42 lines
1.7 KiB
Kotlin
42 lines
1.7 KiB
Kotlin
package com.condado.newsletter.service
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import jakarta.mail.internet.InternetAddress
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import jakarta.mail.internet.MimeMessage
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import org.slf4j.LoggerFactory
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import org.springframework.mail.javamail.JavaMailSender
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import org.springframework.mail.javamail.MimeMessageHelper
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import org.springframework.stereotype.Service
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/**
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* Sends AI-generated emails via SMTP using Spring's [JavaMailSender].
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* Each email is sent as multipart (text/plain + text/html).
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*/
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@Service
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class EmailSenderService(private val mailSender: JavaMailSender) {
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private val log = LoggerFactory.getLogger(javaClass)
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/**
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* Sends an email from a virtual entity to all configured recipients.
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*
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* @param from Sender email address (the virtual entity's email).
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* @param to List of recipient email addresses.
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* @param subject Email subject line.
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* @param body Email body (may be plain text or simple HTML).
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*/
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fun send(from: String, to: List<String>, subject: String, body: String) {
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log.info("Sending email from='$from' to=$to subject='$subject'")
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val message: MimeMessage = mailSender.createMimeMessage()
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val helper = MimeMessageHelper(message, true, "UTF-8")
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helper.setFrom(InternetAddress(from))
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helper.setTo(to.toTypedArray())
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helper.setSubject(subject)
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// Send as both plain text and HTML for maximum compatibility
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val plainText = body.replace(Regex("<[^>]+>"), "").trim()
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val htmlBody = if (body.contains(Regex("<[a-zA-Z]"))) body else "<pre>$body</pre>"
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helper.setText(plainText, htmlBody)
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mailSender.send(message)
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log.info("Email sent successfully from='$from' subject='$subject'")
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}
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}
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