/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

package org.mozilla.geckoview_example;

import android.content.Context;
import android.graphics.Typeface;
import android.graphics.drawable.BitmapDrawable;
import android.graphics.drawable.GradientDrawable;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.PopupMenu;
import android.widget.TextView;
import androidx.core.content.ContextCompat;

public class ToolbarLayout extends LinearLayout {
  public interface TabListener {
    void switchToTab(int tabId);

    void onBrowserActionClick();
  }

  private LocationView mLocationView;
  private Button mTabsCountButton;
  private View mBrowserAction;
  private TabListener mTabListener;
  private TabSessionManager mSessionManager;

  public ToolbarLayout(Context context, TabSessionManager sessionManager) {
    super(context);
    mSessionManager = sessionManager;
    initView();
  }

  private void initView() {
    setLayoutParams(new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT, 1.0f));
    setOrientation(LinearLayout.HORIZONTAL);
    mLocationView = new LocationView(getContext());
    mLocationView.setLayoutParams(
        new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.MATCH_PARENT, 1.0f));
    mLocationView.setId(R.id.url_bar);
    addView(mLocationView);

    mTabsCountButton = getTabsCountButton();
    addView(mTabsCountButton);

    mBrowserAction = getBrowserAction();
    addView(mBrowserAction);
  }

  private Button getTabsCountButton() {
    Button button = new Button(getContext());
    button.setLayoutParams(new LayoutParams(150, LayoutParams.MATCH_PARENT));
    button.setId(R.id.tabs_button);
    button.setOnClickListener(this::onTabButtonClicked);
    button.setBackground(ContextCompat.getDrawable(getContext(), R.drawable.tab_number_background));
    button.setTypeface(button.getTypeface(), Typeface.BOLD);
    return button;
  }

  private View getBrowserAction() {
    View browserAction =
        ((LayoutInflater) getContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE))
            .inflate(R.layout.browser_action, this, false);
    browserAction.setVisibility(GONE);
    return browserAction;
  }

  public void setBrowserActionButton(ActionButton button) {
    if (button == null) {
      mBrowserAction.setVisibility(GONE);
      return;
    }

    BitmapDrawable drawable = new BitmapDrawable(getContext().getResources(), button.icon);
    ImageView view = mBrowserAction.findViewById(R.id.browser_action_icon);
    view.setOnClickListener(this::onBrowserActionButtonClicked);
    view.setBackground(drawable);

    TextView badge = mBrowserAction.findViewById(R.id.browser_action_badge);
    if (button.text != null && !button.text.equals("")) {
      if (button.backgroundColor != null) {
        GradientDrawable backgroundDrawable = ((GradientDrawable) badge.getBackground().mutate());
        backgroundDrawable.setColor(button.backgroundColor);
        backgroundDrawable.invalidateSelf();
      }
      if (button.textColor != null) {
        badge.setTextColor(button.textColor);
      }
      badge.setText(button.text);
      badge.setVisibility(VISIBLE);
    } else {
      badge.setVisibility(GONE);
    }

    mBrowserAction.setVisibility(VISIBLE);
  }

  public void onBrowserActionButtonClicked(View view) {
    mTabListener.onBrowserActionClick();
  }

  public LocationView getLocationView() {
    return mLocationView;
  }

  public void setTabListener(TabListener listener) {
    this.mTabListener = listener;
  }

  public void updateTabCount() {
    mTabsCountButton.setText(String.valueOf(mSessionManager.sessionCount()));
  }

  public void onTabButtonClicked(View view) {
    PopupMenu tabButtonMenu = new PopupMenu(getContext(), mTabsCountButton);
    for (int idx = 0; idx < mSessionManager.sessionCount(); ++idx) {
      tabButtonMenu.getMenu().add(0, idx, idx, mSessionManager.getSession(idx).getTitle());
    }
    tabButtonMenu.setOnMenuItemClickListener(
        item -> {
          mTabListener.switchToTab(item.getItemId());
          return true;
        });
    tabButtonMenu.show();
  }
}