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package com.enonic.xp.attachment;

import java.util.Objects;

import com.google.common.base.Preconditions;
import com.google.common.io.ByteSource;
import com.google.common.io.Files;

import com.enonic.xp.annotation.PublicApi;
import com.enonic.xp.util.BinaryReference;

@PublicApi
public final class CreateAttachment
{
    private final String mimeType;

    private final String name;

    private final String label;

    private final ByteSource byteSource;

    private final String textContent;

    private CreateAttachment( final Builder builder )
    {
        this.mimeType = builder.mimeType;
        this.name = builder.name;
        this.label = builder.label;
        this.byteSource = builder.byteSource;
        this.textContent = builder.text;
    }

    public String getName()
    {
        return name;
    }

    public String getNameWithoutExtension()
    {
        return Files.getNameWithoutExtension( name );
    }

    public String getExtension()
    {
        return Files.getFileExtension( name );
    }

    public String getLabel()
    {
        return label;
    }

    public String getMimeType()
    {
        return mimeType;
    }

    public ByteSource getByteSource()
    {
        return byteSource;
    }

    public BinaryReference getBinaryReference()
    {
        return BinaryReference.from( name );
    }

    public String getTextContent()
    {
        return textContent;
    }

    public static Builder create()
    {
        return new Builder();
    }

    public static Builder create( final CreateAttachment source )
    {
        return new Builder( source );
    }

    @Override
    public boolean equals( final Object o )
    {
        if ( this == o )
        {
            return true;
        }
        if ( o == null || getClass() != o.getClass() )
        {
            return false;
        }
        final CreateAttachment that = (CreateAttachment) o;
        return Objects.equals( mimeType, that.mimeType ) && Objects.equals( name, that.name ) && Objects.equals( label, that.label ) &&
            Objects.equals( byteSource, that.byteSource ) && Objects.equals( textContent, that.textContent );
    }

    @Override
    public int hashCode()
    {
        return Objects.hash( mimeType, name, label, byteSource, textContent );
    }

    public static class Builder
    {
        private ByteSource byteSource;

        private String mimeType;

        private String name;

        private String label;

        private String text;

        public Builder()
        {
        }

        public Builder( final CreateAttachment source )
        {
            this.name = source.name;
            this.mimeType = source.mimeType;
            this.label = source.label;
            this.byteSource = source.byteSource;
            this.text = source.textContent;
        }

        public Builder mimeType( final String value )
        {
            mimeType = value;
            return this;
        }

        public Builder name( final String value )
        {
            name = value;
            return this;
        }

        public Builder label( final String value )
        {
            label = value;
            return this;
        }

        public Builder byteSource( final ByteSource value )
        {
            byteSource = value;
            return this;
        }

        public Builder text( final String value )
        {
            this.text = value;
            return this;
        }

        private void validate()
        {
            Preconditions.checkNotNull( name );
            Preconditions.checkNotNull( byteSource );
        }

        public CreateAttachment build()
        {
            this.validate();
            return new CreateAttachment( this );
        }
    }
}