package com.ruoyi.other.service.impl;

import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.ruoyi.account.api.dto.VinManagementQueryDTO;
import com.ruoyi.account.api.feignClient.FleetUnbindClient;
import com.ruoyi.account.api.feignClient.VinManagementClient;
import com.ruoyi.account.api.model.TVinManagement;
import com.ruoyi.common.core.domain.R;
import com.ruoyi.common.core.exception.ServiceException;
import com.ruoyi.other.api.domain.TChargeAuthorization;
import com.ruoyi.other.api.domain.TFleet;
import com.ruoyi.other.api.domain.TGroupCompany;
import com.ruoyi.other.api.feignClient.FleetOrderAggregateClient;
import com.ruoyi.other.api.vo.FleetOrderAggregateVO;
import com.ruoyi.other.mapper.TChargeAuthorizationMapper;
import com.ruoyi.other.service.TGroupCompanyService;
import org.junit.jupiter.api.Test;
import org.mockito.ArgumentCaptor;
import org.mockito.Mockito;
import org.springframework.test.util.ReflectionTestUtils;

import java.math.BigDecimal;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;

import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertNotNull;
import static org.junit.jupiter.api.Assertions.assertNull;
import static org.junit.jupiter.api.Assertions.assertSame;
import static org.junit.jupiter.api.Assertions.assertThrows;
import static org.junit.jupiter.api.Assertions.assertTrue;

/**
 * 车队服务单测（覆盖 VIN 列表分页代理 + 5 列聚合 fillAggregates）。
 * 远程客户端和 Mapper 以 Mock 替代，不依赖 Spring 容器与数据库。
 */
class TFleetServiceImplTest {

    @Test
    void passesFleetIdAndPagingToVinService() {
        VinManagementClient client = Mockito.mock(VinManagementClient.class);
        Page<TVinManagement> expected = new Page<>(1, 10);
        expected.setTotal(1);
        expected.setRecords(Collections.singletonList(vehicle()));
        Mockito.when(client.getVinPageByFleet(Mockito.any())).thenReturn(R.ok(expected));

        Page<TVinManagement> actual = buildService(fleet(4), client, null, null).selectVinPage(4, 1, 10);

        assertSame(expected, actual);
        ArgumentCaptor<VinManagementQueryDTO> captor = ArgumentCaptor.forClass(VinManagementQueryDTO.class);
        Mockito.verify(client).getVinPageByFleet(captor.capture());
        assertEquals(4, captor.getValue().getFleetId());
        assertEquals(1, captor.getValue().getPageCurr());
        assertEquals(10, captor.getValue().getPageSize());
    }

    @Test
    void fallsBackToDefaultPagingWhenParamsInvalid() {
        VinManagementClient client = Mockito.mock(VinManagementClient.class);
        Mockito.when(client.getVinPageByFleet(Mockito.any())).thenReturn(R.ok(new Page<>(1, 10)));

        buildService(fleet(5), client, null, null).selectVinPage(5, null, 0);

        ArgumentCaptor<VinManagementQueryDTO> captor = ArgumentCaptor.forClass(VinManagementQueryDTO.class);
        Mockito.verify(client).getVinPageByFleet(captor.capture());
        assertEquals(1, captor.getValue().getPageCurr());
        assertEquals(10, captor.getValue().getPageSize());
    }

    @Test
    void rejectsMissingFleetId() {
        VinManagementClient client = Mockito.mock(VinManagementClient.class);
        TFleetServiceImpl service = buildService(null, client, null, null);

        ServiceException ex = assertThrows(ServiceException.class, () -> service.selectVinPage(null, 1, 10));

        assertTrue(ex.getMessage().contains("车队ID不能为空"), ex.getMessage());
        Mockito.verifyNoInteractions(client);
    }

    @Test
    void rejectsUnknownFleet() {
        VinManagementClient client = Mockito.mock(VinManagementClient.class);
        TFleetServiceImpl service = buildService(null, client, null, null);

        ServiceException ex = assertThrows(ServiceException.class, () -> service.selectVinPage(9, 1, 10));

        assertTrue(ex.getMessage().contains("车队不存在"), ex.getMessage());
        Mockito.verifyNoInteractions(client);
    }

