loading environmen variable to config added

src/main.rs

@@ -1,3 +1,63 @@
-fn main() {
-    println!("Hello, world!");
+use dotenv::dotenv;
+use std::collections::HashMap;
+
+struct ListenBrainz {
+    discovery: String,
+    user: String,
+}
+
+pub struct Config {
+    listen_brainz: ListenBrainz,
+    url: String,
+    sleep: i32,
+    playlist_dir: String,
+    persist: bool,
+    system: String,
+    playlist_name: String,
+}
+
+struct Credentials {
+    api_key: String,
+    user: String,
+    password: String,
+    headers: HashMap<String, String>,
+    token: String,
+    salt: String,
+}
+
+struct Song {
+    title: String,
+    artist: String,
+    album: String,
+}
+
+struct Track {
+    album: String,
+    artist: String,
+    title: String,
+}
+
+fn main() {
+    dotenv().ok();
+    // let mailcoach_api_token = std::env::var("MAILCOACH_API_TOKEN").expect("MAILCOACH_API_TOKEN must be set.");
+    let cfg = construct_data();
+    let tracks: Option<Vec<Track>> = None;
+}
+
+fn construct_data() -> Config {
+    let lsb = ListenBrainz {
+        discovery: std::env::var("LISTENBRAINZ_DISCOVERY")
+            .expect("LISTENBRAINZ_DISCOVERY must be set."),
+        user: std::env::var("LISTENBRAINZ_USER").expect("LISTENBRAINZ_USER msut be set"),
+    };
+    let config = Config {
+        listen_brainz: lsb,
+        url: std::env::var("SYSTEM_USERNAME").expect("SYSTEM_USERNAME must be set"),
+        sleep: 1,
+        playlist_dir: std::env::var("PLAYLIST_DIR").expect("PLAYLIST_DIR must be set"),
+        persist: true,
+        system: std::env::var("NV_WEEKLY").expect("NV_WEEKLY must be set"),
+        playlist_name: "".to_string(),
+    };
+    return config;
 }