/*
 * Copyright 2000-2016 Vaadin Ltd.
 *
 * 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.vaadin.v7.ui;

import static org.junit.Assert.assertTrue;

import java.io.ByteArrayInputStream;
import java.io.File;
import java.lang.reflect.Field;
import java.nio.charset.Charset;
import java.util.Locale;

import org.jsoup.nodes.Attributes;
import org.jsoup.nodes.Element;
import org.jsoup.parser.Tag;
import org.junit.Before;
import org.junit.Test;

import com.vaadin.server.ErrorMessage.ErrorLevel;
import com.vaadin.server.ExternalResource;
import com.vaadin.server.FileResource;
import com.vaadin.server.Responsive;
import com.vaadin.server.ThemeResource;
import com.vaadin.server.UserError;
import com.vaadin.tests.design.DeclarativeTestBase;
import com.vaadin.ui.AbstractComponent;
import com.vaadin.ui.Label;
import com.vaadin.ui.declarative.Design;
import com.vaadin.ui.declarative.DesignContext;

/**
 * Test cases for reading and writing the properties of AbstractComponent.
 *
 * @since
 * @author Vaadin Ltd
 */
public class AbstractLegacyComponentDeclarativeTest
        extends DeclarativeTestBase<AbstractLegacyComponent> {

    private AbstractLegacyComponent component;

    @Before
    public void setUp() {
        NativeSelect ns = new NativeSelect();
        component = ns;
    }

    @Test
    public void testEmptyDesign() {
        String design = "<vaadin7-native-select>";
        testRead(design, component);
        testWrite(design, component);
    }

    @Test
    public void testProperties() {
        String design = "<vaadin7-native-select id=\"testId\" primary-style-name=\"test-style\" "
                + "caption=\"test-caption\" locale=\"fi_FI\" description=\"test-description\" "
                + "error=\"<div>test-error</div>\" />";
        component.setId("testId");
        component.setPrimaryStyleName("test-style");
        component.setCaption("test-caption");
        component.setLocale(new Locale("fi", "FI"));
        component.setDescription("test-description");
        component.setComponentError(new UserError("<div>test-error</div>",
                com.vaadin.server.AbstractErrorMessage.ContentMode.HTML,
                ErrorLevel.ERROR));
        component.setImmediate(true);
        testRead(design, component);
        testWrite(design, component);
    }

    @Test
    public void testReadImmediate() {
        // Additional tests for the immediate property, including
        // explicit immediate values
        String[] design = { "<vaadin7-native-select/>",
                "<vaadin7-native-select immediate=\"false\"/>",
                "<vaadin7-native-select immediate=\"true\"/>",
                "<vaadin7-native-select immediate />" };
        Boolean[] explicitImmediate = { null, Boolean.FALSE, Boolean.TRUE,
                Boolean.TRUE };
        boolean[] immediate = { true, false, true, true };
        for (int i = 0; i < design.length; i++) {
            component = (AbstractLegacyComponent) Design
                    .read(new ByteArrayInputStream(
                            design[i].getBytes(Charset.forName("UTF-8"))));
            assertEquals(immediate[i], component.isImmediate());
            assertEquals(explicitImmediate[i], getExplicitImmediate(component));
        }
    }

    @Test
    public void testExternalIcon() {
        String design = "<vaadin7-native-select icon=\"http://example.com/example.gif\"/>";
        component.setIcon(
                new ExternalResource("http://example.com/example.gif"));
        testRead(design, component);
        testWrite(design, component);
    }

    @Test
    public void testThemeIcon() {
        String design = "<vaadin7-native-select icon=\"theme://example.gif\"/>";
        component.setIcon(new ThemeResource("example.gif"));
        testRead(design, component);
        testWrite(design, component);
    }

    @Test
    public void testFileResourceIcon() {
        String design = "<vaadin7-native-select icon=\"img/example.gif\"/>";
        component.setIcon(new FileResource(new File("img/example.gif")));
        testRead(design, component);
        testWrite(design, component);
    }

    @Test
    public void testWidthAndHeight() {
        String design = "<vaadin7-native-select width=\"70%\" height=\"12px\"/>";
        component.setWidth("70%");
        component.setHeight("12px");
        testRead(design, component);
        testWrite(design, component);
    }

    @Test
    public void testSizeFull() {
        String design = "<vaadin7-native-select size-full />";
        component.setSizeFull();
        testRead(design, component);
        testWrite(design, component);
    }

    @Test
    public void testHeightFull() {
        String design = "<vaadin7-native-select height-full width=\"20px\"/>";
        component.setHeight("100%");
        component.setWidth("20px");
        testRead(design, component);
        testWrite(design, component);
    }

    @Test
    public void testWidthFull() {
        String design = "<vaadin7-native-select caption=\"Foo\" caption-as-html width-full height=\"20px\"></vaadin7-native-select>";
        AbstractLegacyComponent component = new NativeSelect();
        component.setCaptionAsHtml(true);
        component.setCaption("Foo");
        component.setHeight("20px");
        component.setWidth("100%");
        testRead(design, component);
        testWrite(design, component);
    }

    @Test
    public void testResponsive() {
        String design = "<vaadin7-native-select responsive />";
        Responsive.makeResponsive(component);
        testRead(design, component);
        testWrite(design, component);
    }

    @Test
    public void testResponsiveFalse() {
        String design = "<vaadin7-native-select responsive =\"false\"/>";
        // Only test read as the attribute responsive=false would not be written
        testRead(design, component);
    }

    @Test
    public void testReadAlreadyResponsive() {
        AbstractComponent component = new Label();
        Responsive.makeResponsive(component);
        Element design = createDesign(true);
        component.readDesign(design, new DesignContext());
        assertEquals("Component should have only one extension", 1,
                component.getExtensions().size());
    }

    @Test
    public void testUnknownProperties() {
        String design = "<vaadin7-native-select foo=\"bar\"/>";

        DesignContext context = readAndReturnContext(design);
        NativeSelect ns = (NativeSelect) context.getRootComponent();
        assertTrue("Custom attribute was preserved in custom attributes",
                context.getCustomAttributes(ns).containsKey("foo"));

        testWrite(ns, design, context);
    }

    private Element createDesign(boolean responsive) {
        Attributes attributes = new Attributes();
        attributes.put("responsive", responsive);
        Element node = new Element(Tag.valueOf("vaadin-label"), "", attributes);
        return node;
    }

    private Boolean getExplicitImmediate(AbstractLegacyComponent component) {
        try {
            Field immediate = AbstractLegacyComponent.class
                    .getDeclaredField("explicitImmediateValue");
            immediate.setAccessible(true);
            return (Boolean) immediate.get(component);
        } catch (Exception e) {
            throw new RuntimeException(
                    "Getting the field explicitImmediateValue failed.");
        }
    }
}