refactor: tools/send_mail.sh with curl (#61)

tools/send_mail.sh

@@ -2,14 +2,28 @@
 set -e
 
 # @describe Send a email.
-# @meta require-tools mutt
-# @option --recipient The recipient of the email.
-# @option --subject The subject of the email.
-# @option --body The body of the email.
+# @env EMAIL_SMTP_ADDR! The SMTP Address, e.g. smtps://smtp.gmail.com:465
+# @env EMAIL_SMTP_USER! The SMTP User, e.g. alice@gmail.com
+# @env EMAIL_SMTP_PASS! The SMTP Password
+# @env EMAIL_SENDER_NAME The sender name
+# @option --recipient! The recipient of the email.
+# @option --subject! The subject of the email.
+# @option --body! The body of the email.
 
 main() {
-    mutt -s "$argc_subject" "$argc_recipient" <<<"$argc_body"
+    sender_name="${EMAIL_SENDER_NAME:-$(echo "$EMAIL_SMTP_USER" | awk -F'@' '{print $1}')}"
+    printf "%s\n" "From: $sender_name <$EMAIL_SMTP_USER>
+To: $argc_recipient 
+Subject: $argc_subject
+
+$argc_body" | \
+    curl -fsS --ssl-reqd \
+        --url "$EMAIL_SMTP_ADDR" \
+        --user "$EMAIL_SMTP_USER:$EMAIL_SMTP_PASS" \
+        --mail-from "$EMAIL_SMTP_USER" \
+        --mail-rcpt "$argc_recipient" \
+        --upload-file -
+    echo "Email sent successfully"
 }
 
 eval "$(argc --argc-eval "$0" "$@")"
-