package com.armedia.acm.services.participants.model;

/*-
 * #%L
 * ACM Service: Participants
 * %%
 * Copyright (C) 2014 - 2018 ArkCase LLC
 * %%
 * This file is part of the ArkCase software. 
 * 
 * If the software was purchased under a paid ArkCase license, the terms of 
 * the paid license agreement will prevail.  Otherwise, the software is 
 * provided under the following open source license terms:
 * 
 * ArkCase is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *  
 * ArkCase is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public License
 * along with ArkCase. If not, see <http://www.gnu.org/licenses/>.
 * #L%
 */

import com.armedia.acm.core.AcmNotificationReceiver;
import com.armedia.acm.data.AcmEntity;
import com.armedia.acm.data.converter.BooleanToStringConverter;
import com.fasterxml.jackson.annotation.JsonIdentityInfo;
import com.fasterxml.jackson.annotation.JsonIgnore;
import com.fasterxml.jackson.annotation.JsonTypeInfo;
import com.voodoodyne.jackson.jsog.JSOGGenerator;

import javax.persistence.CascadeType;
import javax.persistence.Column;
import javax.persistence.Convert;
import javax.persistence.DiscriminatorColumn;
import javax.persistence.DiscriminatorType;
import javax.persistence.DiscriminatorValue;
import javax.persistence.Entity;
import javax.persistence.FetchType;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.Inheritance;
import javax.persistence.InheritanceType;
import javax.persistence.OneToMany;
import javax.persistence.PrePersist;
import javax.persistence.PreUpdate;
import javax.persistence.Table;
import javax.persistence.TableGenerator;
import javax.persistence.Temporal;
import javax.persistence.TemporalType;
import javax.persistence.Transient;

import java.io.Serializable;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import java.util.Objects;

@Entity
@Table(name = "acm_participant")
@JsonTypeInfo(use = JsonTypeInfo.Id.CLASS, include = JsonTypeInfo.As.EXISTING_PROPERTY, property = "className", defaultImpl = AcmParticipant.class)
@Inheritance(strategy = InheritanceType.SINGLE_TABLE)
@DiscriminatorColumn(name = "cm_class_name", discriminatorType = DiscriminatorType.STRING)
@DiscriminatorValue("com.armedia.acm.services.participants.model.AcmParticipant")
@JsonIdentityInfo(generator = JSOGGenerator.class)
public class AcmParticipant implements Serializable, AcmEntity, AcmNotificationReceiver
{
    private static final long serialVersionUID = 5046781644315879063L;

    @Id
    @TableGenerator(name = "acm_participant_gen", table = "acm_participant_id", pkColumnName = "cm_seq_name", valueColumnName = "cm_seq_num", pkColumnValue = "acm_participant", initialValue = 100, allocationSize = 1)
    @GeneratedValue(strategy = GenerationType.TABLE, generator = "acm_participant_gen")
    @Column(name = "cm_participant_id")
    private Long id;

    @Column(name = "cm_class_name")
    private String className = this.getClass().getName();

    @Column(name = "cm_object_type", insertable = true, updatable = false)
    private String objectType;

    @Column(name = "cm_object_id", insertable = true, updatable = false)
    private Long objectId;

    @Column(name = "cm_participant_type")
    private String participantType;

    @Column(name = "cm_participant_ldap_id")
    private String participantLdapId;

    @Column(name = "cm_participant_created", nullable = false, insertable = true, updatable = false)
    @Temporal(TemporalType.TIMESTAMP)
    private Date created;

    @Column(name = "cm_participant_creator", insertable = true, updatable = false)
    private String creator;

    @Column(name = "cm_participant_modified", nullable = false)
    @Temporal(TemporalType.TIMESTAMP)
    private Date modified;

    @Column(name = "cm_participant_modifier")
    private String modifier;

    @OneToMany(cascade = CascadeType.ALL, mappedBy = "participant", fetch = FetchType.EAGER, orphanRemoval = true)
    private List<AcmParticipantPrivilege> privileges = new ArrayList<>();

    // this field should be @Transient, but EclipseLink removes the field value on merge()
    // this way the field is effectively transient, although the column must exist in the database
    @Column(name = "cm_replace_children_participant", insertable = false, updatable = false)
    @Convert(converter = BooleanToStringConverter.class)
    private boolean replaceChildrenParticipant;

    @Transient
    private boolean isEditableUser = true;

    @Transient
    private boolean isEditableType = true;

