From 4acdf43eb1f557239566185a6c211a198d6d7520 Mon Sep 17 00:00:00 2001
From: Amatsugu <khamraj@kaisei.app>
Date: Sun, 14 Dec 2025 15:43:09 -0500
Subject: [PATCH] day 8 wip

---
 .../Problems/AOC2025/Day8/Playground.cs       | 65 +++++++++++++++++++
 AdventOfCode/Program.cs                       |  2 +-
 2 files changed, 66 insertions(+), 1 deletion(-)
 create mode 100644 AdventOfCode/Problems/AOC2025/Day8/Playground.cs

diff --git a/AdventOfCode/Problems/AOC2025/Day8/Playground.cs b/AdventOfCode/Problems/AOC2025/Day8/Playground.cs
new file mode 100644
index 0000000..2cd0246
--- /dev/null
+++ b/AdventOfCode/Problems/AOC2025/Day8/Playground.cs
@@ -0,0 +1,65 @@
+using AdventOfCode.Utils.Models;
+
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace AdventOfCode.Problems.AOC2025.Day8;
+
+[ProblemInfo(2025, 8, "Playground")]
+internal class Playground : Problem<long, long>
+{
+	private Vec3<int>[] _boxPositions= [];
+
+	public override void CalculatePart1()
+	{
+		var boxes = _boxPositions.Select((p, i) => new JunctionBox(i, p, []));
+		var closest = GetClosestPairs(_boxPositions, 10);
+		foreach (var (a, b)in closest)
+		{
+			var boxA = boxes.First(box => box.Pos == a);
+			var boxB = boxes.First(box => box.Pos == b);
+			boxA.Connections.Add(boxB.Id);
+			boxB.Connections.Add(boxA.Id);
+		}
+
+	}
+
+	private static long[] TraceNetworks(JunctionBox[] junctionBoxes)
+	{
+		return [];
+	}
+
+	private static List<(Vec3<int> a , Vec3<int> b)> GetClosestPairs(Vec3<int>[] boxes, int count = 10)
+	{
+		var distances = new Dictionary<(Vec3<int> a, Vec3<int> b), double>();
+
+		for (int i = 0; i < boxes.Length; i++)
+		{
+			var a = boxes[i];
+			for (int j = (i + 1); j < boxes.Length; j++)
+			{
+				var b = boxes[j];
+				if (distances.ContainsKey((a, b)) || distances.ContainsKey((b, a)))
+					continue;
+				distances.Add((a, b), Math.Sqrt(a.DistanceSq(b)));
+			}
+		}
+		return distances.OrderBy(v => v.Value).Take(count).Select(v => v.Key).ToList();
+	}
+
+	public override void CalculatePart2()
+	{
+		throw new NotImplementedException();
+	}
+
+	public override void LoadInput()
+	{
+		_boxPositions = ReadInputLines("sample.txt")
+			.Select(l => l.Split(',').Select(int.Parse))
+			.Select(c => new Vec3<int>(c.First(), c.Skip(1).First(), c.Last()))
+			.ToArray();
+	}
+
+	private record JunctionBox(int Id, Vec3<int> Pos, HashSet<int> Connections);
+}
diff --git a/AdventOfCode/Program.cs b/AdventOfCode/Program.cs
index 29d0831..125614e 100644
--- a/AdventOfCode/Program.cs
+++ b/AdventOfCode/Program.cs
@@ -4,4 +4,4 @@ global using AdventOfCode.Utils;
 
 
 var runner = new AOCRunner();
-runner.WithDay(7).RenderInteractiveMenu();
+runner.WithDay(8).RenderInteractiveMenu();