package jnpf.elnService.impl;

import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import jnpf.elnEntity.ElnMubanFileVo;
import jnpf.elnMapper.ElnDianziJiluMubanMapper;
import jnpf.exception.DataException;
import org.junit.Assert;
import org.junit.Test;
import org.springframework.beans.factory.annotation.Autowired;

import java.lang.reflect.Constructor;
import java.util.Arrays;
import java.util.concurrent.atomic.AtomicReference;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNull;

public class ElnDianziJiluMubanServiceImplTest {

    @Test
    public void marksProductionConstructorForSpringInjection() throws Exception {
        Constructor<ElnDianziJiluMubanServiceImpl> constructor =
                ElnDianziJiluMubanServiceImpl.class.getConstructor(ElnDianziJiluMubanMapper.class);

        Assert.assertNotNull(constructor.getAnnotation(Autowired.class));
    }

    @Test
    public void returnsFirstFileForCurrentTenant() {
        AtomicReference<String> tenant = new AtomicReference<>();
        AtomicReference<String> item = new AtomicReference<>();
        ElnDianziJiluMubanMapper mapper = (requestPage, tenantId, jianyanXiangmu) -> {
            assertEquals(1L, requestPage.getCurrent());
            assertEquals(1L, requestPage.getSize());
            Assert.assertFalse(requestPage.searchCount());
            tenant.set(tenantId);
            item.set(jianyanXiangmu);
            return resultPage(
                    "[{\"fileId\":\"file-1.docx\",\"name\":\"记录模板.docx\","
                            + "\"url\":\"/api/file/Image/annex/file-1.docx\",\"fileSize\":128,"
                            + "\"fileExtension\":\"docx\",\"fileVersionId\":null}]");
        };

        ElnMubanFileVo result = new ElnDianziJiluMubanServiceImpl(mapper, () -> "tenant-1")
                .getFile("item-1");

        assertEquals("tenant-1", tenant.get());
        assertEquals("item-1", item.get());
        assertEquals("file-1.docx", result.getFileId());
        assertEquals("记录模板.docx", result.getName());
        assertEquals(Long.valueOf(128), result.getFileSize());
    }

    @Test
    public void returnsNullWhenTemplateOrArrayIsEmpty() {
        assertNull(new ElnDianziJiluMubanServiceImpl(
                (page, tenant, item) -> resultPage(), () -> "tenant-1").getFile("item-1"));
        assertNull(new ElnDianziJiluMubanServiceImpl(
                (page, tenant, item) -> resultPage("[]"), () -> "tenant-1").getFile("item-1"));
    }

    @Test(expected = DataException.class)
    public void rejectsMalformedFileJson() {
        new ElnDianziJiluMubanServiceImpl(
                (page, tenant, item) -> resultPage("not-json"),
                () -> "tenant-1").getFile("item-1");
    }

    @Test(expected = DataException.class)
    public void rejectsJsonNull() {
        new ElnDianziJiluMubanServiceImpl(
                (page, tenant, item) -> resultPage("null"),
                () -> "tenant-1").getFile("item-1");
    }

    @Test(expected = DataException.class)
    public void rejectsNullFirstFile() {
        new ElnDianziJiluMubanServiceImpl(
                (page, tenant, item) -> resultPage("[null]"),
                () -> "tenant-1").getFile("item-1");
    }

    private static IPage<String> resultPage(String... records) {
        return new Page<String>(1, 1, false).setRecords(Arrays.asList(records));
    }
}