package jnpf.elnController;

import jnpf.base.ActionResult;
import jnpf.eln.TemplateEditabilityApi;
import jnpf.elnService.template.ElnTemplateAnnotationAccessService;
import jnpf.elnService.template.ElnTemplateEditabilityService;
import jnpf.util.NoDataSourceBind;
import jnpf.util.context.SpringContext;
import org.junit.BeforeClass;
import org.junit.Test;
import org.springframework.cloud.openfeign.FeignClient;
import org.springframework.context.support.StaticApplicationContext;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestParam;

import java.lang.reflect.Method;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.concurrent.atomic.AtomicInteger;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;

public class ElnTemplateEditabilityControllerTest {

    @BeforeClass
    public static void setUpSpringContext() {
        SpringContext.setApplicationContext(new StaticApplicationContext());
    }

    @Test
    public void sameTokenCheckRunsBeforeService() {
        List<String> calls = new ArrayList<>();
        ElnTemplateEditabilityService service = (tenantId, templateId, fileId) -> {
            calls.add("service");
            return true;
        };
        ElnTemplateEditabilityController controller = new ElnTemplateEditabilityController(
                () -> calls.add("same-token"), service, (tenantId, userId, templateId, fileId) -> false);

        ActionResult<Boolean> result = controller.editable("tenant-a", "template-1", "file-1");

        assertEquals(Arrays.asList("same-token", "service"), calls);
        assertEquals(Boolean.TRUE, result.getData());
    }

    @Test
    public void failedSameTokenCheckPreventsServiceInvocation() {
        AtomicInteger serviceCalls = new AtomicInteger();
        ElnTemplateEditabilityController controller = new ElnTemplateEditabilityController(
                () -> { throw new SecurityException("invalid same token"); },
                (tenantId, templateId, fileId) -> {
                    serviceCalls.incrementAndGet();
                    return true;
                }, (tenantId, userId, templateId, fileId) -> false);

        try {
            controller.editable("tenant-a", "template-1", "file-1");
            fail("invalid SAME-TOKEN should be rejected");
        } catch (SecurityException expected) {
            assertEquals("invalid same token", expected.getMessage());
        }
        assertEquals(0, serviceCalls.get());
    }

    @Test
    public void controllerAndFeignShareInternalPostContract() throws Exception {
        Method controllerMethod = ElnTemplateEditabilityController.class.getMethod(
                "editable", String.class, String.class, String.class);
        assertNotNull(controllerMethod.getAnnotation(NoDataSourceBind.class));
        assertEquals("/editability", controllerMethod.getAnnotation(PostMapping.class).value()[0]);

        FeignClient feign = TemplateEditabilityApi.class.getAnnotation(FeignClient.class);
        assertEquals("jnpf-eln", feign.name());
        assertEquals("/Internal/eln/template", feign.path());
        Method feignMethod = TemplateEditabilityApi.class.getMethod(
                "editable", String.class, String.class, String.class);
        assertEquals("/editability", feignMethod.getAnnotation(PostMapping.class).value()[0]);
        Arrays.stream(feignMethod.getParameters()).forEach(parameter ->
                assertTrue(parameter.isAnnotationPresent(RequestParam.class)));

        Method annotationControllerMethod = ElnTemplateEditabilityController.class.getMethod(
                "canAnnotate", String.class, String.class, String.class, String.class);
        assertNotNull(annotationControllerMethod.getAnnotation(NoDataSourceBind.class));
        assertEquals("/annotationAccess",
                annotationControllerMethod.getAnnotation(PostMapping.class).value()[0]);
        Method annotationFeignMethod = TemplateEditabilityApi.class.getMethod(
                "canAnnotate", String.class, String.class, String.class, String.class);
        assertEquals("/annotationAccess",
                annotationFeignMethod.getAnnotation(PostMapping.class).value()[0]);
        Arrays.stream(annotationFeignMethod.getParameters()).forEach(parameter ->
                assertTrue(parameter.isAnnotationPresent(RequestParam.class)));
    }

    @Test
    public void sameTokenCheckRunsBeforeAnnotationAccessService() {
        List<String> calls = new ArrayList<>();
        ElnTemplateAnnotationAccessService annotationAccess = (tenantId, userId, templateId, fileId) -> {
            calls.add("annotation-access");
            return true;
        };
        ElnTemplateEditabilityController controller = new ElnTemplateEditabilityController(
                () -> calls.add("same-token"),
                (tenantId, templateId, fileId) -> false,
                annotationAccess);

        ActionResult<Boolean> result = controller.canAnnotate(
                "tenant-a", "user-1", "template-1", "file-1");

        assertEquals(Arrays.asList("same-token", "annotation-access"), calls);
        assertEquals(Boolean.TRUE, result.getData());
    }
}