    @Transient
    private boolean isDeletable = true;

    public static AcmParticipant createRulesTestParticipant(AcmParticipant participant)
    {
        AcmParticipant copyParticipant = new AcmParticipant();
        copyParticipant.setParticipantLdapId(participant.getParticipantLdapId());
        copyParticipant.setObjectId(participant.getObjectId());
        copyParticipant.setParticipantType(participant.getParticipantType());
        copyParticipant.setObjectType(participant.getObjectType());
        copyParticipant.setCreated(participant.getCreated());
        copyParticipant.setCreator(participant.getCreator());
        copyParticipant.setModified(participant.getModified());
        copyParticipant.setModifier(participant.getModifier());
        copyParticipant.setReplaceChildrenParticipant(participant.isReplaceChildrenParticipant());

        return copyParticipant;
    }

    public boolean isEditableUser()
    {
        return isEditableUser;
    }

    public void setEditableUser(boolean editableUser)
    {
        isEditableUser = editableUser;
    }

    public boolean isEditableType()
    {
        return isEditableType;
    }

    public void setEditableType(boolean editableType)
    {
        isEditableType = editableType;
    }

    public boolean isDeletable()
    {
        return isDeletable;
    }

    public void setDeletable(boolean deletable)
    {
        isDeletable = deletable;
    }

    @PrePersist
    public void beforeInsert()
    {
        updatePrivileges();
    }

    @PreUpdate
    public void beforeUpdate()
    {
        updatePrivileges();
    }

    private void updatePrivileges()
    {
        for (AcmParticipantPrivilege privilege : getPrivileges())
        {
            if (privilege.getParticipant() == null)
            {
                privilege.setParticipant(this);
            }
        }
    }

    public Long getId()
    {
        return id;
    }

    public void setId(Long id)
    {
        this.id = id;
    }

    public String getObjectType()
    {
        return objectType;
    }

    public void setObjectType(String objectType)
    {
        this.objectType = objectType;
    }

    public Long getObjectId()
    {
        return objectId;
    }

    public void setObjectId(Long objectId)
    {
        this.objectId = objectId;
    }

    public String getClassName()
    {
        return className;
    }

    public void setClassName(String className)
    {
        this.className = className;
    }

    public String getParticipantType()
    {
        return participantType;
    }

    public void setParticipantType(String participantType)
    {
        this.participantType = participantType;
    }

    public String getParticipantLdapId()
    {
        return participantLdapId;
    }

    public void setParticipantLdapId(String participantLdapId)
    {
        this.participantLdapId = participantLdapId;
    }

    @Override
    public Date getCreated()
    {
        return created;
    }

    @Override
    public void setCreated(Date created)
    {
        this.created = created;
    }

    @Override
    public String getCreator()
    {
        return creator;
    }

    @Override
    public void setCreator(String creator)
    {
        this.creator = creator;
    }

    @Override
    public Date getModified()
    {
        return modified;
    }

    @Override
    public void setModified(Date modified)
    {
        this.modified = modified;
    }

    @Override
    public String getModifier()
    {
        return modifier;
    }

    @Override
    public void setModifier(String modifier)
    {
        this.modifier = modifier;
    }

    public List<AcmParticipantPrivilege> getPrivileges()
    {
        return privileges;
    }

    public void setPrivileges(List<AcmParticipantPrivilege> privileges)
    {
        this.privileges = privileges;
    }

    @Override
    public String toString()
    {
        return "AcmParticipant{" + "id=" + id + ", objectType='" + objectType + '\'' + ", objectId=" + objectId + ", participantType='"
                + participantType + '\'' + ", participantLdapId='" + participantLdapId + '\'' + ", created=" + created + ", creator='"
                + creator + '\'' + ", modified=" + modified + ", modifier='" + modifier + '\'' + ", privileges=" + privileges + '}';
    }

    @Override
    public boolean equals(Object obj)
    {
        Objects.requireNonNull(obj, "Comparable object must not be null");
        if (!(obj instanceof AcmParticipant))
        {
            return false;
        }
        AcmParticipant other = (AcmParticipant) obj;
        if (this.getId() == null || other.getId() == null)
        {
            return false;
        }
        return getId().equals(other.getId());
    }

    @Override
    public int hashCode()
    {
        if (getId() == null)
        {
            return super.hashCode();
        }
        else
        {
            return getId().hashCode();
        }
    }

    @Override
    @JsonIgnore
    public String getReceiverLdapId()
    {
        return participantLdapId;
    }

    @Override
    @JsonIgnore
    public String getReceiverType()
    {
        return participantType;
    }

    public boolean isReplaceChildrenParticipant()
    {
        return replaceChildrenParticipant;
    }

    public void setReplaceChildrenParticipant(boolean replaceChildrenParticipant)
    {
        this.replaceChildrenParticipant = replaceChildrenParticipant;
    }
}