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using ServerApp.Parser.InputData;
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using ServerApp.Parser.OutputInfo;
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using System;
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using System.Collections.Generic;
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using System.IO;
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namespace ServerApp.Parser.Parsers
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{
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/// <summary>
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/// Class parsing login files into instances of ActivityInfo divided by given time interval
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/// Data parsed from 7am (included) to 18pm (included)
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/// </summary>
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/// <author>Alex Konig</author>
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class LogInParser
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{
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/// <summary> Datafile loader </summary>
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DataLoader loader;
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/// <summary>
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/// Constructor
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/// </summary>
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/// <param name="loader">Datafile loader</param>
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public LogInParser(DataLoader loader)
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{
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this.loader = loader;
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}
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/// <summary>
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/// Parses login data to ActivityInfo instances
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/// Data parsed from 7am (included) to 18pm (included)
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/// </summary>
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/// <param name="folder">Folder with login data files</param>
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/// <param name="wholeDay">Should data be parsed as one instance per day (if true parameter interval will be ignored)</param>
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/// <param name="interval">Time interval to divide days by, minimum is 1h</param>
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/// <returns></returns>
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public List<ActivityInfo> ParseLogInData(string folder, bool wholeDay = true, int interval = 1)
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{
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if (!Directory.Exists(folder))
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return null;
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List<ActivityInfo> list = new List<ActivityInfo>();
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// get all files in folder
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string[] fileEntries = Directory.GetFiles(folder);
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foreach (string fileName in fileEntries)
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{
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List<ActivityInfo> loadedData = null;
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// parse as one instance per day
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if (wholeDay)
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loadedData = ProcessOneLogInFileAsDays(fileName);
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// parse by interval length
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else
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loadedData = ProcessOneLoginFileAsIntervals(fileName, interval);
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list.AddRange(loadedData);
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}
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return list;
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}
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/// <summary>
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/// Parses data from one data file as one instance per day
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/// </summary>
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/// <param name="path">Path ti file</param>
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/// <returns>List with ActivityInfo instances</returns>
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private List<ActivityInfo> ProcessOneLogInFileAsDays(string path)
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{
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if (!File.Exists(path))
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return null;
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List<ActivityInfo> loginInfo = new List<ActivityInfo>();
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List<LogInInstance> list = loader.LoadLoginFile(path);
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// data for each faculty
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int[] recordedAmount = new int[TagInfo.faculties.Length];
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// min/max hour taken into account
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int[] minmaxHour = new int[] { 7, 18 };
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// interval length
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int range = minmaxHour[1] - minmaxHour[0];
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// first day
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DateTime lastStartDay = new DateTime(list[0].date.Year, list[0].date.Month, list[0].date.Day, minmaxHour[0], 0, 0);
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for (int i = 0; i < list.Count; i++)
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{
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int currHour = list[i].lessonStart.Hour;
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if (currHour < minmaxHour[0] || currHour > minmaxHour[1])
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continue;
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// start of the day -> make an instance
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string place = list[i].building;
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DateTime date = new DateTime(list[i].date.Year, list[i].date.Month, list[i].date.Day, minmaxHour[0], 0, 0);
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if (!date.Equals(lastStartDay))
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{
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// data for each faculty separate
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for (int k = 0; k < TagInfo.faculties.Length; k++)
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{
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ActivityInfo dayInfo = new ActivityInfo(TagInfo.faculties[k], recordedAmount[k], lastStartDay, range);
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loginInfo.Add(dayInfo);
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}
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recordedAmount = new int[TagInfo.faculties.Length];
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lastStartDay = date;
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}
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// aggregate data
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if (TagInfo.buildingTags.ContainsKey(place))
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{
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int index = TagInfo.buildingTags[place];
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// to all
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if (index == -1)
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for (int l = 0; l < TagInfo.faculties.Length; l++)
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recordedAmount[l] += list[i].amount;
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// to first two
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else if (index == -2)
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{
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recordedAmount[0] += list[i].amount;
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recordedAmount[1] += list[i].amount;
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}
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else
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recordedAmount[index] += list[i].amount;
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}
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else
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{
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// TODO uknown code handling
