Functionality (#4)

Reviewed-on: #4
Co-authored-by: kdeng00 <kundeng00@pm.me>
Co-committed-by: kdeng00 <kundeng00@pm.me>

.env

@@ -0,0 +1,8 @@
+SECRET_MAIN_KEY=Somesupersecretpassword!!!45345435
+SECRET_KEY=AmIGoodEnoughForYou?
+ROOT_DIRECTORY=/path/to/root
+POSTGRES_MAIN_USER=myuser
+POSTGRES_MAIN_PASSWORD=password
+POSTGRES_MAIN_DB=my_db
+POSTGRES_MAIN_HOST=localhost
+DATABASE_URL=postgres://${POSTGRES_MAIN_USER}:${POSTGRES_MAIN_PASSWORD}@${POSTGRES_MAIN_HOST}:5432/${POSTGRES_MAIN_DB}

.env.sample

@@ -0,0 +1,8 @@
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+SECRET_KEY=AmIGoodEnoughForYou?
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+DATABASE_URL=postgres://${POSTGRES_MAIN_USER}:${POSTGRES_MAIN_PASSWORD}@${POSTGRES_MAIN_HOST}:5432/${POSTGRES_MAIN_DB}

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Cargo.toml

@@ -5,3 +5,7 @@ edition = "2024"
 rust-version = "1.86"
 
 [dependencies]
+dotenvy = { version = "0.15.7" }
+
+[dev-dependencies]
+async-std = { version = "1.13.1" }

src/environment.rs

@@ -0,0 +1,20 @@
+
+pub async fn get_db_url() -> String {
+    dotenvy::dotenv().ok();
+    std::env::var(crate::keys::DBURL).expect(crate::keys::error::ERROR)
+}
+
+pub async fn get_secret_main_key() -> String {
+    dotenvy::dotenv().ok();
+    std::env::var(crate::keys::SECRET_MAIN_KEY).expect(crate::keys::error::SECRET_MAIN_KEY)
+}
+
+pub async fn get_secret_key() -> String {
+    dotenvy::dotenv().ok();
+    std::env::var(crate::keys::SECRET_KEY).expect(crate::keys::error::SECRET_KEY)
+}
+
+pub async fn get_root_directory() -> String {
+    dotenvy::dotenv().ok();
+    std::env::var(crate::keys::ROOT_DIRECTORY).expect(crate::keys::error::ROOT_DIRECTORY)
+}

src/keys.rs

@@ -0,0 +1,21 @@
+// TODO: Change this to snake case
+// Environment key for Database management
+pub const DBURL: &str = "DATABASE_URL";
+
+// Environment key for secret main key
+// Used for the icarus app
+pub const SECRET_MAIN_KEY: &str = "SECRET_MAIN_KEY"; 
+
+// Environment key for secret key
+// Generic use of secret key that could be found in various apps
+pub const SECRET_KEY: &str = "SECRET_KEY";
+
+// Environment key for root directory for the icarus app
+pub const ROOT_DIRECTORY: &str = "ROOT_DIRECTORY";
+
+pub mod error {
+    pub const ERROR: &str = "DATABASE_URL must be set in .env";
+    pub const SECRET_KEY: &str = "SECRET_KEY must be set in environment file";
+    pub const SECRET_MAIN_KEY: &str = "SECRET_MAIN_KEY must not be set in environment file";
+    pub const ROOT_DIRECTORY: &str = "ROOT_DIRECTORY must not be set in environment file";
+}

src/lib.rs

@@ -1,3 +1,6 @@
+pub mod environment;
+pub mod keys;
+
 pub fn add(left: u64, right: u64) -> u64 {
     left + right
 }

tests/test.rs

@@ -0,0 +1,27 @@
+
+#[cfg(test)]
+mod tests {
+    #[test]
+    fn test_dburl() {
+        let result = async_std::task::block_on(icarus_envy::environment::get_db_url());
+        assert_eq!(result, "postgres://myuser:password@localhost:5432/my_db", "DATABASE_URL does not match {:?}", result);
+    }
+
+    #[test]
+    fn test_get_secret_main_key() {
+        let result = async_std::task::block_on(icarus_envy::environment::get_secret_main_key());
+        assert_eq!(result, "Somesupersecretpassword!!!45345435", "SECRET_MAIN_KEY does not match {:?}", result)
+    }
+
+    #[test]
+    fn test_get_secret_key() {
+        let result = async_std::task::block_on(icarus_envy::environment::get_secret_key());
+        assert_eq!(result, "AmIGoodEnoughForYou?", "SECRET_KEY does not match {:?}", result)
+    }
+
+    #[test]
+    fn test_get_root_directory() {
+        let result = async_std::task::block_on(icarus_envy::environment::get_root_directory());
+        assert_eq!(result, "/path/to/root", "ROOT_DIRECTORY does not match {:?}", result)
+    }
+}