/*
 * Copyright (C) 2008-2017, Juick
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

package com.juick.api.tests;

import com.fasterxml.jackson.core.type.TypeReference;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.juick.ExternalToken;
import com.juick.Message;
import com.juick.Tag;
import com.juick.User;
import com.juick.api.configuration.ApiAppConfiguration;
import com.juick.api.configuration.ApiSecurityConfig;
import com.juick.configuration.RepositoryConfiguration;
import com.juick.server.helpers.TagStats;
import com.juick.service.ImagesService;
import com.juick.service.MessagesService;
import com.juick.service.TagService;
import com.juick.service.UserService;
import com.juick.util.DateFormattersHolder;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.http.MediaType;
import org.springframework.security.test.web.servlet.setup.SecurityMockMvcConfigurers;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.AbstractJUnit4SpringContextTests;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
import org.springframework.test.context.web.WebAppConfiguration;
import org.springframework.test.web.servlet.MockMvc;
import org.springframework.test.web.servlet.MvcResult;
import org.springframework.test.web.servlet.setup.MockMvcBuilders;
import org.springframework.web.context.WebApplicationContext;
import org.springframework.web.util.UriComponents;
import org.springframework.web.util.UriComponentsBuilder;

import javax.inject.Inject;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
import java.util.Scanner;
import java.util.stream.IntStream;

import static org.hamcrest.MatcherAssert.assertThat;
import static org.hamcrest.Matchers.*;
import static org.springframework.security.test.web.servlet.request.SecurityMockMvcRequestPostProcessors.httpBasic;
import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.*;
import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.*;

/**
 * Created by vitalyster on 25.11.2016.
 */
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(classes = {ApiAppConfiguration.class, ApiSecurityConfig.class, RepositoryConfiguration.class})
@WebAppConfiguration
public class MessagesTests extends AbstractJUnit4SpringContextTests {

    private MockMvc mockMvc;
    @Inject
    private WebApplicationContext webApplicationContext;

    @Inject
    private MessagesService messagesService;
    @Inject
    private UserService userService;
    @Inject
    private TagService tagService;
    @Inject
    private ObjectMapper jsonMapper;
    @Inject
    private ImagesService imagesService;

    private static User ugnich, freefd, juick;
    static String ugnichName, ugnichPassword, freefdName, freefdPassword, juickName, juickPassword;
    static Message msg;
    static int juickTagId;

    private static boolean isSetUp = false;


    @Before
    public void setUp() {
        mockMvc = MockMvcBuilders.webAppContextSetup(webApplicationContext)
                .apply(SecurityMockMvcConfigurers.springSecurity())
                .dispatchOptions(true)
                .build();
        if (!isSetUp) {
            ugnichName = "ugnich";
            ugnichPassword = "MyPassw0rd!";
            freefdName = "freefd";
            freefdPassword = "MyPassw0rd!";
            juickName = "juick";
            juickPassword = "demo";
            int ugnichId = userService.createUser(ugnichName, ugnichPassword);
            ugnich = userService.getUserByUID(ugnichId).orElseThrow(IllegalStateException::new);
            int freefdId = userService.createUser(freefdName, freefdPassword);
            freefd = userService.getUserByUID(freefdId).orElseThrow(IllegalStateException::new);
            int juickId = userService.createUser(juickName, juickPassword);
            juick = userService.getUserByUID(juickId).orElseThrow(IllegalStateException::new);

            String msgText = "Привет, я - Угнич";

            int mid = messagesService.createMessage(ugnich.getUid(), msgText, "png", null);
            msg = messagesService.getMessage(mid);
            tagService.createTag("тест");
            juickTagId = tagService.createTag("juick");
            isSetUp = true;
        }
    }

    @Test
    public void testAllUnAuthorized() throws Exception {

        mockMvc.perform(get("/"))
                .andExpect(status().is4xxClientError());

        mockMvc.perform(get("/auth"))
                .andExpect(status().is4xxClientError());

        mockMvc.perform(get("/home"))
                .andExpect(status().is4xxClientError());

        mockMvc.perform(get("/messages/recommended"))
                .andExpect(status().is4xxClientError());

        mockMvc.perform(get("/messages/set_privacy"))
                .andExpect(status().is4xxClientError());
    }

