using System;
using System.Collections.Generic;
using System.IO;

namespace KioskLibrary
{
    public class coStatistiques
    {
        private static readonly string _statsFile = "/KioskStats";

        private static readonly string _filePath =
            Environment.GetFolderPath(Environment.SpecialFolder.CommonApplicationData);

        /// <summary>
        ///     Ifs the file exist.
        /// </summary>
        /// <param name="weekNum">The week number.</param>
        /// <returns></returns>
        /// =====================================================================================
        /// Modification : Initial : 17/04/2018 | N.WILCKE (SESA474351)
        /// =====================================================================================
        public static bool IfFileExist(int weekNum)
        {
            try
            {
                if (File.Exists(_filePath + _statsFile + "." + weekNum + "." + DateTime.Now.Year + ".txt")) return true;
                return false;
            }
            catch
            {
                return false;
            }
        }

        /// <summary>
        ///     Whats kind of project is it.
        /// </summary>
        /// <param name="number">The number.</param>
        /// <returns></returns>
        /// =====================================================================================
        /// Modification : Initial : 17/04/2018 | N.WILCKE (SESA474351)
        /// =====================================================================================
        public static string WhatIsIt(string number)
        {
            try
            {
                switch (number.Substring(0, 1))
                {
                    case "4":
                        return "ODT";

                    case "7":
                        return "CRT";

                    case "9":
                        return "CRT";

                    case "8":
                        return "MPT";
                }

                return "NA";
            }
            catch
            {
                return "ERROR";
            }
        }

        /// <summary>
        ///     Writes the stats.
        /// </summary>
        /// <param name="number">The number.</param>
        /// <param name="writtenNumber">The written number. (numero de projet ou d'OF)</param>
        /// <param name="IsProject">if set to <c>true</c> [is project].</param>
        /// <param name="user">The user.</param>
        /// =====================================================================================
        /// Modification : Initial : 17/04/2018 | N.WILCKE (SESA474351)
        /// =====================================================================================
        public static void WriteStats(string number, string writtenNumber, bool IsProject, string user)
        {
            try
            {
                // CRT ODT or MPT
                var projectType = WhatIsIt(number);
                var isProjectText = "";
                var weekNum = DateTime.Now.DayOfYear / 7;

                if (IsProject)
                    isProjectText = "Projet";
                else
                    isProjectText = "OF";

                if (IfFileExist(weekNum))
                    File.AppendAllText(_filePath + _statsFile + "." + weekNum + "." + DateTime.Now.Year + ".txt",
                        isProjectText + ";" + projectType + ";" + writtenNumber + ";" + weekNum + ";" +
                        DateTime.Now.ToLongDateString() + ";" + DateTime.Now.ToLongTimeString() + Environment.NewLine);
                else
                    using (var sw =
                        File.CreateText(_filePath + _statsFile + "." + weekNum + "." + DateTime.Now.Year + ".txt"))
                    {
                        sw.WriteLine(isProjectText + ";" + projectType + ";" + writtenNumber + ";" + weekNum + ";" +
                                     DateTime.Now.ToLongDateString() + ";" + DateTime.Now.ToLongTimeString());
                    }
            }
            catch
            {
            }
        }

        /// <summary>
        /// Reads the stats.
        /// </summary>
        /// <param name="weekNum">The week number.</param>
        /// <param name="date">The date.</param>
        /// <returns></returns>
        /// =====================================================================================
        /// Modification : Initial : 17/04/2018 | N.WILCKE (SESA474351)
        /// =====================================================================================
        public static List<string> ReadStats(string weekNum, int date)
        {
            var stats = new List<string>();
            var weekString = weekNum.Split(',');
            var test = _filePath + "\\" + weekNum;

            if (File.Exists(test))
            {
                var file = File.ReadAllLines(test);
                for (var j = 0; j < file.Length; j += 1)
                {
                    var line = file[j];
                    stats.Add(line);
                }

                return stats;
            }

            return stats;
        }

        public static List<List<string>> ReadAllStats()
        {
            List<List<string>> allWeeks = new List<List<string>>();



            return allWeeks;
        }

        /// <summary>
        ///     Gets existing weeks.
        /// </summary>
        /// <returns></returns>
        /// =====================================================================================
        /// Modification : Initial : 17/04/2018 | N.WILCKE (SESA474351)
        /// =====================================================================================
        public static Dictionary<int, int> GetWeeks()
        {
            try
            {
                var semaines = new Dictionary<int, int>();

                var firstWeek = 15; // First week of stats
                var firstYear = 2018; // First Year of stats
                var weekNum = DateTime.Now.DayOfYear / 7; // Current week number

                while (firstYear < firstYear + 1)
                {
                    while (firstWeek <= weekNum)
                    {
                        if (File.Exists(_filePath + _statsFile + "." + firstWeek + "." + firstYear + ".txt"))
                            semaines.Add(firstWeek, firstYear);
                        firstWeek++;
                        if (firstWeek == 52)
                        {
                            firstYear++;
                            firstWeek = 1;
                        }
                    }

                }

                return semaines;
            }
            catch
            {
                var semaines = new Dictionary<int, int>();
                return semaines;
            }
        }

        public static List<Tuple<int, int, int>> GetAllWeeks()
        {
            try
            {
                var semaines = new List<Tuple<int, int, int>>();

                var firstWeek = 15; // First week of stats
                var firstYear = 2018; // First Year of stats
                var weekNum = DateTime.Now.DayOfYear / 7; // Current week number

                while (firstWeek <= weekNum && firstYear < firstYear + 1)
                {
                    if (File.Exists(_filePath + _statsFile + "." + firstWeek + "." + firstYear + ".txt"))
                    {
                        int lines = 0;
                        using (TextReader reader = File.OpenText(_filePath + _statsFile + "." + firstWeek + "." + firstYear + ".txt"))
                        {
                            while (reader.ReadLine() != null) { lines++; }
                        }
                        semaines.Add(new Tuple<int, int, int>(firstWeek, firstYear, lines));
                    }
                    firstWeek++;
                    if (firstWeek == 52)
                    {
                        firstYear++;
                        firstWeek = 1;
                    }
                }

                return semaines;
            }
            catch
            {
                var semaines = new List<Tuple<int, int, int>>();
                return semaines;
            }
        }
    }
}