feat(module): search and filter querries for shifts, expenses, timesheets, leave-requests

src/common/shared/build-prisma-where.ts

@@ -0,0 +1,21 @@
+//Prisma 'where' clause for DTO filters
+export function buildPrismaWhere<T extends Record<string, any>>(dto: T): Record <string, any> {
+    const where: Record<string,any> = {};
+
+    for (const [key,value] of Object.entries(dto)) {
+        if (value === undefined || value === null) continue;
+
+        if (key.endsWith('_contains')) {
+            const field = key.slice(0, - '_contains'.length);
+            where[field] = { constains: value }; 
+        } else if (key === 'start_date' || key === 'end_date') {
+            where.date = where.date || {};
+            const op = key === 'start_date' ? 'gte' : 'lte';
+            where.date[op] = new Date(value);
+        } else {
+            where[key] = value;
+        }
+    }
+
+    return where;
+}

src/modules/expenses/controllers/expenses.controller.ts

@@ -1,14 +1,15 @@
-import { Body, Controller, Delete, Get, Param, ParseBoolPipe, ParseIntPipe, Patch, Post, UseGuards } from "@nestjs/common";
+import { Body, