package com.dalab.autolabel.controller;

import static org.mockito.ArgumentMatchers.*;
import static org.mockito.Mockito.*;
import static org.springframework.security.test.web.servlet.request.SecurityMockMvcRequestPostProcessors.*;
import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.*;
import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.*;

import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.autoconfigure.web.servlet.WebMvcTest;
import org.springframework.boot.test.mock.mockito.MockBean;
import org.springframework.http.MediaType;
import org.springframework.security.test.context.support.WithMockUser;
import org.springframework.test.web.servlet.MockMvc;

import com.dalab.autolabel.client.rest.dto.MLConfigRequest;
import com.dalab.autolabel.service.IMLConfigService;
import com.fasterxml.jackson.databind.ObjectMapper;

@WebMvcTest(LabelingConfigController.class)
class LabelingConfigControllerTest {

    @Autowired
    private MockMvc mockMvc;

    @MockBean
    private IMLConfigService mlConfigService;

    @Autowired
    private ObjectMapper objectMapper;

    private MLConfigRequest mlConfigRequest;

    @BeforeEach
    void setUp() {
        mlConfigRequest = MLConfigRequest.builder()
                .providerType("TEST_PROVIDER")
                .modelName("test-model")
                .baseUrl("http://localhost/test")
                .apiKey("test-key")
                .build();
    }

    @Test
    @WithMockUser(authorities = "ROLE_ADMIN")
    void updateMlConfiguration_AdminRole_ShouldSucceed() throws Exception {
        doNothing().when(mlConfigService).updateMlConfig(any(MLConfigRequest.class));

        mockMvc.perform(put("/api/v1/labeling/config/ml")
                        .with(csrf()) // Add CSRF token for PUT requests if CSRF is enabled
                        .contentType(MediaType.APPLICATION_JSON)
                        .content(objectMapper.writeValueAsString(mlConfigRequest)))
                .andExpect(status().isOk());
    }

    @Test
    @WithMockUser(authorities = "ROLE_USER") // Non-admin role
    void updateMlConfiguration_UserRole_ShouldBeForbidden() throws Exception {
        mockMvc.perform(put("/api/v1/labeling/config/ml")
                        .with(csrf())
                        .contentType(MediaType.APPLICATION_JSON)
                        .content(objectMapper.writeValueAsString(mlConfigRequest)))
                .andExpect(status().isForbidden());
    }

    @Test
    @WithMockUser(authorities = "ROLE_ADMIN")
    void getMlConfiguration_AdminRole_ShouldReturnConfig() throws Exception {
        when(mlConfigService.getMlConfig()).thenReturn(mlConfigRequest);

        mockMvc.perform(get("/api/v1/labeling/config/ml"))
                .andExpect(status().isOk())
                .andExpect(jsonPath("$.providerType").value("TEST_PROVIDER"))
                .andExpect(jsonPath("$.modelName").value("test-model"));
    }

    @Test
    @WithMockUser(authorities = "ROLE_ADMIN")
    void getMlConfiguration_AdminRole_NoConfigFound_ShouldReturnNotFound() throws Exception {
        when(mlConfigService.getMlConfig()).thenReturn(null);

        mockMvc.perform(get("/api/v1/labeling/config/ml"))
                .andExpect(status().isNotFound());
    }
    
    @Test
    @WithMockUser(authorities = "ROLE_USER") // Non-admin role
    void getMlConfiguration_UserRole_ShouldBeForbidden() throws Exception {
        mockMvc.perform(get("/api/v1/labeling/config/ml"))
                .andExpect(status().isForbidden());
    }
}