3 files changed, 97 insertions, 19 deletions
diff --git a/src/main.rs b/src/main.rs
index 9d4a4f4..6947482 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,39 +1,88 @@
+use handlebars::Handlebars;
 use hyper::service::{make_service_fn, service_fn};
+use hyper::Method;
+use hyper::StatusCode;
 use hyper::{Body, Request, Response, Server};
+use serde::{Deserialize, Serialize};
 use std::convert::Infallible;
 use std::net::SocketAddr;
 
+mod templates;
+
 #[tokio::main]
 async fn main() {
-    // We'll bind to 127.0.0.1:3000
+    // bind to 127.0.0.1:3000
     let addr = SocketAddr::from(([127, 0, 0, 1], 3000));
 
-    // A `Service` is needed for every connection, so this
-    // creates one from our `hello_world` function.
-    let make_svc = make_service_fn(|_conn| async {
-        // service_fn converts our function into a `Service`
-        Ok::<_, Infallible>(service_fn(hello_world))
-    });
+    let make_svc = make_service_fn(|_conn| async { Ok::<_, Infallible>(service_fn(router)) });
 
-    // And construct the `Server` like normal...
     let server = Server::bind(&addr).serve(make_svc);
-
-    // And now add a graceful shutdown signal...
     let graceful = server.with_graceful_shutdown(shutdown_signal());
 
-    // Run this server for... forever!
+    // run until shutdown signal
     if let Err(e) = graceful.await {
         eprintln!("server error: {}", e);
     }
 }
 
-async fn hello_world(_req: Request<Body>) -> Result<Response<Body>, Infallible> {
-    Ok(Response::new("Hello, World".into()))
+async fn router(req: Request<Body>) -> Result<Response<Body>, Infallible> {
+    match (req.method(), req.uri().path()) {
+        (&Method::GET, "/") | (&Method::GET, "/index.html") => Ok(Response::new("Welcome!".into())),
+        (&Method::GET, "/parts") | (&Method::GET, "/parts/index.html") => parts(req).await,
+        _ => Ok(Response::builder()
+            .status(StatusCode::NOT_FOUND)
+            .body("Not found.".into())
+            .unwrap()),
+    }
+}
+
+async fn parts(req: Request<Body>) -> Result<Response<Body>, Infallible> {
+    let query = req.uri().query().unwrap_or_default();
+    let filter = serde_urlencoded::de::from_str::<PartsRequest>(query).unwrap();
+    dbg!(&query, &filter);
+    let mut reg = Handlebars::new();
+    reg.register_template_string("index", templates::INDEX_T)
+        .unwrap();
+    let mut data = PartsView::default();
+    data.makes = Some(vec!["Hudson".into(), "Essex".into()]);
+
+    if let Some(make) = filter.make {
+        if make.eq("Hudson") {
+            data.models = Some(vec!["Hornet".into(), "Wasp".into(), "Jet".into()]);
+        } else if make.eq("Essex") {
+            data.models = Some(vec!["Super Six".into()]);
+        }
+        data.selected_make = Some(make);
+    }
+
+    data.parts = Some(Vec::new());
+    if let Some(model) = filter.model {
+        data.parts = Some(vec!["1".into(), "2".into(), "3".into()]);
+        data.selected_model = Some(model);
+    }
+
+    let result = reg.render("index", &data).unwrap();
+    Ok(Response::new(result.into()))
 }
 
 async fn shutdown_signal() {
-    // Wait for the CTRL+C signal
+    // Wait for CTRL+C
     tokio::signal::ctrl_c()
         .await
         .expect("failed to install CTRL+C signal handler");
 }
+
+#[derive(Debug, Deserialize)]
+struct PartsRequest {
+    make: Option<String>,
+    model: Option<String>,
+}
+
+#[derive(Debug, Serialize, Default)]
+struct PartsView {
+    makes: Option<Vec<String>>,
+    models: Option<Vec<String>>,
+    selected_make: Option<String>,
+    selected_model: Option<String>,
+    parts: Option<Vec<String>>,
+}
diff --git a/src/templates/index.html b/src/templates/index.html
index 7b6070c..6b2f54a 100644
--- a/src/templates/index.html
+++ b/src/templates/index.html
@@ -1,10 +1,38 @@
 <!DOCTYPE html>
 <html>
+  <head>
+    <meta charset="UTF-8" />
+
+    <style>
+      input[type="submit"] {
+        display: block;
+      }
+    </style>
+  </head>
   <body>
-    <ul>
-      <li>Essex</li>
-      <li>Hudson</li>
-      <li>Terraplane</li>
-    </ul>
+    <h1>Parts Catalog</h1>
+    <form action="/parts">
+      <ul>
+        {{#each makes}}
+        <li>
+          <input type="submit" name="make" value="{{ this }}" />
+          {{#if (eq this "Hudson")}}
+          <ul>
+            <input type="hidden" name="make" value="{{ selected_make }}" />
+            {{#each models}}
+            <li>
+              <input type="submit" name="model" value="{{ this }}" />
+            </li>
+            {{else}}
+            No models found.
+            {{/each}}
+          </ul>
+          {{/if}}
+        </li>
+        {{else}}
+        No makes found.
+        {{/each}}
+      </ul>
+    </form>
   </body>
 </html>
diff --git a/src/templates/mod.rs b/src/templates/mod.rs
new file mode 100644
index 0000000..1a594fb
--- /dev/null
+++ b/src/templates/mod.rs
@@ -0,0 +1 @@
+pub static INDEX_T: &str = include_str!("index.html");