[WIP] Day 7

input/day7_example.txt

@@ -0,0 +1,23 @@
+$ cd /
+$ ls
+dir a
+14848514 b.txt
+8504156 c.dat
+dir d
+$ cd a
+$ ls
+dir e
+29116 f
+2557 g
+62596 h.lst
+$ cd e
+$ ls
+584 i
+$ cd ..
+$ cd ..
+$ cd d
+$ ls
+4060174 j
+8033020 d.log
+5626152 d.ext
+7214296 k

src/day7.rs

@@ -0,0 +1,81 @@
+use crate::day_solver::DaySolver;
+
+use super::util;
+
+#[derive(Debug)]
+enum FileSystemEntry {
+    File {
+        name: String,
+        size: usize
+    },
+    Directory {
+        name: String,
+    }
+}
+
+#[derive(Debug)]
+enum Command {
+    LS { result: Vec<FileSystemEntry> },
+    CD { target: String }
+}
+
+pub struct Day7 {
+    commands: Vec<Command>
+}
+
+impl Day7 {
+
+    pub fn create() -> Self {
+        let lines = util::read_file("input/day7_example.txt");
+        // let lines = util::read_file("input/day7.txt");
+
+        let mut lines_iter = lines.iter().peekable();
+        let mut commands = Vec::new();
+        while let Some(line) = lines_iter.next() {
+            if  line == "$ ls" {
+                let mut result = Vec::new();
+                if let Some(result_line) = lines_iter.peek() {
+                    if !result_line.starts_with("$") {
+                        if result_line.starts_with("dir") {
+                            result.push(FileSystemEntry::Directory {
+                                name: result_line.split_whitespace().skip(1).next().unwrap().to_string()
+                            })
+                        } else {
+                            let mut result_split = result_line.split_whitespace();
+                            result.push(FileSystemEntry::File {
+                                size: result_split.next().unwrap().parse::<usize>().unwrap(),
+                                name: result_split.next().unwrap().to_owned()
+                            });
+                        }
+                        lines_iter.next();
+                    }
+                }
+                commands.push(Command::LS {
+                    result
+                });
+            } else if line.starts_with("$ cd") {
+                commands.push(Command::CD {
+                    target: line.chars().skip(5).collect()
+                });
+            }
+        }
+
+        println!("{:?}", commands);
+        // Put the input into the day struct
+        return Day7 {
+            commands
+        }
+    }
+}
+
+impl DaySolver for Day7 {
+
+
+    fn solve_part1(&mut self) -> String {
+        return 0.to_string();
+    }
+
+    fn solve_part2(&mut self) -> String {
+        return 0.to_string();
+    }
+}

src/main.rs

@@ -5,6 +5,7 @@ use crate::day3::Day3;
 use crate::day4::Day4;
 use crate::day5::Day5;
 use crate::day6::Day6;
+use crate::day7::Day7;
 use crate::day_solver::DaySolver;
 
 mod util;
@@ -15,8 +16,9 @@ mod day3;
 mod day4;
 mod day5;
 mod day6;
+mod day7;
 
-const MAX_DAY: u8 = 5;
+const MAX_DAY: u8 = 7;
 const DEFAULT_BENCHMARK_AMOUNT: u32 = 100;
 
 fn main() {
@@ -86,6 +88,7 @@ fn build_day_solver(day: u8) -> Option<Box<dyn DaySolver>> {
         4 => Some(Box::new(Day4::create())),
         5 => Some(Box::new(Day5::create())),
         6 => Some(Box::new(Day6::create())),
+        7 => Some(Box::new(Day7::create())),
         _ => None
     }
 }