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/*
 * Copyright (C) 2011 Thomas Akehurst
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.github.tomakehurst.wiremock.matching;

import com.fasterxml.jackson.annotation.JsonProperty;

import java.util.List;
import java.util.stream.Collectors;
import java.util.stream.Stream;

import static java.util.Arrays.asList;

public class LogicalOr extends StringValuePattern {

    private final List operands;

    public LogicalOr(StringValuePattern... operands) {
        this(asList(operands));
    }

    public LogicalOr(@JsonProperty("or") List operands) {
        super(operands.stream()
                .findFirst()
                .map(ContentPattern::getValue)
                .orElseThrow(() -> new IllegalArgumentException("Logical OR must be constructed with at least two matchers")));
        this.operands = operands;
    }

    @Override
    public String getExpected() {
        return operands.stream()
                .map(contentPattern -> contentPattern.getName() + " " + contentPattern.getExpected())
                .collect(Collectors.joining(" OR "));
    }

    public List getOr() {
        return operands;
    }

    @Override
    public MatchResult match(String value) {
        final List matchResults = operands.stream()
                .map(matcher -> matcher.match(value))
                .collect(Collectors.toList());

        return new MatchResult() {
            @Override
            public boolean isExactMatch() {
                return matchResults.stream().anyMatch(MatchResult::isExactMatch);
            }

            @Override
            public double getDistance() {
                return matchResults.stream()
                        .map(MatchResult::getDistance)
                        .sorted()
                        .findFirst().get();
            }
        };
    }
}