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package org.apache.juneau.jsonschema.annotation;

import static java.lang.annotation.ElementType.*;
import static java.lang.annotation.RetentionPolicy.*;

import java.lang.annotation.*;

import org.apache.juneau.*;
import org.apache.juneau.annotation.*;
import org.apache.juneau.jsonschema.*;

/**
 * Annotation for specifying config properties defined in {@link JsonSchemaGenerator}.
 *
 * <p>
 * Used primarily for specifying bean configuration properties on REST classes and methods.
 */
@Documented
@Target({TYPE,METHOD})
@Retention(RUNTIME)
@Inherited
@PropertyStoreApply(JsonSchemaConfigApply.class)
public @interface JsonSchemaConfig {

	/**
	 * Optional rank for this config.
	 *
	 * <p>
	 * Can be used to override default ordering and application of config annotations.
	 */
	int rank() default 0;

	//-------------------------------------------------------------------------------------------------------------------
	// JsonSchemaGenerator
	//-------------------------------------------------------------------------------------------------------------------

	/**
	 * Configuration property:  Add descriptions to types.
	 *
	 * <p>
	 * Identifies which categories of types that descriptions should be automatically added to generated schemas.
	 *
	 * <p>
	 * The description is the result of calling {@link ClassMeta#getFullName()}.
	 *
	 * <ul class='notes'>
	 * 	<li>
	 * 		The format is a comma-delimited list of any of the following values:
	 * 		<ul class='doctree'>
	 * 			<li><js>"BEAN"</js>
	 * 			<li><js>"COLLECTION"</js>
	 * 			<li><js>"ARRAY"</js>
	 * 			<li><js>"MAP"</js>
	 * 			<li><js>"STRING"</js>
	 * 			<li><js>"NUMBER"</js>
	 * 			<li><js>"BOOLEAN"</js>
	 * 			<li><js>"ANY"</js>
	 * 			<li><js>"OTHER"</js>
	 * 		</ul>
	 * 	<li>
	 * 		Supports {@doc DefaultSvlVariables} (e.g. <js>"$C{myConfigVar}"</js>).
	 * </ul>
	 *
	 * <ul class='seealso'>
	 * 	<li class='jf'>{@link JsonSchemaGenerator#JSONSCHEMA_addDescriptionsTo}
	 * </ul>
	 */
	String addDescriptionsTo() default "";

	/**
	 * Configuration property:  Add examples.
	 *
	 * <p>
	 * Identifies which categories of types that examples should be automatically added to generated schemas.
	 * <p>
	 * The examples come from calling {@link ClassMeta#getExample(BeanSession)} which in turn gets examples
	 * from the following:
	 * <ul class='javatree'>
	 * 	<li class='ja'>{@link Example}
	 * 	<li class='jf'>{@link BeanContext#BEAN_examples}
	 * </ul>
	 *
	 * <ul class='notes'>
	 * 	<li>
	 * 		The format is a comma-delimited list of any of the following values:
	 * 		<ul class='doctree'>
	 * 			<li><js>"BEAN"</js>
	 * 			<li><js>"COLLECTION"</js>
	 * 			<li><js>"ARRAY"</js>
	 * 			<li><js>"MAP"</js>
	 * 			<li><js>"STRING"</js>
	 * 			<li><js>"NUMBER"</js>
	 * 			<li><js>"BOOLEAN"</js>
	 * 			<li><js>"ANY"</js>
	 * 			<li><js>"OTHER"</js>
	 * 		</ul>
	 * 	<li>
	 * 		Supports {@doc DefaultSvlVariables} (e.g. <js>"$C{myConfigVar}"</js>).
	 * </ul>
	 *
	 * <ul class='seealso'>
	 * 	<li class='jf'>{@link JsonSchemaGenerator#JSONSCHEMA_addDescriptionsTo}
	 * </ul>
	 */
	String addExamplesTo() default "";

	/**
	 * Configuration property:  Allow nested descriptions.
	 *
	 * <p>
	 * Identifies whether nested descriptions are allowed in schema definitions.
	 *
	 * <ul class='notes'>
	 * 	<li>
	 * 		Possible values:
	 * 		<ul>
	 * 			<li><js>"true"</js>
	 * 			<li><js>"false"</js> (default)
	 * 		</ul>
	 * 	<li>
	 * 		Supports {@doc DefaultSvlVariables} (e.g. <js>"$C{myConfigVar}"</js>).
	 * </ul>
	 *
	 * <ul class='seealso'>
	 * 	<li class='jf'>{@link JsonSchemaGenerator#JSONSCHEMA_allowNestedDescriptions}
	 * </ul>
	 */
	String allowNestedDescriptions() default "";

