Program.cs

using System.Text.Json;

class Core
{
    static void Main(string[] args)
    {
        var logFile = File.ReadAllText(args[0]);

        logFile = logFile.Replace("\r\n", "\n"); // idk man

        var splits = logFile.Split($"\ncommit ");

        List<Commit> commits = new();
        foreach (var split in splits)
        {
            var commit = new Commit(split.Split("\n"));
            commits.Add(commit);
        }

        var updates = commits.SelectMany(x => x.Updates);
        var includedMods = updates.Select(x => x.Repo).Distinct();

        List<Entry> entries = new();
        foreach (var mod in includedMods)
        {
            List<DownloadCountUpdate> countUpdates = new();
            foreach (var update in updates)
            {
                var isMod = update.Repo == mod;
                
                if (Offsets.oldRepos.ContainsKey(mod))
                {
                    isMod = isMod || Offsets.oldRepos[mod].Contains(update.Repo);
                }

                if (isMod)
                {
                    countUpdates.Add(new DownloadCountUpdate(((DateTimeOffset)update.Time).ToUnixTimeSeconds(), update.DownloadCount));
                }
            }

            if (Offsets.offsetBetween.ContainsKey(mod))
            {
                List<Offsets.Between> offsetBetween = Offsets.offsetBetween[mod];
                foreach (DownloadCountUpdate update in countUpdates)
                {
                    long unixTimestamp = update.UnixTimestamp;
                    foreach (var between in offsetBetween)
                    {
                        if (unixTimestamp > between.AfterUnixTimestamp && unixTimestamp <= between.BeforeUnixTimestamp)
                        {
                            update.DownloadCount += between.DownloadCount;
                        }
                    }
                }
            }

            if (Offsets.offsets.ContainsKey(mod))
            {
                countUpdates.AddRange(Offsets.offsets[mod]);
            }

            var entry = new Entry()
            {
                Repo = mod,
                Updates = countUpdates.ToArray()
            };

            entries.Add(entry);
        }

        var json = JsonSerializer.Serialize(entries);

        Console.WriteLine(json);
    }

    public static int GetNthIndex(string s, char t, int n)
    {
        var count = 0;
        for (var i = 0; i < s.Length; i++)
        {
            if (s[i] == t)
            {
                count++;
                if (count == n)
                {
                    return i;
                }
            }
        }

        return -1;
    }
}