feat: add minijinja as template engine

src/lib.rs

@@ -1,3 +1,28 @@
 mod error;
+pub mod router;
 
 pub use error::{Error, Result, ResultTemplate};
+use minijinja::{Environment, Template};
+use serde::{Deserialize, Serialize};
+use std::sync::Arc;
+
+#[derive(Serialize, Deserialize, Debug)]
+pub struct Link {
+    pub path: String,
+    pub text: String,
+    pub subpages: Vec<Self>,
+}
+
+pub struct AppState {
+    tmpl_env: Environment<'static>,
+}
+
+impl AppState {
+    pub fn new(tmpl_env: Environment<'static>) -> Arc<Self> {
+        Arc::new(AppState { tmpl_env })
+    }
+
+    pub fn get_template(&self, name: &str) -> Result<Template> {
+        Ok(self.tmpl_env.get_template(name)?)
+    }
+}