/*
 * Copyright 2019, TeamDev. All rights reserved.
 *
 * Redistribution and use in source and/or binary forms, with or without
 * modification, must retain the above copyright notice and the following
 * disclaimer.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

package io.spine.code.proto.ref;

import com.google.common.collect.ImmutableList;

import java.util.Optional;
import java.util.function.Function;

/**
 * Attempts to parse the passed value by sequentially invoking provider functions.
 */
final class Parsing {

    private final String value;
    private final ImmutableList<Provider> providers;

    Parsing(String value, Provider... provider) {
        this.value = value;
        this.providers = ImmutableList.copyOf(provider);
    }

    Optional<TypeRef> parse() {
        for (Provider supplier : providers) {
            Optional<TypeRef> found = supplier.apply(value);
            if (found.isPresent()) {
                return found;
            }
        }
        return Optional.empty();
    }

    /**
     * Provides a type reference <em>if</em> the passed string matches the format
     * requirements of the provider, otherwise returns an empty {@code Optional}.
     *
     * @see CompositeTypeRef#parsePart(String)
     * @see TypeRef#parse(String)
     */
    @FunctionalInterface
    interface Provider extends Function<String, Optional<TypeRef>> {
    }
}

/*
 * Copyright 2019, TeamDev. All rights reserved.
 *
 * Redistribution and use in source and/or binary forms, with or without
 * modification, must retain the above copyright notice and the following
 * disclaimer.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

package io.spine.code.proto.ref;

import com.google.common.collect.ImmutableList;

import java.util.Optional;

/**
 * Attempts to parse the passed value by sequentially invoking provider functions.
 */
final class Parsing {

    private final String value;
    private final ImmutableList<Parser> parsers;

    Parsing(String value, Parser... parser) {
        this.value = value;
        this.parsers = ImmutableList.copyOf(parser);
    }

    Optional<TypeRef> parse() {
        for (Parser supplier : parsers) {
            Optional<TypeRef> found = supplier.parse(value);
            if (found.isPresent()) {
                return found;
            }
        }
        return Optional.empty();
    }

    /**
     * Provides a type reference <em>if</em> the passed string matches the format
     * requirements of the provider, otherwise returns an empty {@code Optional}.
     *
     * @see CompositeTypeRef#parsePart(String)
     * @see TypeRef#parse(String)
     */
    @FunctionalInterface
    interface Parser {
        Optional<TypeRef> parse(String reference);
    }
}

Simplify functional interface