package org.apache.struts2.views.freemarker;

import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.mock.MockActionInvocation;
import com.opensymphony.xwork2.util.ClassLoaderUtil;
import com.opensymphony.xwork2.util.ValueStack;
import com.opensymphony.xwork2.util.fs.DefaultFileManagerFactory;
import freemarker.template.Configuration;
import freemarker.template.TemplateException;
import freemarker.template.TemplateExceptionHandler;
import org.apache.struts2.ServletActionContext;
import org.apache.struts2.StrutsInternalTestCase;
import org.apache.struts2.StrutsStatics;
import org.apache.struts2.dispatcher.mapper.ActionMapper;
import org.apache.struts2.dispatcher.mapper.ActionMapping;
import org.apache.struts2.views.jsp.StrutsMockHttpServletResponse;
import org.easymock.EasyMock;
import org.springframework.mock.web.MockHttpServletRequest;

import javax.servlet.ServletContext;
import java.io.File;
import java.io.PrintWriter;
import java.io.StringWriter;
import java.net.MalformedURLException;
import java.net.URISyntaxException;

import static org.apache.struts2.views.jsp.AbstractUITagTest.normalize;

public class FreemarkerResultMockedTest extends StrutsInternalTestCase {

    ValueStack stack;
    MockActionInvocation invocation;
    ActionContext context;
    StrutsMockHttpServletResponse response;
    PrintWriter writer;
    StringWriter stringWriter;
    ServletContext servletContext;
    MockHttpServletRequest request;

    Configuration freemarkerConfig;

    public void testActionThatThrowsExceptionTag() throws Exception {
        File file = new File(FreeMarkerResultTest.class.getResource("callActionFreeMarker2.ftl").toURI());
        EasyMock.expect(servletContext.getRealPath("/tutorial/org/apache/struts2/views/freemarker/callActionFreeMarker.ftl")).andReturn(file.getAbsolutePath());
        file = new File(FreeMarkerResultTest.class.getResource("nested.ftl").toURI());
        EasyMock.expect(servletContext.getRealPath("/tutorial/org/apache/struts2/views/freemarker/nested.ftl")).andReturn(file.getAbsolutePath());
        EasyMock.replay(servletContext);

        init();

        request.setRequestURI("/tutorial/test2.action");
        ActionMapping mapping = container.getInstance(ActionMapper.class).getMapping(request, configurationManager);
        dispatcher.serviceAction(request, response, mapping);
        assertEquals("beforenestedafter", stringWriter.toString());
    }

    public void testActionThatSucceedsTag() throws Exception {
        File file = new File(FreeMarkerResultTest.class.getResource("callActionFreeMarker2.ftl").toURI());
        EasyMock.expect(servletContext.getRealPath("/tutorial/org/apache/struts2/views/freemarker/callActionFreeMarker2.ftl")).andReturn(file.getAbsolutePath());
        file = new File(FreeMarkerResultTest.class.getResource("nested.ftl").toURI());
        EasyMock.expect(servletContext.getRealPath("/tutorial/org/apache/struts2/views/freemarker/nested.ftl")).andReturn(file.getAbsolutePath());
        EasyMock.replay(servletContext);

        init();

        request.setRequestURI("/tutorial/test5.action");
        ActionMapping mapping = container.getInstance(ActionMapper.class).getMapping(request, configurationManager);
        dispatcher.serviceAction(request, response, mapping);
        assertEquals("beforenestedafter", stringWriter.toString());
    }

    public void testDynamicAttributesSupport() throws Exception {
        File file = new File(FreeMarkerResultTest.class.getResource("dynaAttributes.ftl").toURI());
        EasyMock.expect(servletContext.getRealPath("/tutorial/org/apache/struts2/views/freemarker/dynaAttributes.ftl")).andReturn(file.getAbsolutePath());

        file = new File(ClassLoaderUtil.getResource("template/simple/text.ftl", getClass()).toURI());
        EasyMock.expect(servletContext.getRealPath("/template/simple/text.ftl")).andReturn(file.getAbsolutePath());

        file = new File(ClassLoaderUtil.getResource("template/simple/css.ftl", getClass()).toURI());
        EasyMock.expect(servletContext.getRealPath("/template/simple/css.ftl")).andReturn(file.getAbsolutePath());
        EasyMock.expect(servletContext.getRealPath("/template/~~~simple/css.ftl")).andReturn(file.getAbsolutePath());

