Better print values and updating README

src/current_weater.rs

@@ -1,3 +1,5 @@
+use serde_json::Value;
+
 pub struct CurrentWeather {
     current_weather: serde_json::Value,
     clean: bool,
@@ -11,12 +13,60 @@ impl CurrentWeather {
         }
     }
 
-    pub fn extract_data(&self, data_name: &str, data_description: &str) -> String {
-        let data = &self.current_weather[data_name];
+    pub fn extract_simple_data(
+        &self,
+        key: &str,
+        description: &str,
+        end_text: Option<&str>,
+    ) -> String {
+        let data = self.extract_raw(key);
+        self.parse_simple_data(data, description, end_text)
+    }
+
+    pub fn extract_raw(&self, key: &str) -> &Value {
+        &self.current_weather[key]
+    }
+
+    fn parse_simple_data(&self, data: &Value, descriptor: &str, end_text: Option<&str>) -> String {
         if self.clean {
             format!("{data}")
         } else {
-            format!("{data_description}: {data}")
+            let end_text = end_text.unwrap_or("");
+            format!("{descriptor}: {data}{end_text}")
+        }
+    }
+
+    pub fn parse_custom_data(&self, data: &Value, custom: &str) -> String {
+        if self.clean {
+            format!("{data}")
+        } else {
+            format!("{custom}")
         }
     }
 }
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn test_extract_data_clean() {
+        let current_weather = serde_json::json!({
+            "temperature": 25,
+        });
+        let weather = CurrentWeather::new(current_weather, true);
+        assert_eq!(weather.extract_simple_data("temperature", "", None), "25");
+    }
+
+    #[test]
+    fn test_extract_data_not_clean() {
+        let current_weather = serde_json::json!({
+            "temperature": 25,
+        });
+        let weather = CurrentWeather::new(current_weather, false);
+        assert_eq!(
+            weather.extract_simple_data("temperature", "Temperature", Some("°C")),
+            "Temperature: 25°C"
+        );
+    }
+}