/*-
 * ============LICENSE_START=======================================================
 * VID
 * ================================================================================
 * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
 * ================================================================================
 * Modifications Copyright 2019 Nokia
 * ================================================================================
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * ============LICENSE_END=========================================================
 */

package org.onap.vid.controller;

import static org.mockito.BDDMockito.given;
import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.get;
import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.content;
import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;

import com.fasterxml.jackson.databind.ObjectMapper;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableMap;
import org.apache.log4j.BasicConfigurator;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.mockito.Mock;
import org.mockito.junit.MockitoJUnitRunner;
import org.onap.vid.category.CategoryParameterOptionRep;
import org.onap.vid.category.CategoryParametersResponse;
import org.onap.vid.model.CategoryParameter.Family;
import org.onap.vid.services.CategoryParameterService;
import org.onap.vid.utils.SystemPropertiesWrapper;
import org.springframework.http.MediaType;
import org.springframework.test.web.servlet.MockMvc;
import org.springframework.test.web.servlet.setup.MockMvcBuilders;

@RunWith(MockitoJUnitRunner.class)
public class PropertyControllerTest {

    private static final String GET_PROPERTY = "/get_property/{name}/{defaultvalue}";
    private static final String CATEGORY_PARAMETER = "/category_parameter";

    private static final String ERROR_MSG = "Internal error occurred: ";
    private static final String FAMILY_NAME = "familyName";

    private PropertyController propertyController;
    private MockMvc mockMvc;
    private ObjectMapper objectMapper;

    @Mock
    private CategoryParameterService service;
    @Mock
    private SystemPropertiesWrapper systemPropertiesWrapper;

    @Before
    public void setUp() {
        propertyController = new PropertyController(service, systemPropertiesWrapper);
        BasicConfigurator.configure();
        mockMvc = MockMvcBuilders.standaloneSetup(propertyController).build();
        objectMapper = new ObjectMapper();
    }

    @Test
    public void shouldReturnInputJson_whenPropertyIsNotFound() throws Exception {
        String inputJson = "{key1: val1}";
        given(systemPropertiesWrapper.getOrDefault("name.1", inputJson)).willReturn(inputJson);

        mockMvc.perform(get(GET_PROPERTY, "name_1", inputJson)
            .contentType(MediaType.APPLICATION_JSON))
            .andExpect(status().isOk())
            .andExpect(content().json(inputJson));
    }

    @Test
    public void shouldReturnGivenJson_whenPropertyIsFound() throws Exception {
        String propertyJson = "{key1: val1}";
        String inputJson = "{key2: val2}";
        given(systemPropertiesWrapper.getOrDefault("name.1", inputJson)).willReturn(propertyJson);

        mockMvc.perform(get(GET_PROPERTY, "name_1", inputJson)
            .contentType(MediaType.APPLICATION_JSON))
            .andExpect(status().isOk())
            .andExpect(content().json(propertyJson));
    }

    @Test
    public void shouldReturnInternalServerError_whenExceptionIsThrownFromSystemProperties() throws Exception {
        String exceptionMessage = "Test exception message from system properties";
        String inputJson = "{key1: val1}";
        given(systemPropertiesWrapper.getOrDefault("name.1", inputJson)).willThrow(new RuntimeException(exceptionMessage));

        mockMvc.perform(get(GET_PROPERTY, "name_1", inputJson)
            .contentType(MediaType.APPLICATION_JSON))
            .andExpect(status().isInternalServerError())
            .andExpect(content().string(ERROR_MSG + exceptionMessage));
    }

    @Test
    public void shouldReturnResponse_whenResponseIsFound() throws Exception {

        CategoryParametersResponse categoryParametersResponse =
            new CategoryParametersResponse(
                ImmutableMap.of(
                    "key1", ImmutableList.of(
                        new CategoryParameterOptionRep("testId", "testName"))));

        given(service.getCategoryParameters(Family.PARAMETER_STANDARDIZATION)).willReturn(categoryParametersResponse);

        mockMvc.perform(get(CATEGORY_PARAMETER)
            .param(FAMILY_NAME, "PARAMETER_STANDARDIZATION")
            .contentType(MediaType.APPLICATION_JSON))
            .andExpect(status().isOk())
            .andExpect(content().json(objectMapper.writeValueAsString(categoryParametersResponse)));
    }

    @Test
    public void shouldReturnInternalServerError_whenExceptionIsThrownFromService() throws Exception {
        String exceptionMessage = "Test exception message from category parameter service";
        given(service.getCategoryParameters(Family.PARAMETER_STANDARDIZATION)).willThrow(new RuntimeException(
            exceptionMessage));

        mockMvc.perform(get(CATEGORY_PARAMETER)
            .param(FAMILY_NAME, "PARAMETER_STANDARDIZATION")
            .contentType(MediaType.APPLICATION_JSON))
            .andExpect(status().isInternalServerError())
            .andExpect(content().string(ERROR_MSG + exceptionMessage));
    }
}