From 1ed618e300265f4237a0b58040aa58a006ab7fcb Mon Sep 17 00:00:00 2001
From: mehbark <terezi@pyrope.net>
Date: Mon, 22 Dec 2025 13:43:17 -0500
Subject: [PATCH] initial

---
 .gitignore  |  1 +
 Cargo.lock  |  7 +++++++
 Cargo.toml  |  6 ++++++
 README.md   |  4 ++++
 src/main.rs | 51 +++++++++++++++++++++++++++++++++++++++++++++++++++
 5 files changed, 69 insertions(+)
 create mode 100644 .gitignore
 create mode 100644 Cargo.lock
 create mode 100644 Cargo.toml
 create mode 100644 README.md
 create mode 100644 src/main.rs

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..ea8c4bf
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+/target
diff --git a/Cargo.lock b/Cargo.lock
new file mode 100644
index 0000000..b408ff4
--- /dev/null
+++ b/Cargo.lock
@@ -0,0 +1,7 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 4
+
+[[package]]
+name = "blue-uncurse"
+version = "0.1.0"
diff --git a/Cargo.toml b/Cargo.toml
new file mode 100644
index 0000000..97f2e49
--- /dev/null
+++ b/Cargo.toml
@@ -0,0 +1,6 @@
+[package]
+name = "blue-uncurse"
+version = "0.1.0"
+edition = "2024"
+
+[dependencies]
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..fd2414d
--- /dev/null
+++ b/README.md
@@ -0,0 +1,4 @@
+# blue uncurse
+output lines of less than 2000 characters (suitable for discord messages) that contain every four-letter word in `etoaisnhrldum`, so you can get blue uncursed.
+
+<https://github.com/mehbark/homelab/blob/856f6f327bb1bc7a1f5dd37370dd041d38ebb840/bots/puyo.ts#L799-L808>
diff --git a/src/main.rs b/src/main.rs
new file mode 100644
index 0000000..6d31acc
--- /dev/null
+++ b/src/main.rs
@@ -0,0 +1,51 @@
+use std::collections::HashSet;
+
+const LETTERS: [u8; 13] = *b"etoaisnhrldum";
+
+fn overlap(first: &[u8], second: &[u8]) -> usize {
+    if &first[first.len().saturating_sub(second.len())..] == second {
+        second.len()
+    } else {
+        overlap(first, &second[..second.len() - 1])
+    }
+}
+
+fn main() {
+    let mut remaining = HashSet::new();
+
+    for a in LETTERS {
+        for b in LETTERS {
+            for c in LETTERS {
+                for d in LETTERS {
+                    remaining.insert([a, b, c, d]);
+                }
+            }
+        }
+    }
+
+    eprintln!("words: {}", remaining.len());
+
+    let mut last = *b"aaaa";
+    remaining.remove(&last);
+
+    let mut output = String::from_utf8_lossy(&last).to_string();
+
+    while let Some(word) = remaining
+        .iter()
+        .max_by_key(|word| overlap(&last, &word[..]))
+    {
+        let word = *word;
+        remaining.remove(&word);
+        let added = &word[overlap(&last, &word[..])..];
+        last = word;
+        output.push_str(&String::from_utf8_lossy(added));
+
+        if output.len() > 1996 {
+            println!("{output}");
+            output.clear();
+            output.push_str(&String::from_utf8_lossy(&word));
+        }
+    }
+
+    println!("{output}");
+}