents of the first line/unit id</param>
/// <returns>contents of the file being read.</returns>
private static IndividualUnitFileContents ReadIndividualUnitFileVersion1(
StreamReader reader,
string firstLine)
{
string unitNumber = firstLine;
string currentLine = string.Empty;
// {mileage}
currentLine = reader.ReadLine();
MilesChains unitDistance = new MilesChains(currentLine);
// {number_entries}
int entriesCount =
IndividualUnitIOController.ConvertInteger(
reader.ReadLine());
IVehicleNumberType formerNumbers =
IndividualUnitIOController.GetFormerNumbers(
reader.ReadLine());
DateTime lastCheckDate =
IndividualUnitIOController.ConvertDate(
reader.ReadLine());
List <IJourneyDetailsType> journeys = new List <IJourneyDetailsType>();
currentLine = reader.ReadLine();
while (currentLine != null)
{
IJourneyDetailsType journey = IndividualUnitIOController.ConvertJourney(currentLine);
if (journey != null)
{
journeys.Add(journey);
}
currentLine = reader.ReadLine();
}
DateTime lastJourneyDate;
{
if (journeys.Count > 0)
{
lastJourneyDate = journeys[journeys.Count - 1].Date;
}
else
{
lastJourneyDate = new DateTime(1970, 1, 1);
}
return(new IndividualUnitFileContents(
unitNumber,
unitDistance,
entriesCount,
formerNumbers,
VehicleServiceType.InService,
lastJourneyDate,
lastCheckDate,
journeys,
string.Empty));
}
}
/// <date>10/03/19</date>
/// <summary>
/// Rename a unit file from one number to another, update the contents to include the
/// new id and story the old id in the former number collection.
/// </summary>
/// <param name="newNumber">new unit number</param>
/// <param name="className">name of the class which the unit is part of</param>
/// <param name="formerNumber">former unit number</param>
/// <returns>success flag</returns>
public static bool RenameIndividualUnitFile(
int newNumber,
string className,
int formerNumber)
{
string originalFullPath = string.Empty;
string newFullPath = string.Empty;
try
{
originalFullPath =
IndividualUnitIOController.GetFilePath(
className,
formerNumber.ToString());
newFullPath =
IndividualUnitIOController.GetFilePath(
className,
newNumber.ToString());
if (!File.Exists(originalFullPath))
{
Logger.Instance.WriteLog(
$"Rename Unit File failed, can't find the original file: {originalFullPath}");
return(false);
}
// read the file
IndividualUnitFileContents unit =
IndividualUnitIOController.ReadIndividualUnitFile(
className,
formerNumber.ToString());
if (unit == null)
{
Logger.Instance.WriteLog(
"ERROR: IndividualUnitIOController.renameIndividualUnitFile: Read File failed");
return(false);
}
// change the number in the file.
unit.UnitNumber = newNumber.ToString();
// update the former numbers list
unit.AddFormerNumber(formerNumber);
// save the file.
if (!WriteIndividualUnitFile(unit, className))
{
Logger.Instance.WriteLog("ERROR: IndividualUnitIOController.renameIndividualUnitFile: Write File failed");
return(false);
}
// A copy of the old file has now been saved under the new number,
// delete the old file.
File.Delete(originalFullPath);
//File.Move(
// originalFullPath,
// newFullPath);
}
catch (Exception ex)
{
Logger.Instance.WriteLog($"ERROR: Error renumbering unit file. Error is {ex}");
return(false);
}
return(true);
}
/// <name>writeIndividualUnitFile</name>
/// <date>10/03/19</date>
/// <summary>
/// Saves the contents of a <see cref="IndividualUnitFileContents"/> object to the current
/// <see cref="VersionString"/> of a unit details file.
/// </summary>
/// <param name="unitDetails">unit details</param>
/// <param name="className">name of the class which the unit is part of</param>
/// <returns>success flag</returns>
public static bool WriteIndividualUnitFile(
IndividualUnitFileContents unitDetails,
string className)
{
bool success = true;
string directoryPath = string.Empty;
try
{
directoryPath =
IndividualUnitIOController.GetDirectoryPath(
className);
// Create the directory if it does not exist.
