package eu.siacs.conversations.ui;

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

import eu.siacs.conversations.R;
import eu.siacs.conversations.entities.Account;
import eu.siacs.conversations.services.XmppConnectionService.OnAccountUpdate;
import eu.siacs.conversations.ui.EditAccountDialog.EditAccountListener;
import eu.siacs.conversations.xmpp.OnTLSExceptionReceived;
import eu.siacs.conversations.xmpp.XmppConnection;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.DialogInterface.OnClickListener;
import android.content.Intent;
import android.os.Bundle;
import android.os.SystemClock;
import android.view.ActionMode;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.AdapterView.OnItemLongClickListener;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.TextView;

public class ManageAccountActivity extends XmppActivity {

	protected boolean isActionMode = false;
	protected ActionMode actionMode;
	protected Account selectedAccountForActionMode = null;
	protected ManageAccountActivity activity = this;

	protected boolean firstrun = true;

	protected List<Account> accountList = new ArrayList<Account>();
	protected ListView accountListView;
	protected ArrayAdapter<Account> accountListViewAdapter;
	protected OnAccountUpdate accountChanged = new OnAccountUpdate() {

		@Override
		public void onAccountUpdate() {
			accountList.clear();
			accountList.addAll(xmppConnectionService.getAccounts());
			runOnUiThread(new Runnable() {

				@Override
				public void run() {
					accountListViewAdapter.notifyDataSetChanged();
				}
			});
		}
	};

	@Override
	protected void onCreate(Bundle savedInstanceState) {

		super.onCreate(savedInstanceState);

		setContentView(R.layout.manage_accounts);

		accountListView = (ListView) findViewById(R.id.account_list);
		accountListViewAdapter = new ArrayAdapter<Account>(
				getApplicationContext(), R.layout.account_row, this.accountList) {
			@Override
			public View getView(int position, View view, ViewGroup parent) {
				Account account = getItem(position);
				if (view == null) {
					LayoutInflater inflater = (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE);
					view = (View) inflater.inflate(R.layout.account_row, null);
				}
				((TextView) view.findViewById(R.id.account_jid))
						.setText(account.getJid());
				TextView statusView = (TextView) view
						.findViewById(R.id.account_status);
				switch (account.getStatus()) {
				case Account.STATUS_DISABLED:
					statusView
							.setText(getString(R.string.account_status_disabled));
					statusView.setTextColor(0xFF1da9da);
					break;
				case Account.STATUS_ONLINE:
					statusView
							.setText(getString(R.string.account_status_online));
					statusView.setTextColor(0xFF83b600);
					break;
				case Account.STATUS_CONNECTING:
					statusView
							.setText(getString(R.string.account_status_connecting));
					statusView.setTextColor(0xFF1da9da);
					break;
				case Account.STATUS_OFFLINE:
					statusView
							.setText(getString(R.string.account_status_offline));
					statusView.setTextColor(0xFFe92727);
					break;
				case Account.STATUS_UNAUTHORIZED:
					statusView
							.setText(getString(R.string.account_status_unauthorized));
					statusView.setTextColor(0xFFe92727);
					break;
				case Account.STATUS_SERVER_NOT_FOUND:
					statusView
							.setText(getString(R.string.account_status_not_found));
					statusView.setTextColor(0xFFe92727);
					break;
				case Account.STATUS_NO_INTERNET:
					statusView
							.setText(getString(R.string.account_status_no_internet));
					statusView.setTextColor(0xFFe92727);
					break;
				case Account.STATUS_SERVER_REQUIRES_TLS:
					statusView
							.setText(getString(R.string.account_status_requires_tls));
					statusView.setTextColor(0xFFe92727);
					break;
				case Account.STATUS_TLS_ERROR:
					statusView
							.setText(getString(R.string.account_status_error));
					statusView.setTextColor(0xFFe92727);
					break;
				case Account.STATUS_REGISTRATION_FAILED:
					statusView
							.setText(getString(R.string.account_status_regis_fail));
					statusView.setTextColor(0xFFe92727);
					break;
				case Account.STATUS_REGISTRATION_CONFLICT:
					statusView
							.setText(getString(R.string.account_status_regis_conflict));
					statusView.setTextColor(0xFFe92727);
					break;
				case Account.STATUS_REGISTRATION_SUCCESSFULL:
					statusView
							.setText(getString(R.string.account_status_regis_success));
					statusView.setTextColor(0xFF83b600);
					break;
				case Account.STATUS_REGISTRATION_NOT_SUPPORTED:
					statusView
							.setText(getString(R.string.account_status_regis_not_sup));
					statusView.setTextColor(0xFFe92727);
					break;
				default:
					statusView.setText("");
					break;
				}

