fix

Service/Budget/BudgetSavingsService.cs

@@ -876,12 +876,26 @@ public class BudgetSavingsService(
             UpdateTime = dateTimeProvider.Now
         };
 
-        return BudgetResult.FromEntity(
+        // 生成明细数据
+        var details = GenerateYearlyDetails(
+            currentMonthlyIncomeItems,
+            currentYearlyIncomeItems,
+            currentMonthlyExpenseItems,
+            currentYearlyExpenseItems,
+            archiveIncomeItems,
+            archiveExpenseItems,
+            new DateTime(year, 1, 1)
+        );
+
+        var result = BudgetResult.FromEntity(
             record,
             currentActual,
             new DateTime(year, 1, 1),
             description.ToString()
         );
+        result.Details = details;
+
+        return result;
 
         void AddOrIncCurrentItem(
             long id,
@@ -1116,4 +1130,166 @@ public class BudgetSavingsService(
             }
         };
     }
+
+    /// <summary>
+    /// 生成年度存款明细数据
+    /// </summary>
+    private SavingsDetail GenerateYearlyDetails(
+        List<(long id, string name, decimal limit, int factor, decimal current, bool isMandatory)> currentMonthlyIncomeItems,
+        List<(long id, string name, decimal limit, int factor, decimal current, bool isMandatory)> currentYearlyIncomeItems,
+        List<(long id, string name, decimal limit, int factor, decimal current, bool isMandatory)> currentMonthlyExpenseItems,
+        List<(long id, string name, decimal limit, int factor, decimal current, bool isMandatory)> currentYearlyExpenseItems,
+        List<(long id, string name, int[] months, decimal limit, decimal current)> archiveIncomeItems,
+        List<(long id, string name, int[] months, decimal limit, decimal current)> archiveExpenseItems,
+        DateTime referenceDate)
+    {
+        var incomeDetails = new List<BudgetDetailItem>();
+        var expenseDetails = new List<BudgetDetailItem>();
+
+        // 处理已归档的收入预算
+        foreach (var item in archiveIncomeItems)
+        {
+            incomeDetails.Add(new BudgetDetailItem
+            {
+                Id = item.id,
+                Name = item.name,
+                Type = BudgetPeriodType.Month,
+                BudgetLimit = item.limit,
+                ActualAmount = item.current,
+                EffectiveAmount = item.current,
+                CalculationNote = $"已归档 ({string.Join(", ", item.months)}月)",
+                IsOverBudget = false,
+                IsArchived = true,
+                ArchivedMonths = item.months
+            });
+        }
+
+        // 处理当前月度收入预算
+        foreach (var item in currentMonthlyIncomeItems)
+        {
+            // 年度预算中,月度预算按 factor 倍率计算有效金额
+            var effectiveAmount = item.limit == 0 ? item.current : item.limit * item.factor;
+            var note = item.limit == 0 
+                ? "不记额(使用实际)" 
+                : $"预算 {item.limit:N0} × {item.factor}月 = {effectiveAmount:N0}";
+
+            incomeDetails.Add(new BudgetDetailItem
+            {
+                Id = item.id,
+                Name = item.name,
+                Type = BudgetPeriodType.Month,
+                BudgetLimit = item.limit,
+                ActualAmount = item.current,
+                EffectiveAmount = effectiveAmount,
+                CalculationNote = note,
+                IsOverBudget = item.current > 0 && item.current < item.limit,
+                IsArchived = false
+            });
+        }
+
+        // 处理当前年度收入预算
+        foreach (var item in currentYearlyIncomeItems)
+        {
+            // 年度预算:硬性预算或不记额预算使用实际值,否则使用预算值
+            var effectiveAmount = item.isMandatory || item.limit == 0 ? item.current : item.limit;
+            var note = item.isMandatory 
+                ? "硬性(使用实际)" 
+                : (item.limit == 0 ? "不记额(使用实际)" : "使用预算");
+
+            incomeDetails.Add(new BudgetDetailItem
+            {
+                Id = item.id,
+                Name = item.name,
+                Type = BudgetPeriodType.Year,
+                BudgetLimit = item.limit,
+                ActualAmount = item.current,
+                EffectiveAmount = effectiveAmount,
+                CalculationNote = note,
+                IsOverBudget = false,
+                IsArchived = false
+            });
+        }
+
+        // 处理已归档的支出预算
+        foreach (var item in archiveExpenseItems)
+        {
+            expenseDetails.Add(new BudgetDetailItem
+            {
+                Id = item.id,
+                Name = item.name,
+                Type = BudgetPeriodType.Month,
+                BudgetLimit = item.limit,
+                ActualAmount = item.current,
+                EffectiveAmount = item.current,
+                CalculationNote = $"已归档 ({string.Join(", ", item.months)}月)",
+                IsOverBudget = false,
+                IsArchived = true,
+                ArchivedMonths = item.months
+            });
+        }
+
+        // 处理当前月度支出预算
+        foreach (var item in currentMonthlyExpenseItems)
+        {
+            var effectiveAmount = item.limit == 0 ? item.current : item.limit * item.factor;
+            var note = item.limit == 0 
+                ? "不记额(使用实际)" 
+                : $"预算 {item.limit:N0} × {item.factor}月 = {effectiveAmount:N0}";
+
+            expenseDetails.Add(new BudgetDetailItem
+            {
+                Id = item.id,
+                Name = item.name,
+                Type = BudgetPeriodType.Month,
+                BudgetLimit = item.limit,
+                ActualAmount = item.current,
+                EffectiveAmount = effectiveAmount,
+                CalculationNote = note,
+                IsOverBudget = item.current > item.limit,
+                IsArchived = false
+            });
+        }
+
+        // 处理当前年度支出预算
+        foreach (var item in currentYearlyExpenseItems)
+        {
+            var effectiveAmount = item.isMandatory || item.limit == 0 ? item.current : item.limit;
+            var note = item.isMandatory 
+                ? "硬性(使用实际)" 
+                : (item.limit == 0 ? "不记额(使用实际)" : "使用预算");
+
+            expenseDetails.Add(new BudgetDetailItem
+            {
+                Id = item.id,
+                Name = item.name,
+                Type = BudgetPeriodType.Year,
+                BudgetLimit = item.limit,
+                ActualAmount = item.current,
+                EffectiveAmount = effectiveAmount,
+                CalculationNote = note,
+                IsOverBudget = item.current > item.limit,
+                IsArchived = false
+            });
+        }
+
+        // 计算汇总
+        var totalIncome = incomeDetails.Sum(i => i.EffectiveAmount);
+        var totalExpense = expenseDetails.Sum(e => e.EffectiveAmount);
+        var plannedSavings = totalIncome - totalExpense;
+
+        var formula = $"收入 {totalIncome:N0} - 支出 {totalExpense:N0} = {plannedSavings:N0}";
+
+        return new SavingsDetail
+        {
+            IncomeItems = incomeDetails,
+            ExpenseItems = expenseDetails,
+            Summary = new SavingsCalculationSummary
+            {
+                TotalIncomeBudget = totalIncome,
+                TotalExpenseBudget = totalExpense,
+                PlannedSavings = plannedSavings,
+                CalculationFormula = formula
+            }
+        };
+    }
 }