/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.apache.sling.testing.mock.sling.junit;

import java.util.Map;

import org.apache.sling.testing.mock.osgi.context.ContextCallback;
import org.apache.sling.testing.mock.osgi.context.ContextPlugin;
import org.apache.sling.testing.mock.osgi.context.ContextPlugins;
import org.apache.sling.testing.mock.osgi.context.OsgiContextImpl;
import org.apache.sling.testing.mock.sling.ResourceResolverType;
import org.jetbrains.annotations.NotNull;
import org.osgi.annotation.versioning.ProviderType;

/**
 * Builder class for creating {@link SlingContext} instances with different sets of parameters.
 */
@ProviderType
public final class SlingContextBuilder {

    private final @NotNull ContextPlugins plugins = new ContextPlugins();
    private ResourceResolverType resourceResolverType;
    private Map<String, Object> resourceResolverFactoryActivatorProps;
    private boolean registerSlingModelsFromClassPath = true;

    /**
     * Create builder with default resource resolver type.
     */
    public SlingContextBuilder() {}

    /**
     * Create builder with given resource resolver type.
     * @param resourceResolverType Resource resolver type.
     */
    public SlingContextBuilder(@NotNull ResourceResolverType resourceResolverType) {
        this.resourceResolverType(resourceResolverType);
    }

    /**
     * @param resourceResolverType Resource resolver type.
     * @return this
     */
    public @NotNull SlingContextBuilder resourceResolverType(@NotNull ResourceResolverType resourceResolverType) {
        this.resourceResolverType = resourceResolverType;
        return this;
    }

    /**
     * @param <T> context type
     * @param plugin Context plugin which listens to context lifecycle events.
     * @return this
     */
    @SafeVarargs
    public final @NotNull SlingContextBuilder plugin(@NotNull ContextPlugin<? extends OsgiContextImpl> @NotNull ... plugin) {
        plugins.addPlugin(plugin);
        return this;
    }

    /**
     * @param <T> context type
     * @param beforeSetUpCallback Allows the application to register an own callback function that is called before the built-in setup rules are executed.
     * @return this
     */
    @SafeVarargs
    public final @NotNull SlingContextBuilder beforeSetUp(@NotNull ContextCallback<? extends OsgiContextImpl> @NotNull ... beforeSetUpCallback) {
        plugins.addBeforeSetUpCallback(beforeSetUpCallback);
        return this;
    }

    /**
     * @param <T> context type
     * @param afterSetUpCallback Allows the application to register an own callback function that is called after the built-in setup rules are executed.
     * @return this
     */
    @SafeVarargs
    public final @NotNull SlingContextBuilder afterSetUp(@NotNull ContextCallback<? extends OsgiContextImpl> @NotNull ... afterSetUpCallback) {
        plugins.addAfterSetUpCallback(afterSetUpCallback);
        return this;
    }

    /**
     * @param <T> context type
     * @param beforeTearDownCallback Allows the application to register an own callback function that is called before the built-in teardown rules are executed.
     * @return this
     */
    @SafeVarargs
    public final @NotNull SlingContextBuilder beforeTearDown(@NotNull ContextCallback<? extends OsgiContextImpl> @NotNull ... beforeTearDownCallback) {
        plugins.addBeforeTearDownCallback(beforeTearDownCallback);
        return this;
    }

    /**
     * @param <T> context type
     * @param afterTearDownCallback Allows the application to register an own callback function that is after before the built-in teardown rules are executed.
     * @return this
     */
    @SafeVarargs
    public final @NotNull SlingContextBuilder afterTearDown(@NotNull ContextCallback<? extends OsgiContextImpl> @NotNull ... afterTearDownCallback) {
        plugins.addAfterTearDownCallback(afterTearDownCallback);
        return this;
    }

    /**
     * Allows to override OSGi configuration parameters for the Resource Resolver Factory Activator service.
     * @param props Configuration properties
     * @return this
     */
    public @NotNull SlingContextBuilder resourceResolverFactoryActivatorProps(@NotNull Map<String, Object> props) {
      this.resourceResolverFactoryActivatorProps = props;
      return this;
    }

    /**
     * Automatic registering of all Sling Models found in the classpath on startup (active by default).
     * @param registerSlingModelsFromClassPath If set to false Sling Models are not registered automatically from the classpath on startup.
     * @return this
     */
    public @NotNull SlingContextBuilder registerSlingModelsFromClassPath(boolean registerSlingModelsFromClassPath) {
      this.registerSlingModelsFromClassPath = registerSlingModelsFromClassPath;
      return this;
    }

    /**
     * @return Build {@link SlingContext} instance.
     */
    public @NotNull SlingContext build() {
        return new SlingContext(this.plugins,
                this.resourceResolverFactoryActivatorProps,
                this.resourceResolverType,
                this.registerSlingModelsFromClassPath);
    }

}