// Last edited on 2014-12-17 03:16:41 by stolfilocal

package tests;

import quack.User;
import quack.Message;
import quack.Contact;
import quack.TimeFormat;
import quack.Server;
import quack.HTML;

import quack.UserImpl;
import quack.MessageImpl;
import quack.ContactImpl;
import quack.ServerImpl;
import quack.HTMLImpl;
import quack.ServerImpl;

import java.util.List;

import java.io.PrintWriter;
import java.io.StringWriter;
import java.io.IOException;
import java.io.OutputStream;
import java.io.FileOutputStream;
import java.io.OutputStreamWriter;
import java.io.BufferedWriter;
import java.io.PrintWriter;
import java.io.Writer;

import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpServletRequest;

import org.mockito.Mockito;

public class HTMLTest extends Mockito {

    public static void main(String[] args) {
        System.err.println("Greetings Globe!");

        Server server = new ServerImpl().initialize("", null, "", null);

        HTML html = new HTMLImpl().initialize(server);

        int nUser = 10;
        int nMessage = 100;
        int nContact = 50;

        User user[] = new User[nUser];
        Message message[] = new Message[nMessage];
        Contact contact[] = new Contact[nContact];

        createUsersAndStuff(server, user, message, contact);

        String pageName = args[0];
        
        try {
            if (pageName.equals("MessageList")) {
                test_MessageListPage(pageName, html, user, message, contact);
            } else {
                System.err.println("Unknown page name \"" + pageName + "\"");
            }
        } catch (IOException e) {
            System.err.println("Gosh! Ghastly grievance!");
        }
    }
    
    static void createUsersAndStuff(Server server, User user[], Message message[], Contact contact[]) {
        int nUser = user.length;
        int nMessage = message.length;
        int nContact = contact.length;
        
        // Create some users, with no messages or contacts:
        int dClock = (nUser + nMessage + nContact); /* Shift in clock to ensure all creation timestamps are different. */
        for (int i = 0; i < nUser; i++) { 
            String loginName = String.format("user%03d", i);
            String email = loginName + "@foo.bar.br";
            String fullName = "João A" + String.format("%03x", i) + " da Silva";
            String password = String.format("%03x", i) + String.format("%03d", i);
            long creationTime = server.currentTime() - dClock; dClock++;
            long dbIndex = 1000 + i;
            user[i] = new UserImpl().initialize(loginName, email, fullName, password, creationTime, dbIndex);
            assert(user[i] != null);
        }
        // Create some messages for them:
        for (int i = 0; i < nMessage; i++) { 
            User poster = user[(((i + 5)*(i + 37))/ 3) % nUser];
            long dbIndex = 2000 + i;
            long postedTime = server.currentTime() - dClock; dClock++;
            message[i] = new MessageImpl();
            if ((i == 0) || ((i % 3) != 0)) {
                // Mensagem original:
                String body = "Quack " + String.format("%d", i) + " quack!";
                message[i].initialize(poster, body, dbIndex, postedTime);
            } else {
                // Repostagem:
                assert(i > 0);
                Message parent = message[(((i + 23)*(i + 7))/ 5) % i];
                message[i].initialize(poster, parent, dbIndex, postedTime);
            }
            assert(message[i] != null);
            poster.addMessage(message[i]);
        }
        // Create some contacts:
        String stName[] = new String[3];
        stName[0] = "Inactive";
        stName[1] = "Follow";
        stName[2] = "Block";
        int ic = 0; // Contact index.
        for (int ixs = 0; ixs < nUser; ixs++) {
            int sourceIx = ixs;  // Index of source user.
            int nc = (nContact - ic)/(nUser - ixs);  // Number of contacts of this user. 
            assert(nc < nUser);
            int dt = (nUser - 1)/nc; // Increment in {targetIx}.
            for (int ixt = 0; ixt < nc; ixt++) { 
                int targetIx = (sourceIx + 1 + dt*ixt) % nUser;
                assert (targetIx != sourceIx);
                User source = user[sourceIx];
                User target = user[targetIx];
                String status = stName[(((ic + 41)*(ic + 37))/ 12) % 3];
                long lastModTime = server.currentTime() - dClock; dClock++;
                contact[ic] = new ContactImpl().initialize(source, target, status, lastModTime);
                assert(contact[ic] != null);
                source.addDirectContact(contact[ic]);
                target.addReverseContact(contact[ic]);
                ic++;
            }
        }
    }
    
    static void test_MessageListPage
        ( String pageName,
          HTML html,
          User user[],
          Message message[],
          Contact contact[]
        ) throws IOException {
        
        String fileName = "out/" + pageName + ".html"; 
        System.err.println("writing " + fileName + " ...");
        
        
        // Create a mock {request} that asks for the timeline of some user:
        HttpServletRequest request = mock(HttpServletRequest.class); 
        
        // Create a mock {response} that writes to the file {fileName}:
        PrintWriter wr = new PrintWriter(fileName, "UTF-8");      
        HttpServletResponse response = Mockito.mock(HttpServletResponse.class);
        Mockito.when(response.getWriter()).thenReturn(wr);
        
        // Call {HTMP.writeMessageList}: 
        User requestor = user[0];
        User subject = user[1];
        String title = "Mensagens Recebidas";
        List<Message> list = subject.getPostedMessages();
        String requestMoreCmd = "ShowReceivedMessages";
        int start = 3;
        int n = 10;
        int maxN = 50;
        html.listPage(response, requestor, "Test Message list", list, start, n, requestMoreCmd, subject, maxN);
        
        wr.close();
        System.err.println("Gosh!");
    }
    

    // void testInvalidUser() throws Exception {
                
    //     // cria requests e responses falsas
    //     HttpServletRequest request = mock(HttpServletRequest.class); 

    //     when(request.getParameter("username")).thenReturn("notRealUser");
    //     when(request.getParameter("password")).thenReturn("password");
        
    //     StringWriter writer = new StringWriter();
    //     // cria um writer falso para a resposta
    //     when(response.getWriter()).thenReturn(new PrintWriter(writer));
    //     LoginServlet loginServlet = new LoginServlet();
       
    //     loginServlet.testDoPost(request, response);
    //     // assegura que o usuario recebeu a mensagem de falha
    //     assert(writer.toString().contains("Falha ao realizar login"));
    // }
        
    // public void testRegisterUser() throws Exception {

    //     // cria requests e responses falsas
    //     HttpServletRequest request = mock(HttpServletRequest.class);       
    //     HttpServletResponse response = mock(HttpServletResponse.class);
    //     when(request.getParameter("username")).thenReturn("testUser");
    //     when(request.getParameter("password")).thenReturn("testPassword");

    //     StringWriter writer = new StringWriter();
    //     // cria um writer falso para a resposta
    //     when(response.getWriter()).thenReturn(new PrintWriter(writer));
    //     RegistrationServlet cadastroServlet = new RegistrationServlet();
    //     cadastroServlet.testDoGet(request, response);
        
    //     verify(response, times(1)).sendRedirect("/Quack/loginpage.jsp");
       
    // }
        
}