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Console.WriteLine("Unknown code " + list[i].building);
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}
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}
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// last day
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for (int k = 0; k < TagInfo.faculties.Length; k++)
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{
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ActivityInfo dayInfo = new ActivityInfo(TagInfo.faculties[k], recordedAmount[k], lastStartDay, range);
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loginInfo.Add(dayInfo);
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}
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return loginInfo;
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}
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/// <summary>
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/// Parses data from one data file as one instance per interval length
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/// </summary>
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/// <param name="path">Path to file</param>
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/// <param name="interval">Interval length</param>
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/// <returns>List with ActivityInfo instances</returns>
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private List<ActivityInfo> ProcessOneLoginFileAsIntervals(string path, int interval)
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{
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if (!File.Exists(path))
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return null;
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List<ActivityInfo> loignInfo = new List<ActivityInfo>();
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List<LogInInstance> list = loader.LoadLoginFile(path);
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// min/max hour taken into account
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int[] minmaxHour = new int[] { 7, 18 };
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int range = minmaxHour[1] - minmaxHour[0];
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if (interval > range)
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return null;
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int indices = (int)Math.Ceiling(range / (double)interval);
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int[] to = new int[indices];
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int[][] data = new int[indices][];
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for (int i = 0; i < to.Length; i++)
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{
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to[i] = minmaxHour[0] + interval * (i + 1);
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data[i] = new int[TagInfo.faculties.Length];
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}
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// first day
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DateTime lastStartTime = new DateTime(list[0].date.Year, list[0].date.Month, list[0].date.Day, minmaxHour[0], 0, 0);
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int index = 0;
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for (int i = 0; i < list.Count; i++)
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{
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int currHour = list[i].lessonStart.Hour;
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if (currHour < minmaxHour[0] || currHour > minmaxHour[1])
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continue;
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// start of the day -> make an instance
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string place = list[i].building;
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DateTime date = new DateTime(list[i].date.Year, list[i].date.Month, list[i].date.Day, list[i].lessonStart.Hour, 0, 0);
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// end of the day
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if (!(date.Year == lastStartTime.Year && date.Month == lastStartTime.Month && date.Day == lastStartTime.Day))
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{
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// note down all aggregated data
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for (int k = 0; k < to.Length; k++)
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{
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DateTime stTime = new DateTime(lastStartTime.Year, lastStartTime.Month, lastStartTime.Day, to[k] - interval, 0, 0);
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// data for each faculty separate
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for (int l = 0; l < TagInfo.faculties.Length; l++)
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{
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ActivityInfo dayInfo = new ActivityInfo(TagInfo.faculties[l], data[k][l], stTime, interval);
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loignInfo.Add(dayInfo);
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}
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data[k] = new int[TagInfo.faculties.Length];
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}
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lastStartTime = date;
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}
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// find index for current instance
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index = 0;
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for (int k = 1; k < to.Length; k++)
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{
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if (to[k] > list[i].lessonStart.Hour && to[k - 1] <= list[i].lessonStart.Hour)
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{
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index = k;
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break;
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}
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}
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// aggregate data
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if (TagInfo.buildingTags.ContainsKey(place))
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{
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int faculty = TagInfo.buildingTags[place];
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// to all
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if (faculty == -1)
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for (int l = 0; l < TagInfo.faculties.Length; l++)
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data[index][l] += list[i].amount;
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// to first two
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else if (faculty == -2)
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{
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data[index][0] += list[i].amount;
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data[index][1] += list[i].amount;
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}
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else
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data[index][faculty] += list[i].amount;
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}
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else
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{
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// TODO uknown code handling
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Console.WriteLine("Unknown code " + list[i].building);
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}
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}
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for (int k = 0; k < to.Length; k++)
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{
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DateTime stTime = new DateTime(lastStartTime.Year, lastStartTime.Month, lastStartTime.Day, to[k] - interval, 0, 0);
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// data for each faculty separate
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for (int l = 0; l < TagInfo.faculties.Length; l++)
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{
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ActivityInfo dayInfo = new ActivityInfo(TagInfo.faculties[l], data[k][l], stTime, interval);
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loignInfo.Add(dayInfo);
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}
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}
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return loignInfo;
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}
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}
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}
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