package org.thoughtcrime.securesms.contactshare;

import android.annotation.SuppressLint;
import android.content.Context;
import android.content.Intent;
import android.content.res.TypedArray;
import android.net.Uri;
import android.os.AsyncTask;
import android.os.Build;
import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.support.v7.widget.Toolbar;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.TextView;

import com.bumptech.glide.load.engine.DiskCacheStrategy;

import org.thoughtcrime.securesms.ApplicationContext;
import org.thoughtcrime.securesms.PassphraseRequiredActionBarActivity;
import network.loki.messenger.R;
import org.thoughtcrime.securesms.database.RecipientDatabase;
import org.thoughtcrime.securesms.jobs.DirectoryRefreshJob;
import org.thoughtcrime.securesms.mms.GlideApp;
import org.thoughtcrime.securesms.mms.GlideRequests;
import org.thoughtcrime.securesms.recipients.Recipient;
import org.thoughtcrime.securesms.recipients.RecipientModifiedListener;
import org.thoughtcrime.securesms.util.CommunicationActions;
import org.thoughtcrime.securesms.util.DynamicLanguage;
import org.thoughtcrime.securesms.util.DynamicNoActionBarTheme;
import org.thoughtcrime.securesms.util.DynamicTheme;
import org.thoughtcrime.securesms.util.Util;

import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import static org.thoughtcrime.securesms.mms.DecryptableStreamUriLoader.*;

public class SharedContactDetailsActivity extends PassphraseRequiredActionBarActivity implements RecipientModifiedListener {

  private static final int    CODE_ADD_EDIT_CONTACT = 2323;
  private static final String KEY_CONTACT           = "contact";

  private ContactFieldAdapter contactFieldAdapter;
  private TextView            nameView;
  private TextView            numberView;
  private ImageView           avatarView;
  private View                addButtonView;
  private View                inviteButtonView;
  private ViewGroup           engageContainerView;
  private View                messageButtonView;
  private View                callButtonView;

  private GlideRequests       glideRequests;
  private Contact             contact;

  private final DynamicTheme    dynamicTheme    = new DynamicNoActionBarTheme();
  private final DynamicLanguage dynamicLanguage = new DynamicLanguage();

  private final Map<String, Recipient> activeRecipients = new HashMap<>();

  public static Intent getIntent(@NonNull Context context, @NonNull Contact contact) {
    Intent intent = new Intent(context, SharedContactDetailsActivity.class);
    intent.putExtra(KEY_CONTACT, contact);
    return intent;
  }

  @Override
  protected void onPreCreate() {
    dynamicTheme.onCreate(this);
    dynamicLanguage.onCreate(this);
  }

  @Override
  protected void onCreate(@Nullable Bundle savedInstanceState, boolean ready) {
    setContentView(R.layout.activity_shared_contact_details);

    if (getIntent() == null) {
      throw new IllegalStateException("You must supply arguments to this activity. Please use the #getIntent() method.");
    }

    contact = getIntent().getParcelableExtra(KEY_CONTACT);
    if (contact == null) {
      throw new IllegalStateException("You must supply a contact to this activity. Please use the #getIntent() method.");
    }

    initToolbar();
    initViews();

    presentContact(contact);
    presentActionButtons(ContactUtil.getRecipients(this, contact));
    presentAvatar(contact.getAvatarAttachment() != null ? contact.getAvatarAttachment().getDataUri() : null);
  }

  @Override
  protected void onResume() {
    super.onResume();
    dynamicTheme.onCreate(this);
    dynamicTheme.onResume(this);
  }

  private void initToolbar() {
    Toolbar toolbar = findViewById(R.id.toolbar);
    setSupportActionBar(toolbar);
    getSupportActionBar().setDisplayHomeAsUpEnabled(true);
    getSupportActionBar().setLogo(null);
    getSupportActionBar().setTitle("");
    toolbar.setNavigationOnClickListener(v -> onBackPressed());

    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
      int[]      attrs = {R.attr.shared_contact_details_titlebar};
      TypedArray array = obtainStyledAttributes(attrs);
      int        color = array.getResourceId(0, android.R.color.black);

      array.recycle();

      getWindow().setStatusBarColor(getResources().getColor(color));
    }
  }

  private void initViews() {
    nameView            = findViewById(R.id.contact_details_name);
    numberView          = findViewById(R.id.contact_details_number);
    avatarView          = findViewById(R.id.contact_details_avatar);
    addButtonView       = findViewById(R.id.contact_details_add_button);
    inviteButtonView    = findViewById(R.id.contact_details_invite_button);
    engageContainerView = findViewById(R.id.contact_details_engage_container);
    messageButtonView   = findViewById(R.id.contact_details_message_button);
    callButtonView      = findViewById(R.id.contact_details_call_button);

    contactFieldAdapter = new ContactFieldAdapter(dynamicLanguage.getCurrentLocale(), glideRequests, false);