	/**
	 * Configuration property:  Allow nested examples.
	 *
	 * <p>
	 * Identifies whether nested examples are allowed in schema definitions.
	 *
	 * <ul class='notes'>
	 * 	<li>
	 * 		Possible values:
	 * 		<ul>
	 * 			<li><js>"true"</js>
	 * 			<li><js>"false"</js> (default)
	 * 		</ul>
	 * 	<li>
	 * 		Supports {@doc DefaultSvlVariables} (e.g. <js>"$C{myConfigVar}"</js>).
	 * </ul>
	 *
	 * <ul class='seealso'>
	 * 	<li class='jf'>{@link JsonSchemaGenerator#JSONSCHEMA_allowNestedExamples}
	 * </ul>
	 */
	String allowNestedExamples() default "";

	/**
	 * Dynamically applies {@link Schema @Schema} annotations to specified classes/methods/fields.
	 *
	 * <p>
	 * Provides an alternate approach for applying annotations using {@link Schema#on() @Schema.on} to specify the names
	 * to apply the annotation to.
	 *
	 * <ul class='seealso'>
	 * 	<li class='link'>{@doc juneau-marshall.DynamicallyAppliedAnnotations}
	 * </ul>
	 */
	Schema[] applySchema() default {};

	/**
	 * Configuration property:  Bean schema definition mapper.
	 *
	 * <p>
	 * Interface to use for converting Bean classes to definition IDs and URIs.
	 *
	 * <p>
	 * Used primarily for defining common definition sections for beans in Swagger JSON.
	 *
	 * <ul class='notes'>
	 * 	<li>
	 * 		This setting is ignored if {@link JsonSchemaGenerator#JSONSCHEMA_useBeanDefs} is not enabled.
	 * </ul>
	 *
	 * <ul class='seealso'>
	 * 	<li class='jf'>{@link JsonSchemaGenerator#JSONSCHEMA_beanDefMapper}
	 * </ul>
	 */
	Class<? extends BeanDefMapper> beanDefMapper() default BeanDefMapper.Null.class;

	/**
	 * Configuration property:  Default schemas.
	 *
	 * <p>
	 * Allows you to override or provide custom schema information for particular class types.
	 *
	 * <ul class='notes'>
	 * 	<li>
	 * 		Keys are the class.
	 * 		<br>Values are Simple-JSON objects.
	 * 	<li>
	 * 		Supports {@doc DefaultSvlVariables} (e.g. <js>"$C{myConfigVar}"</js>).
	 * </ul>
	 *
	 * <ul class='seealso'>
	 * 	<li class='jf'>{@link JsonSchemaGenerator#JSONSCHEMA_defaultSchemas}
	 * </ul>
	 */
	CS[] defaultSchemas() default {};

	/**
	 * Configuration property:  Ignore types from schema definitions.
	 *
	 * <p>
	 * Defines class name patterns that should be ignored when generating schema definitions in the generated
	 * Swagger documentation.
	 *
	 * <ul class='notes'>
	 * 	<li>
	 * 		Format: Comma-delimited list of patterns
	 * 	<li>
	 * 		Supports {@doc DefaultSvlVariables} (e.g. <js>"$C{myConfigVar}"</js>).
	 * </ul>
	 *
	 * <ul class='seealso'>
	 * 	<li class='jf'>{@link JsonSchemaGenerator#JSONSCHEMA_ignoreTypes}
	 * </ul>
	 */
	String ignoreTypes() default "";

	/**
	 * Configuration property:  Use bean definitions.
	 *
	 * <p>
	 * When enabled, schemas on beans will be serialized as the following:
	 * <p class='bcode w800'>
	 * 	{
	 * 		type: <js>'object'</js>,
	 * 		<js>'$ref'</js>: <js>'#/definitions/TypeId'</js>
	 * 	}
	 * </p>
	 *
	 * <p>
	 * The definitions can then be retrieved from the session using {@link JsonSchemaGeneratorSession#getBeanDefs()}.
	 *
	 * <p>
	 * Definitions can also be added programmatically using {@link JsonSchemaGeneratorSession#addBeanDef(String, ObjectMap)}.
	 *
	 * <ul class='notes'>
	 * 	<li>
	 * 		Possible values:
	 * 		<ul>
	 * 			<li><js>"true"</js>
	 * 			<li><js>"false"</js> (default)
	 * 		</ul>
	 * 	<li>
	 * 		Supports {@doc DefaultSvlVariables} (e.g. <js>"$C{myConfigVar}"</js>).
	 * </ul>
	 *
	 * <ul class='seealso'>
	 * 	<li class='jf'>{@link JsonSchemaGenerator#JSONSCHEMA_useBeanDefs}
	 * </ul>
	 */
	String useBeanDefs() default "";
}