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 * The Universal Permissive License (UPL), Version 1.0
 *
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 * person obtaining a copy of this software, associated documentation and/or
 * data (collectively the "Software"), free of charge and under any and all
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 * unmodified Software as contributed to or provided by such licensor, or (ii)
 * the Larger Works (as defined below), to deal in both
 *
 * (a) the Software, and
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 * (b) any piece of software and/or hardware listed in the lrgrwrks.txt file if
 * one is included with the Software each a "Larger Work" to which the Software
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 * Software and the Larger Work(s), and to sublicense the foregoing rights on
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 * The above copyright notice and either this complete permission notice or at a
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package com.oracle.truffle.js.builtins.intl;

import com.oracle.truffle.api.CompilerDirectives;
import com.oracle.truffle.api.dsl.Cached;
import com.oracle.truffle.api.dsl.Specialization;
import com.oracle.truffle.api.profiles.InlinedBranchProfile;
import com.oracle.truffle.api.strings.TruffleString;
import com.oracle.truffle.js.builtins.JSBuiltinsContainer;
import com.oracle.truffle.js.builtins.intl.IntlBuiltinsFactory.GetCanonicalLocalesNodeGen;
import com.oracle.truffle.js.builtins.intl.IntlBuiltinsFactory.SupportedValuesOfNodeGen;
import com.oracle.truffle.js.nodes.cast.JSToStringNode;
import com.oracle.truffle.js.nodes.function.JSBuiltin;
import com.oracle.truffle.js.nodes.function.JSBuiltinNode;
import com.oracle.truffle.js.nodes.intl.JSToCanonicalizedLocaleListNode;
import com.oracle.truffle.js.runtime.Errors;
import com.oracle.truffle.js.runtime.JSConfig;
import com.oracle.truffle.js.runtime.JSContext;
import com.oracle.truffle.js.runtime.Strings;
import com.oracle.truffle.js.runtime.builtins.BuiltinEnum;
import com.oracle.truffle.js.runtime.builtins.JSArray;
import com.oracle.truffle.js.runtime.builtins.intl.JSIntl;
import com.oracle.truffle.js.runtime.util.IntlUtil;

/**
 * Contains builtins for {@linkplain Intl} function (constructor).
 */
public final class IntlBuiltins extends JSBuiltinsContainer.SwitchEnum {

    public static final JSBuiltinsContainer BUILTINS = new IntlBuiltins();

    protected IntlBuiltins() {
        super(JSIntl.CLASS_NAME, Intl.class);
    }

    public enum Intl implements BuiltinEnum {
        getCanonicalLocales(1),
        supportedValuesOf(1);

        private final int length;

        Intl(int length) {
            this.length = length;
        }

        @Override
        public int getLength() {
            return length;
        }

        @Override
        public int getECMAScriptVersion() {
            return switch (this) {
                case getCanonicalLocales -> JSConfig.ECMAScript2016;
                case supportedValuesOf -> JSConfig.ECMAScript2023;
            };
        }
    }

    @Override
    protected Object createNode(JSContext context, JSBuiltin builtin, boolean construct, boolean newTarget, Intl builtinEnum) {
        switch (builtinEnum) {
            case getCanonicalLocales:
                return GetCanonicalLocalesNodeGen.create(context, builtin, args().fixedArgs(1).createArgumentNodes(context));
            case supportedValuesOf:
                return SupportedValuesOfNodeGen.create(context, builtin, args().fixedArgs(1).createArgumentNodes(context));
        }
        return null;
    }

    public abstract static class GetCanonicalLocalesNode extends JSBuiltinNode {

        @Child JSToCanonicalizedLocaleListNode canonicalizeLocaleListNode;

        public GetCanonicalLocalesNode(JSContext context, JSBuiltin builtin) {
            super(context, builtin);
        }

        @Specialization
        @CompilerDirectives.TruffleBoundary
        protected Object getCanonicalLocales(Object locales) {
            if (canonicalizeLocaleListNode == null) {
                CompilerDirectives.transferToInterpreterAndInvalidate();
                canonicalizeLocaleListNode = insert(JSToCanonicalizedLocaleListNode.create(getContext()));
            }
            String[] languageTags = canonicalizeLocaleListNode.executeLanguageTags(locales);
            return JSArray.createConstant(getContext(), getRealm(), Strings.convertJavaStringArray(languageTags));
        }
    }

    public abstract static class SupportedValuesOfNode extends JSBuiltinNode {

        public SupportedValuesOfNode(JSContext context, JSBuiltin builtin) {
            super(context, builtin);
        }

        @Specialization
        protected Object supportedValuesOf(Object keyArg,
                        @Cached JSToStringNode toStringNode,
                        @Cached InlinedBranchProfile errorBranch) {
            TruffleString key = toStringNode.executeString(keyArg);
            String[] list;
            if (Strings.equals(IntlUtil.KEY_CALENDAR, key)) {
                list = IntlUtil.availableCalendars();
            } else if (Strings.equals(IntlUtil.KEY_COLLATION, key)) {
                list = IntlUtil.availableCollations();
            } else if (Strings.equals(IntlUtil.KEY_CURRENCY, key)) {
                list = IntlUtil.availableCurrencies();
            } else if (Strings.equals(IntlUtil.KEY_NUMBERING_SYSTEM, key)) {
                list = IntlUtil.availableNumberingSystems(getContext());
            } else if (Strings.equals(IntlUtil.KEY_TIME_ZONE, key)) {
                list = IntlUtil.availableTimeZones();
            } else if (Strings.equals(IntlUtil.KEY_UNIT, key)) {
                list = IntlUtil.availableUnits();
            } else {
                errorBranch.enter(this);
                throw Errors.createRangeErrorFormat("Invalid key : %s", this, key);
            }
            return JSArray.createConstant(getContext(), getRealm(), Strings.convertJavaStringArray(list));
        }
    }
}