package com.plannaplan.controllers;

import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.http.MediaType;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringRunner;
import org.springframework.test.web.servlet.MockMvc;
import org.springframework.test.web.servlet.setup.MockMvcBuilders;

import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;

import java.nio.charset.Charset;

import com.plannaplan.entities.User;
import com.plannaplan.services.UserService;
import com.plannaplan.types.UserRoles;

import static org.junit.Assert.assertTrue;
import static org.springframework.security.test.web.servlet.setup.SecurityMockMvcConfigurers.*;
import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.get;
import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.post;

@RunWith(SpringRunner.class)
@SpringBootTest
@ContextConfiguration
public class CommisionControllerTest extends AbstractControllerTest {

    @Autowired
    private UserService service;

    private static User user;
    private static User admin;
    private static User otherUser;
    private static User asker;
    private static User otherAsker;

    private static final String TEST_COMMISIONS_STUDENT_EMAIL = "commisions.student@notexisting.domain";
    private static final String TEST_COMMISIONS_ADMIN_EMAIL = "commisions.admin@notexisiting,domain";
    private static final String TEST_COMMISIONS_OTHER_STUDENT_EMAIL = "commisions.student2@notexisting.domain";
    private static final String TEST_COMMISIONS_DEANERY_EMAIL = "commisions.deanery@notexisting.domain";
    private static final String TEST_COMMISIONS_OTHER_DEANERY_EMAIL = "commisions.deanery2@notexisting.domain";

    private static final String ADD_COMMISION_ENDPOINT = "/api/v1/commisions/user";
    private static final String GET_COMMISIONS_ENDPOINT = "/api/v1/commisions/user";
    private static final String GET_SOMEONE_COMMISIONS_ENDPOINT = "/api/v1/commisions/user";
    private static final String GET_USER_SCHEDULE_ENDPOINT = "/api/v1/commisions/user/schedule";
    private static final String GET_ASSIGNMENTS_ENDPOINT = "/api/v1/commisions/user/assignments";

    private static final String EXPORT_DATA = "/api/v1/commisions/export/csv";

    private static final MediaType APPLICATION_JSON_UTF8 = new MediaType(MediaType.APPLICATION_JSON.getType(),
            MediaType.APPLICATION_JSON.getSubtype(), Charset.forName("utf8"));

    @Test
    public void shouldReturn4xxAddingCommision() throws Exception {
        MockMvc mockMvc = MockMvcBuilders.webAppContextSetup(webApplicationContext).apply(springSecurity()).build();
        mockMvc.perform(post(ADD_COMMISION_ENDPOINT)).andExpect(status().is4xxClientError());

    }

    @Test
    public void shouldFailedAddingCommisionDueToNoArgs() throws Exception {
        this.checkUsers();
        final User user = this.service.checkForUser(TEST_COMMISIONS_STUDENT_EMAIL, null);
        final String token = this.service.login(user).getToken();

        MockMvc mockMvc = MockMvcBuilders.webAppContextSetup(webApplicationContext).apply(springSecurity()).build();
        mockMvc.perform(post(ADD_COMMISION_ENDPOINT).header("Authorization", "Bearer " + token))
                .andExpect(status().is4xxClientError());
    }

    @Test
    public void shouldFailAddingCommisionDueToWrongTour() throws Exception {
        this.checkUsers();
        final User user = this.service.checkForUser(TEST_COMMISIONS_STUDENT_EMAIL, null);
        final String token = this.service.login(user).getToken();

        MockMvc mockMvc = MockMvcBuilders.webAppContextSetup(webApplicationContext).apply(springSecurity()).build();
        mockMvc.perform(post(ADD_COMMISION_ENDPOINT).header("Authorization", "Bearer " + token)
                .contentType(APPLICATION_JSON_UTF8).content("[]")).andExpect(status().is4xxClientError());
    }

    @Test
    public void shouldReturn4xxGettingAllCommisions() throws Exception {
        MockMvc mockMvc = MockMvcBuilders.webAppContextSetup(webApplicationContext).apply(springSecurity()).build();
        mockMvc.perform(get(GET_COMMISIONS_ENDPOINT)).andExpect(status().is4xxClientError());
    }

