tsk-22: Add function to parse env variable to a vector of strings (#25)

Closes #22

Reviewed-on: #25
Co-authored-by: phoenix <kundeng00@pm.me>
Co-committed-by: phoenix <kundeng00@pm.me>

Cargo.lock

@@ -297,7 +297,7 @@ checksum = "f154ce46856750ed433c8649605bf7ed2de3bc35fd9d2a9f30cddd873c80cb08"
 
 [[package]]
 name = "icarus_envy"
-version = "0.4.0"
+version = "0.4.1"
 dependencies = [
  "async-std",
  "const_format",

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "icarus_envy"
-version = "0.4.0"
+version = "0.4.1"
 edition = "2024"
 rust-version = "1.88"
 

src/environment.rs

@@ -90,13 +90,15 @@ pub async fn get_allowed_origins() -> crate::EnvVar {
     let key = crate::keys::ALLOWED_ORIGINS;
     let value = std::env::var(key).expect(key);
 
-    crate::init_envvar(key, &value)
+    let mut envvar = crate::init_envvar(key, &value);
+    crate::init_delimiter(&mut envvar, ',');
+
+    envvar
 }
 
 /// Get environment not specified in the code
 pub async fn get_env(environment: &str) -> crate::EnvVar {
     dotenvy::dotenv().ok();
-    // let key = crate::keys::
     let my_error = format!("{environment} {}", crate::keys::error::GENERAL_ERROR);
     let value = std::env::var(environment).expect(&my_error);
 

src/lib.rs

@@ -1,15 +1,39 @@
 pub mod environment;
 pub mod keys;
+pub mod utility;
 
 #[derive(Debug, Default, Clone)]
 pub struct EnvVar {
     pub key: String,
     pub value: String,
+    pub has_delimiter: bool,
+    pub delimiter: char,
 }
 
 pub fn init_envvar(key: &str, value: &str) -> EnvVar {
     EnvVar {
         key: key.to_string(),
         value: value.to_string(),
+        has_delimiter: false,
+        ..Default::default()
+    }
+}
+
+pub fn init_delimiter(envvar: &mut EnvVar, delimiter: char) {
+    let mut amount_of_delimiters_found: i32 = 0;
+
+    for v in envvar.value.chars() {
+        if v == delimiter {
+            amount_of_delimiters_found += 1;
+        }
+    }
+
+    let has_delimiter = amount_of_delimiters_found >= 1;
+
+    if has_delimiter {
+        envvar.has_delimiter = has_delimiter;
+        envvar.delimiter = delimiter;
+    } else {
+        envvar.has_delimiter = has_delimiter;
     }
 }

src/utility.rs

@@ -0,0 +1,15 @@
+/// Take the Environment variable and delimitize it. If the value has a delimiter,
+/// extract it into some strings
+pub fn delimitize(var: &crate::EnvVar) -> Result<Vec<String>, std::io::Error> {
+    if var.has_delimiter {
+        Ok(var
+            .value
+            .split(var.delimiter)
+            .map(|c| c.parse::<String>().unwrap())
+            .collect())
+    } else {
+        Err(std::io::Error::other(
+            "Environment variable does not have a delimiter",
+        ))
+    }
+}

tests/test.rs

@@ -114,7 +114,28 @@ mod tests {
             "{} does not match {:?}",
             icarus_envy::keys::ALLOWED_ORIGINS,
             result
-        )
+        );
+
+        assert_eq!(
+            result.has_delimiter, true,
+            "The {} variable has an issue finding the delimiter",
+            result.key
+        );
+
+        match icarus_envy::utility::delimitize(&result) {
+            Ok(allowed_origins) => {
+                assert_eq!(
+                    allowed_origins.len(),
+                    2,
+                    "The amount of allowed origins does not match. {} {}",
+                    allowed_origins.len(),
+                    2
+                )
+            }
+            Err(err) => {
+                assert!(false, "Error: {:?}", err)
+            }
+        }
     }
 
     #[test]