/*
 * 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.android.browser;

import android.content.Context;
import android.util.AttributeSet;
import android.view.ContextThemeWrapper;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.LinearLayout;
import android.widget.ProgressBar;
import android.widget.Spinner;
import android.widget.TextView;

import com.android.browser.DeviceAccountLogin.AutoLoginCallback;

public class AutologinBar extends LinearLayout implements OnClickListener,
        AutoLoginCallback {

    protected Spinner mAutoLoginAccount;
    protected Button mAutoLoginLogin;
    protected ProgressBar mAutoLoginProgress;
    protected TextView mAutoLoginError;
    protected View mAutoLoginCancel;
    protected DeviceAccountLogin mAutoLoginHandler;
    protected ArrayAdapter<String> mAccountsAdapter;
    protected TitleBar mTitleBar;

    public AutologinBar(Context context) {
        super(context);
    }

    public AutologinBar(Context context, AttributeSet attrs) {
        super(context, attrs);
    }

    public AutologinBar(Context context, AttributeSet attrs, int defStyle) {
        super(context, attrs, defStyle);
    }

    @Override
    protected void onFinishInflate() {
        super.onFinishInflate();
        mAutoLoginAccount = (Spinner) findViewById(R.id.autologin_account);
        mAutoLoginLogin = (Button) findViewById(R.id.autologin_login);
        mAutoLoginLogin.setOnClickListener(this);
        mAutoLoginProgress = (ProgressBar) findViewById(R.id.autologin_progress);
        mAutoLoginError = (TextView) findViewById(R.id.autologin_error);
        mAutoLoginCancel = findViewById(R.id.autologin_close);
        mAutoLoginCancel.setOnClickListener(this);
    }

    public void setTitleBar(TitleBar titleBar) {
        mTitleBar = titleBar;
    }

    @Override
    public void onClick(View v) {
        if (mAutoLoginCancel == v) {
            if (mAutoLoginHandler != null) {
                mAutoLoginHandler.cancel();
                mAutoLoginHandler = null;
            }
            hideAutoLogin(true);
        } else if (mAutoLoginLogin == v) {
            if (mAutoLoginHandler != null) {
                mAutoLoginAccount.setEnabled(false);
                mAutoLoginLogin.setEnabled(false);
                mAutoLoginProgress.setVisibility(View.VISIBLE);
                mAutoLoginError.setVisibility(View.GONE);
                mAutoLoginHandler.login(
                        mAutoLoginAccount.getSelectedItemPosition(), this);
            }
        }
    }

    public void updateAutoLogin(Tab tab, boolean animate) {
        DeviceAccountLogin login = tab.getDeviceAccountLogin();
        if (login != null) {
            mAutoLoginHandler = login;
            ContextThemeWrapper wrapper = new ContextThemeWrapper(mContext,
                    android.R.style.Theme_Holo_Light);
            mAccountsAdapter = new ArrayAdapter<String>(wrapper,
                    android.R.layout.simple_spinner_item, login.getAccountNames());
            mAccountsAdapter.setDropDownViewResource(
                    android.R.layout.simple_spinner_dropdown_item);
            mAutoLoginAccount.setAdapter(mAccountsAdapter);
            mAutoLoginAccount.setSelection(0);
            mAutoLoginAccount.setEnabled(true);
            mAutoLoginLogin.setEnabled(true);
            mAutoLoginProgress.setVisibility(View.INVISIBLE);
            mAutoLoginError.setVisibility(View.GONE);
            switch (login.getState()) {
                case DeviceAccountLogin.PROCESSING:
                    mAutoLoginAccount.setEnabled(false);
                    mAutoLoginLogin.setEnabled(false);
                    mAutoLoginProgress.setVisibility(View.VISIBLE);
                    break;
                case DeviceAccountLogin.FAILED:
                    mAutoLoginProgress.setVisibility(View.INVISIBLE);
                    mAutoLoginError.setVisibility(View.VISIBLE);
                    break;
                case DeviceAccountLogin.INITIAL:
                    break;
                default:
                    throw new IllegalStateException();
            }
            showAutoLogin(animate);
        } else {
            hideAutoLogin(animate);
        }
    }

    void showAutoLogin(boolean animate) {
        mTitleBar.showAutoLogin(animate);
    }

    void hideAutoLogin(boolean animate) {
        mTitleBar.hideAutoLogin(animate);
    }

    @Override
    public void loginFailed() {
        mAutoLoginAccount.setEnabled(true);
        mAutoLoginLogin.setEnabled(true);
        mAutoLoginProgress.setVisibility(View.INVISIBLE);
        mAutoLoginError.setVisibility(View.VISIBLE);
    }

}