/*
 * 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>> {
    }
}

@@ -1119,44 +1119,8 @@
 nal;
-%0Aimport java.util.function.Function;
 %0A%0A/*
@@ -1300,23 +1300,19 @@
 st%3CP
-rovider%3E provid
+arser%3E pars
 ers;
@@ -1344,25 +1344,21 @@
 e, P
-rovid
+ars
 er... p
-rovid
+ars
 er) 
@@ -1401,21 +1401,19 @@
   this.p
-rovid
+ars
 ers = Im
@@ -1432,21 +1432,19 @@
 copyOf(p
-rovid
+ars
 er);%0A   
@@ -1493,21 +1493,19 @@
   for (P
-rovid
+ars
 er suppl
@@ -1511,21 +1511,19 @@
 lier : p
-rovid
+ars
 ers) %7B%0A 
@@ -1572,13 +1572,13 @@
 ier.
-apply
+parse
 (val
@@ -2025,61 +2025,66 @@
 ce P
-rovider extends Function%3CString, Optional%3CTypeRef%3E%3E %7B
+arser %7B%0A        Optional%3CTypeRef%3E parse(String reference);
 %0A   

Simplify functional interface