    @Test
    void failsWhenRemoteReturnsError() {
        VinManagementClient client = Mockito.mock(VinManagementClient.class);
        Mockito.when(client.getVinPageByFleet(Mockito.any())).thenReturn(R.fail("VIN 管理服务调用失败"));

        ServiceException ex = assertThrows(ServiceException.class,
                () -> buildService(fleet(4), client, null, null).selectVinPage(4, 1, 10));

        assertTrue(ex.getMessage().contains("VIN码车辆查询失败"), ex.getMessage());
    }

    @Test
    void failsWhenRemoteReturnsNullData() {
        VinManagementClient client = Mockito.mock(VinManagementClient.class);
        Mockito.when(client.getVinPageByFleet(Mockito.any())).thenReturn(null);

        ServiceException ex = assertThrows(ServiceException.class,
                () -> buildService(fleet(4), client, null, null).selectVinPage(4, 1, 10));

        assertTrue(ex.getMessage().contains("服务无响应"), ex.getMessage());
    }

    @Test
    void fillsCompanyBalanceForSharedAccountMode() {
        VinManagementClient client = Mockito.mock(VinManagementClient.class);
        Page<TVinManagement> page = new Page<>(1, 10);
        page.setRecords(Collections.singletonList(vehicle()));
        Mockito.when(client.getVinPageByFleet(Mockito.any())).thenReturn(R.ok(page));

        TGroupCompanyService groupCompanyService = Mockito.mock(TGroupCompanyService.class);
        TGroupCompany company = new TGroupCompany();
        company.setId(7);
        company.setAccountMode(1);
        company.setAvailableBalance(new BigDecimal("500.00"));
        Mockito.when(groupCompanyService.getById(7)).thenReturn(company);

        TFleet fleet = fleet(4);
        fleet.setCompanyId(7);

        buildService(fleet, client, null, null, groupCompanyService).selectVinPage(4, 1, 10);

        // 共享模式展示公司当前可用余额，而非 VIN 自身余额（vehicle() balance=30.00）
        assertEquals(0, new BigDecimal("500.00").compareTo(page.getRecords().get(0).getAvailableBalance()));
    }

    @Test
    void fillsVinBalanceForAllocationAccountMode() {
        VinManagementClient client = Mockito.mock(VinManagementClient.class);
        Page<TVinManagement> page = new Page<>(1, 10);
        page.setRecords(Collections.singletonList(vehicle()));
        Mockito.when(client.getVinPageByFleet(Mockito.any())).thenReturn(R.ok(page));

        TGroupCompanyService groupCompanyService = Mockito.mock(TGroupCompanyService.class);
        TGroupCompany company = new TGroupCompany();
        company.setId(7);
        company.setAccountMode(2);
        company.setAvailableBalance(new BigDecimal("500.00"));
        Mockito.when(groupCompanyService.getById(7)).thenReturn(company);

        TFleet fleet = fleet(4);
        fleet.setCompanyId(7);

        buildService(fleet, client, null, null, groupCompanyService).selectVinPage(4, 1, 10);

        // 分配模式展示 VIN 自身余额
        assertEquals(0, new BigDecimal("30.00").compareTo(page.getRecords().get(0).getAvailableBalance()));
    }

    @Test
    void treatsNullAccountModeAsSharedAndKeepsNullWhenCompanyMissing() {
        VinManagementClient client = Mockito.mock(VinManagementClient.class);
        Page<TVinManagement> page = new Page<>(1, 10);
        TVinManagement first = vehicle();
        page.setRecords(Collections.singletonList(first));
        Mockito.when(client.getVinPageByFleet(Mockito.any())).thenReturn(R.ok(page));

        TGroupCompanyService groupCompanyService = Mockito.mock(TGroupCompanyService.class);
        TGroupCompany company = new TGroupCompany();
        company.setId(7);
        company.setAccountMode(null);
        company.setAvailableBalance(new BigDecimal("88.00"));
        Mockito.when(groupCompanyService.getById(7)).thenReturn(company);

