using System;
using System.Collections.Generic;
using System.Configuration;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using TrackerLibrary.Models;

namespace TrackerLibrary.DataAccess.TextHelpers
{
    public static class TextConnectorProcessor
    {
        public static string FullFilePath(this string fileName) // PrizeModel.csv
        {
            return $"{ConfigurationManager.AppSettings["filePath"]}\\{fileName}";
        }

        public static List<string> LoadFile(this string file)
        {
            if (!File.Exists(file))
            {
                return new List<string>();
            }
            return File.ReadAllLines(file).ToList();
        }

        public static List<PrizeModel> ConvertToPrizeModels(this List<string> lines)
        {
            List<PrizeModel> output = new List<PrizeModel>();

            foreach (string line in lines)
            {
                string[] cols = line.Split(',');
                PrizeModel p = new PrizeModel();
                p.Id = int.Parse(cols[0]);
                p.PlaceNumber = int.Parse(cols[1]);
                p.PlaceName = cols[2];
                p.PrizeAmount = decimal.Parse(cols[3]);
                p.PrizePercentage = double.Parse(cols[4]);
                output.Add(p);
            }

            return output;
        }

        public static List<PersonModel> ConvertToPersonModels(this List<string> lines)
        {
            List<PersonModel> output = new List<PersonModel>();
            foreach(string line in lines)
            {
                string[] cols = line.Split(',');
                PersonModel p = new PersonModel();
                p.Id = int.Parse(cols[0]);
                p.FirstName = cols[1];
                p.LastName = cols[2];
                p.EmailAddress = cols[3];
                p.CellPhoneNumber = cols[4];
                output.Add(p);
            }
            return output;
        }

        public static List<TeamModel> ConvertToTeamModels(this List<string> lines, string peopleFileName)
        {
            // id, team name,list of ids separated by pipe
            // 3,Start Team, 1|4
            List<TeamModel> output = new List<TeamModel>();
            List<PersonModel> people = peopleFileName.FullFilePath().LoadFile().ConvertToPersonModels();

            foreach (string line in lines)
            {
                string[] cols = line.Split(',');

                TeamModel t = new TeamModel();
                t.Id = int.Parse(cols[0]);
                t.TeamName = cols[1];

                string[] personIds = cols[2].Split('|');

                foreach(string id in personIds)
                {
                    t.TeamMembers.Add(people.Where(x => x.Id == int.Parse(id)).First());
                }

                output.Add(t);

            }

            return output;
        }



            public static void SaveToPrizeFile(this List<PrizeModel> models, string fileName)
        {
            List<string> lines = new List<string>();

            foreach (PrizeModel p in models)
            {
                lines.Add($"{p.Id},{p.PlaceNumber},{p.PlaceName}, {p.PrizeAmount}, {p.PrizePercentage}");
            }
            File.WriteAllLines(fileName.FullFilePath(), lines);
        }

        public static void SaveToPeopleFile(this  List<PersonModel> models, string fileName)
        {
            List<string> lines = new List<string>();
            foreach(PersonModel p in models)
            {
                lines.Add($"{p.Id},{p.FirstName},{p.LastName},{p.EmailAddress},{p.CellPhoneNumber}");
            }

            File.WriteAllLines(fileName.FullFilePath(), lines);

        }

        public static void SaveToTeamFile(this List<TeamModel> models, string fileName)
        {
            List<string> lines = new List<string>();
            foreach(TeamModel t in models)
            {
                lines.Add($"{t.Id},{t.TeamName},{ConvertPeopleListToString(t.TeamMembers)}");
            }

            File.WriteAllLines(fileName.FullFilePath(), lines);
        }

        private static string ConvertPeopleListToString(List<PersonModel> people)
        {
            string output = "";
            if (people.Count==0)
            {
                return "";
            }
            foreach(PersonModel p in people)
            {
                output += $"{p.Id}|";
            }

            output = output.Substring(0, output.Length - 1);
            return output;
        }
    }
}