if (!Directory.Exists(directoryPath))
{
Directory.CreateDirectory(directoryPath);
}
using (StreamWriter writer = new StreamWriter(GetFilePath(className, unitDetails.UnitNumber)))
{
// {Version}
writer.WriteLine(VersionString + CurrentDataVersion.ToString());
// {Number}
writer.WriteLine(unitDetails.UnitNumber);
// {mileage}
writer.WriteLine(unitDetails.Distance.ToString());
// {number_entries}
writer.WriteLine(unitDetails.EntriesCount.ToString());
// {former_number1}^t{former_number2}^t{former_number3}
writer.WriteLine(unitDetails.FormerNumbers.ToString());
// {last_entry_day}^t{last_entry_month}^t{last_entry_year}
DateTime lastEntry = new DateTime(1, 1, 1);
writer.WriteLine(lastEntry.Day + "\t" + lastEntry.Month + "\t" + lastEntry.Year);
// {last_check_day}^t{last_check_month}^t{last_check_year}
DateTime lastCheck = unitDetails.LastCheckDate;
writer.WriteLine(lastCheck.Day + "\t" + lastCheck.Month + "\t" + lastCheck.Year);
// {Status}
writer.WriteLine(unitDetails.InService);
// {Notes}
writer.WriteLine(unitDetails.Notes);
if (unitDetails.Journeys.Count > 0)
{
// {day}^t{month}^t{year}^t{from}^t{to}^t{via}^t{miles}^t{chains}^t{total_vehicles}^t{number1}^t{number2}^t{number3}^t{number4}
//Not this is the other way around to the IVehicleDataType
for (int index = 0; index < unitDetails.Journeys.Count; ++index)
{
writer.WriteLine(unitDetails.Journeys[index].ToFullString());
}
}
}
}
catch (Exception ex)
{
Logger.Instance.WriteLog(
$"ERROR: Error writing {directoryPath}, {unitDetails.UnitNumber}. Error is {ex}");
success = false;
}
return(success);
}
/// <date>10/03/19</date>
/// <summary>
/// Saves the contents of a <see cref="IVehicleDetailsType"/> object to the current
/// <see cref="VersionString"/> of a unit details file.
/// </summary>
/// <param name="unitDetails">unit details to be saved</param>
/// <param name="className">name of the class which the unit is part of</param>
/// <returns>save success flag</returns>
public static bool WriteIndividualUnitFile(
IVehicleDetailsType unitDetails,
string className)
{
bool success = true;
string directoryPath = string.Empty;
try
{
directoryPath =
IndividualUnitIOController.GetDirectoryPath(
className);
// Create the directory if it does not exist.
if (!Directory.Exists(directoryPath))
{
Directory.CreateDirectory(directoryPath);
}
using (StreamWriter writer = new StreamWriter(GetFilePath(className, unitDetails.UnitNumber)))
{
// {Version}
writer.WriteLine(VersionString + CurrentDataVersion.ToString());
// {Number}
writer.WriteLine(unitDetails.UnitNumber);
// {mileage}
writer.WriteLine(unitDetails.UnitDistance.ToString());
// {number_entries}
writer.WriteLine(unitDetails.NumberOfJnys.ToString());
// {former_number1}^t{former_number2}^t{former_number3}
writer.WriteLine(unitDetails.FormerNumbers.ToString());
// {last_entry_day}^t{last_entry_month}^t{last_entry_year}
DateTime lastEntry = new DateTime(1, 1, 1);
writer.WriteLine(lastEntry.Day + "\t" + lastEntry.Month + "\t" + lastEntry.Year);
// {last_check_day}^t{last_check_month}^t{last_check_year}
DateTime lastCheck = unitDetails.UnitLastCheck;
writer.WriteLine(lastCheck.Day + "\t" + lastCheck.Month + "\t" + lastCheck.Year);
// {Status}
writer.WriteLine(unitDetails.Status);
// {Notes}
writer.WriteLine(unitDetails.Notes);
if (unitDetails.NumberOfJnys > 0)
{
// {day}^t{month}^t{year}^t{from}^t{to}^t{via}^t{miles}^t{chains}^t{total_vehicles}^t{number1}^t{number2}^t{number3}^t{number4}
for (int index = unitDetails.NumberOfJnys - 1; index >= 0; --index)
{
// Bit of a mess really. There is a model class which knows how to write to files and a view model
// class which know how to display to a view. This converts from view model to model. May need to be
// reworked. (There are other places as well).
List <string> units = new List <string>();
IndividualUnitIOController.Add(units, unitDetails.JourneysList[index].UnitOne);
IndividualUnitIOController.Add(units, unitDetails.JourneysList[index].UnitTwo);
IndividualUnitIOController.Add(units, unitDetails.JourneysList[index].UnitThree);
IndividualUnitIOController.Add(units, unitDetails.JourneysList[index].UnitFour);
IJourneyDetailsType journey =
new JourneyDetailsType(
unitDetails.JourneysList[index].JnyId.Date,
unitDetails.JourneysList[index].JnyId.JnyNumber,
unitDetails.JourneysList[index].From,
unitDetails.JourneysList[index].To,
unitDetails.JourneysList[index].Route,
unitDetails.JourneysList[index].Distance,
units);
writer.WriteLine(journey.ToFullString());
}
}
}
}
catch (Exception ex)
{
Logger.Instance.WriteLog(
$"ERROR: Error writing {directoryPath}, {unitDetails.UnitNumber}. Error is {ex}");
success = false;
}
return(success);
}