    @Test
    public void shouldReturnOkGettingAllCommisions() throws Exception {
        this.checkUsers();
        final User user = this.service.checkForUser(TEST_COMMISIONS_STUDENT_EMAIL, null);
        final String token = this.service.login(user).getToken();

        MockMvc mockMvc = MockMvcBuilders.webAppContextSetup(webApplicationContext).apply(springSecurity()).build();
        mockMvc.perform(get(GET_COMMISIONS_ENDPOINT).header("Authorization", "Bearer " + token))
                .andExpect(status().isOk());
    }

    @Test
    public void shouldFailAddingCommisionWithSelfIdPrividedDueToWrongTour() throws Exception {
        this.checkUsers();

        final User user = this.service.checkForUser(TEST_COMMISIONS_STUDENT_EMAIL, null);
        final String token = this.service.login(user).getToken();

        MockMvc mockMvc = MockMvcBuilders.webAppContextSetup(webApplicationContext).apply(springSecurity()).build();
        mockMvc.perform(post(ADD_COMMISION_ENDPOINT + "/" + CommisionControllerTest.user.getId().toString())
                .header("Authorization", "Bearer " + token).contentType(APPLICATION_JSON_UTF8).content("[]"))
                .andExpect(status().is4xxClientError());
    }

    @Test
    public void shouldFailCommisionWithSomeoneIdPrividedAsStudent() throws Exception {
        this.checkUsers();

        final User user = this.service.checkForUser(TEST_COMMISIONS_STUDENT_EMAIL, null);
        final String token = this.service.login(user).getToken();

        MockMvc mockMvc = MockMvcBuilders.webAppContextSetup(webApplicationContext).apply(springSecurity()).build();
        mockMvc.perform(post(ADD_COMMISION_ENDPOINT + "/" + CommisionControllerTest.otherUser.getId().toString())
                .header("Authorization", "Bearer " + token).contentType(APPLICATION_JSON_UTF8).content("[]"))
                .andExpect(status().is4xxClientError());
    }

    @Test
    public void shouldFailCommisionAsDeanaryWithNoId() throws Exception {
        this.checkUsers();
        final User user = this.service.checkForUser(TEST_COMMISIONS_DEANERY_EMAIL, null);
        final String token = this.service.login(user).getToken();

        MockMvc mockMvc = MockMvcBuilders.webAppContextSetup(webApplicationContext).apply(springSecurity()).build();
        mockMvc.perform(post(ADD_COMMISION_ENDPOINT).header("Authorization", "Bearer " + token)
                .contentType(APPLICATION_JSON_UTF8).content("[]")).andExpect(status().is4xxClientError());
    }

    @Test
    public void shouldFailCommisionWithSelfIdPrividedAsDeanary() throws Exception {
        final User user = this.service.checkForUser(TEST_COMMISIONS_DEANERY_EMAIL, null);
        final String token = this.service.login(user).getToken();

        MockMvc mockMvc = MockMvcBuilders.webAppContextSetup(webApplicationContext).apply(springSecurity()).build();
        mockMvc.perform(post(ADD_COMMISION_ENDPOINT + "/" + CommisionControllerTest.asker.getId().toString())
                .header("Authorization", "Bearer " + token).contentType(APPLICATION_JSON_UTF8).content("[]"))
                .andExpect(status().is4xxClientError());
    }

    @Test
    public void shouldAddCommisionWithSomeoneIdPrividedAsDeanary() throws Exception {
        this.checkUsers();

        final User user = this.service.checkForUser(TEST_COMMISIONS_DEANERY_EMAIL, null);
        final String token = this.service.login(user).getToken();

        MockMvc mockMvc = MockMvcBuilders.webAppContextSetup(webApplicationContext).apply(springSecurity()).build();
        mockMvc.perform(post(ADD_COMMISION_ENDPOINT + "/" + CommisionControllerTest.otherUser.getId().toString())
                .header("Authorization", "Bearer " + token).contentType(APPLICATION_JSON_UTF8).content("[]"))
                .andExpect(status().isOk());
    }

    @Test
    public void shouldFailCommisionWithOtherDeanaryIdPrividedAsDeanary() throws Exception {
        this.checkUsers();

        final User user = this.service.checkForUser(TEST_COMMISIONS_DEANERY_EMAIL, null);
        final String token = this.service.login(user).getToken();