        file = new File(ClassLoaderUtil.getResource("template/simple/scripting-events.ftl", getClass()).toURI());
        EasyMock.expect(servletContext.getRealPath("/template/simple/scripting-events.ftl")).andReturn(file.getAbsolutePath());
        EasyMock.expect(servletContext.getRealPath("/template/~~~simple/scripting-events.ftl")).andReturn(file.getAbsolutePath());

        file = new File(ClassLoaderUtil.getResource("template/simple/common-attributes.ftl", getClass()).toURI());
        EasyMock.expect(servletContext.getRealPath("/template/simple/common-attributes.ftl")).andReturn(file.getAbsolutePath());
        EasyMock.expect(servletContext.getRealPath("/template/~~~simple/common-attributes.ftl")).andReturn(file.getAbsolutePath());

        file = new File(ClassLoaderUtil.getResource("template/simple/dynamic-attributes.ftl", getClass()).toURI());
        EasyMock.expect(servletContext.getRealPath("/template/simple/dynamic-attributes.ftl")).andReturn(file.getAbsolutePath());
        EasyMock.expect(servletContext.getRealPath("/template/~~~simple/dynamic-attributes.ftl")).andReturn(file.getAbsolutePath());

        EasyMock.replay(servletContext);

        init();

        request.setRequestURI("/tutorial/test6.action");
        ActionMapping mapping = container.getInstance(ActionMapper.class).getMapping(request, configurationManager);
        dispatcher.serviceAction(request, response, mapping);

        // TODO lukaszlenart: remove expectedJDK15 and if() after switching to Java 1.6
        String expectedJDK17 =
                "<input type=\"text\" name=\"test\" value=\"\" id=\"test\" placeholder=\"input\" foo=\"bar\"/>"
                        + "<input type=\"text\" name=\"test\" value=\"\" id=\"test\" placeholder=\"input\" foo=\"bar\"/>"
                        + "<input type=\"text\" name=\"test\" value=\"\" id=\"test\" break=\"true\"/>"
                        + "<input type=\"text\" name=\"required\" value=\"\" id=\"required\" required=\"true\"/>";
        String expectedJDK18 =
                "<input type=\"text\" name=\"test\" value=\"\" id=\"test\" foo=\"bar\" placeholder=\"input\"/>"
                        + "<input type=\"text\" name=\"test\" value=\"\" id=\"test\" foo=\"bar\" placeholder=\"input\"/>"
                        + "<input type=\"text\" name=\"test\" value=\"\" id=\"test\" break=\"true\"/>"
                        + "<input type=\"text\" name=\"required\" value=\"\" id=\"required\" required=\"true\"/>";

        String result = stringWriter.toString();

        if (result.contains("id=\"test\" foo=\"bar\"")) {
            assertEquals(expectedJDK18, result);
        } else {
            assertEquals(expectedJDK17, result);
        }
    }

    public void testManualListInTemplate() throws Exception {
        File file = new File(FreeMarkerResultTest.class.getResource("manual-list.ftl").toURI());
        EasyMock.expect(servletContext.getRealPath("/tutorial/org/apache/struts2/views/freemarker/manual-list.ftl")).andReturn(file.getAbsolutePath());

        file = new File(ClassLoaderUtil.getResource("template/simple/radiomap.ftl", getClass()).toURI());
        EasyMock.expect(servletContext.getRealPath("/template/simple/radiomap.ftl")).andReturn(file.getAbsolutePath());

        file = new File(ClassLoaderUtil.getResource("template/simple/css.ftl", getClass()).toURI());
        EasyMock.expect(servletContext.getRealPath("/template/simple/css.ftl")).andReturn(file.getAbsolutePath());
        EasyMock.expect(servletContext.getRealPath("/template/~~~simple/css.ftl")).andReturn(file.getAbsolutePath());

        file = new File(ClassLoaderUtil.getResource("template/simple/scripting-events.ftl", getClass()).toURI());
        EasyMock.expect(servletContext.getRealPath("/template/simple/scripting-events.ftl")).andReturn(file.getAbsolutePath());
        EasyMock.expect(servletContext.getRealPath("/template/~~~simple/scripting-events.ftl")).andReturn(file.getAbsolutePath());

        file = new File(ClassLoaderUtil.getResource("template/simple/common-attributes.ftl", getClass()).toURI());
        EasyMock.expect(servletContext.getRealPath("/template/simple/common-attributes.ftl")).andReturn(file.getAbsolutePath());
        EasyMock.expect(servletContext.getRealPath("/template/~~~simple/common-attributes.ftl")).andReturn(file.getAbsolutePath());

        file = new File(ClassLoaderUtil.getResource("template/simple/dynamic-attributes.ftl", getClass()).toURI());
        EasyMock.expect(servletContext.getRealPath("/template/simple/dynamic-attributes.ftl")).andReturn(file.getAbsolutePath());
        EasyMock.expect(servletContext.getRealPath("/template/~~~simple/dynamic-attributes.ftl")).andReturn(file.getAbsolutePath());

