课程库 Excel 导入导出已完成：

支持下载标准导入模板。导出严格沿用当前关键词、学院、分类、课程性质和状态筛选。以课程编码为唯一键：存在则更新，不存在则新增。校验学院编码、课程分类、课程性质、学分学时及考核方式。整批原子导入，任一行错误则全部不写入，并提示具体行号。学院管理员仍只能维护本学院的专业课和实践课，无法借 Excel 越权。界面入口沿用现有课程库工具栏样式。
2026-07-24 18:56:25 +08:00
parent 5a7a8d530b
commit d7cf3f9e76
24 changed files with 3710 additions and 32 deletions
@@ -0,0 +1,57 @@
+using Jiaowu.Api.Domain.Academic;
+
+namespace Jiaowu.Api.Infrastructure.Graduation;
+
+public sealed record CurriculumCompletionSummary(
+    int RequirementCount,
+    int PassedRequirementCount,
+    IReadOnlyList<string> MissingRequirements);
+
+public static class CurriculumCompletionRules
+{
+    public static CurriculumCompletionSummary Evaluate(
+        IEnumerable<CurriculumModule> modules,
+        IReadOnlySet<Guid> passedCourseIds)
+    {
+        var moduleList = modules.ToList();
+        var requiredCourses = moduleList
+            .SelectMany(x => x.Courses)
+            .Where(x => x.Type == CurriculumCourseType.Required)
+            .ToList();
+        var optionGroups = moduleList
+            .Where(x =>
+                x.RequiredCredits > 0 &&
+                x.Courses.Any(course => course.Type == CurriculumCourseType.Elective))
+            .ToList();
+
+        var missing = requiredCourses
+            .Where(x => !passedCourseIds.Contains(x.CourseId))
+            .Select(x => x.Course?.Name ?? "未命名必修课程")
+            .Distinct()
+            .ToList();
+        var passedRequiredCourses = requiredCourses.Count -
+                                    requiredCourses.Count(x =>
+                                        !passedCourseIds.Contains(x.CourseId));
+        var passedGroups = 0;
+        foreach (var module in optionGroups)
+        {
+            var earnedGroupCredits = module.Courses
+                .Where(x => passedCourseIds.Contains(x.CourseId))
+                .GroupBy(x => x.CourseId)
+                .Sum(group => group.Max(x => x.Course?.Credits ?? 0));
+            if (earnedGroupCredits >= module.RequiredCredits)
+            {
+                passedGroups++;
+                continue;
+            }
+
+            var shortage = module.RequiredCredits - earnedGroupCredits;
+            missing.Add($"{module.Name}（还差 {shortage:0.#} 学分）");
+        }
+
+        return new CurriculumCompletionSummary(
+            requiredCourses.Count + optionGroups.Count,
+            passedRequiredCourses + passedGroups,
+            missing);
+    }
+}