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package io.hyperfoil.tools.horreum.entity.alerting;

import java.util.List;

import jakarta.persistence.ConstraintMode;
import jakarta.persistence.ElementCollection;
import jakarta.persistence.Entity;
import jakarta.persistence.FetchType;
import jakarta.persistence.ForeignKey;
import jakarta.persistence.Id;
import jakarta.persistence.JoinColumn;
import jakarta.persistence.OneToOne;
import jakarta.persistence.Table;
import jakarta.persistence.UniqueConstraint;
import jakarta.validation.constraints.NotNull;

import org.hibernate.annotations.Fetch;
import org.hibernate.annotations.FetchMode;

import io.hyperfoil.tools.horreum.entity.CustomSequenceGenerator;
import io.hyperfoil.tools.horreum.entity.data.TestDAO;
import io.quarkus.hibernate.orm.panache.PanacheEntityBase;

/**
 * Records parties interested in new {@link ChangeDAO changes} in given test.
 * It's not possible to subscribe to individual {@link VariableDAO}; all variables are watched.
 */
@Entity(name = "watch")
@Table(uniqueConstraints = @UniqueConstraint(columnNames = "testid"))
public class WatchDAO extends PanacheEntityBase {
    @Id
    @CustomSequenceGenerator(name = "subscriptionidgenerator", allocationSize = 1)
    public Integer id;

    @OneToOne(fetch = FetchType.LAZY, optional = false)
    // We are not using foreign-key constraint as we propagate the test-deletion event (which should remove watches)
    // over eventbus and delete the watch in an independent transaction.
    @JoinColumn(name = "testid", foreignKey = @ForeignKey(ConstraintMode.NO_CONSTRAINT), updatable = false)
    public TestDAO test;

    @NotNull
    @ElementCollection(fetch = FetchType.EAGER)
    @Fetch(FetchMode.SELECT)
    public List users;

    @NotNull
    @ElementCollection(fetch = FetchType.EAGER)
    @Fetch(FetchMode.SELECT)
    public List optout;

    @NotNull
    @ElementCollection(fetch = FetchType.EAGER)
    @Fetch(FetchMode.SELECT)
    public List teams;

    private Integer getTestId() {
        return test.id;
    }

    private void setTestId(int id) {
        this.test = TestDAO.getEntityManager().getReference(TestDAO.class, id);
    }

    @Override
    public String toString() {
        return "Watch{" +
                "id=" + id +
                ", test=" + test.id +
                ", users=" + users +
                ", optout=" + optout +
                ", teams=" + teams +
                '}';
    }
}