feat: improve attendance scheduling and API validation

apps/server/src/expenses/dto/expense.dto.ts

@@ -1,4 +1,6 @@
-import { IsIn, IsInt, IsString, IsNumber, IsOptional, Matches, Min } from 'class-validator';
+import { IsDateString, IsIn, IsInt, IsString, IsNumber, IsOptional, Matches, Min } from 'class-validator';
+import { PartialType } from '@nestjs/mapped-types';
+import { Type } from 'class-transformer';
 
 export class CreateRoomExpenseDto {
   @IsInt()
@@ -7,13 +9,14 @@ export class CreateRoomExpenseDto {
   @IsString()
   expenseType: string;
 
-  @IsNumber()
+  @IsNumber({ maxDecimalPlaces: 2 })
+  @Min(0.01)
   amount: number;
 
-  @IsString()
+  @IsDateString()
   periodStart: string;
 
-  @IsString()
+  @IsDateString()
   periodEnd: string;
 
   @IsOptional()
@@ -32,10 +35,11 @@ export class CreatePersonalExpenseDto {
   @IsString()
   expenseType: string;
 
-  @IsNumber()
+  @IsNumber({ maxDecimalPlaces: 2 })
+  @Min(0.01)
   amount: number;
 
-  @IsString()
+  @IsDateString()
   expenseDate: string;
 
   @IsOptional()
@@ -43,6 +47,33 @@ export class CreatePersonalExpenseDto {
   description?: string;
 }
 
+
+export class UpdateRoomExpenseDto extends PartialType(CreateRoomExpenseDto) {}
+
+export class UpdatePersonalExpenseDto extends PartialType(CreatePersonalExpenseDto) {}
+
+export class QueryRoomExpenseDto {
+  @IsOptional()
+  @Type(() => Number)
+  @IsInt()
+  roomId?: number;
+
+  @IsOptional()
+  @IsDateString()
+  periodStart?: string;
+
+  @IsOptional()
+  @IsDateString()
+  periodEnd?: string;
+}
+
+export class QueryPersonalExpenseDto {
+  @IsOptional()
+  @Type(() => Number)
+  @IsInt()
+  studentId?: number;
+}
+
 export class BatchRoomExpenseDto {
   @IsString()
   periodStart: string;