/**
 * Copyright 2013 Joan Zapata
 *
 * 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.bmob.lostfound.adapter;

import android.annotation.TargetApi;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.Typeface;
import android.graphics.drawable.Drawable;
import android.os.Build;
import android.text.util.Linkify;
import android.util.SparseArray;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.animation.AlphaAnimation;
import android.widget.ImageView;
import android.widget.ProgressBar;
import android.widget.RatingBar;
import android.widget.TextView;

import com.squareup.picasso.Picasso;
import com.squareup.picasso.RequestCreator;

/**
 * Allows an abstraction of the ViewHolder pattern.<br>
 * <br>
 * <p/>
 * <b>Usage</b>
 * <p/>
 * <pre>
 * return BaseAdapterHelper.get(context, convertView, parent, R.layout.item)
 *         .setText(R.id.tvName, contact.getName())
 *         .setText(R.id.tvEmails, contact.getEmails().toString())
 *         .setText(R.id.tvNumbers, contact.getNumbers().toString())
 *         .getView();
 * </pre>
 */
@TargetApi(Build.VERSION_CODES.HONEYCOMB)
public class BaseAdapterHelper {

    /** Views indexed with their IDs */
    private final SparseArray<View> views;

    private final Context context;

    private int position;

    private View convertView;

    private BaseAdapterHelper(Context context, ViewGroup parent, int layoutId, int position) {
        this.context = context;
        this.position = position;
        this.views = new SparseArray<View>();
        convertView = LayoutInflater.from(context) //
                .inflate(layoutId, parent, false);
        convertView.setTag(this);
    }

    /**
     * This method is the only entry point to get a BaseAdapterHelper.
     * @param context     The current context.
     * @param convertView The convertView arg passed to the getView() method.
     * @param parent      The parent arg passed to the getView() method.
     * @return A BaseAdapterHelper instance.
     */
    public static BaseAdapterHelper get(Context context, View convertView, ViewGroup parent, int layoutId) {
        return get(context, convertView, parent, layoutId, -1);
    }

    /** This method is package private and should only be used by QuickAdapter. */
    static BaseAdapterHelper get(Context context, View convertView, ViewGroup parent, int layoutId, int position) {
        if (convertView == null) {
            return new BaseAdapterHelper(context, parent, layoutId, position);
        }
        return (BaseAdapterHelper) convertView.getTag();
    }

    /**
     * This method allows you to retrieve a view and perform custom
     * operations on it, not covered by the BaseAdapterHelper.<br/>
     * If you think it's a common use case, please consider creating
     * a new issue at https://github.com/JoanZapata/base-adapter-helper/issues.
     * @param viewId The id of the view you want to retrieve.
     */
    public <T extends View> T getView(int viewId) {
        return retrieveView(viewId);
    }

    /**
     * Will set the text of a TextView.
     * @param viewId The view id.
     * @param value  The text to put in the text view.
     * @return The BaseAdapterHelper for chaining.
     */
    public BaseAdapterHelper setText(int viewId, String value) {
        TextView view = retrieveView(viewId);
        view.setText(value);
        return this;
    }

    /**
     * Will set the image of an ImageView from a resource id.
     * @param viewId     The view id.
     * @param imageResId The image resource id.
     * @return The BaseAdapterHelper for chaining.
     */
    public BaseAdapterHelper setImageResource(int viewId, int imageResId) {
        ImageView view = retrieveView(viewId);
        view.setImageResource(imageResId);
        return this;
    }

    /**
     * Will set background color of a view.
     * @param viewId The view id.
     * @param color  A color, not a resource id.
     * @return The BaseAdapterHelper for chaining.
     */
    public BaseAdapterHelper setBackgroundColor(int viewId, int color) {
        View view = retrieveView(viewId);
        view.setBackgroundColor(color);
        return this;
    }

    /**
     * Will set background of a view.
     * @param viewId        The view id.
     * @param backgroundRes A resource to use as a background.
     * @return The BaseAdapterHelper for chaining.
     */
    public BaseAdapterHelper setBackgroundRes(int viewId, int backgroundRes) {
        View view = retrieveView(viewId);
        view.setBackgroundResource(backgroundRes);
        return this;
    }

    /**
     * Will set text color of a TextView.
     * @param viewId    The view id.
     * @param textColor The text color (not a resource id).
     * @return The BaseAdapterHelper for chaining.
     */
    public BaseAdapterHelper setTextColor(int viewId, int textColor) {
        TextView view = retrieveView(viewId);
        view.setTextColor(textColor);
        return this;
    }

    /**
     * Will set the image of an ImageView from a drawable.
     * @param viewId   The view id.
     * @param drawable The image drawable.
     * @return The BaseAdapterHelper for chaining.
     */
    public BaseAdapterHelper setImageDrawable(int viewId, Drawable drawable) {
        ImageView view = retrieveView(viewId);
        view.setImageDrawable(drawable);
        return this;
    }

    /**
     * Will download an image from a URL and put it in an ImageView.<br/>
     * It uses Square's Picasso library to download the image asynchronously and put the result into the ImageView.<br/>
     * Picasso manages recycling of views in a ListView.<br/>
     * If you need more control over the Picasso settings, use {BaseAdapterHelper#setImageBuilder}.
     * @param viewId   The view id.
     * @param imageUrl The image URL.
     * @return The BaseAdapterHelper for chaining.
     */
    public BaseAdapterHelper setImageUrl(int viewId, String imageUrl) {
        ImageView view = retrieveView(viewId);
        Picasso.with(context).load(imageUrl).into(view);
        return this;
    }

