Initial

src/days/mod.rs

@@ -0,0 +1,38 @@
+use anyhow::Result;
+
+use self::{day01::Day, template::DayTrait};
+use thiserror::Error;
+
+pub use template::ResultType;
+
+mod day01;
+mod template;
+
+#[derive(Debug, Error)]
+pub enum TemplateError {
+    #[error("Not a valid day number: {0}")]
+    InvalidNumber(usize),
+}
+
+pub struct DayProvider {
+    days: Vec<Box<dyn DayTrait>>,
+}
+
+impl DayProvider {
+    pub fn create() -> DayProvider {
+        DayProvider {
+            days: vec![Box::new(Day)],
+        }
+    }
+
+    pub fn get_day(&self, day_num: usize) -> Result<&Box<dyn DayTrait>> {
+        Ok(self
+            .days
+            .get(day_num - 1)
+            .ok_or(TemplateError::InvalidNumber(day_num))?)
+    }
+
+    pub fn get_all_days(&self) -> &[Box<dyn DayTrait>] {
+        &self.days
+    }
+}