Rewrite to rust

src/config.rs

@@ -0,0 +1,66 @@
+use once_cell::sync::Lazy;
+
+pub struct Config {
+    pub api_key: String,
+
+    pub postgres_user: String,
+    pub postgres_password: String,
+    pub postgres_host: String,
+    pub postgres_port: u32,
+    pub postgres_db: String,
+
+    pub downloader_api_key: String,
+    pub downloader_url: String,
+
+    pub library_api_key: String,
+    pub library_url: String,
+
+    pub files_api_key: String,
+    pub files_url: String,
+
+    pub telegram_api_id: i32,
+    pub telegram_api_hash: String,
+    pub telegram_bot_tokens: Vec<String>,
+
+    pub sentry_dsn: String
+}
+
+
+fn get_env(env: &'static str) -> String {
+    std::env::var(env).unwrap_or_else(|_| panic!("Cannot get the {} env variable", env))
+}
+
+
+impl Config {
+    pub fn load() -> Config {
+        Config {
+            api_key: get_env("API_KEY"),
+
+            postgres_user: get_env("POSTGRES_USER"),
+            postgres_password: get_env("POSTGRES_PASSWORD"),
+            postgres_host: get_env("POSTGRES_HOST"),
+            postgres_port: get_env("POSTGRES_PORT").parse().unwrap(),
+            postgres_db: get_env("POSTGRES_DB"),
+
+            downloader_url: get_env("DOWNLOADER_API_KEY"),
+            downloader_api_key: get_env("DOWNLOADER_URL"),
+
+            library_api_key: get_env("LIBRARY_API_KEY"),
+            library_url: get_env("LIBRARY_URL"),
+
+            files_api_key: get_env("FILES_SERVER_API_KEY"),
+            files_url: get_env("FILES_SERVER_URL"),
+
+            telegram_api_id: get_env("TELEGRAM_API_ID").parse().unwrap(),
+            telegram_api_hash: get_env("TELEGRAM_API_HASH"),
+            telegram_bot_tokens: serde_json::from_str(&get_env("TELEGRAM_BOT_TOKENS")).unwrap(),
+
+            sentry_dsn: get_env("SENTRY_DSN")
+        }
+    }
+}
+
+
+pub static CONFIG: Lazy<Config> = Lazy::new(|| {
+    Config::load()
+});