address_object: Add birthday parsing

crates/store/src/addressbook/address_object.rs

@@ -1,19 +1,39 @@
-use crate::Error;
+use std::{collections::HashMap, io::BufReader};
+
+use crate::{calendar::CalDateTime, Error};
+use ical::parser::{
+    vcard::{self, component::VcardContact},
+    Component,
+};
 use sha2::{Digest, Sha256};
 
 #[derive(Debug, Clone)]
 pub struct AddressObject {
     id: String,
     vcf: String,
+    vcard: VcardContact,
 }
 
 impl AddressObject {
     pub fn from_vcf(object_id: String, vcf: String) -> Result<Self, Error> {
-        Ok(Self { id: object_id, vcf })
+        let mut parser = vcard::VcardParser::new(BufReader::new(vcf.as_bytes()));
+        let vcard = parser.next().ok_or(Error::NotFound)??;
+        if parser.next().is_some() {
+            return Err(Error::InvalidData(
+                "multiple vcards, only one allowed".to_owned(),
+            ));
         }
+        Ok(Self {
+            id: object_id,
+            vcf,
+            vcard,
+        })
+    }
+
     pub fn get_id(&self) -> &str {
         &self.id
     }
+
     pub fn get_etag(&self) -> String {
         let mut hasher = Sha256::new();
         hasher.update(&self.id);
@@ -24,4 +44,9 @@ impl AddressObject {
     pub fn get_vcf(&self) -> &str {
         &self.vcf
     }
+
+    pub fn get_birthday(&self) -> Option<CalDateTime> {
+        let prop = self.vcard.get_property("BDAY")?;
+        CalDateTime::parse_prop(prop, &HashMap::default()).unwrap_or(None)
+    }
 }