feat: Ability to provide destinations for contact form

src/main/kotlin/com/vandeas/dto/ContactForm.kt

@@ -18,6 +18,7 @@ sealed interface ContactForm {
     val phone: String?
     val topic: String?
     val content: String
+    val destinations: List<String>
 }
 
 @SerialName(GOOGLE_RECAPTCHA_SERIAL_NAME)
@@ -29,6 +30,7 @@ data class GoogleRecaptchaContactForm(
     override val content: String,
     override val phone: String? = null,
     override val topic: String? = null,
+    override val destinations: List<String> = emptyList(),
     val recaptchaToken: String,
 ) : ContactForm
 
@@ -41,5 +43,6 @@ data class KerberusContactForm(
     override val content: String,
     override val phone: String? = null,
     override val topic: String? = null,
+    override val destinations: List<String> = emptyList(),
     val solution: Solution
 ) : ContactForm

src/main/kotlin/com/vandeas/logic/impl/MailLogicImpl.kt

@@ -60,11 +60,25 @@ class MailLogicImpl(
 
         val mailer = mailers[config.identifierFromCredentials()] ?: config.toMailer().also { mailers[config.identifierFromCredentials()] = it }
 
-        return mailer.sendEmail(
-            from = config.sender,
-            to = config.destination,
-            subject = subjectTemplate.processToString(mapOf("form" to form)),
-            content = contentTemplate.processToString(mapOf("form" to form))
+        val subject = subjectTemplate.processToString(mapOf("form" to form))
+        val content = contentTemplate.processToString(mapOf("form" to form))
+
+        return mailer.sendEmails(
+            mails = form.destinations.takeIf { it.isNotEmpty() }?.map { destination ->
+                Mail(
+                    from = config.sender,
+                    to = destination,
+                    subject = subject,
+                    content = content
+                )
+            } ?: listOf(
+                Mail(
+                    from = config.sender,
+                    to = config.destination,
+                    subject = subject,
+                    content = content
+                )
+            )
         )
     }