From 6eb1ecc2120f999e4b418ad1633760e0dbd3c2e3 Mon Sep 17 00:00:00 2001
From: Sxtanna <ranald.taylor@gmail.com>
Date: Sat, 25 Jul 2020 22:35:56 -0400
Subject: [PATCH] Implemented general purpose table utility

---
 .../me/clip/placeholderapi/util/Format.java   | 58 +++++++++++++++++++
 1 file changed, 58 insertions(+)
 create mode 100644 src/main/java/me/clip/placeholderapi/util/Format.java

diff --git a/src/main/java/me/clip/placeholderapi/util/Format.java b/src/main/java/me/clip/placeholderapi/util/Format.java
new file mode 100644
index 0000000..20967f4
--- /dev/null
+++ b/src/main/java/me/clip/placeholderapi/util/Format.java
@@ -0,0 +1,58 @@
+package me.clip.placeholderapi.util;
+
+import org.jetbrains.annotations.NotNull;
+
+import java.util.List;
+import java.util.Optional;
+
+import static java.lang.Math.max;
+import static java.lang.Math.min;
+import static java.util.Arrays.stream;
+import static java.util.stream.Collectors.joining;
+import static java.util.stream.Collectors.toList;
+import static java.util.stream.IntStream.range;
+
+/**
+ * For the record, I am not sorry.
+ */
+public final class Format
+{
+
+	private Format()
+	{}
+
+
+	public enum Align
+	{
+		LEFT, RIGHT
+	}
+
+
+	@NotNull
+	public static Optional<List<String>> tablify(@NotNull final Align align, @NotNull final List<List<String>> rows)
+	{
+		return findSpacing(rows)
+				.map(spacing -> buildFormat(align, spacing))
+				.map(format -> rows.stream()
+								   .map(row -> String.format(format, row.toArray()).substring(align == Align.RIGHT ? 2 : 0))
+								   .collect(toList()));
+	}
+
+
+	@NotNull
+	private static String buildFormat(@NotNull final Align align, @NotNull final int[] spacing)
+	{
+		return stream(spacing)
+				.mapToObj(space -> "%" + (align == Align.LEFT ? "-" : "") + (space + 2) + "s")
+				.collect(joining());
+	}
+
+	@NotNull
+	private static Optional<int[]> findSpacing(@NotNull final List<List<String>> rows)
+	{
+		return rows.stream()
+				   .map(row -> row.stream().mapToInt(String::length).toArray())
+				   .reduce((l, r) -> range(0, min(l.length, r.length)).map(i -> max(l[i], r[i])).toArray());
+	}
+
+}