using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.IO;
using Luneraria.Core;

/// <summary>
/// Measures the C# rules: one combat step at representative maximum occupation (round 13,
/// six armies at the supply cap, the same fixture as the Godot benchmark probe) and complete
/// bot matches. Usage: dotnet run -c Release --project tools/dotnet/Luneraria.Core.Bench [out.json]
/// </summary>
public static class Program
{
    public static int Main(string[] args)
    {
        var probe = new LuneMatch();
        probe.Setup(new MatchOptions { Seed = 5, HumanSlot = -1 });
        probe.RoundNumber = 13;
        for (int slot = 0; slot < 6; slot++)
        {
            probe.Players[slot].Draft.Gold = 100000;
            LuneBot.Plan(probe, slot, "ausgewogen");
        }
        probe.BeginCombat();
        int units = probe.Combat.MobileCount();
        for (int i = 0; i < 50; i++)
            probe.StepCombat();
        var samples = new List<double>();
        for (int block = 0; block < 5; block++)
        {
            var fresh = new LuneMatch();
            fresh.Setup(new MatchOptions { Seed = 5, HumanSlot = -1 });
            fresh.RoundNumber = 13;
            for (int slot = 0; slot < 6; slot++)
            {
                fresh.Players[slot].Draft.Gold = 100000;
                LuneBot.Plan(fresh, slot, "ausgewogen");
            }
            fresh.BeginCombat();
            var clock = Stopwatch.StartNew();
            for (int i = 0; i < 200; i++)
                fresh.StepCombat();
            clock.Stop();
            samples.Add(clock.Elapsed.TotalMilliseconds / 200.0);
        }
        samples.Sort();
        double stepMs = samples[samples.Count / 2];
        var matchClock = Stopwatch.StartNew();
        int rounds = 0;
        foreach (int seed in new[] { 1, 2, 3 })
        {
            var match = new LuneMatch();
            match.Setup(new MatchOptions { Seed = seed, HumanSlot = -1 });
            while (match.Phase != Phase.Over && match.RoundNumber <= 60)
            {
                for (int slot = 0; slot < 6; slot++)
                    LuneBot.Plan(match, slot);
                match.BeginCombat();
                match.FinishCombat();
                rounds++;
            }
        }
        matchClock.Stop();
        string json = string.Format(System.Globalization.CultureInfo.InvariantCulture,
            "{{\n  \"runtime\": \"{0}\",\n  \"cpu\": \"{1}\",\n  \"mobile_units_at_start\": {2},\n  \"sim_step_ms_median\": {3:0.0000},\n  \"step_blocks_ms\": [{4}],\n  \"bot_matches_seeds_1_2_3_ms\": {5:0.0},\n  \"bot_match_rounds\": {6},\n  \"ms_per_round\": {7:0.00}\n}}\n",
            System.Runtime.InteropServices.RuntimeInformation.FrameworkDescription, System.Runtime.InteropServices.RuntimeInformation.OSArchitecture,
            units, stepMs, string.Join(", ", samples.ConvertAll(s => s.ToString("0.0000", System.Globalization.CultureInfo.InvariantCulture))),
            matchClock.Elapsed.TotalMilliseconds, rounds, matchClock.Elapsed.TotalMilliseconds / rounds);
        Console.Write(json);
        if (args.Length > 0)
            File.WriteAllText(args[0], json);
        return 0;
    }
}