				return view;
			}
		};
		final XmppActivity activity = this;
		accountListView.setAdapter(this.accountListViewAdapter);
		accountListView.setOnItemClickListener(new OnItemClickListener() {

			@Override
			public void onItemClick(AdapterView<?> arg0, View view,
					int position, long arg3) {
				if (!isActionMode) {
					Account account = accountList.get(position);
					if ((account.getStatus() == Account.STATUS_OFFLINE)
							|| (account.getStatus() == Account.STATUS_TLS_ERROR)) {
						activity.xmppConnectionService.reconnectAccount(
								accountList.get(position), true);
					} else if (account.getStatus() == Account.STATUS_ONLINE) {
						activity.startActivity(new Intent(activity
								.getApplicationContext(),
								StartConversationActivity.class));
					} else if (account.getStatus() != Account.STATUS_DISABLED) {
						editAccount(account);
					}
				} else {
					selectedAccountForActionMode = accountList.get(position);
					actionMode.invalidate();
				}
			}
		});
		accountListView
				.setOnItemLongClickListener(new OnItemLongClickListener() {

					@Override
					public boolean onItemLongClick(AdapterView<?> arg0,
							View view, int position, long arg3) {
						if (!isActionMode) {
							accountListView
									.setChoiceMode(ListView.CHOICE_MODE_SINGLE);
							accountListView.setItemChecked(position, true);
							selectedAccountForActionMode = accountList
									.get(position);
							actionMode = activity
									.startActionMode((new ActionMode.Callback() {

										@Override
										public boolean onPrepareActionMode(
												ActionMode mode, Menu menu) {
											if (selectedAccountForActionMode
													.isOptionSet(Account.OPTION_DISABLED)) {
												menu.findItem(
														R.id.mgmt_account_enable)
														.setVisible(true);
												menu.findItem(
														R.id.mgmt_account_disable)
														.setVisible(false);
											} else {
												menu.findItem(
														R.id.mgmt_account_disable)
														.setVisible(true);
												menu.findItem(
														R.id.mgmt_account_enable)
														.setVisible(false);
											}
											return true;
										}

										@Override
										public void onDestroyActionMode(
												ActionMode mode) {
											// TODO Auto-generated method stub

										}

										@Override
										public boolean onCreateActionMode(
												ActionMode mode, Menu menu) {
											MenuInflater inflater = mode
													.getMenuInflater();
											inflater.inflate(
													R.menu.manageaccounts_context,
													menu);
											return true;
										}

										@Override
										public boolean onActionItemClicked(
												final ActionMode mode,
												MenuItem item) {
											if (item.getItemId() == R.id.mgmt_account_edit) {
												editAccount(selectedAccountForActionMode);
											} else if (item.getItemId() == R.id.mgmt_account_disable) {
												selectedAccountForActionMode
														.setOption(
																Account.OPTION_DISABLED,
																true);
												xmppConnectionService
														.updateAccount(selectedAccountForActionMode);
												mode.finish();
											} else if (item.getItemId() == R.id.mgmt_account_enable) {
												selectedAccountForActionMode
														.setOption(
																Account.OPTION_DISABLED,
																false);
												xmppConnectionService
														.updateAccount(selectedAccountForActionMode);
												mode.finish();
											} else if (item.getItemId() == R.id.mgmt_account_delete) {
												AlertDialog.Builder builder = new AlertDialog.Builder(
														activity);
												builder.setTitle(getString(R.string.mgmt_account_are_you_sure));
												builder.setIconAttribute(android.R.attr.alertDialogIcon);
												builder.setMessage(getString(R.string.mgmt_account_delete_confirm_text));
												builder.setPositiveButton(
														getString(R.string.delete),
														new OnClickListener() {

