stapix

diff --git a/.gitignore b/.gitignore
@@ -1 +1,3 @@
 /target
+/photos
+photos.yml

diff --git a/src/main.rs b/src/main.rs
@@ -1,14 +1,60 @@
+use std::{io, env};
+use std::process::exit;
+use std::fs::File;
 use picture_info::PictureInfo;
 use serde_yaml;
 
 mod picture_info;
 
-fn main() {
-    let yaml = "
-        - path: \"photos/pic.jpg\"
-        - path: \"photos/another-pic.png\"
-        ";
-    let pic_info: Vec<PictureInfo> = serde_yaml::from_str(yaml).unwrap();
+fn main() -> io::Result<()> {
+    let args: Vec<String> = env::args().collect();
 
-    println!("{pic_info:?}");
+    let config = match args.len() {
+        2 => &args[1],
+        1 => {
+            // TODO: Print usage info
+            eprintln!("ERROR: Expected one command line argument, found none");
+            exit(1)
+        },
+        _ => {
+            // TODO: Print usage info
+            eprintln!("ERROR: Expected one command line argument, found many");
+            exit(1)
+        },
+    };
+
+    let f = File::open(config);
+    match f.map(serde_yaml::from_reader::<_, Vec<PictureInfo>>) {
+        // Error opening the config file
+        Err(err) => {
+            eprintln!("ERROR: {err}");
+            Err(err)
+        },
+        // Error parsing the config file
+        Ok(Err(err)) => {
+            eprintln!("ERROR: {err}");
+            exit(1)
+        },
+        Ok(Ok(pic_infos)) => render_gallery(pic_infos),
+    }
+}
+
+/// Coordinates the rendering of all the pages and file conversions
+fn render_gallery(pic_infos: Vec<PictureInfo>) -> io::Result<()> {
+    render_index(&pic_infos)?;
+
+    for pic in pic_infos {
+        render_pic_page(&pic)?;
+    }
+
+    Ok(())
+}
+
+fn render_index(pic_infos: &Vec<PictureInfo>) -> io::Result<()> {
+    for pic in pic_infos { println!("{pic:?}"); }
+    Ok(())
+}
+
+fn render_pic_page(_pic: &PictureInfo) -> io::Result<()> {
+    Ok(())
 }