package com.dalab.discovery.client.rest;

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.MockMvcResultHandlers.*;
import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.*;

import java.util.HashMap;
import java.util.List;
import java.util.Optional;
import java.util.UUID;
import java.util.concurrent.CompletableFuture;

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.jdbc.AutoConfigureTestDatabase;
import org.springframework.boot.test.autoconfigure.web.servlet.AutoConfigureMockMvc;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.boot.test.mock.mockito.MockBean;
import org.springframework.context.annotation.Import;
import org.springframework.http.MediaType;
import org.springframework.security.test.context.support.WithMockUser;
import org.springframework.test.context.ActiveProfiles;
import org.springframework.test.web.servlet.MockMvc;
import org.springframework.web.context.WebApplicationContext;

import com.dalab.discovery.client.rest.dto.DiscoveryScanDetail;
import com.dalab.discovery.client.rest.dto.DiscoveryScanRequest;
import com.dalab.discovery.client.rest.dto.DiscoveryScanSummary;
import com.dalab.discovery.common.model.DiscoveryJob;
import com.dalab.discovery.common.model.enums.CloudProvider;
import com.dalab.discovery.job.JobStatus;
import com.dalab.discovery.job.JobType;
import com.dalab.discovery.job.config.JobConfiguration;
import com.dalab.discovery.job.service.IDiscoveryJobService;
import com.dalab.discovery.mapper.DiscoveryScanApiMapper;
import com.dalab.discovery.sd.config.TestDatabaseConfiguration;
import com.fasterxml.jackson.databind.ObjectMapper;

@SpringBootTest(
    classes = { com.dalab.discovery.application.DADiscoveryAgent.class },
    webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT,
    properties = {
        "spring.autoconfigure.exclude=com.google.cloud.spring.autoconfigure.secretmanager.GcpSecretManagerAutoConfiguration,com.google.cloud.spring.autoconfigure.core.GcpAutoConfiguration"
    }
)
@AutoConfigureMockMvc
@AutoConfigureTestDatabase(replace = AutoConfigureTestDatabase.Replace.ANY)
@WithMockUser(roles = { "ADMIN", "USER" })
@ActiveProfiles("test")
@Import({TestWebSecurityConfiguration.class, TestDatabaseConfiguration.class})
class DiscoveryJobControllerTest {

    @Autowired
    private MockMvc mockMvc;

    @MockBean
    private IDiscoveryJobService jobService;
    @MockBean
    private DiscoveryScanApiMapper scanMapper;

    @Autowired
    private ObjectMapper objectMapper;

    private DiscoveryJob sampleJob;
    private DiscoveryScanRequest scanRequest;

    @BeforeEach
    void setUp(WebApplicationContext context) {
        UUID jobId = UUID.randomUUID();
        sampleJob = new DiscoveryJob();
        sampleJob.setJobId(jobId);
        sampleJob.setJobName("Test Scan Job");
        sampleJob.setStatus(JobStatus.PENDING);
        sampleJob.setCloudProvider(CloudProvider.GCP);
        sampleJob.setAccountId("test-account");
        sampleJob.setJobType(JobType.RESOURCE_CRAWLER);
        sampleJob.setParameters(new HashMap<>());

        scanRequest = new DiscoveryScanRequest();
        scanRequest.setScanName("My GCP Scan");
        scanRequest.setCloudConnectionId("gcp-conn-123");
        scanRequest.setScanType(DiscoveryScanRequest.ScanType.FULL);
        
        DiscoveryScanRequest.Scope scope = new DiscoveryScanRequest.Scope();
        DiscoveryScanRequest.GcpScope gcpScope = new DiscoveryScanRequest.GcpScope();
        gcpScope.setProjectIds(List.of("gcp-project-1"));
        scope.setGcp(gcpScope);
        scanRequest.setScope(scope);
    }

