public LogParseResult ParseLogFromCsv(string path)
{
if (!File.Exists(path))
{
return(null);
}
try
{
var logRecords = new List <LogRecord>();
var validEntriesCount = 0;
var invalidEntriesCount = 0;
var emptyEntriesCount = 0;
using (var reader = new StreamReader(path))
{
while (!reader.EndOfStream)
{
var line = reader.ReadLine();
var values = line.Split(new string[] { GlobalConstants.CsvSeparator }, StringSplitOptions.RemoveEmptyEntries);
if (values.Length == 0)
{
emptyEntriesCount++;
continue;
}
if (values[0].ToLower().Contains("restart"))
{
logRecords.Add(new LogRecord(DateTime.MinValue, CommandType.Restart, -1));
validEntriesCount++;
continue;
}
var timeStampParsed = DateTime.TryParse(values[0], out DateTime recordTimeStamp);
if (!timeStampParsed)
{
invalidEntriesCount++;
continue;
}
if (values.Length < 2)
{
invalidEntriesCount++;
continue;
}
var commandType = ParseCommand(values[1]);
if (commandType == CommandType.Unknown)
{
invalidEntriesCount++;
continue;
}
if (commandType != CommandType.Level)
{
logRecords.Add(new LogRecord(recordTimeStamp, commandType, -1));
validEntriesCount++;
continue;
}
if (values.Length < 3)
{
invalidEntriesCount++;
continue;
}
var levelParsed = int.TryParse(values[2], out int levelValue);
if (!levelParsed)
{
invalidEntriesCount++;
continue;
}
if (levelValue < -1)
{
invalidEntriesCount++;
continue;
}
logRecords.Add(new LogRecord(recordTimeStamp, commandType, levelValue));
validEntriesCount++;
}
}
var log = new ConsumptionLog(logRecords);
return(new LogParseResult(log, validEntriesCount, invalidEntriesCount, emptyEntriesCount));
}
catch (Exception ex)
{
return(null);
}
}
public IReadOnlyList <AnalyzedLogRecord> AnalyzeData(ConsumptionLog log)
{
var analyzedRecords = new List <AnalyzedLogRecord>();
if (log.Records == null || log.Records.Count == 0)
{
return(analyzedRecords);
}
var lastLevel = int.MinValue;
var isCorkOpen = false;
var isCapOpen = false;
var lastTimeStamp = DateTime.MinValue;
var currentTotalWaterConsumedMl = 0;
var currentTimesDrunk = 0;
var currentTimesBottleWasFilled = 0;
var currentTimesCapWasOpen = 0;
var currentTimesCorkWasOpen = 0;
var currentTimesErrorOccured = 0;
foreach (var record in log.Records)
{
if (record.TimeStamp == DateTime.MinValue)
{
continue;
}
if (lastTimeStamp == DateTime.MinValue)
{
lastTimeStamp = record.TimeStamp;
}
if (record.TimeStamp.Date != lastTimeStamp.Date)
{
var analyzedRecord = new AnalyzedLogRecord(lastTimeStamp, currentTotalWaterConsumedMl, currentTimesDrunk,
currentTimesBottleWasFilled, currentTimesCapWasOpen, currentTimesCorkWasOpen, currentTimesErrorOccured);
analyzedRecords.Add(analyzedRecord);
lastTimeStamp = DateTime.MinValue;
currentTotalWaterConsumedMl = 0;
currentTimesDrunk = 0;
currentTimesBottleWasFilled = 0;
currentTimesCapWasOpen = 0;
currentTimesCorkWasOpen = 0;
currentTimesErrorOccured = 0;
}
switch (record.Command)
{
case CommandType.Level:
if (record.LevelValueMl == -1)
{
currentTimesErrorOccured++;
}
else
{
var currentLevel = record.LevelValueMl;
if (lastLevel != int.MinValue)
{
if (lastLevel < currentLevel)
{
currentTimesBottleWasFilled++;
}
if (lastLevel > currentLevel)
{
currentTimesDrunk++;
currentTotalWaterConsumedMl += lastLevel - currentLevel;
}
}
lastLevel = currentLevel;
}
break;
case CommandType.CapOff:
if (!isCapOpen)
{
currentTimesCapWasOpen++;
}
isCapOpen = true;
break;
case CommandType.CorkOff:
if (!isCorkOpen)
{
currentTimesCorkWasOpen++;
}
isCorkOpen = true;
break;
case CommandType.CapOn:
isCapOpen = false;
break;
case CommandType.CorkOn:
isCorkOpen = false;
break;
}
}
if (lastTimeStamp != DateTime.MinValue)
{
var lastRecord = new AnalyzedLogRecord(lastTimeStamp, currentTotalWaterConsumedMl, currentTimesDrunk,
currentTimesBottleWasFilled, currentTimesCapWasOpen, currentTimesCorkWasOpen, currentTimesErrorOccured);
analyzedRecords.Add(lastRecord);
}
return(analyzedRecords);
}