        TFleet fleet = fleet(4);
        fleet.setCompanyId(7);
        buildService(fleet, client, null, null, groupCompanyService).selectVinPage(4, 1, 10);

        // 历史数据账户模式为 null 时按共享模式展示公司余额（与系统"仅 ==2 为分配"口径一致）
        assertEquals(0, new BigDecimal("88.00").compareTo(first.getAvailableBalance()));

        // 公司不存在（如已被删除）→ 保持 null，前端显示 '-'
        Mockito.when(groupCompanyService.getById(8)).thenReturn(null);
        TFleet other = fleet(6);
        other.setCompanyId(8);
        Page<TVinManagement> otherPage = new Page<>(1, 10);
        TVinManagement third = vehicle();
        third.setId(3L);
        otherPage.setRecords(Collections.singletonList(third));
        Mockito.when(client.getVinPageByFleet(Mockito.any())).thenReturn(R.ok(otherPage));

        buildService(other, client, null, null, groupCompanyService).selectVinPage(6, 1, 10);

        assertNull(third.getAvailableBalance());
    }

    @Test
    void fillAggregatesPopulatesAllFiveFields() {
        VinManagementClient vinClient = Mockito.mock(VinManagementClient.class);
        FleetOrderAggregateClient aggClient = Mockito.mock(FleetOrderAggregateClient.class);
        TChargeAuthorizationMapper authMapper = Mockito.mock(TChargeAuthorizationMapper.class);

        TFleet fleet = fleet(101);
        fleet.setCompanyId(7);

        Mockito.when(vinClient.countByFleet(101)).thenReturn(R.ok(8L));

        FleetOrderAggregateVO vo = new FleetOrderAggregateVO();
        vo.setCumulativeCharge(new BigDecimal("12.34"));
        vo.setCumulativeElectrovalence(new BigDecimal("56.78"));
        vo.setCumulativeServiceCharge(new BigDecimal("9.10"));
        Mockito.when(aggClient.aggregateByFleet(101)).thenReturn(R.ok(vo));

        TChargeAuthorization auth = new TChargeAuthorization();
        auth.setCompanyId(7);
        auth.setSiteIds("1,2,3,2,1");
        Mockito.when(authMapper.selectList(Mockito.any())).thenReturn(Collections.singletonList(auth));

        TFleetServiceImpl service = buildService(fleet, vinClient, aggClient, authMapper);
        service.fillAggregates(Arrays.asList(fleet));

        assertEquals(8L, fleet.getVinCount());
        assertEquals(3L, fleet.getStationCount());
        assertNotNull(fleet.getCumulativeCharge());
        assertEquals(0, new BigDecimal("12.34").compareTo(fleet.getCumulativeCharge()));
        assertEquals(0, new BigDecimal("56.78").compareTo(fleet.getCumulativeElectrovalence()));
        assertEquals(0, new BigDecimal("9.10").compareTo(fleet.getCumulativeServiceCharge()));
    }

    @Test
    void fillAggregatesHandlesNullFleetIdSafely() {
        VinManagementClient vinClient = Mockito.mock(VinManagementClient.class);
        FleetOrderAggregateClient aggClient = Mockito.mock(FleetOrderAggregateClient.class);
        TChargeAuthorizationMapper authMapper = Mockito.mock(TChargeAuthorizationMapper.class);
        TFleetServiceImpl service = buildService(null, vinClient, aggClient, authMapper);

        // 传入空集合 / null 不抛异常
        service.fillAggregates(null);
        service.fillAggregates(Collections.emptyList());
        Mockito.verifyNoInteractions(vinClient, aggClient, authMapper);
    }

    @Test
    void fillAggregatesFallsBackToZeroOnRemoteFailure() {
        VinManagementClient vinClient = Mockito.mock(VinManagementClient.class);
        FleetOrderAggregateClient aggClient = Mockito.mock(FleetOrderAggregateClient.class);
        TChargeAuthorizationMapper authMapper = Mockito.mock(TChargeAuthorizationMapper.class);