    @Test
    @WithMockUser(authorities = "ROLE_DATA_STEWARD")
    void triggerScan_AsDataSteward_ShouldSucceed() throws Exception {
        when(jobService.createJob(any(JobType.class), anyString(), any(CloudProvider.class), anyString())).thenReturn(sampleJob);
        when(jobService.saveJob(any(DiscoveryJob.class))).thenReturn(sampleJob);
        when(jobService.executeJob(any(DiscoveryJob.class))).thenReturn(CompletableFuture.completedFuture(null));

        JobConfiguration mockJobConfiguration = mock(JobConfiguration.class);
        when(jobService.configureJob(any(DiscoveryJob.class))).thenReturn(mockJobConfiguration);
        when(mockJobConfiguration.withDefaultExecution(any())).thenReturn(mockJobConfiguration);

        mockMvc.perform(post("/api/v1/discovery/scans")
                        .with(csrf())
                        .contentType(MediaType.APPLICATION_JSON)
                        .content(objectMapper.writeValueAsString(scanRequest)))
                .andExpect(status().isAccepted())
                .andExpect(jsonPath("$.scanId").value(sampleJob.getJobId().toString()))
                .andExpect(jsonPath("$.status").value(JobStatus.PENDING.name()));
    }

    @Test
    @WithMockUser(authorities = "ROLE_USER") 
    void triggerScan_AsUser_ShouldBeForbidden() throws Exception {
        mockMvc.perform(post("/api/v1/discovery/scans")
                        .with(csrf())
                        .contentType(MediaType.APPLICATION_JSON)
                        .content(objectMapper.writeValueAsString(scanRequest)))
                .andExpect(status().isForbidden());
    }

    @Test
    @WithMockUser(authorities = "ROLE_USER")
    void getAllDiscoveryScans_AsUser_ShouldSucceed() throws Exception {
        List<DiscoveryJob> jobList = List.of(sampleJob);
        
        DiscoveryScanSummary summary = DiscoveryScanSummary.builder()
            .scanId(sampleJob.getJobId().toString())
            .scanName(sampleJob.getJobName())
            .scanType(JobType.RESOURCE_CRAWLER.name())
            .status(JobStatus.PENDING.name())
            .build();

        // Mock the actual methods called by the controller
        when(jobService.getAllJobs()).thenReturn(jobList);
        when(scanMapper.toDiscoveryScanSummary(eq(sampleJob), anyString())).thenReturn(summary);

        mockMvc.perform(get("/api/v1/discovery/scans").param("page", "0").param("size", "20"))
                .andExpect(status().isOk())
                .andDo(print())
                .andExpect(jsonPath("$.content[0].scanId").value(sampleJob.getJobId().toString()));
    }

    @Test
    @WithMockUser(authorities = "ROLE_USER")
    void getDiscoveryScanById_AsUser_ShouldSucceed() throws Exception {
        DiscoveryScanDetail detail = DiscoveryScanDetail.builder()
            .scanId(sampleJob.getJobId().toString())
            .scanName(sampleJob.getJobName())
            .status(sampleJob.getStatus().name())
            .build(); 
        when(jobService.getJob(sampleJob.getJobId())).thenReturn(Optional.of(sampleJob));
        when(scanMapper.toDiscoveryScanDetail(eq(sampleJob), anyString())).thenReturn(detail);

        mockMvc.perform(get("/api/v1/discovery/scans/{scanId}", sampleJob.getJobId()))
                .andExpect(status().isOk())
                .andExpect(jsonPath("$.scanId").value(sampleJob.getJobId().toString()));
    }
    
    @Test
    @WithMockUser(authorities = "ROLE_USER") 
    void createLegacyJob_AsUser_ShouldBeForbidden() throws Exception {
        mockMvc.perform(post("/api/v1/discovery/gcp/jobs")
                        .with(csrf())
                        .contentType(MediaType.APPLICATION_JSON)
                        .content("{ \"accountId\": \"test\", \"jobName\": \"legacy\" }"))
                .andExpect(status().isForbidden());
    }
}