deserializing envvar and stuff

src/main.rs

@@ -1,3 +1,65 @@
+use serde::{Deserialize, Serialize};
+use serde_json::Value;
+use std::{env, fs, path::Path, process};
+
 fn main() {
-    println!("Hello, world!");
+    let mut args = env::args();
+    let _binary = args.next();
+
+    while let Some(arg) = args.next() {
+        match arg.as_str() {
+            "add" => add(&mut args),
+            _other => println!("needs parameters"),
+        }
+    }
+    return;
+}
+
+fn deserialize_var() -> Library {
+    let key = "HOME";
+    let content: Library = match env::var(key) {
+        Ok(val) => match serde_json::from_str(&val) {
+            Ok(library) => library,
+            Err(..) => initialize_library(),
+        },
+        Err(..) => initialize_library(),
+    };
+    return content;
+}
+
+fn initialize_library() -> Library {
+    let default_shelf: Shelf = Shelf {
+        id: 0,
+        name: "default".to_string(),
+        content: Vec::new(),
+    };
+
+    let mut shelf_vec: Vec<Shelf> = Vec::new();
+    shelf_vec.push(default_shelf);
+    let default_library: Library = Library {
+        current_shelf: 0,
+        shelves: shelf_vec,
+    };
+    return default_library;
+}
+
+fn add(args: &mut env::Args) {
+    for file in args {
+        println!("Adding {}", &file);
+        let file_path = Path::new(&file);
+    }
+    process::exit(0)
+}
+
+#[derive(Default, Deserialize, Serialize)]
+struct Library {
+    current_shelf: u16,
+    shelves: Vec<Shelf>,
+}
+
+#[derive(Deserialize, Serialize)]
+struct Shelf {
+    id: u64,
+    name: String,
+    content: Vec<String>,
 }