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/*
 * Copyright 2022 https://github.com/openapi-processor/openapi-parser
 * PDX-License-Identifier: Apache-2.0
 */

package io.openapiprocessor.jsonschema.schema;

import org.checkerframework.checker.nullness.qual.Nullable;

import java.util.Collections;
import java.util.HashMap;
import java.util.Map;

public class SchemaKeywords {
    public static final SchemaKeywords draft202012 = new SchemaKeywords (initDraft202012 ());
    public static final SchemaKeywords draft201909 = new SchemaKeywords (initDraft201909 ());
    public static final SchemaKeywords draft7 = new SchemaKeywords (Vocabularies7.getKeywords ());
    public static final SchemaKeywords draft6 = new SchemaKeywords (Vocabularies6.getKeywords ());
    public static final SchemaKeywords draft4 = new SchemaKeywords (Vocabularies4.getKeywords ());

    private final Map keywords;

    public SchemaKeywords (Map keywords) {
        this.keywords = keywords;
    }

    public boolean isKeyword (String candidate) {
        return keywords.containsKey (candidate);
    }

    public @Nullable Keyword getKeyword (String keyword) {
        return keywords.get (keyword);
    }

    public boolean isNavigable (String keyword) {
        Keyword match = keywords.get (keyword);
        if (match == null)
            return false;

        return match.isNavigable ();
    }

    private static Map initDraft202012 () {
        Map keywords = new HashMap<> ();

        keywords.putAll (Vocabularies202012.getKeywordsApplicator ());
        keywords.putAll (Vocabularies202012.getKeywordsContent ());
        keywords.putAll (Vocabularies202012.getKeywordsCore ());
        keywords.putAll (Vocabularies202012.getKeywordsFormatAnnotation ());
        keywords.putAll (Vocabularies202012.getKeywordsFormatAssertion ());
        keywords.putAll (Vocabularies202012.getKeywordsHyperSchema ());
        keywords.putAll (Vocabularies202012.getKeywordsMetaData ());
        keywords.putAll (Vocabularies202012.getKeywordsUnevaluated ());
        keywords.putAll (Vocabularies202012.getKeywordsValidation ());

        return Collections.unmodifiableMap (keywords);
    }

    private static Map initDraft201909 () {
        Map keywords = new HashMap<> ();

        keywords.putAll (Vocabularies201909.getKeywordsApplicator ());
        keywords.putAll (Vocabularies201909.getKeywordsContent ());
        keywords.putAll (Vocabularies201909.getKeywordsCore ());
        keywords.putAll (Vocabularies201909.getKeywordsFormat ());
        keywords.putAll (Vocabularies201909.getKeywordsMetaData ());
        keywords.putAll (Vocabularies201909.getKeywordsValidation ());

        return Collections.unmodifiableMap (keywords);
    }
}