    RecyclerView list = findViewById(R.id.contact_details_fields);
    list.setLayoutManager(new LinearLayoutManager(this));
    list.setAdapter(contactFieldAdapter);

    glideRequests = GlideApp.with(this);
  }

  @Override
  public void onModified(Recipient recipient) {
    Util.runOnMain(() -> presentActionButtons(Collections.singletonList(recipient)));
  }

  @SuppressLint("StaticFieldLeak")
  private void presentContact(@Nullable Contact contact) {
    this.contact = contact;

    if (contact != null) {
      nameView.setText(ContactUtil.getDisplayName(contact));
      numberView.setText(ContactUtil.getDisplayNumber(contact, dynamicLanguage.getCurrentLocale()));

      addButtonView.setOnClickListener(v -> {
        new AsyncTask<Void, Void, Intent>() {
          @Override
          protected Intent doInBackground(Void... voids) {
            return ContactUtil.buildAddToContactsIntent(SharedContactDetailsActivity.this, contact);
          }

          @Override
          protected void onPostExecute(Intent intent) {
            startActivityForResult(intent, CODE_ADD_EDIT_CONTACT);
          }
        }.execute();
      });

      contactFieldAdapter.setFields(this, null, contact.getPhoneNumbers(), contact.getEmails(), contact.getPostalAddresses());
    } else {
      nameView.setText("");
      numberView.setText("");
    }
  }

  public void presentAvatar(@Nullable Uri uri) {
    if (uri != null) {
      glideRequests.load(new DecryptableUri(uri))
          .fallback(R.drawable.ic_contact_picture)
          .circleCrop()
          .diskCacheStrategy(DiskCacheStrategy.ALL)
          .into(avatarView);
    } else {
      glideRequests.load(R.drawable.ic_contact_picture)
          .circleCrop()
          .diskCacheStrategy(DiskCacheStrategy.ALL)
          .into(avatarView);
    }
  }

  private void presentActionButtons(@NonNull List<Recipient> recipients) {
    for (Recipient recipient : recipients) {
      activeRecipients.put(recipient.getAddress().serialize(), recipient);
    }

    List<Recipient> pushUsers   = new ArrayList<>(recipients.size());
    List<Recipient> systemUsers = new ArrayList<>(recipients.size());

    for (Recipient recipient : activeRecipients.values()) {
      recipient.addListener(this);

      if (recipient.getRegistered() == RecipientDatabase.RegisteredState.REGISTERED) {
        pushUsers.add(recipient);
      } else if (recipient.isSystemContact()) {
        systemUsers.add(recipient);
      }
    }

    if (!pushUsers.isEmpty()) {
      engageContainerView.setVisibility(View.VISIBLE);
      inviteButtonView.setVisibility(View.GONE);

      messageButtonView.setOnClickListener(v -> {
        ContactUtil.selectRecipientThroughDialog(this, pushUsers, dynamicLanguage.getCurrentLocale(), recipient -> {
          CommunicationActions.startConversation(this, recipient, null);
        });
      });

      callButtonView.setOnClickListener(v -> {
        ContactUtil.selectRecipientThroughDialog(this, pushUsers, dynamicLanguage.getCurrentLocale(), recipient -> CommunicationActions.startVoiceCall(this, recipient));
      });
    } else if (!systemUsers.isEmpty()) {
      inviteButtonView.setVisibility(View.VISIBLE);
      engageContainerView.setVisibility(View.GONE);

      inviteButtonView.setOnClickListener(v -> {
        ContactUtil.selectRecipientThroughDialog(this, systemUsers, dynamicLanguage.getCurrentLocale(), recipient -> {
          CommunicationActions.composeSmsThroughDefaultApp(this, recipient.getAddress(), getString(R.string.InviteActivity_lets_switch_to_signal, getString(R.string.install_url)));
        });
      });
    } else {
      inviteButtonView.setVisibility(View.GONE);
      engageContainerView.setVisibility(View.GONE);
    }
  }

  private void clearView() {
    nameView.setText("");
    numberView.setText("");
    inviteButtonView.setVisibility(View.GONE);
    engageContainerView.setVisibility(View.GONE);
  }

  @Override
  protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);

    if (requestCode == CODE_ADD_EDIT_CONTACT && contact != null) {
      ApplicationContext.getInstance(getApplicationContext())
                        .getJobManager()
                        .add(new DirectoryRefreshJob(false));
    }
  }
}