/*
 * Copyright (C) 2019 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.android.internal.app.chooser;

import android.annotation.NonNull;
import android.annotation.Nullable;
import android.app.Activity;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.pm.ActivityInfo;
import android.content.pm.ApplicationInfo;
import android.content.pm.ResolveInfo;
import android.graphics.drawable.Drawable;
import android.os.Bundle;
import android.os.UserHandle;

import com.android.internal.app.ResolverActivity;
import com.android.internal.app.ResolverListAdapter.ResolveInfoPresentationGetter;

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

/**
 * A TargetInfo plus additional information needed to render it (such as icon and label) and
 * resolve it to an activity.
 */
public class DisplayResolveInfo implements TargetInfo {
    // Temporary flag for new chooser delegate behavior. There are occassional token
    // permission errors from bouncing through the delegate. Watch out before reenabling:
    // b/157272342 is one example but this issue has been reported many times
    private static final boolean ENABLE_CHOOSER_DELEGATE = false;

    private final ResolveInfo mResolveInfo;
    private CharSequence mDisplayLabel;
    private Drawable mDisplayIcon;
    private CharSequence mExtendedInfo;
    private final Intent mResolvedIntent;
    private final List<Intent> mSourceIntents = new ArrayList<>();
    private boolean mIsSuspended;
    private ResolveInfoPresentationGetter mResolveInfoPresentationGetter;
    private boolean mPinned = false;

    public DisplayResolveInfo(Intent originalIntent, ResolveInfo pri, Intent pOrigIntent,
            ResolveInfoPresentationGetter resolveInfoPresentationGetter) {
        this(originalIntent, pri, null /*mDisplayLabel*/, null /*mExtendedInfo*/, pOrigIntent,
                resolveInfoPresentationGetter);
    }

    public DisplayResolveInfo(Intent originalIntent, ResolveInfo pri, CharSequence pLabel,
            CharSequence pInfo, @NonNull Intent resolvedIntent,
            @Nullable ResolveInfoPresentationGetter resolveInfoPresentationGetter) {
        mSourceIntents.add(originalIntent);
        mResolveInfo = pri;
        mDisplayLabel = pLabel;
        mExtendedInfo = pInfo;
        mResolveInfoPresentationGetter = resolveInfoPresentationGetter;

        final Intent intent = new Intent(resolvedIntent);
        intent.addFlags(Intent.FLAG_ACTIVITY_FORWARD_RESULT
                | Intent.FLAG_ACTIVITY_PREVIOUS_IS_TOP);
        final ActivityInfo ai = mResolveInfo.activityInfo;
        intent.setComponent(new ComponentName(ai.applicationInfo.packageName, ai.name));

        mIsSuspended = (ai.applicationInfo.flags & ApplicationInfo.FLAG_SUSPENDED) != 0;

        mResolvedIntent = intent;
    }

    private DisplayResolveInfo(DisplayResolveInfo other, Intent fillInIntent, int flags,
            ResolveInfoPresentationGetter resolveInfoPresentationGetter) {
        mSourceIntents.addAll(other.getAllSourceIntents());
        mResolveInfo = other.mResolveInfo;
        mDisplayLabel = other.mDisplayLabel;
        mDisplayIcon = other.mDisplayIcon;
        mExtendedInfo = other.mExtendedInfo;
        mResolvedIntent = new Intent(other.mResolvedIntent);
        mResolvedIntent.fillIn(fillInIntent, flags);
        mResolveInfoPresentationGetter = resolveInfoPresentationGetter;
    }

    DisplayResolveInfo(DisplayResolveInfo other) {
        mSourceIntents.addAll(other.getAllSourceIntents());
        mResolveInfo = other.mResolveInfo;
        mDisplayLabel = other.mDisplayLabel;
        mDisplayIcon = other.mDisplayIcon;
        mExtendedInfo = other.mExtendedInfo;
        mResolvedIntent = other.mResolvedIntent;
        mResolveInfoPresentationGetter = other.mResolveInfoPresentationGetter;
    }

    public ResolveInfo getResolveInfo() {
        return mResolveInfo;
    }

    public CharSequence getDisplayLabel() {
        if (mDisplayLabel == null && mResolveInfoPresentationGetter != null) {
            mDisplayLabel = mResolveInfoPresentationGetter.getLabel();
            mExtendedInfo = mResolveInfoPresentationGetter.getSubLabel();
        }
        return mDisplayLabel;
    }

    public boolean hasDisplayLabel() {
        return mDisplayLabel != null;
    }

    public void setDisplayLabel(CharSequence displayLabel) {
        mDisplayLabel = displayLabel;
    }

    public void setExtendedInfo(CharSequence extendedInfo) {
        mExtendedInfo = extendedInfo;
    }

    public Drawable getDisplayIcon(Context context) {
        return mDisplayIcon;
    }

    @Override
    public TargetInfo cloneFilledIn(Intent fillInIntent, int flags) {
        return new DisplayResolveInfo(this, fillInIntent, flags, mResolveInfoPresentationGetter);
    }

    @Override
    public List<Intent> getAllSourceIntents() {
        return mSourceIntents;
    }

    public void addAlternateSourceIntent(Intent alt) {
        mSourceIntents.add(alt);
    }

    public void setDisplayIcon(Drawable icon) {
        mDisplayIcon = icon;
    }

    public boolean hasDisplayIcon() {
        return mDisplayIcon != null;
    }

    public CharSequence getExtendedInfo() {
        return mExtendedInfo;
    }

    public Intent getResolvedIntent() {
        return mResolvedIntent;
    }

    @Override
    public ComponentName getResolvedComponentName() {
        return new ComponentName(mResolveInfo.activityInfo.packageName,
                mResolveInfo.activityInfo.name);
    }

    @Override
    public boolean start(Activity activity, Bundle options) {
        activity.startActivity(mResolvedIntent, options);
        return true;
    }

    @Override
    public boolean startAsCaller(ResolverActivity activity, Bundle options, int userId) {
        if (ENABLE_CHOOSER_DELEGATE) {
            return activity.startAsCallerImpl(mResolvedIntent, options, false, userId);
        } else {
            activity.startActivityAsCaller(mResolvedIntent, options, null, false, userId);
            return true;
        }
    }

    @Override
    public boolean startAsUser(Activity activity, Bundle options, UserHandle user) {
        activity.startActivityAsUser(mResolvedIntent, options, user);
        return false;
    }

    public boolean isSuspended() {
        return mIsSuspended;
    }

    @Override
    public boolean isPinned() {
        return mPinned;
    }

    public void setPinned(boolean pinned) {
        mPinned = pinned;
    }

}