    /**
     * Will download an image from a URL and put it in an ImageView.<br/>
     * @param viewId         The view id.
     * @param requestBuilder The Picasso request builder. (e.g. Picasso.with(context).load(imageUrl))
     * @return The BaseAdapterHelper for chaining.
     */
    public BaseAdapterHelper setImageBuilder(int viewId, RequestCreator requestBuilder) {
        ImageView view = retrieveView(viewId);
        requestBuilder.into(view);
        return this;
    }

    /** Add an action to set the image of an image view. Can be called multiple times. */
    public BaseAdapterHelper setImageBitmap(int viewId, Bitmap bitmap) {
        ImageView view = retrieveView(viewId);
        view.setImageBitmap(bitmap);
        return this;
    }

    /**
     * Add an action to set the alpha of a view. Can be called multiple times.
     * Alpha between 0-1.
     */
    public BaseAdapterHelper setAlpha(int viewId, float value) {
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
            retrieveView(viewId).setAlpha(value);
        } else {
            // Pre-honeycomb hack to set Alpha value
            AlphaAnimation alpha = new AlphaAnimation(value, value);
            alpha.setDuration(0);
            alpha.setFillAfter(true);
            retrieveView(viewId).startAnimation(alpha);
        }
        return this;
    }

    /**
     * Set a view visibility to VISIBLE (true) or GONE (false).
     * @param viewId  The view id.
     * @param visible True for VISIBLE, false for GONE.
     * @return The BaseAdapterHelper for chaining.
     */
    public BaseAdapterHelper setVisible(int viewId, boolean visible) {
        View view = retrieveView(viewId);
        view.setVisibility(visible ? View.VISIBLE : View.GONE);
        return this;
    }

    /**
     * Add links into a TextView.
     * @param viewId The id of the TextView to linkify.
     * @return The BaseAdapterHelper for chaining.
     */
    public BaseAdapterHelper linkify(int viewId) {
        TextView view = retrieveView(viewId);
        Linkify.addLinks(view, Linkify.ALL);
        return this;
    }

    /** Apply the typeface to the given viewId */
    public BaseAdapterHelper setTypeface(int viewId, Typeface typeface) {
        TextView view = retrieveView(viewId);
        view.setTypeface(typeface);
        return this;
    }

    /** Apply the typeface to all the given viewIds */
    public BaseAdapterHelper setTypeface(Typeface typeface, int... viewIds) {
        for (int viewId : viewIds) {
            TextView view = retrieveView(viewId);
            view.setTypeface(typeface);
        }
        return this;
    }

    /**
     * Sets the progress of a ProgressBar.
     * @param viewId   The view id.
     * @param progress The progress.
     * @return The BaseAdapterHelper for chaining.
     */
    public BaseAdapterHelper setProgress(int viewId, int progress) {
        ProgressBar view = retrieveView(viewId);
        view.setProgress(progress);
        return this;
    }

    /**
     * Sets the progress and max of a ProgressBar.
     * @param viewId   The view id.
     * @param progress The progress.
     * @param max      The max value of a ProgressBar.
     * @return The BaseAdapterHelper for chaining.
     */
    public BaseAdapterHelper setProgress(int viewId, int progress, int max) {
        ProgressBar view = retrieveView(viewId);
        view.setProgress(progress);
        view.setMax(max);
        return this;
    }

    /**
     * Sets the range of a ProgressBar to 0...max.
     * @param viewId The view id.
     * @param max    The max value of a ProgressBar.
     * @return The BaseAdapterHelper for chaining.
     */
    public BaseAdapterHelper setMax(int viewId, int max) {
        ProgressBar view = retrieveView(viewId);
        view.setMax(max);
        return this;
    }

    /**
     * Sets the rating (the number of stars filled) of a RatingBar.
     * @param viewId The view id.
     * @param rating The rating.
     * @return The BaseAdapterHelper for chaining.
     */
    public BaseAdapterHelper setRating(int viewId, float rating) {
        RatingBar view = retrieveView(viewId);
        view.setRating(rating);
        return this;
    }

    /**
     * Sets the rating (the number of stars filled) and max of a RatingBar.
     * @param viewId The view id.
     * @param rating The rating.
     * @param max    The range of the RatingBar to 0...max.
     * @return The BaseAdapterHelper for chaining.
     */
    public BaseAdapterHelper setRating(int viewId, float rating, int max) {
        RatingBar view = retrieveView(viewId);
        view.setRating(rating);
        view.setMax(max);
        return this;
    }

    /** Retrieve the convertView */
    public View getView() {
        return convertView;
    }

    /**
     * Retrieve the overall position of the data in the list.
     * @throws IllegalArgumentException If the position hasn't been set at the construction of the this helper.
     */
    public int getPosition() {
        if (position == -1)
            throw new IllegalStateException("Use BaseAdapterHelper constructor " +
                    "with position if you need to retrieve the position.");
        return position;
    }

    @SuppressWarnings("unchecked")
    private <T extends View> T retrieveView(int viewId) {
        View view = views.get(viewId);
        if (view == null) {
            view = convertView.findViewById(viewId);
            views.put(viewId, view);
        }
        return (T) view;
    }

}
