/*
 * Copyright 2015-present Facebook, Inc.
 *
 * 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.facebook.buck.features.rust;

import static org.junit.Assume.assumeFalse;
import static org.junit.Assume.assumeNoException;

import com.facebook.buck.config.FakeBuckConfig;
import com.facebook.buck.core.exceptions.HumanReadableException;
import com.facebook.buck.core.rules.BuildRuleResolver;
import com.facebook.buck.core.rules.SourcePathRuleFinder;
import com.facebook.buck.core.rules.resolver.impl.TestBuildRuleResolver;
import com.facebook.buck.core.sourcepath.resolver.SourcePathResolver;
import com.facebook.buck.core.sourcepath.resolver.impl.DefaultSourcePathResolver;
import com.facebook.buck.cxx.toolchain.CxxPlatformUtils;
import com.facebook.buck.io.ExecutableFinder;
import com.facebook.buck.util.environment.Platform;

abstract class RustAssumptions {
  public static void assumeRustIsConfigured() {
    assumeFalse(Platform.detect() == Platform.WINDOWS);
    BuildRuleResolver resolver = new TestBuildRuleResolver();
    SourcePathResolver pathResolver =
        DefaultSourcePathResolver.from(new SourcePathRuleFinder(resolver));
    RustPlatform rustPlatform =
        RustPlatformFactory.of(FakeBuckConfig.builder().build(), new ExecutableFinder())
            .getPlatform("rust", CxxPlatformUtils.DEFAULT_PLATFORM);
    Throwable exception = null;
    try {
      rustPlatform.getRustCompiler().resolve(resolver).getCommandPrefix(pathResolver);
    } catch (HumanReadableException e) {
      exception = e;
    }
    assumeNoException(exception);
  }
}
