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/**
 * 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.gh.bmd.jrt.android.v4.routine;

import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentActivity;

import com.gh.bmd.jrt.android.builder.AndroidRoutineBuilder;
import com.gh.bmd.jrt.android.invocation.AndroidInvocation;
import com.gh.bmd.jrt.android.runner.Runners;
import com.gh.bmd.jrt.builder.RoutineConfiguration;
import com.gh.bmd.jrt.builder.RoutineConfiguration.Builder;
import com.gh.bmd.jrt.common.ClassToken;
import com.gh.bmd.jrt.log.Logger;
import com.gh.bmd.jrt.routine.Routine;
import com.gh.bmd.jrt.runner.Runner;
import com.gh.bmd.jrt.time.TimeDuration;

import java.lang.ref.WeakReference;
import java.lang.reflect.Constructor;

import javax.annotation.Nonnull;
import javax.annotation.Nullable;

import static com.gh.bmd.jrt.common.Reflection.findConstructor;

/**
 * Default implementation of an Android routine builder.
 * 

 * Created by davide on 12/9/14.
 *
 * @param   the input data type.
 * @param  the output data type.
 */
class DefaultAndroidRoutineBuilder implements AndroidRoutineBuilder {

    private final Constructor> mConstructor;

    private final WeakReference mContext;

    private CacheStrategy mCacheStrategy;

    private ClashResolution mClashResolution;

    private RoutineConfiguration mConfiguration;

    private int mLoaderId = AndroidRoutineBuilder.AUTO;

    /**
     * Constructor.
     *
     * @param activity   the context activity.
     * @param classToken the invocation class token.
     * @throws java.lang.NullPointerException if the activity or class token are null.
     */
    DefaultAndroidRoutineBuilder(@Nonnull final FragmentActivity activity,
            @Nonnull final ClassToken> classToken) {

        this((Object) activity, classToken);
    }

    /**
     * Constructor.
     *
     * @param fragment   the context fragment.
     * @param classToken the invocation class token.
     * @throws java.lang.NullPointerException if the fragment or class token are null.
     */
    DefaultAndroidRoutineBuilder(@Nonnull final Fragment fragment,
            @Nonnull final ClassToken> classToken) {

        this((Object) fragment, classToken);
    }

    /**
     * Constructor.
     *
     * @param context    the context instance.
     * @param classToken the invocation class token.
     * @throws java.lang.NullPointerException if the context or class token are null.
     */
    @SuppressWarnings("ConstantConditions")
    private DefaultAndroidRoutineBuilder(@Nonnull final Object context,
            @Nonnull final ClassToken> classToken) {

        if (context == null) {

            throw new NullPointerException("the routine context must not be null");
        }

        mContext = new WeakReference(context);
        mConstructor = findConstructor(classToken.getRawClass());
    }

    @Nonnull
    @Override
    public Routine buildRoutine() {

        final RoutineConfiguration configuration = RoutineConfiguration.notNull(mConfiguration);
        warn(configuration);

        final Builder builder = configuration.builderFrom();
        return new AndroidRoutine(builder.withRunner(Runners.mainRunner())
                                                        .withInputSize(Integer.MAX_VALUE)
                                                        .withInputTimeout(TimeDuration.INFINITY)
                                                        .withOutputSize(Integer.MAX_VALUE)
                                                        .withOutputTimeout(TimeDuration.INFINITY)
                                                        .buildConfiguration(), mContext, mLoaderId,
                                                 mClashResolution, mCacheStrategy, mConstructor);
    }

    @Nonnull
    @Override
    public AndroidRoutineBuilder onClash(
            @Nullable final ClashResolution resolution) {

        mClashResolution = resolution;
        return this;
    }

    @Nonnull
    @Override
    public AndroidRoutineBuilder onComplete(
            @Nullable final CacheStrategy cacheStrategy) {

        mCacheStrategy = cacheStrategy;
        return this;
    }

    @Nonnull
    @Override
    public AndroidRoutineBuilder withConfiguration(
            @Nullable final RoutineConfiguration configuration) {

        mConfiguration = configuration;
        return this;
    }

    @Nonnull
    @Override
    public AndroidRoutineBuilder withId(final int id) {

        mLoaderId = id;
        return this;
    }

    /**
     * Logs any warning related to ignored options in the specified configuration.
     *
     * @param configuration the routine configuration.
     */
    private void warn(@Nonnull final RoutineConfiguration configuration) {

        Logger logger = null;

        final Runner runner = configuration.getRunnerOr(null);

        if (runner != null) {

            logger = Logger.newLogger(configuration, this);
            logger.wrn("the specified runner will be ignored: %s", runner);
        }

        final int inputSize = configuration.getInputSizeOr(RoutineConfiguration.DEFAULT);

        if (inputSize != RoutineConfiguration.DEFAULT) {

            if (logger == null) {

                logger = Logger.newLogger(configuration, this);
            }

            logger.wrn("the specified maximum input size will be ignored: %d", inputSize);
        }

        final TimeDuration inputTimeout = configuration.getInputTimeoutOr(null);

        if (inputTimeout != null) {

            if (logger == null) {

                logger = Logger.newLogger(configuration, this);
            }

            logger.wrn("the specified input timeout will be ignored: %s", inputTimeout);
        }

        final int outputSize = configuration.getOutputSizeOr(RoutineConfiguration.DEFAULT);

        if (outputSize != RoutineConfiguration.DEFAULT) {

            if (logger == null) {

                logger = Logger.newLogger(configuration, this);
            }

            logger.wrn("the specified maximum output size will be ignored: %d", outputSize);
        }

        final TimeDuration outputTimeout = configuration.getOutputTimeoutOr(null);

        if (outputTimeout != null) {

            if (logger == null) {

                logger = Logger.newLogger(configuration, this);
            }

            logger.wrn("the specified output timeout will be ignored: %s", outputTimeout);
        }
    }
}
    

    

    

            

    

            



    
    






    
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