Move ical-related stuff to dedicated rustical_ical crate

crates/ical/src/property_ext.rs

@@ -0,0 +1,46 @@
+use ical::{generator::IcalEvent, property::Property};
+
+pub trait IcalProperty {
+    fn get_param(&self, name: &str) -> Option<Vec<&str>>;
+    fn get_value_type(&self) -> Option<&str>;
+    fn get_tzid(&self) -> Option<&str>;
+}
+
+impl IcalProperty for ical::property::Property {
+    fn get_param(&self, name: &str) -> Option<Vec<&str>> {
+        self.params
+            .as_ref()?
+            .iter()
+            .find(|(key, _)| name == key)
+            .map(|(_, value)| value.iter().map(String::as_str).collect())
+    }
+
+    fn get_value_type(&self) -> Option<&str> {
+        self.get_param("VALUE")
+            .and_then(|params| params.into_iter().next())
+    }
+
+    fn get_tzid(&self) -> Option<&str> {
+        self.get_param("TZID")
+            .and_then(|params| params.into_iter().next())
+    }
+}
+
+pub trait ComponentMut {
+    fn remove_property(&mut self, name: &str);
+    fn set_property(&mut self, prop: Property);
+    fn push_property(&mut self, prop: Property);
+}
+
+impl ComponentMut for IcalEvent {
+    fn remove_property(&mut self, name: &str) {
+        self.properties.retain(|prop| prop.name != name);
+    }
+    fn set_property(&mut self, prop: Property) {
+        self.remove_property(&prop.name);
+        self.push_property(prop);
+    }
+    fn push_property(&mut self, prop: Property) {
+        self.properties.push(prop);
+    }
+}