        MockMvc mockMvc = MockMvcBuilders.webAppContextSetup(webApplicationContext).apply(springSecurity()).build();
        mockMvc.perform(post(ADD_COMMISION_ENDPOINT + "/" + CommisionControllerTest.otherAsker.getId().toString())
                .header("Authorization", "Bearer " + token).contentType(APPLICATION_JSON_UTF8).content("[]"))
                .andExpect(status().is4xxClientError());
    }

    @Test
    public void shouldGetStudentCommisionsListByDeanary() throws Exception {
        this.checkUsers();

        final User user = this.service.checkForUser(TEST_COMMISIONS_DEANERY_EMAIL, null);
        final String token = this.service.login(user).getToken();

        MockMvc mockMvc = MockMvcBuilders.webAppContextSetup(webApplicationContext).apply(springSecurity()).build();
        mockMvc.perform(get(GET_SOMEONE_COMMISIONS_ENDPOINT + "/" + CommisionControllerTest.user.getId().toString())
                .header("Authorization", "Bearer " + token)).andExpect(status().isOk());
    }

    @Test
    public void shouldFailStudentCommisionsListByOtherStudent() throws Exception {
        this.checkUsers();

        final User user = this.service.checkForUser(TEST_COMMISIONS_STUDENT_EMAIL, null);
        final String token = this.service.login(user).getToken();

        MockMvc mockMvc = MockMvcBuilders.webAppContextSetup(webApplicationContext).apply(springSecurity()).build();
        mockMvc.perform(get(GET_SOMEONE_COMMISIONS_ENDPOINT + "/" + CommisionControllerTest.user.getId().toString())
                .header("Authorization", "Bearer " + token)).andExpect(status().is4xxClientError());
    }

    @Test
    public void shouldReturn4xxInScheduleEndpoint() throws Exception {
        MockMvc mockMvc = MockMvcBuilders.webAppContextSetup(webApplicationContext).apply(springSecurity()).build();
        mockMvc.perform(get(GET_USER_SCHEDULE_ENDPOINT)).andExpect(status().is4xxClientError());
    }

    @Test
    public void shouldReturnOkInScheduleEdnpoint() throws Exception {
        final User user = this.service.checkForUser(TEST_COMMISIONS_STUDENT_EMAIL, null);
        final String token = this.service.login(user).getToken();

        MockMvc mockMvc = MockMvcBuilders.webAppContextSetup(webApplicationContext).apply(springSecurity()).build();
        mockMvc.perform(get(GET_USER_SCHEDULE_ENDPOINT).header("Authorization", "Bearer " + token))
                .andExpect(status().isOk());
    }

    @Test
    public void shouldReturnOkInScheduleEdnpointByDeanery() throws Exception {
        this.checkUsers();
        final User user = this.service.checkForUser(TEST_COMMISIONS_DEANERY_EMAIL, null);
        final User student = this.service.checkForUser(TEST_COMMISIONS_STUDENT_EMAIL, null);
        final String token = this.service.login(user).getToken();

        MockMvc mockMvc = MockMvcBuilders.webAppContextSetup(webApplicationContext).apply(springSecurity()).build();
        mockMvc.perform(get(GET_COMMISIONS_ENDPOINT + "/" + student.getId() + "/schedule").header("Authorization",
                "Bearer " + token)).andExpect(status().isOk());
    }

    @Test
    public void shouldFailInScheduleEdnpointByOtherStudent() throws Exception {
        this.checkUsers();
        final User student = this.service.checkForUser(TEST_COMMISIONS_STUDENT_EMAIL, null);
        final User otherStudent = this.service.checkForUser(TEST_COMMISIONS_OTHER_STUDENT_EMAIL, null);
        final String token = this.service.login(student).getToken();

        MockMvc mockMvc = MockMvcBuilders.webAppContextSetup(webApplicationContext).apply(springSecurity()).build();
        mockMvc.perform(get(GET_COMMISIONS_ENDPOINT + "/" + otherStudent.getId() + "/schedule").header("Authorization",
                "Bearer " + token)).andExpect(status().is4xxClientError());
    }

