/*
Copyright © 2013-2014, Silent Circle, LLC.
All rights reserved.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
    * Any redistribution, use, or modification is done solely for personal 
      benefit and not for any commercial purpose or for monetary gain
    * Redistributions of source code must retain the above copyright
      notice, this list of conditions and the following disclaimer.
    * Redistributions in binary form must reproduce the above copyright
      notice, this list of conditions and the following disclaimer in the
      documentation and/or other materials provided with the distribution.
    * Neither the name Silent Circle nor the names of its contributors may 
      be used to endorse or promote products derived from this software 
      without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL SILENT CIRCLE, LLC BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/

/*
 * This  implementation is edited version of original Android sources.
 */

/*
 * Copyright (C) 2011 The Android Open Source Project
 *
 * 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.silentcircle.contacts.calllog;

import android.content.Context;
import android.graphics.Canvas;
import android.graphics.drawable.Drawable;
import android.provider.CallLog.Calls;
import android.util.AttributeSet;
import android.view.View;

import com.silentcircle.contacts.R;

import java.util.ArrayList;
import java.util.List;

/**
 * View that draws one or more symbols for different types of calls (missed calls, outgoing etc).
 * The symbols are set up horizontally. As this view doesn't create subviews, it is better suited
 * for ListView-recycling that a regular LinearLayout using ImageViews.
 */
public class CallTypeIconsView extends View {
    private List<Integer> mCallTypes = new ArrayList<Integer>(3);
    private Resources mResources;
    private int mWidth;
    private int mHeight;

    public CallTypeIconsView(Context context) {
        this(context, null);
    }

    public CallTypeIconsView(Context context, AttributeSet attrs) {
        super(context, attrs);
        mResources = new Resources(context);
    }

    public void clear() {
        mCallTypes.clear();
        mWidth = 0;
        mHeight = 0;
        invalidate();
    }

    public void add(int callType) {
        mCallTypes.add(callType);

        final Drawable drawable = getCallTypeDrawable(callType);
        mWidth += drawable.getIntrinsicWidth() + mResources.iconMargin;
        mHeight = Math.max(mHeight, drawable.getIntrinsicHeight());
        invalidate();
    }

    // @NeededForTesting
    public int getCount() {
        return mCallTypes.size();
    }

    // @NeededForTesting
    public int getCallType(int index) {
        return mCallTypes.get(index);
    }

    private Drawable getCallTypeDrawable(int callType) {
        switch (callType) {
            case Calls.INCOMING_TYPE:
                return mResources.incoming;
            case Calls.OUTGOING_TYPE:
                return mResources.outgoing;
            case Calls.MISSED_TYPE:
                return mResources.missed;
            default:
                throw new IllegalArgumentException("invalid call type: " + callType);
        }
    }

    @Override
    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
        setMeasuredDimension(mWidth, mHeight);
    }

    @Override
    protected void onDraw(Canvas canvas) {
        int left = 0;
        for (Integer callType : mCallTypes) {
            final Drawable drawable = getCallTypeDrawable(callType);
            final int right = left + drawable.getIntrinsicWidth();
            drawable.setBounds(left, 0, right, drawable.getIntrinsicHeight());
            drawable.draw(canvas);
            left = right + mResources.iconMargin;
        }
    }

    private static class Resources {
        public final Drawable incoming;
        public final Drawable outgoing;
        public final Drawable missed;
        public final int iconMargin;

        public Resources(Context context) {
            final android.content.res.Resources r = context.getResources();
            incoming = r.getDrawable(R.drawable.ic_call_incoming_holo_dark);
            outgoing = r.getDrawable(R.drawable.ic_call_outgoing_holo_dark);
            missed = r.getDrawable(R.drawable.ic_call_missed_holo_dark);
            iconMargin = r.getDimensionPixelSize(R.dimen.call_log_icon_margin);
        }
    }
}