big bang

src/util/config.rs

@@ -0,0 +1,33 @@
+use std::{fs, io::Write};
+
+use serde::{Deserialize, Serialize};
+use std::error::Error;
+
+#[derive(Deserialize, Serialize)]
+pub struct Config {
+    pub discord_token: String
+}
+
+const CONFIG_FILE: &str = "./data/config.json";
+
+pub fn load() -> Result<Config, Box<dyn Error>> {
+    // TODO: load config, create empty config if there is no config, stop if there is no complete config
+    let config_file = match fs::File::open(CONFIG_FILE) {
+        Ok(file) => file,
+        Err(_) => create_empty()
+    };
+    let config_file = serde_json::from_reader(config_file).unwrap();
+    Ok(config_file)
+}
+
+fn create_empty() -> fs::File{
+    let example_config = Config {
+        discord_token: "paste_your_config".to_string()
+    };
+
+    let mut config_file = fs::File::create(CONFIG_FILE).unwrap();
+    let file_content = serde_json::to_string(&example_config).unwrap();
+    config_file.write_all(&file_content.as_bytes()).unwrap();
+
+    panic!("There is no config. But now there is a template.")
+}

src/util/mod.rs

@@ -0,0 +1 @@
+pub mod config;