															@Override
															public void onClick(
																	DialogInterface dialog,
																	int which) {
																xmppConnectionService
																		.deleteAccount(selectedAccountForActionMode);
																selectedAccountForActionMode = null;
																mode.finish();
															}
														});
												builder.setNegativeButton(
														getString(R.string.cancel),
														null);
												builder.create().show();
											} else if (item.getItemId() == R.id.mgmt_account_announce_pgp) {
												if (activity.hasPgp()) {
													mode.finish();
													announcePgp(
															selectedAccountForActionMode,
															null);
												} else {
													activity.showInstallPgpDialog();
												}
											} else if (item.getItemId() == R.id.mgmt_otr_key) {
												AlertDialog.Builder builder = new AlertDialog.Builder(
														activity);
												builder.setTitle("OTR Fingerprint");
												String fingerprintTxt = selectedAccountForActionMode
														.getOtrFingerprint(getApplicationContext());
												View view = (View) getLayoutInflater()
														.inflate(
																R.layout.otr_fingerprint,
																null);
												if (fingerprintTxt != null) {
													TextView fingerprint = (TextView) view
															.findViewById(R.id.otr_fingerprint);
													TextView noFingerprintView = (TextView) view
															.findViewById(R.id.otr_no_fingerprint);
													fingerprint
															.setText(fingerprintTxt);
													fingerprint
															.setVisibility(View.VISIBLE);
													noFingerprintView
															.setVisibility(View.GONE);
												}
												builder.setView(view);
												builder.setPositiveButton(
														getString(R.string.done),
														null);
												builder.create().show();
											} else if (item.getItemId() == R.id.mgmt_account_info) {
												AlertDialog.Builder builder = new AlertDialog.Builder(
														activity);
												builder.setTitle(getString(R.string.account_info));
												if (selectedAccountForActionMode
														.getStatus() == Account.STATUS_ONLINE) {
													XmppConnection xmpp = selectedAccountForActionMode
															.getXmppConnection();
													long connectionAge = (SystemClock
															.elapsedRealtime() - xmpp.lastConnect) / 60000;
													long sessionAge = (SystemClock
															.elapsedRealtime() - xmpp.lastSessionStarted) / 60000;
													long connectionAgeHours = connectionAge / 60;
													long sessionAgeHours = sessionAge / 60;
													View view = (View) getLayoutInflater()
															.inflate(
																	R.layout.server_info,
																	null);
													TextView connection = (TextView) view
															.findViewById(R.id.connection);
													TextView session = (TextView) view
															.findViewById(R.id.session);
													TextView pcks_sent = (TextView) view
															.findViewById(R.id.pcks_sent);
													TextView pcks_received = (TextView) view
															.findViewById(R.id.pcks_received);
													TextView carbon = (TextView) view
															.findViewById(R.id.carbon);
													TextView stream = (TextView) view
															.findViewById(R.id.stream);
													TextView roster = (TextView) view
															.findViewById(R.id.roster);
													TextView presences = (TextView) view
															.findViewById(R.id.number_presences);
													presences.setText(selectedAccountForActionMode
															.countPresences()
															+ "");
													pcks_received.setText(""
															+ xmpp.getReceivedStanzas());
													pcks_sent.setText(""
															+ xmpp.getSentStanzas());
													if (connectionAgeHours >= 2) {
														connection
																.setText(connectionAgeHours
																		+ " "
																		+ getString(R.string.hours));
													} else {
														connection
																.setText(connectionAge
																		+ " "
																		+ getString(R.string.mins));
													}
													if (xmpp.hasFeatureStreamManagment()) {
														if (sessionAgeHours >= 2) {
															session.setText(sessionAgeHours
																	+ " "
																	+ getString(R.string.hours));
														} else {
															session.setText(sessionAge
																	+ " "
																	+ getString(R.string.mins));
														}
														stream.setText(getString(R.string.yes));
													} else {
														stream.setText(getString(R.string.no));
														session.setText(connection
																.getText());
													}
													if (xmpp.hasFeaturesCarbon()) {
														carbon.setText(getString(R.string.yes));
													} else {
														carbon.setText(getString(R.string.no));
													}
													if (xmpp.hasFeatureRosterManagment()) {
														roster.setText(getString(R.string.yes));
													} else {
														roster.setText(getString(R.string.no));
													}
													builder.setView(view);
												} else {
													builder.setMessage(getString(R.string.mgmt_account_account_offline));
												}
												builder.setPositiveButton(
														getString(R.string.hide),
														null);
												builder.create().show();
											}
											return true;
										}

