Add new protocol crate with basic types and operations

1 files changed, 74 insertions, 0 deletions

diff --git a/protocol/src/member/email.rs b/protocol/src/member/email.rs
new file mode 100644
index 0000000..a3b829f
--- /dev/null
+++ b/protocol/src/member/email.rs
@@ -0,0 +1,74 @@
+use serde::{Deserialize, Deserializer, Serialize, Serializer};
+
+use crate::member::error::EMailAddressParseError;
+use std::fmt::{Display, Formatter};
+
+#[derive(Clone, Debug, Eq)]
+pub struct EMailAddress {
+    account: String,
+    domain: String,
+}
+
+impl std::hash::Hash for EMailAddress {
+    fn hash<H: std::hash::Hasher>(&self, state: &mut H) {
+        self.account.hash(state);
+        self.domain.hash(state);
+    }
+}
+
+impl PartialEq for EMailAddress {
+    fn eq(&self, other: &Self) -> bool {
+        self.account == other.account && self.domain == other.domain
+    }
+}
+
+impl Display for EMailAddress {
+    fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
+        write!(f, "{}@{}", self.account, self.domain)
+    }
+}
+
+impl TryFrom<&str> for EMailAddress {
+    type Error = EMailAddressParseError;
+
+    fn try_from(value: &str) -> Result<Self, Self::Error> {
+        let trimmed_value = value.trim();
+        let parts: Vec<&str> = trimmed_value.split('@').collect();
+        if parts.len() != 2 {
+            return Err(EMailAddressParseError::InvalidFormat);
+        }
+        let account = parts[0].trim().to_string();
+        let domain = parts[1].trim().to_string();
+        if account.is_empty() || domain.is_empty() {
+            return Err(EMailAddressParseError::EmptyPart);
+        }
+        Ok(Self { account, domain })
+    }
+}
+
+impl TryFrom<String> for EMailAddress {
+    type Error = EMailAddressParseError;
+
+    fn try_from(value: String) -> Result<Self, Self::Error> {
+        Self::try_from(value.as_str())
+    }
+}
+
+impl Serialize for EMailAddress {
+    fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
+    where
+        S: Serializer,
+    {
+        serializer.serialize_str(&self.to_string())
+    }
+}
+
+impl<'de> Deserialize<'de> for EMailAddress {
+    fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
+    where
+        D: Deserializer<'de>,
+    {
+        let s = String::deserialize(deserializer)?;
+        EMailAddress::try_from(s).map_err(serde::de::Error::custom)
+    }
+}