        EasyMock.replay(servletContext);

        init();

        request.setRequestURI("/tutorial/test7.action");
        ActionMapping mapping = container.getInstance(ActionMapper.class).getMapping(request, configurationManager);
        dispatcher.serviceAction(request, response, mapping);
        String expected = "<input type=\"radio\" name=\"client\" id=\"client_foo\" value=\"foo\"/><label for=\"client_foo\">foo</label>\n"
                + "<input type=\"radio\" name=\"client\" id=\"client_bar\" value=\"bar\"/><label for=\"client_bar\">bar</label>\n"
                + "\n"
                + "<input type=\"radio\" name=\"car\" id=\"carford\" value=\"ford\"/><label for=\"carford\">Ford Motor Co</label>\n"
                + "<input type=\"radio\" name=\"car\" id=\"cartoyota\" value=\"toyota\"/><label for=\"cartoyota\">Toyota</label>\n";
        assertEquals(normalize(expected), normalize(stringWriter.toString()));
    }

    public void testDynamicAttributesInTheme() throws Exception {
        File file = new File(FreeMarkerResultTest.class.getResource("customTextField.ftl").toURI());
        EasyMock.expect(servletContext.getRealPath("/tutorial/org/apache/struts2/views/freemarker/customTextField.ftl")).andReturn(file.getAbsolutePath());

        file = new File(ClassLoaderUtil.getResource("template/test/text.ftl", getClass()).toURI());
        EasyMock.expect(servletContext.getRealPath("/template/test/text.ftl")).andReturn(file.getAbsolutePath());

        EasyMock.replay(servletContext);

        init();

        request.setRequestURI("/tutorial/test8.action");
        ActionMapping mapping = container.getInstance(ActionMapper.class).getMapping(request, configurationManager);
        dispatcher.serviceAction(request, response, mapping);
        String expected = "<input type=\"text\"autofocus=\"autofocus\"/>";
        assertEquals(expected, stringWriter.toString());
    }

    private void init() throws MalformedURLException, URISyntaxException {
        stringWriter = new StringWriter();
        writer = new PrintWriter(stringWriter);
        response = new StrutsMockHttpServletResponse();
        response.setWriter(writer);
        request = new MockHttpServletRequest();
        stack = ActionContext.getContext().getValueStack();

        context = new ActionContext(stack.getContext());
        context.put(StrutsStatics.HTTP_RESPONSE, response);
        context.put(StrutsStatics.HTTP_REQUEST, request);
        context.put(StrutsStatics.SERVLET_CONTEXT, servletContext);

        ServletActionContext.setServletContext(servletContext);
        ServletActionContext.setRequest(request);
        ServletActionContext.setResponse(response);
        servletContext.setAttribute(FreemarkerManager.CONFIG_SERVLET_CONTEXT_KEY, null);

        invocation = new MockActionInvocation();
        invocation.setStack(stack);
        invocation.setInvocationContext(context);

        //get fm config to use it in mock servlet context
        FreemarkerManager freemarkerManager = container.getInstance(FreemarkerManager.class);

        freemarkerConfig = freemarkerManager.getConfiguration(ServletActionContext.getServletContext());
        freemarkerConfig.setTemplateExceptionHandler(TemplateExceptionHandler.RETHROW_HANDLER);
        freemarkerConfig.setServletContextForTemplateLoading(servletContext, null);
    }

    @Override
    public void setUp() throws Exception {
        super.setUp();

        servletContext = EasyMock.createNiceMock(ServletContext.class);
        EasyMock.expect(servletContext.getInitParameter("TemplatePath")).andReturn(null);
        EasyMock.expect(servletContext.getInitParameter("templatePath")).andReturn(null);

        EasyMock.expect(servletContext.getAttribute(FreemarkerManager.CONFIG_SERVLET_CONTEXT_KEY)).andReturn(freemarkerConfig).anyTimes();
    }

}
