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/*
 *  Copyright 2023 Alexey Andreev.
 *
 *  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 org.teavm.gradle.tasks;

import org.gradle.api.file.ConfigurableFileCollection;
import org.gradle.api.provider.Property;
import org.gradle.api.tasks.Input;
import org.gradle.api.tasks.InputFiles;
import org.gradle.api.tasks.Optional;
import org.teavm.gradle.api.JSModuleType;
import org.teavm.gradle.api.SourceFilePolicy;
import org.teavm.tooling.TeaVMSourceFilePolicy;
import org.teavm.tooling.TeaVMTargetType;
import org.teavm.tooling.builder.BuildStrategy;

public abstract class GenerateJavaScriptTask extends TeaVMTask {
    public GenerateJavaScriptTask() {
        getObfuscated().convention(true);
        getStrict().convention(false);
        getModuleType().convention(JSModuleType.UMD);
        getSourceMap().convention(false);
        getSourceFilePolicy().convention(SourceFilePolicy.DO_NOTHING);
        getEntryPointName().convention("main");
    }

    @Input
    @Optional
    public abstract Property getObfuscated();

    @Input
    @Optional
    public abstract Property getStrict();

    @Input
    @Optional
    public abstract Property getModuleType();

    @Input
    @Optional
    public abstract Property getSourceMap();

    @Input
    @Optional
    public abstract Property getEntryPointName();

    @InputFiles
    public abstract ConfigurableFileCollection getSourceFiles();

    @Input
    @Optional
    public abstract Property getSourceFilePolicy();

    @Input
    @Optional
    public abstract Property getMaxTopLevelNames();

    @Override
    protected void setupBuilder(BuildStrategy builder) {
        builder.setTargetType(TeaVMTargetType.JAVASCRIPT);
        builder.setObfuscated(getObfuscated().get());
        builder.setStrict(getStrict().get());
        if (getMaxTopLevelNames().isPresent()) {
            builder.setMaxTopLevelNames(getMaxTopLevelNames().get());
        }
        switch (getModuleType().get()) {
            case UMD:
                builder.setJsModuleType(org.teavm.backend.javascript.JSModuleType.UMD);
                break;
            case COMMON_JS:
                builder.setJsModuleType(org.teavm.backend.javascript.JSModuleType.COMMON_JS);
                break;
            case NONE:
                builder.setJsModuleType(org.teavm.backend.javascript.JSModuleType.NONE);
                break;
            case ES2015:
                builder.setJsModuleType(org.teavm.backend.javascript.JSModuleType.ES2015);
                break;
        }
        builder.setSourceMapsFileGenerated(getSourceMap().get());
        builder.setEntryPointName(getEntryPointName().get());
        for (var file : getSourceFiles()) {
            if (file.isFile()) {
                if (file.getName().endsWith(".jar") || file.getName().endsWith(".zip")) {
                    builder.addSourcesJar(file.getAbsolutePath());
                }
            } else if (file.isDirectory()) {
                builder.addSourcesDirectory(file.getAbsolutePath());
            }
        }
        switch (getSourceFilePolicy().get()) {
            case DO_NOTHING:
                builder.setSourceFilePolicy(TeaVMSourceFilePolicy.DO_NOTHING);
                break;
            case COPY:
                builder.setSourceFilePolicy(TeaVMSourceFilePolicy.COPY);
                break;
            case LINK_LOCAL_FILES:
                builder.setSourceFilePolicy(TeaVMSourceFilePolicy.LINK_LOCAL_FILES);
                break;
        }
    }
}