From 6cafbc79983e7935d360335c42df4e00df163dec Mon Sep 17 00:00:00 2001
From: Alina Marquardt <lastfuture@lastfuture.de>
Date: Mon, 10 Apr 2023 07:01:23 +0200
Subject: [PATCH] added basic mustache templating

---
 src/main.rs                  | 29 ++++++++++++++++++++++++-----
 src/templates/index.mustache |  1 +
 2 files changed, 25 insertions(+), 5 deletions(-)
 create mode 100644 src/templates/index.mustache

diff --git a/src/main.rs b/src/main.rs
index af95fe6..57e4b8e 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,27 +1,46 @@
+// for file I/O
 use std::fs::File;
 use std::io::{Write, BufReader, BufRead, Error};
+// for timestamping and profiling
 use chrono;
 use std::time::Instant;
+// for mustache
+use mustache;
+use std::str;
+use std::collections::HashMap;
 
 const PUBLISH_PATH: &str = "./pub/";
 const TEMPLATE_PATH: &str = "./src/templates/";
 
 fn render_html(file: &str, template_file: &str) {
+    let now = Instant::now(); // start profiling
     let output_path = &format!("{}{}", PUBLISH_PATH, file);
     let template_path = &format!("{}{}", TEMPLATE_PATH, template_file);
 
-    let now = Instant::now();
-    // TODO: Generate HTML with template and data
-    let html_string = "<h1>Hello!</h1>";
+    // templating
+    let template = mustache::compile_path(template_path).expect("Failed to compile");
+    
+    let mut data = HashMap::new();
+    data.insert("h1", "Hello World");
+
+    let mut bytes = vec![];
+
+    template
+        .render(&mut bytes, &data)
+        .expect("Failed to render");
+
+    let html_string = str::from_utf8(&bytes).unwrap();
 
     let output = format!(
-        "{}\n\n<!--\n  {}\n  {}\n  generated in {:.2?}\n-->",
+        "{}\n<!--\n  {}\n  {}\n  generated in {:.2?}\n-->",
         html_string,
         template_path,
         chrono::offset::Local::now(),
         now.elapsed(),
     );
 
+    // write output to file
+
     let result = write_file(output_path, output);
     match result {
         Ok(file) => file,
@@ -47,6 +66,6 @@ fn write_file(file_path: &str, contents: String) -> Result<(), Error> {
 
 fn main() {
 
-    render_html("index.html", "index.tmpl");
+    render_html("index.html", "index.mustache");
 
 }
diff --git a/src/templates/index.mustache b/src/templates/index.mustache
new file mode 100644
index 0000000..6f0fe73
--- /dev/null
+++ b/src/templates/index.mustache
@@ -0,0 +1 @@
+<h1>Page Title: {{ h1 }}</h1>