aswi2021tri-musketyri-gitlab/Server/ServerApp/Parser/Parsers/DataParser.cs @ c0dffb79

using ServerApp.Parser.InputData;
using ServerApp.Parser.OutputInfo;
using System;
using System.Collections.Generic;
using System.Globalization;
using System.Threading;

namespace ServerApp.Parser.Parsers
{
    /// <summary>
    /// Class parsing data files into instances of ActivityInfo and WeatherInfo divided by given time interval
    /// Data parsed from 7am (included) to 18pm (included)
    /// </summary>
    /// <author>Alex Konig</author>
    class DataParser
    {
        /// <summary> Path to data folder </summary>
        string path;
        /// <summary> Weather data parser </summary>
        WeatherParser weatherParser;
        /// <summary> Jis data parser </summary>
        JisParser jisParser;
        /// <summary> Login data parser </summary>
        LogInParser loginParser;

        /// <summary> WeatherInfo </summary>
        List<WeatherInfo> weatherList;
        public List<WeatherInfo> WeatherList { get => weatherList; }
        /// <summary> ActivityInfo repersenting overall activity </summary>
        List<ActivityInfo> attendanceList;
        public List<ActivityInfo> AttendanceList { get => attendanceList; }

        /// <summary> ActivityInfo representing jis activity </summary>
        List<ActivityInfo> jisList;
        /// <summary> ActivityInfo representing login activity</summary>
        List<ActivityInfo> loginList;

        /// <summary>
        /// Constructor
        /// </summary>
        public DataParser(string path)
        {
            TagInfo.CreateDictionaries();

            // TODO ask for data folder
            this.path = path;
            DataLoader loader = new CsvDataLoader();

            weatherParser = new WeatherParser(loader);
            jisParser = new JisParser(loader);
            loginParser = new LogInParser(loader);
        }

        /// <summary>
        /// Parse data
        /// </summary>
        /// <param name="interval">Length of an interval</param>
        /// <param name="wholeDay">Parse data as one instance per day</param>
        public bool Parse(DateTime startTime, DateTime endTime, int interval = 1, bool wholeDay = true)
        {
            // TODO start and end time -> ask for files from this span, plus validate if the data really is from this span (issue with 00 files)

            var cultureInfo = CultureInfo.GetCultureInfo("en-GB");
            Thread.CurrentThread.CurrentCulture = cultureInfo;
            Thread.CurrentThread.CurrentUICulture = cultureInfo;

            string pathWeather = path + "weather";
            string pathJis = path + "jis";
            string pathLogIn = path + "login";

            weatherList = weatherParser.ParseWeatherData(pathWeather, wholeDay, interval);
            jisList = jisParser.ParseJisData(pathJis, wholeDay, interval);
            loginList = loginParser.ParseLogInData(pathLogIn, wholeDay, interval);

            //Console.WriteLine("WEATHER");
            //WriteToConsole(weatherList);
            //Console.WriteLine("JIS");
            //WriteToConsole(jisList);
            //Console.WriteLine("LOGIN");
            //WriteToConsole(loginList);

            //WriteToConsole(AddListToOne(jisList));

            MergeAttendance();

            //Console.WriteLine("MERGED IN ONE LIST");
            //WriteToConsole(attendanceList);

            if (weatherList.Count == 0 || attendanceList.Count == 0)
                return false;

            return true;
        }

        /// <summary>
        /// Merges ActivityInfo lists with jis and login activity into one
        /// Adds information from the same time period together, doesn't change the rest
        /// </summary>
        private void MergeAttendance()
        {
            attendanceList = new List<ActivityInfo>();

            int indexJis = 0, indexLogin = 0;
            while (true)
            {
                if (indexJis >= jisList.Count && indexLogin >= loginList.Count)
                    break;

                ActivityInfo jis = jisList[indexJis];
                int jisTag = TagInfo.IndexOfBuilding(jis.building);
                ActivityInfo login = loginList[indexLogin];
                int loginTag = TagInfo.IndexOfBuilding(login.building);

                // if same time times -> add to one info
                if (jis.startTime == login.startTime)
                {
                    // need to have same building tags
                    if (jisTag == loginTag)
                    {
                        jis.amount += login.amount;
                        attendanceList.Add(jis);
                        indexJis++; indexLogin++;
                    }

                    if (jisTag < loginTag)
                    {
                        indexJis++;
                        attendanceList.Add(jis);
                    }

                    if (jisTag > loginTag)
                    {
                        indexLogin++;
                        attendanceList.Add(login);
                    }

                }

                // if jis time is smaller -> add jis and move
                if (jis.startTime < login.startTime)
                {
                    indexJis++;
                    attendanceList.Add(jis);
                }

                // if login time is smaller -> add login and move
                if (login.startTime < jis.startTime)
                {
                    indexLogin++;
                    attendanceList.Add(login);
                }

            }

        }

        /// <summary>
        /// Sum all info for separate intervals in the list to the appropriate day
        /// </summary>
        /// <param name="list">List with activity info, info separated into buildings and intervals</param>
        /// <returns></returns>
        private List<ActivityInfo> AddListToOne(List<ActivityInfo> list)
        {
            List<ActivityInfo> a2 = new List<ActivityInfo>();
            for (int i = 0; i < list.Count; i+=TagInfo.buildings.Length)
            {
                int amount = 0;
                for (int j = 0; j < TagInfo.buildings.Length; j++)
                {
                    amount += list[i + j].amount;
                }
                ActivityInfo info = new ActivityInfo("ALL", amount, list[i].startTime, list[i].intervalLength);
                a2.Add(info);
            }
            return a2;
        }

        /// <summary>
        /// Debug method - writing lists to console
        /// </summary>
        private void WriteToConsole(List<ActivityInfo> list)
        {
            // TODO useless in finished app
            if (list == null)
            {
                Console.WriteLine("Unsuccessful parsing");
                return;
            }
            Console.WriteLine(list.Count);

            for (int i = 0; i < list.Count; i++)
                Console.WriteLine(list[i].ToString());
        }

        /// <summary>
        /// Debug method - writing lists to console
        /// </summary>
        private void WriteToConsole(List<WeatherInfo> list)
        {
            // TODO useless in finished app
            if (list == null)
            {
                Console.WriteLine("Unsuccessful parsing");
                return;
            }
            Console.WriteLine(list.Count);

            for (int i = 0; i < list.Count; i++)
                Console.WriteLine(list[i].ToString());
        }

    }
}