From dba149888be658eba717ef4f71b750c4e4e00b59 Mon Sep 17 00:00:00 2001
From: Alpha Chen <alpha.chen@gmail.com>
Date: Sun, 11 Dec 2016 21:43:01 -0500
Subject: [PATCH] [2016][rust][10.0] start parsing bots

---
 2016/rust/src/day_10.rs | 40 ++++++++++++++++++++++++++++++++++++++++
 2016/rust/src/lib.rs    |  1 +
 2016/rust/src/main.rs   |  2 +-
 3 files changed, 42 insertions(+), 1 deletion(-)
 create mode 100644 2016/rust/src/day_10.rs

diff --git a/2016/rust/src/day_10.rs b/2016/rust/src/day_10.rs
new file mode 100644
index 0000000..e1a30c9
--- /dev/null
+++ b/2016/rust/src/day_10.rs
@@ -0,0 +1,40 @@
+use regex::Regex;
+
+use errors::*;
+
+pub fn solve(input: &str) -> Result<String> {
+  Ok("".into())
+}
+
+struct Factory {
+  bots: Vec<usize>,
+}
+
+impl Factory {
+  fn parse(input: &str) -> Result<Self> {
+    let re = Regex::new(r"bot (\d+) gives low to (bot|output) (\d+) and high to (bot|output) (\d+)").unwrap();
+
+    let mut bots = Vec::new();
+    for line in input.lines() {
+      if let Some(caps) = re.captures(line) {
+        bots.push(0);
+      }
+    }
+    Ok(Factory { bots: bots })
+  }
+}
+
+#[test]
+fn test_factory() {
+  let input = "value 5 goes to bot 2
+bot 2 gives low to bot 1 and high to bot 0
+value 3 goes to bot 1
+bot 1 gives low to output 1 and high to bot 0
+bot 0 gives low to output 2 and high to output 0
+value 2 goes to bot 2";
+  let factory = Factory::parse(input).unwrap();
+
+  assert_eq!(factory.bots.len(), 3);
+
+  // After running, outputs are 5, 2, 3.
+}
diff --git a/2016/rust/src/lib.rs b/2016/rust/src/lib.rs
index 3ff0012..9da1125 100644
--- a/2016/rust/src/lib.rs
+++ b/2016/rust/src/lib.rs
@@ -15,3 +15,4 @@ pub mod day_05;
 pub mod day_06;
 pub mod day_07;
 pub mod day_08;
+pub mod day_10;
diff --git a/2016/rust/src/main.rs b/2016/rust/src/main.rs
index d984eee..4fe02bc 100644
--- a/2016/rust/src/main.rs
+++ b/2016/rust/src/main.rs
@@ -10,7 +10,7 @@ fn main() {
     let mut input = String::new();
     io::stdin().read_to_string(&mut input).ok();
 
-    let solution = day_08::solve(&input)?;
+    let solution = day_10::solve(&input)?;
     println!("{}", solution);
 
     Ok(())