extracted writing files into its own function

Cargo.toml

@@ -2,9 +2,11 @@
 name = "lf-builder"
 version = "0.1.0"
 edition = "2021"
-authors = [ "Alina Marquardt" ]
+authors = [ "Alina Marquardt <lastfuture@lastfuture.de>" ]
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
 chrono = "0.4.24"
+json = "0.12.4"
+mustache = "0.9.0"

src/main.rs

@@ -6,41 +6,47 @@ use std::time::Instant;
 const PUBLISH_PATH: &str = "./pub/";
 const TEMPLATE_PATH: &str = "./src/templates/";
 
-fn render_html(file: &str, template: &str, data: Vec<i32>) -> Result<(), Error> {
+fn render_html(file: &str, template_file: &str) {
     let output_path = &format!("{}{}", PUBLISH_PATH, file);
-    let template_path = &format!("{}{}", TEMPLATE_PATH, template);
+    let template_path = &format!("{}{}", TEMPLATE_PATH, template_file);
 
     let now = Instant::now();
-    // TODO: Templating with template and data
+    // TODO: Generate HTML with template and data
     let html_string = "<h1>Hello!</h1>";
-    let elapsed = now.elapsed();
 
-    let mut output_file = File::create(output_path)?;
-    write!(output_file,
-"{}\n
-<!--\n
-{}\n
-{}\n
-generated in {:.2?}\n
--->",
+    let output = format!(
+        "{}\n\n<!--\n  {}\n  {}\n  generated in {:.2?}\n-->",
         html_string,
-        template,
+        template_path,
         chrono::offset::Local::now(),
-        elapsed
-    )?;
+        now.elapsed(),
+    );
 
+    let result = write_file(output_path, output);
+    match result {
+        Ok(file) => file,
+        Err(e) => panic!("Problem creating {:?}", e)
+    }
+
+    /*
     let input = File::open(output_path)?;
     let buffered = BufReader::new(input);
 
     for line in buffered.lines() {
         println!("{}", line?);
     }
+    */
 
+}
+
+fn write_file(file_path: &str, contents: String) -> Result<(), Error> {
+    let mut output_file = File::create(file_path)?;
+    write!(output_file, "{}", contents)?;
     Ok(())
 }
 
 fn main() {
 
-    render_html("index.html", "index.tmpl", vec![1, 2, 3]);
+    render_html("index.html", "index.tmpl");
 
 }