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package org.graalvm.polyglot;

import java.util.Set;

import org.graalvm.options.OptionDescriptor;
import org.graalvm.options.OptionDescriptors;
import org.graalvm.polyglot.impl.AbstractPolyglotImpl.AbstractLanguageImpl;

A handle for a Graal language installed in an engine. The handle provides access to the language's meta-data, including the language's id, 
name, version and options. 
See Also:
Engine.getLanguages()
Since:
19.0/**
 * A handle for a Graal language installed in an {@link Engine engine}. The handle provides access
 * to the language's meta-data, including the language's {@link #getId() id}, {@link #getName()
 * name}, {@link #getVersion() version} and {@link #getOptions() options}.
 *
 * @see Engine#getLanguages()
 * @since 19.0
 */
public final class Language {

    final AbstractLanguageImpl impl;

    Language(AbstractLanguageImpl impl) {
        this.impl = impl;
    }

    
Gets the primary identification string of this language. The language id is used as the
primary way of identifying languages in the polyglot API. (eg. js)
Returns:
a language ID string.
Since:
19.0/**
     * Gets the primary identification string of this language. The language id is used as the
     * primary way of identifying languages in the polyglot API. (eg. <code>js</code>)
     *
     * @return a language ID string.
     * @since 19.0
     */
    public String getId() {
        return impl.getId();
    }

    
Gets a human-readable name for the language (for example, "JavaScript").
Returns:
the user-friendly name for this language.
Since:
19.0/**
     * Gets a human-readable name for the language (for example, "JavaScript").
     *
     * @return the user-friendly name for this language.
     * @since 19.0
     */
    public String getName() {
        return impl.getName();
    }

    
Gets a human-readable name of the language implementation (for example, "Graal.JS"). Returns
null if no implementation name was specified.
Since:
19.0/**
     * Gets a human-readable name of the language implementation (for example, "Graal.JS"). Returns
     * <code>null</code> if no implementation name was specified.
     *
     * @since 19.0
     */
    public String getImplementationName() {
        return impl.getImplementationName();
    }

    
Gets the version information of the language in an arbitrary language-specific format.
Since:
19.0/**
     * Gets the version information of the language in an arbitrary language-specific format.
     *
     * @since 19.0
     */
    public String getVersion() {
        return impl.getVersion();
    }

    
Returns true if a the language is suitable for interactive evaluation of sources. Interactive languages should be displayed in interactive environments and presented to the user. 
Since:
19.0/**
     * Returns <code>true</code> if a the language is suitable for interactive evaluation of
     * {@link Source sources}. {@link #isInteractive() Interactive} languages should be displayed in
     * interactive environments and presented to the user.
     *
     * @since 19.0
     */
    public boolean isInteractive() {
        return impl.isInteractive();
    }

    
Returns the set of options provided by this language. Option values for languages can either be provided while building an engine or a context. The option descriptor name must be used as the option name. 
Since:
19.0/**
     * Returns the set of options provided by this language. Option values for languages can either
     * be provided while building an {@link Engine.Builder#option(String, String) engine} or a
     * {@link Context.Builder#option(String, String) context}. The option descriptor
     * {@link OptionDescriptor#getName() name} must be used as the option name.
     *
     * @since 19.0
     */
    public OptionDescriptors getOptions() {
        return impl.getOptions();
    }

    
Returns the default MIME type that is in use by a language. The default MIME type specifies
whether a source is loaded as character or binary based source by default. Returns
null if the language does not specify a default MIME type.
See Also:
hasBytes.hasBytes()
Source.getMimeType()
Since:
19.0/**
     * Returns the default MIME type that is in use by a language. The default MIME type specifies
     * whether a source is loaded as character or binary based source by default. Returns
     * <code>null</code> if the language does not specify a default MIME type.
     *
     * @see Source#hasBytes()
     * @see Source#getMimeType()
     * @since 19.0
     */
    public String getDefaultMimeType() {
        return impl.getDefaultMimeType();
    }

    
Returns the MIME types supported by this language.
See Also:
getMimeType.getMimeType()
Since:
19.0/**
     * Returns the MIME types supported by this language.
     *
     * @see Source#getMimeType()
     * @since 19.0
     */
    public Set<String> getMimeTypes() {
        return impl.getMimeTypes();
    }

}