    @Test
    public void shouldFailInScheduleEdnpointByDeaneryDeaneryRelation() throws Exception {
        this.checkUsers();
        final User deanery = this.service.checkForUser(TEST_COMMISIONS_DEANERY_EMAIL, null);
        final User otherDeanery = this.service.checkForUser(TEST_COMMISIONS_OTHER_DEANERY_EMAIL, null);
        final String token = this.service.login(deanery).getToken();

        MockMvc mockMvc = MockMvcBuilders.webAppContextSetup(webApplicationContext).apply(springSecurity()).build();
        mockMvc.perform(get(GET_COMMISIONS_ENDPOINT + "/" + otherDeanery.getId() + "/schedule").header("Authorization",
                "Bearer " + token)).andExpect(status().is4xxClientError());
    }

    private void checkUsers() {
        if (CommisionControllerTest.user == null) {
            CommisionControllerTest.user = new User(null, null, TEST_COMMISIONS_STUDENT_EMAIL, UserRoles.STUDENT);
            this.service.save(user);
        }
        if (CommisionControllerTest.otherUser == null) {
            CommisionControllerTest.otherUser = new User(null, null, TEST_COMMISIONS_OTHER_STUDENT_EMAIL,
                    UserRoles.STUDENT);
            this.service.save(otherUser);
        }
        if (CommisionControllerTest.admin == null) {
            CommisionControllerTest.admin = new User(null, null, TEST_COMMISIONS_ADMIN_EMAIL, UserRoles.ADMIN);
            this.service.save(admin);
        }
        if (CommisionControllerTest.asker == null) {
            CommisionControllerTest.asker = new User(null, null, TEST_COMMISIONS_DEANERY_EMAIL, UserRoles.DEANERY);
            this.service.save(asker);
        }
        if (CommisionControllerTest.otherAsker == null) {
            CommisionControllerTest.otherAsker = new User(null, null, TEST_COMMISIONS_OTHER_DEANERY_EMAIL,
                    UserRoles.DEANERY);
            this.service.save(otherAsker);
        }
    }

    @Test
    public void shouldExportData() throws Exception {
        this.checkUsers();
        final User admin = this.service.checkForUser(TEST_COMMISIONS_ADMIN_EMAIL, null);
        final String token = this.service.login(admin).getToken();

        MockMvc mockMvc = MockMvcBuilders.webAppContextSetup(webApplicationContext).apply(springSecurity()).build();
        mockMvc.perform(get(EXPORT_DATA).header("Authorization", "Bearer " + token)).andExpect(status().isOk());
    }

    @Test
    public void shouldNotExportDataDueToWrongPermision() throws Exception {
        this.checkUsers();
        final User student = this.service.checkForUser(TEST_COMMISIONS_STUDENT_EMAIL, null);
        final String token = this.service.login(student).getToken();

        MockMvc mockMvc = MockMvcBuilders.webAppContextSetup(webApplicationContext).apply(springSecurity()).build();
        mockMvc.perform(get(EXPORT_DATA).header("Authorization", "Bearer " + token))
                .andExpect(status().is4xxClientError());
    }

    @Test
    public void shouldExportDataBeCsvFile() throws Exception {
        this.checkUsers();
        final User admin = this.service.checkForUser(TEST_COMMISIONS_ADMIN_EMAIL, null);
        final String token = this.service.login(admin).getToken();

        MockMvc mockMvc = MockMvcBuilders.webAppContextSetup(webApplicationContext).apply(springSecurity()).build();

        assertTrue(
                mockMvc.perform(get(EXPORT_DATA).header("Authorization", "Bearer " + token)).andExpect(status().isOk())
                        .andReturn().getResponse().getContentAsString().contains("user_id, zaj_cykl_id, gr_nr"));
    }

    @Test
    public void shouldRetrunOkForAssignmentEnpoint() throws Exception {
        this.checkUsers();
        final User admin = this.service.checkForUser(TEST_COMMISIONS_STUDENT_EMAIL, null);
        final String token = this.service.login(admin).getToken();

        MockMvc mockMvc = MockMvcBuilders.webAppContextSetup(webApplicationContext).apply(springSecurity()).build();

        mockMvc.perform(get(GET_ASSIGNMENTS_ENDPOINT).header("Authorization", "Bearer " + token))
                .andExpect(status().isOk());
    }
}