added scheduling support

added remind command
added support for parameters with spaces (they are contained by ")
fixed support for remainder parameters
added maxlength support for parameters
added ability to embed templates, to have a text as well
moved properties to a more appropriate position
added method do parse a duration

abstracto-application/abstracto-modules/utility/utility-int/src/main/java/dev/sheldan/abstracto/utility/models/Reminder.java

@@ -0,0 +1,54 @@
+package dev.sheldan.abstracto.utility.models;
+
+import dev.sheldan.abstracto.core.models.database.AChannel;
+import dev.sheldan.abstracto.core.models.database.AServer;
+import dev.sheldan.abstracto.core.models.database.AUserInAServer;
+import lombok.*;
+
+import javax.persistence.*;
+import java.time.Instant;
+
+@Entity
+@Table(name="reminder")
+@Builder
+@AllArgsConstructor
+@NoArgsConstructor
+@Getter @Setter
+public class Reminder {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    @Getter
+    private Long id;
+
+    @Getter
+    @ManyToOne
+    @JoinColumn(name = "remindedUser")
+    private AUserInAServer toBeReminded;
+
+    @Getter
+    private Long messageId;
+
+    @Getter
+    @ManyToOne
+    @JoinColumn(name = "channelId")
+    private AChannel channel;
+
+    @Getter
+    @ManyToOne
+    @JoinColumn(name = "serverId")
+    private AServer server;
+
+    @Getter
+    private Instant reminderDate;
+
+    @Getter
+    private Instant targetDate;
+
+    @Getter
+    private String text;
+
+    @Getter
+    private boolean reminded;
+
+}

abstracto-application/abstracto-modules/utility/utility-int/src/main/java/dev/sheldan/abstracto/utility/models/template/ExecutedReminderModel.java

@@ -0,0 +1,21 @@
+package dev.sheldan.abstracto.utility.models.template;
+
+import dev.sheldan.abstracto.core.models.ServerContext;
+import dev.sheldan.abstracto.core.utils.MessageUtils;
+import dev.sheldan.abstracto.utility.models.Reminder;
+import lombok.Getter;
+import lombok.Setter;
+import lombok.experimental.SuperBuilder;
+import net.dv8tion.jda.api.entities.Member;
+
+@Getter
+@Setter
+@SuperBuilder
+public class ExecutedReminderModel extends ServerContext {
+    private Reminder reminder;
+    private Member member;
+
+    public String getMessageUrl() {
+        return MessageUtils.buildMessageUrl(this.reminder.getServer().getId() ,this.reminder.getChannel().getId(), this.reminder.getMessageId());
+    }
+}

abstracto-application/abstracto-modules/utility/utility-int/src/main/java/dev/sheldan/abstracto/utility/models/template/ReminderModel.java

@@ -0,0 +1,17 @@
+package dev.sheldan.abstracto.utility.models.template;
+
+import dev.sheldan.abstracto.core.models.UserInitiatedServerContext;
+import dev.sheldan.abstracto.utility.models.Reminder;
+import lombok.Getter;
+import lombok.Setter;
+import lombok.experimental.SuperBuilder;
+import net.dv8tion.jda.api.entities.Message;
+
+@Getter
+@Setter
+@SuperBuilder
+public class ReminderModel extends UserInitiatedServerContext {
+    private String remindText;
+    private Reminder reminder;
+    private Message message;
+}

abstracto-application/abstracto-modules/utility/utility-int/src/main/java/dev/sheldan/abstracto/utility/service/ReminderService.java

@@ -0,0 +1,11 @@
+package dev.sheldan.abstracto.utility.service;
+
+import dev.sheldan.abstracto.core.models.database.AUserInAServer;
+import dev.sheldan.abstracto.utility.models.template.ReminderModel;
+
+import java.time.Duration;
+
+public interface ReminderService {
+    void createReminderInForUser(AUserInAServer user, String remindText, Duration remindIn, ReminderModel reminderModel);
+    void executeReminder(Long reminderId);
+}

abstracto-application/abstracto-modules/utility/utility-int/src/main/java/dev/sheldan/abstracto/utility/service/management/ReminderManagementService.java

@@ -0,0 +1,11 @@
+package dev.sheldan.abstracto.utility.service.management;
+
+import dev.sheldan.abstracto.core.models.AServerAChannelAUser;
+import dev.sheldan.abstracto.utility.models.Reminder;
+
+import java.time.Instant;
+
+public interface ReminderManagementService {
+    Reminder createReminder(AServerAChannelAUser userToBeReminded, String text, Instant timeToBeRemindedAt, Long messageId);
+    Reminder loadReminder(Long reminderId);
+}