package net.frozenorb.apiv3.model;

import lombok.Getter;
import net.frozenorb.apiv3.APIv3;
import org.bson.types.ObjectId;
import org.mongodb.morphia.annotations.Entity;
import org.mongodb.morphia.annotations.Id;

import java.time.Instant;
import java.util.Date;
import java.util.Set;
import java.util.UUID;

@Entity(value = "grants", noClassnameStored = true)
public final class Grant {

    @Id private ObjectId id;
    @Getter private UUID target;
    @Getter private String reason;
    @Getter private Set<String> scopes;
    @Getter private String rank;
    @Getter private Date expiresAt;

    @Getter private UUID addedBy;
    @Getter private Date addedAt;

    @Getter private UUID removedBy;
    @Getter private Date removedAt;
    @Getter private String removalReason;

    public Grant() {} // For Morphia

    public Grant(UUID target, String reason, Set<String> scopes, String rankId, Date expiresAt, UUID addedBy) {
        this.target = target;
        this.reason = reason;
        this.scopes = scopes;
        this.rank = rankId;
        this.expiresAt = expiresAt;
        this.addedBy = addedBy;
        this.addedAt = new Date();
    }

    public void delete(UUID removedBy, String reason) {
        this.removedBy = removedBy;
        this.removedAt = new Date();
        this.removalReason = reason;

        APIv3.getDatastore().save(this);
    }

    public boolean isActive() {
        return !(isExpired() || isRemoved());
    }

    public boolean isExpired() {
        if (expiresAt == null) {
            return false; // Never expires
        } else {
            return expiresAt.after(new Date());
        }
    }

    public boolean isRemoved() {
        return removedBy != null;
    }

}