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/*
 * The MIT License (MIT)
 *
 * Copyright (c) 2016-2023 Objectionary.com
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included
 * in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */
package org.eolang.opeo.ast;

import java.util.Arrays;
import java.util.List;
import org.objectweb.asm.Type;

/**
 * Constructor descriptor.
 * @since 0.2
 * @todo #229:90min Generalize ConstructorDescriptor to be used in all cases.
 *  Currently we have a workarond for classes in `org.eolang` package.
 *  See {@link #toString()} method.
 *  As you can see, we have a check for `org/eolang` in the descriptor.
 *  We should remove this crutch and make it work for all cases.
 */
public final class ConstructorDescriptor {

    /**
     * Original descriptor.
     */
    private final String descriptor;

    /**
     * Constructor arguments.
     */
    private final List args;

    /**
     * Constructor.
     * @param args Constructor arguments.
     */
    public ConstructorDescriptor(final List args) {
        this("", args);
    }

    /**
     * Constructor.
     * @param descriptor Descriptor.
     * @param arguments Constructor arguments.
     */
    public ConstructorDescriptor(final String descriptor, final List arguments) {
        this.descriptor = descriptor;
        this.args = arguments;
    }

    @Override
    public String toString() {
        final String result;
        if (this.descriptor.contains("org/eolang")
            || this.descriptor.contains("org.eolang")
            || this.descriptor.isEmpty()) {
            result = Type.getMethodDescriptor(
                Type.VOID_TYPE,
                this.args.stream()
                    .peek(this::verify)
                    .map(Typed.class::cast)
                    .map(Typed::type)
                    .toArray(Type[]::new)
            );
        } else {
            result = this.descriptor;
        }
        return result;
    }

    /**
     * Verify that the node is typed.
     * @param node Node to verify.
     */
    private void verify(final AstNode node) {
        if (!(node instanceof Typed)) {
            throw new IllegalArgumentException(
                String.format(
                    "Node %s is not typed, all constructor arguments must be typed: %s. Most probably, you forgot to add a type to the AstNode which you are tying to pass to a constructor.",
                    node,
                    Arrays.toString(this.args.toArray())
                )
            );
        }
    }
}