									}));
							return true;
						} else {
							return false;
						}
					}
				});
	}

	@Override
	protected void onStop() {
		if (xmppConnectionServiceBound) {
			xmppConnectionService.removeOnAccountListChangedListener();
		}
		super.onStop();
	}

	@Override
	void onBackendConnected() {
		xmppConnectionService.setOnAccountListChangedListener(accountChanged);
		this.accountList.clear();
		this.accountList.addAll(xmppConnectionService.getAccounts());
		accountListViewAdapter.notifyDataSetChanged();
		if ((this.accountList.size() == 0) && (this.firstrun)) {
			getActionBar().setDisplayHomeAsUpEnabled(false);
			getActionBar().setHomeButtonEnabled(false);
			addAccount();
			this.firstrun = false;
		}
	}

	@Override
	public boolean onCreateOptionsMenu(Menu menu) {
		getMenuInflater().inflate(R.menu.manageaccounts, menu);
		return true;
	}

	@Override
	public boolean onOptionsItemSelected(MenuItem item) {
		switch (item.getItemId()) {
		case R.id.action_add_account:
			addAccount();
			break;
		default:
			break;
		}
		return super.onOptionsItemSelected(item);
	}

	@Override
	public boolean onNavigateUp() {
		if (xmppConnectionService.getConversations().size() == 0) {
			Intent contactsIntent = new Intent(this, StartConversationActivity.class);
			contactsIntent.setFlags(
			// if activity exists in stack, pop the stack and go back to it
					Intent.FLAG_ACTIVITY_CLEAR_TOP |
					// otherwise, make a new task for it
							Intent.FLAG_ACTIVITY_NEW_TASK |
							// don't use the new activity animation; finish
							// animation runs instead
							Intent.FLAG_ACTIVITY_NO_ANIMATION);
			startActivity(contactsIntent);
			finish();
			return true;
		} else {
			return super.onNavigateUp();
		}
	}

	private void editAccount(Account account) {
		EditAccountDialog dialog = new EditAccountDialog();
		dialog.setAccount(account);
		dialog.setEditAccountListener(new EditAccountListener() {

			@Override
			public void onAccountEdited(Account account) {
				xmppConnectionService.updateAccount(account);
				if (actionMode != null) {
					actionMode.finish();
				}
			}
		});
		dialog.show(getFragmentManager(), "edit_account");
		dialog.setKnownHosts(xmppConnectionService.getKnownHosts(), this);

	}

	protected void addAccount() {
		final Activity activity = this;
		EditAccountDialog dialog = new EditAccountDialog();
		dialog.setEditAccountListener(new EditAccountListener() {

			@Override
			public void onAccountEdited(Account account) {
				xmppConnectionService.createAccount(account);
				activity.getActionBar().setDisplayHomeAsUpEnabled(true);
				activity.getActionBar().setHomeButtonEnabled(true);
			}
		});
		dialog.show(getFragmentManager(), "add_account");
		dialog.setKnownHosts(xmppConnectionService.getKnownHosts(), this);
	}

	@Override
	public void onActionModeStarted(ActionMode mode) {
		super.onActionModeStarted(mode);
		this.isActionMode = true;
	}

	@Override
	public void onActionModeFinished(ActionMode mode) {
		super.onActionModeFinished(mode);
		this.isActionMode = false;
		accountListView.clearChoices();
		accountListView.requestLayout();
		accountListView.post(new Runnable() {
			@Override
			public void run() {
				accountListView.setChoiceMode(ListView.CHOICE_MODE_NONE);
			}
		});
	}

	@Override
	protected void onActivityResult(int requestCode, int resultCode, Intent data) {
		super.onActivityResult(requestCode, resultCode, data);
		if (resultCode == RESULT_OK) {
			if (requestCode == REQUEST_ANNOUNCE_PGP) {
				announcePgp(selectedAccountForActionMode, null);
			}
		}
	}
}