    @Test
    public void homeTestWithMessages() throws Exception {
        mockMvc.perform(
                get("/home")
                        .with(httpBasic(ugnichName, ugnichPassword)))
                .andExpect(status().isOk())
                .andExpect(content().contentType(MediaType.APPLICATION_JSON_UTF8))
                .andExpect(jsonPath("$[-1].mid", is(msg.getMid())))
                .andExpect(jsonPath("$[-1].timestamp",
                        is(DateFormattersHolder.getMessageFormatterInstance().format(msg.getTimestamp()))))
                .andExpect(jsonPath("$[-1].body", is(msg.getText())))
                .andExpect(jsonPath("$[-1].attachment.url", is("https://i.juick.com/p/1.png")))
                .andExpect(jsonPath("$[-1].attachment.small.url", is("https://i.juick.com/photos-512/1.png")));
    }

    @Test
    public void homeTestWithMessagesAndRememberMe() throws Exception {
        String ugnichHash = userService.getHashByUID(ugnich.getUid());
        mockMvc.perform(
                get("/home")
                        .with(httpBasic(ugnichName, ugnichPassword)))
                .andExpect(status().isOk())
                .andReturn();

        mockMvc.perform(get("/home")
                .param("hash", ugnichHash))
                .andExpect(status().isOk());
    }

    @Test
    public void homeTestWithMessagesAndSimpleCors() throws Exception {
        mockMvc.perform(
                get("/home")
                        .with(httpBasic(ugnichName, ugnichPassword))
                        .header("Origin", "http://api.example.net"))
                .andExpect(status().isOk())
                .andExpect(header().string("Access-Control-Allow-Origin", "*"));
    }

    @Test
    public void homeTestWithPreflightCors() throws Exception {
        mockMvc.perform(
                options("/home")
                        .with(httpBasic(ugnichName, ugnichPassword))
                        .header("Origin", "http://api.example.net")
                        .header("Access-Control-Request-Method", "POST")
                        .header("Access-Control-Request-Headers", "X-PINGOTHER, Content-Type"))
                .andExpect(status().isOk())
                .andExpect(header().string("Access-Control-Allow-Origin", "*"))
                .andExpect(header().string("Access-Control-Allow-Methods", "POST,GET,PUT,OPTIONS,DELETE"))
                .andExpect(header().string("Access-Control-Allow-Headers", "X-PINGOTHER, Content-Type"));
    }

    @Test
    public void anonymousApis() throws Exception {


        mockMvc.perform(get("/messages"))
                .andExpect(status().isOk());

        mockMvc.perform(get("/users")
                .param("uname", "ugnich")
                .param("uname", "freefd"))
                .andExpect(status().isOk())
                .andExpect(content().contentType(MediaType.APPLICATION_JSON_UTF8))
                .andExpect(jsonPath("$", hasSize(2)));
    }

    @Test
    public void tags() throws Exception {
        Tag weather = tagService.getTag("weather", true);
        Tag yo = tagService.getTag("yo", true);
        messagesService.createMessage(ugnich.getUid(), "text", null, Arrays.asList(yo, weather));
        messagesService.createMessage(freefd.getUid(), "text2", null, Collections.singletonList(yo));
        MvcResult result = mockMvc.perform(get("/tags"))
                .andExpect(status().isOk())
                .andReturn();
        List<TagStats> tagsFromApi = jsonMapper.readValue(result.getResponse().getContentAsString(),
                new TypeReference<List<TagStats>>(){});
        TagStats yoStats = tagsFromApi.stream().filter(t -> t.getTag().getName().equals("yo")).findFirst().get();
        assertThat(yoStats.getUsageCount(), is(2));
        MvcResult result2 = mockMvc.perform(get("/tags")
                .param("user_id", String.valueOf(ugnich.getUid())))
                .andExpect(status().isOk())
                .andReturn();
        List<TagStats> ugnichTagsFromApi = jsonMapper.readValue(result2.getResponse().getContentAsString(),
                new TypeReference<List<TagStats>>(){});
        TagStats yoUgnichStats = ugnichTagsFromApi.stream().filter(t -> t.getTag().getName().equals("yo")).findFirst().get();
        assertThat(yoUgnichStats.getUsageCount(), is(1));
    }