        TFleet fleet = fleet(202);
        fleet.setCompanyId(null);
        Mockito.when(vinClient.countByFleet(202)).thenReturn(R.fail("down"));
        Mockito.when(aggClient.aggregateByFleet(202)).thenReturn(null);
        Mockito.when(authMapper.selectList(Mockito.any())).thenReturn(Collections.emptyList());

        TFleetServiceImpl service = buildService(fleet, vinClient, aggClient, authMapper);
        service.fillAggregates(Arrays.asList(fleet));

        assertEquals(0L, fleet.getVinCount());
        assertEquals(0L, fleet.getStationCount());
        assertEquals(BigDecimal.ZERO, fleet.getCumulativeCharge());
        assertEquals(BigDecimal.ZERO, fleet.getCumulativeElectrovalence());
        assertEquals(BigDecimal.ZERO, fleet.getCumulativeServiceCharge());
    }

    private TFleetServiceImpl buildService(TFleet fleet, VinManagementClient client,
                                           FleetOrderAggregateClient aggClient,
                                           TChargeAuthorizationMapper authMapper) {
        return buildService(fleet, client, aggClient, authMapper, Mockito.mock(TGroupCompanyService.class));
    }

    private TFleetServiceImpl buildService(TFleet fleet, VinManagementClient client,
                                           FleetOrderAggregateClient aggClient,
                                           TChargeAuthorizationMapper authMapper,
                                           TGroupCompanyService groupCompanyService) {
        TFleetServiceImpl service = Mockito.spy(new TFleetServiceImpl());
        Mockito.doReturn(fleet).when(service).getById(Mockito.any());
        ReflectionTestUtils.setField(service, "vinManagementClient", client);
        ReflectionTestUtils.setField(service, "fleetOrderAggregateClient", aggClient);
        ReflectionTestUtils.setField(service, "chargeAuthorizationMapper", authMapper);
        ReflectionTestUtils.setField(service, "groupCompanyService", groupCompanyService);
        return service;
    }

    @Test
    void deleteFleetsUnbindsThenRemoves() {
        FleetUnbindClient unbindClient = Mockito.mock(FleetUnbindClient.class);
        Mockito.when(unbindClient.unbindByFleetIds(Mockito.anyList())).thenReturn(R.ok(3));

        TFleetServiceImpl service = Mockito.spy(new TFleetServiceImpl());
        ReflectionTestUtils.setField(service, "fleetUnbindClient", unbindClient);
        Mockito.doReturn(Arrays.asList(fleet(1), fleet(2))).when(service).listByIds(Mockito.anyList());
        Mockito.doReturn(true).when(service).removeByIds(Mockito.anyList());

        assertTrue(service.deleteFleets(Arrays.asList(1, 2)));

        @SuppressWarnings("unchecked")
        ArgumentCaptor<List<Integer>> idsCaptor = ArgumentCaptor.forClass(List.class);
        Mockito.verify(unbindClient).unbindByFleetIds(idsCaptor.capture());
        assertEquals(Arrays.asList(1, 2), idsCaptor.getValue());
        Mockito.verify(service).removeByIds(Mockito.anyList());
    }

    @Test
    void deleteFleetsDeduplicatesAndFiltersNullIds() {
        FleetUnbindClient unbindClient = Mockito.mock(FleetUnbindClient.class);
        Mockito.when(unbindClient.unbindByFleetIds(Mockito.anyList())).thenReturn(R.ok(0));

        TFleetServiceImpl service = Mockito.spy(new TFleetServiceImpl());
        ReflectionTestUtils.setField(service, "fleetUnbindClient", unbindClient);
        Mockito.doReturn(Collections.singletonList(fleet(1))).when(service).listByIds(Mockito.anyList());
        Mockito.doReturn(true).when(service).removeByIds(Mockito.anyList());

        assertTrue(service.deleteFleets(Arrays.asList(1, null, 1)));

        @SuppressWarnings("unchecked")
        ArgumentCaptor<List<Integer>> idsCaptor = ArgumentCaptor.forClass(List.class);
        Mockito.verify(unbindClient).unbindByFleetIds(idsCaptor.capture());
        assertEquals(Collections.singletonList(1), idsCaptor.getValue());
        Mockito.verify(service).removeByIds(Collections.singletonList(1));
    }

