AdventOfCodeStupidJsonParser.cs

using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.IO;
using System.Linq;
using Newtonsoft.Json.Linq;

namespace Table
{
    [DebuggerDisplay("{name} | {local_score} | #{id}")]
    class Person
    {
        public int global_score;
        public int local_score;
        public int stars;
        public int id;
        public long last_star_ts;
        public Dictionary<int, Dictionary<int, Result>> completion_day_level;
        public string name;

        public bool HasResultForDay(int dayNumber)
        {
            return completion_day_level.ContainsKey(dayNumber);
        }

        public Result ResultFor(int dayNumber, int problem)
        {
            if (completion_day_level.TryGetValue(dayNumber, out var problems))
                if (problems.TryGetValue(problem, out var result))
                    return result;

            return new Result {get_star_ts = -1};
        }

        public Result DeltaFor(int dayNumber)
        {
            var part2 = ResultFor(dayNumber, 2);
            var part1 = ResultFor(dayNumber, 1);

            if (part2.get_star_ts == -1 || part1.get_star_ts == -1)
                return new Result {get_star_ts = -1};

            return new Result {get_star_ts = part2.get_star_ts - part1.get_star_ts};
        }

        public int StarsFor(int dayNumber)
        {
            if (ResultFor(dayNumber, 2).get_star_ts != -1)
                return 2;
            return ResultFor(dayNumber, 1).get_star_ts != -1 ? 1 : 0;
        }
    }

    [DebuggerDisplay("{get_star_ts}")]
    internal class Result : IComparable<Result>
    {
        public long get_star_ts;

        public int CompareTo(Result other)
        {
            return get_star_ts.CompareTo(other.get_star_ts);
        }

        public override string ToString()
        {
            return DateTimeOffset.FromUnixTimeSeconds(get_star_ts).ToString("HH:mm:ss dd MMM");
        }

        public string ToShortTimeString()
        {
            return DateTimeOffset.FromUnixTimeSeconds(get_star_ts).ToString("HH:mm:ss");
        }
    }

    internal class Program
    {
        public static void Main(string[] args)
        {
            // https://adventofcode.com/2019/leaderboard/private/view/18994.json
            var json = File.ReadAllText("json.json");

            var o = JObject.Parse(json);
            var ppl = o["members"].ToObject<Dictionary<int, JObject>>().Values.Select(p => p.ToObject<Person>()).ToArray();

            for (var dayNumber = 1; dayNumber <= 31; dayNumber++)
            {
                var pplThisDay = ppl.Where(p => p.HasResultForDay(dayNumber))
                                    .OrderByDescending(p => p.StarsFor(dayNumber))
                                    .ThenBy(p => p.ResultFor(dayNumber, 2))
                                    .ThenBy(p => p.ResultFor(dayNumber, 1))
                                    .ToArray();

                if (!pplThisDay.Any())
                    break;

                var pplThisDaySorted1 = pplThisDay.Select(p => p.ResultFor(dayNumber, 1).get_star_ts).Where(ts => ts != -1).OrderBy(p => p).ToArray();
                var pplThisDaySorted2 = pplThisDay.Select(p => p.ResultFor(dayNumber, 2).get_star_ts).Where(ts => ts != -1).OrderBy(p => p).ToArray();
                var pplThisDayDelta12 = pplThisDay.Select(p => p.DeltaFor(dayNumber).get_star_ts).Where(ts => ts != -1).OrderBy(p => p).ToArray();

                Console.WriteLine($"DAY {dayNumber}");

                foreach (var p in pplThisDay)
                {
                    Console.Write($"{p.global_score, 3} {p.local_score, 5} {p.name, 25}  ");

                    var res1 = p.ResultFor(dayNumber, 1);
                    if (res1.get_star_ts != -1)
                        Console.Write($"{res1}  #{Array.IndexOf(pplThisDaySorted1, res1.get_star_ts) + 1, 3}");

                    Console.Write("  |  ");

                    var res2 = p.ResultFor(dayNumber, 2);
                    var delta = p.DeltaFor(dayNumber);
                    if (res2.get_star_ts != -1)
                        Console.Write($"{res2} #{Array.IndexOf(pplThisDaySorted2, res2.get_star_ts) + 1, 3} ({delta.ToShortTimeString()} second part #{Array.IndexOf(pplThisDayDelta12, delta.get_star_ts) + 1, 3})");

                    Console.WriteLine();
                }

                Console.WriteLine();
            }
        }
    }
}