package com.gxwebsoft.gxmu.module;

import com.gxwebsoft.gxmu.module.entity.ModuleRegistry;
import com.gxwebsoft.gxmu.module.mapper.ModuleRegistryMapper;
import com.gxwebsoft.gxmu.module.service.ModuleRegistryService;
import com.gxwebsoft.gxmu.module.service.impl.ModuleRegistryServiceImpl;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.extension.ExtendWith;
import org.mockito.InjectMocks;
import org.mockito.Mock;
import org.mockito.junit.jupiter.MockitoExtension;
import org.mockito.junit.jupiter.MockitoSettings;
import org.mockito.quality.Strictness;

import java.util.Arrays;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;

import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertFalse;
import static org.junit.jupiter.api.Assertions.assertNull;
import static org.junit.jupiter.api.Assertions.assertTrue;
import static org.mockito.ArgumentMatchers.any;
import static org.mockito.Mockito.when;

/**
 * 模块注册表服务的单元测试（mock 掉 Mapper，不启 Spring、不连库）。
 *
 * <p>注册表是模块元数据的唯一来源，这里锁住四件对外可观察的事：
 * 启用清单只留启用项且保持 SQL 的排序（排序只在 SQL 里做一次）、
 * 模块集合包含已停用模块（停用模块的历史数据仍要能撤回/作废）、
 * has_college 决定审批人解析是否读学院上下文、标题回退只有一份实现。
 *
 * @author Codex
 * @since 2026-11-10
 */
@ExtendWith(MockitoExtension.class)
@MockitoSettings(strictness = Strictness.LENIENT)
class ModuleRegistryServiceImplTest {

    @Mock
    private ModuleRegistryMapper moduleRegistryMapper;

    @InjectMocks
    private ModuleRegistryServiceImpl moduleRegistryService;

    @Test
    void listEnabledReturnsOnlyEnabledModulesInSqlOrder() {
        // SQL 已按 sort_number 升序返回；服务只负责过滤，不再二次排序
        when(moduleRegistryMapper.selectList(any())).thenReturn(Arrays.asList(
                module("gxmu_sjqn", "十佳青年岗位能手", 1, 1, 1),
                module("gxmu_sjtbzbsj", "十佳团支部书记", 0, 2, 0),
                module("gxmu_qmgc_form", "青马工程", 1, 8, 1)));

        List<ModuleRegistry> enabled = moduleRegistryService.listEnabled();

        assertEquals(Arrays.asList("gxmu_sjqn", "gxmu_qmgc_form"),
                enabled.stream().map(ModuleRegistry::getModule).collect(Collectors.toList()));
    }

    @Test
    void titleMapCoversDisabledModulesSoHistoricalRowsKeepTitles() {
        when(moduleRegistryMapper.selectList(any())).thenReturn(Arrays.asList(
                module("gxmu_sjqn", "十佳青年岗位能手", 1, 1, 1),
                module("gxmu_yxgqty", "优秀共青团员", 0, 6, 0)));

        Map<String, String> titles = moduleRegistryService.titleMap();

        assertEquals("十佳青年岗位能手", titles.get("gxmu_sjqn"));
        assertEquals("优秀共青团员", titles.get("gxmu_yxgqty"));
        assertEquals(2, titles.size());
    }

    @Test
    void moduleSetContainsDisabledModules() {
        when(moduleRegistryMapper.selectList(any())).thenReturn(Arrays.asList(
                module("gxmu_sjqn", "十佳青年岗位能手", 1, 1, 1),
                module("gxmu_yxgqty", "优秀共青团员", 0, 6, 0)));

        assertTrue(moduleRegistryService.containsModule("gxmu_yxgqty"));
        assertFalse(moduleRegistryService.containsModule("gxmu_unknown"));
        assertFalse(moduleRegistryService.containsModule(null));
    }

    @Test
    void hasCollegeFollowsTheRegistryFlag() {
        when(moduleRegistryMapper.selectOne(any())).thenReturn(module("gxmu_sjqn", "十佳青年岗位能手", 1, 1, 1));

        assertTrue(moduleRegistryService.hasCollege("gxmu_sjqn"));
    }

    @Test
    void hasCollegeIsFalseForDisabledOrMissingFlag() {
        when(moduleRegistryMapper.selectOne(any())).thenReturn(module("gxmu_tygl", "团员管理", 0, 12, 0));

        assertFalse(moduleRegistryService.hasCollege("gxmu_tygl"));
        assertFalse(moduleRegistryService.hasCollege(null));
    }

    @Test
    void titleOfUsesRegistryTitleWhenPresent() {
        Map<String, String> titles = new HashMap<>();
        titles.put("gxmu_tzbcy_form", "挑战杯");

        assertEquals("挑战杯", ModuleRegistryService.titleOf(titles, "gxmu_tzbcy_form"));
    }

    @Test
    void titleOfFallsBackToModuleStringWhenNotRegistered() {
        assertEquals("cms_legacy_module", ModuleRegistryService.titleOf(new HashMap<>(), "cms_legacy_module"));
        assertEquals("cms_legacy_module", ModuleRegistryService.titleOf(null, "cms_legacy_module"));
    }

    @Test
    void titleOfKeepsNullModuleNull() {
        assertNull(ModuleRegistryService.titleOf(new HashMap<>(), null));
    }

    private ModuleRegistry module(String name, String title, int enabled, int sortNumber, int hasCollege) {
        ModuleRegistry item = new ModuleRegistry();
        item.setModule(name);
        item.setTableName(name);
        item.setTitle(title);
        item.setDetailKey(name);
        item.setEnabled(enabled);
        item.setSortNumber(sortNumber);
        item.setHasCollege(hasCollege);
        item.setDeleted(0);
        return item;
    }
}