    @Test
    void deleteFleetsRejectsNullOrEmptyIds() {
        TFleetServiceImpl service = Mockito.spy(new TFleetServiceImpl());
        ReflectionTestUtils.setField(service, "fleetUnbindClient", Mockito.mock(FleetUnbindClient.class));

        ServiceException nullEx = assertThrows(ServiceException.class, () -> service.deleteFleets(null));
        assertTrue(nullEx.getMessage().contains("请选择需要删除的车队"), nullEx.getMessage());
        ServiceException emptyEx = assertThrows(ServiceException.class,
                () -> service.deleteFleets(Arrays.asList(null, null)));
        assertTrue(emptyEx.getMessage().contains("请选择需要删除的车队"), emptyEx.getMessage());
    }

    @Test
    void deleteFleetsRejectsMissingFleetWithoutUnbinding() {
        FleetUnbindClient unbindClient = Mockito.mock(FleetUnbindClient.class);

        TFleetServiceImpl service = Mockito.spy(new TFleetServiceImpl());
        ReflectionTestUtils.setField(service, "fleetUnbindClient", unbindClient);
        Mockito.doReturn(Collections.emptyList()).when(service).listByIds(Mockito.anyList());

        ServiceException ex = assertThrows(ServiceException.class, () -> service.deleteFleets(Collections.singletonList(9)));

        assertTrue(ex.getMessage().contains("部分车队不存在"), ex.getMessage());
        Mockito.verifyNoInteractions(unbindClient);
        Mockito.verify(service, Mockito.never()).removeByIds(Mockito.anyList());
    }

    @Test
    void deleteFleetsAbortsWhenUnbindFails() {
        FleetUnbindClient unbindClient = Mockito.mock(FleetUnbindClient.class);
        Mockito.when(unbindClient.unbindByFleetIds(Mockito.anyList())).thenReturn(R.fail("车队关联数据解绑失败:超时"));

        TFleetServiceImpl service = Mockito.spy(new TFleetServiceImpl());
        ReflectionTestUtils.setField(service, "fleetUnbindClient", unbindClient);
        Mockito.doReturn(Collections.singletonList(fleet(1))).when(service).listByIds(Mockito.anyList());

        ServiceException ex = assertThrows(ServiceException.class, () -> service.deleteFleets(Collections.singletonList(1)));

        // 解绑失败中止删除：车队与绑定关系均保留，两侧数据保持一致
        assertTrue(ex.getMessage().contains("车队关联数据解绑失败"), ex.getMessage());
        Mockito.verify(service, Mockito.never()).removeByIds(Mockito.anyList());
    }

    @Test
    void deleteFleetsAbortsWhenRemoteThrows() {
        FleetUnbindClient unbindClient = Mockito.mock(FleetUnbindClient.class);
        Mockito.when(unbindClient.unbindByFleetIds(Mockito.anyList()))
                .thenThrow(new RuntimeException("connect refused"));

        TFleetServiceImpl service = Mockito.spy(new TFleetServiceImpl());
        ReflectionTestUtils.setField(service, "fleetUnbindClient", unbindClient);
        Mockito.doReturn(Collections.singletonList(fleet(1))).when(service).listByIds(Mockito.anyList());

        ServiceException ex = assertThrows(ServiceException.class, () -> service.deleteFleets(Collections.singletonList(1)));

        assertTrue(ex.getMessage().contains("车队关联数据解绑失败"), ex.getMessage());
        Mockito.verify(service, Mockito.never()).removeByIds(Mockito.anyList());
    }

    private TFleet fleet(Integer id) {
        TFleet fleet = new TFleet();
        fleet.setId(id);
        return fleet;
    }

    private TVinManagement vehicle() {
        TVinManagement item = new TVinManagement();
        item.setId(1L);
        item.setVin("12345678900000000");
        item.setPlateNumber("川A123456");
        item.setFleetId(4);
        item.setBalance(new BigDecimal("30.00"));
        item.setStatus(1);
        return item;
    }
}