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package com.sun.jersey.impl;

import java.net.URI;


import junit.framework.TestCase;

import com.sun.jersey.api.client.Client;
import com.sun.jersey.api.client.filter.ClientFilter;
import com.sun.jersey.api.client.ClientRequest;
import com.sun.jersey.api.client.ClientResponse;
import com.sun.jersey.api.client.WebResource;
import com.sun.jersey.api.client.config.ClientConfig;
import com.sun.jersey.api.core.DefaultResourceConfig;
import com.sun.jersey.api.core.ResourceConfig;
import com.sun.jersey.core.spi.component.ioc.IoCComponentProviderFactory;
import com.sun.jersey.server.impl.application.WebApplicationImpl;
import com.sun.jersey.spi.container.ContainerListener;
import com.sun.jersey.spi.container.ContainerNotifier;
import com.sun.jersey.spi.container.WebApplication;

/**
 *
 * @author Paul.Sandoz@Sun.Com
 */
public abstract class AbstractResourceTester extends TestCase implements ContainerListener {
    protected static final URI BASE_URI = URI.create("test:/base/");

    protected WebApplication w;
    
    protected AbstractResourceTester(String testName) {
        super(testName);
    }
    
    protected void initiateWebApplication(IoCComponentProviderFactory provider, ResourceConfig c) {
        w = createWebApplication(c, provider);
    }

    protected void initiateWebApplication(IoCComponentProviderFactory provider, Class... classes) {
        w = createWebApplication(provider, classes);
    }
    
    protected void initiateWebApplication(Class... classes) {
        w = createWebApplication(classes);
    }
    
    protected void initiateWebApplication(ResourceConfig c) {
        w = createWebApplication(c);
    }
    
    private WebApplication createWebApplication(Class... classes) {
        return createWebApplication(null, classes);
    }
    
    private WebApplication createWebApplication(IoCComponentProviderFactory provider, Class... classes) {
        ResourceConfig rc = new DefaultResourceConfig(classes);
        
        return createWebApplication(rc, provider);
    }
    
    private WebApplication createWebApplication(ResourceConfig c) {
        return createWebApplication(c, null);
    }
    
    private WebApplication createWebApplication(ResourceConfig c, IoCComponentProviderFactory provider) {
        Object o = c.getProperties().get(
                ResourceConfig.PROPERTY_CONTAINER_NOTIFIER);
        if (o instanceof ContainerNotifier) {
            ContainerNotifier crf = (ContainerNotifier)o;
            crf.addListener(this);
        }

        WebApplicationImpl a = new WebApplicationImpl();
        initiate(c, a);
        a.initiate(c, provider);
        return a;
    }

    protected void initiate(ResourceConfig c, WebApplication a) {}
    
    protected WebResource resource(String relativeUri) {
        return resource(relativeUri, true);
    }
    
    protected WebResource resource(String relativeUri, ClientConfig clientConfig) {
        return resource(relativeUri, true, clientConfig);
    }
    
    protected WebResource resource(String relativeUri, boolean checkStatus) {
        return resource(relativeUri, checkStatus, null);        
    }
    
    protected WebResource resource(String relativeUri, boolean checkStatus, 
            ClientConfig clientConfig) {
        Client c = (clientConfig == null) 
            ? new Client(new JerseyTestResourceClientHandler(BASE_URI, w))
            : new Client(new JerseyTestResourceClientHandler(BASE_URI, w), clientConfig);

        if (checkStatus) {
            c.addFilter(new ClientFilter() {
                public ClientResponse handle(ClientRequest ro) {
                    ClientResponse r = getNext().handle(ro);
                    assertTrue("Status: " + r.getStatus(), r.getStatus() < 300);
                    return r;
                }
            });
        }
        WebResource r = c.resource(createCompleteUri(BASE_URI, relativeUri));
        
        return r;
    }

    protected interface Closure {
        void f();
    }

    protected <T extends RuntimeException> T catches(Closure c, Class<T> rex) {
        T t = null;
        try {
            c.f();
        } catch(RuntimeException ex) {
            ex.printStackTrace();
            assertTrue(ex.getClass().getName() + " is not assignable to runtime exception " + rex.getName(),
                    ex.getClass().isAssignableFrom(rex));
            t = rex.cast(ex);
        }
        assertNotNull("No exception was caught of class " + rex.getName(), t);
        return t;
    }

    private URI createCompleteUri(URI baseUri, String relativeUri) {
        if (relativeUri.startsWith("/"))
            relativeUri = relativeUri.substring(1);
        
        return URI.create(baseUri.toString() + relativeUri);
    }

    // ContainerListener

    public void onReload() {
        w = w.clone();
    }
}