using System.Collections.Concurrent;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using API.Entities.Enums;
using API.Parser;
using API.Services.Tasks.Scanner;

namespace API.Tests.Helpers
{
    public static class ParserInfoFactory
    {
        public static ParserInfo CreateParsedInfo(string series, string volumes, string chapters, string filename, bool isSpecial)
        {
            return new ParserInfo()
            {
                Chapters = chapters,
                Edition = "",
                Format = MangaFormat.Archive,
                FullFilePath = Path.Join(@"/manga/", filename),
                Filename = filename,
                IsSpecial = isSpecial,
                Title = Path.GetFileNameWithoutExtension(filename),
                Series = series,
                Volumes = volumes
            };
        }

        public static void AddToParsedInfo(IDictionary<ParsedSeries, IList<ParserInfo>> collectedSeries, ParserInfo info)
        {
            var existingKey = collectedSeries.Keys.FirstOrDefault(ps =>
                ps.Format == info.Format && ps.NormalizedName == API.Services.Tasks.Scanner.Parser.Parser.Normalize(info.Series));
            existingKey ??= new ParsedSeries()
            {
                Format = info.Format,
                Name = info.Series,
                NormalizedName = API.Services.Tasks.Scanner.Parser.Parser.Normalize(info.Series)
            };
            if (collectedSeries.GetType() == typeof(ConcurrentDictionary<,>))
            {
                ((ConcurrentDictionary<ParsedSeries, IList<ParserInfo>>) collectedSeries).AddOrUpdate(existingKey, new List<ParserInfo>() {info}, (_, oldValue) =>
                {
                    oldValue ??= new List<ParserInfo>();
                    if (!oldValue.Contains(info))
                    {
                        oldValue.Add(info);
                    }

                    return oldValue;
                });
            }
            else
            {
                if (!collectedSeries.ContainsKey(existingKey))
                {
                    collectedSeries.Add(existingKey, new List<ParserInfo>() {info});
                }
                else
                {
                    var list = collectedSeries[existingKey];
                    if (!list.Contains(info))
                    {
                        list.Add(info);
                    }

                    collectedSeries[existingKey] = list;
                }

            }

        }
    }
}