70 lines
2.8 KiB
Kotlin
70 lines
2.8 KiB
Kotlin
package fr.dcproject.messages
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import com.sendgrid.helpers.mail.Mail
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import com.sendgrid.helpers.mail.objects.Content
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import com.sendgrid.helpers.mail.objects.Email
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import fr.dcproject.component.article.ArticleRepository
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import fr.dcproject.component.article.ArticleWithTitleI
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import fr.dcproject.component.citizen.CitizenBasicI
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import fr.dcproject.component.citizen.CitizenRef
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import fr.dcproject.component.citizen.CitizenRepository
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import fr.dcproject.entity.FollowSimple
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import fr.dcproject.entity.TargetRef
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import fr.postgresjson.entity.UuidEntityI
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import java.util.*
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class NotificationEmailSender(
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private val mailer: Mailer,
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private val domain: String,
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private val citizenRepo: CitizenRepository,
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private val articleRepo: ArticleRepository
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) {
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fun sendEmail(follow: FollowSimple<out TargetRef, CitizenRef>) {
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val citizen = citizenRepo.findById(follow.createdBy.id) ?: noCitizen(follow.createdBy.id)
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val target = when (follow.target.reference) {
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"article" ->
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articleRepo.findById(follow.target.id) ?: noTarget(follow.target.id)
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else -> noTarget(follow.target.id)
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}
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val subject = when (follow.target.reference) {
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"article" -> """New version for article "${target.title}""""
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else -> "Notification"
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}
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mailer.sendEmail {
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Mail(
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Email("notification@$domain"),
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subject,
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Email(citizen.email),
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Content("text/plain", generateContent(citizen, target))
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).apply {
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addContent(Content("text/html", generateHtmlContent(citizen, target)))
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}
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}
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}
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private fun generateHtmlContent(citizen: CitizenBasicI, target: UuidEntityI): String? {
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return when (target) {
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is ArticleWithTitleI -> """
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Hello ${citizen.name.getFullName()},<br/>
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The article "${target.title}" was updated, check it <a href="http://$domain/articles/${target.id}">here</a>
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""".trimIndent()
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else -> noTarget(target.id)
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}
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}
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private fun generateContent(citizen: CitizenBasicI, target: UuidEntityI): String {
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return when (target) {
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is ArticleWithTitleI -> """
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Hello ${citizen.name.getFullName()},
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The article "${target.title}" was updated, check it here: http://$domain/articles/${target.id}
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""".trimIndent()
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else -> noTarget(target.id)
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}
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}
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class NoCitizen(message: String) : Exception(message)
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class NoTarget(message: String) : Exception(message)
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private fun noCitizen(id: UUID): Nothing = throw NoCitizen("No Citizen with this id : $id")
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private fun noTarget(id: UUID): Nothing = throw NoTarget("No Target with this id : $id")
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} |