    @Test
    public void postWithReferer() throws Exception {
        mockMvc.perform(post("/post")
                .param("body", "yo")
                .with(httpBasic(ugnichName, ugnichPassword)))
                .andExpect(status().isOk());
    }
    @Test
    public void threadWithEphemeralNumberShouldReturn404() throws Exception {
        mockMvc.perform(get("/thread").param("mid", "999999999")
        .with(httpBasic(ugnichName, ugnichPassword))).andExpect(status().is4xxClientError());
    }
    @Test
    public void performRequestsWithIssuedToken() throws Exception {
        String ugnichHash = userService.getHashByUID(ugnich.getUid());
        mockMvc.perform(get("/home")).andExpect(status().isUnauthorized());
        mockMvc.perform(get("/auth"))
                .andExpect(status().isUnauthorized());
        mockMvc.perform(get("/auth").with(httpBasic(ugnichName, "wrongpassword")))
                .andExpect(status().isUnauthorized());
        MvcResult result = mockMvc.perform(get("/auth").with(httpBasic(ugnichName, ugnichPassword)))
                .andExpect(status().isOk())
                .andReturn();
        String authHash = jsonMapper.readValue(result.getResponse().getContentAsString(), String.class);
        assertThat(authHash, equalTo(ugnichHash));
        mockMvc.perform(get("/home").param("hash", ugnichHash)).andExpect(status().isOk());
    }
    @Test
    public void registerForNotificationsTests() throws Exception {
        String token = "123456";
        ExternalToken registration = new ExternalToken(null, "apns", token, null);
        mockMvc.perform(put("/notifications").with(httpBasic(ugnichName, ugnichPassword))
                .contentType(MediaType.APPLICATION_JSON_UTF8)
                .content(jsonMapper.writeValueAsBytes(Collections.singletonList(registration))))
                .andExpect(status().isOk());
        MvcResult result = mockMvc.perform(get("/notifications")
                .param("uid", String.valueOf(ugnich.getUid()))
                .with(httpBasic(juickName, juickPassword)))
                .andExpect(status().isOk())
                .andReturn();
        List<User> user = jsonMapper.readValue(result.getResponse().getContentAsString(),
                new TypeReference<List<User>>() {
                });
        assertThat(user.get(0).getTokens().get(0).getToken(), equalTo(token));
    }
    @Test
    public void tg2juickLinks() {
        UriComponents uriComponents = UriComponentsBuilder.fromUriString("http://juick.com/123456#23").build();
        assertThat(uriComponents.getPath().substring(1), is("123456"));
        assertThat(uriComponents.getFragment(), is("23"));
    }
    @Test
    public void notificationsTokensTest() throws Exception {
        List<ExternalToken> tokens = Collections.singletonList(new ExternalToken(null, "gcm", "123456", null));
        mockMvc.perform(delete("/notifications").with(httpBasic(ugnichName, ugnichPassword))
        .contentType(MediaType.APPLICATION_JSON_UTF8)
        .content(jsonMapper.writeValueAsBytes(tokens))).andExpect(status().isForbidden());
        mockMvc.perform(delete("/notifications").with(httpBasic(juickName, juickPassword))
                .contentType(MediaType.APPLICATION_JSON_UTF8)
                .content(jsonMapper.writeValueAsBytes(tokens))).andExpect(status().isOk());
    }
    @Test
    public void topTest() throws Exception {
        int topmid = messagesService.createMessage(ugnich.getUid(), "top message", null, null);
        IntStream.rangeClosed(6, 12).forEach(i -> {
            messagesService.createReply(topmid, 0, i, "yo", null);
        });
        mockMvc.perform(get("/messages/top_candidates").with(httpBasic(juickName, juickPassword))
                .contentType(MediaType.APPLICATION_JSON_UTF8))
                .andExpect(status().isOk())
                .andExpect(jsonPath("$[0]", is(topmid)));
        Tag juickTag = tagService.getTag(juickTagId);
        assertThat(juickTag.TID, is(2));
        tagService.updateTags(topmid, Collections.singletonList(juickTag));
        mockMvc.perform(get("/messages/top_candidates").with(httpBasic(juickName, juickPassword))
                .contentType(MediaType.APPLICATION_JSON_UTF8))
                .andExpect(status().isOk())
                .andExpect(jsonPath("$", hasSize(0)));
    }
    @Test
    public void inReplyToScannerTest() {
        String header = "<123456.56@juick.com>";
        Scanner headerScanner = new Scanner(header).useDelimiter("\\.|@|<");
        int mid = Integer.parseInt(headerScanner.next());
        int rid = Integer.parseInt(headerScanner.next());
        assertThat(mid, equalTo(123456));
        assertThat(rid, equalTo(56));
    }
}