Initial

crates/email/src/sender.rs

@@ -0,0 +1,36 @@
+use std::str::FromStr;
+
+use crate::platform::Platform;
+use crate::smtp::{SmtpClient, SmtpConfig};
+
+#[derive(Debug, thiserror::Error)]
+pub enum EmailError {
+    #[error("SMTP transport error: {0}")]
+    SmtpTransport(#[from] lettre::transport::smtp::Error),
+    #[error("Message build error: {0}")]
+    MessageBuild(String),
+    #[error("Unsupported platform: {0}")]
+    UnsupportedPlatform(String),
+    #[error("Config parse error: {0}")]
+    ConfigParse(#[from] serde_json::Error),
+}
+
+#[async_trait::async_trait]
+pub trait Sender: Send + Sync {
+    async fn send(&self, to: &[String], subject: &str, body: &str) -> Result<(), EmailError>;
+}
+
+pub fn new_sender(
+    platform: &str,
+    config: &str,
+    site_name: &str,
+) -> Result<Box<dyn Sender>, EmailError> {
+    match Platform::from_str(platform).unwrap_or(Platform::Unsupported) {
+        Platform::Smtp => {
+            let mut cfg: SmtpConfig = serde_json::from_str(config)?;
+            cfg.site_name = site_name.to_string();
+            Ok(Box::new(SmtpClient::new(cfg)))
+        }
+        _ => Err(EmailError::UnsupportedPlatform(platform.to_string())),
+    }
+}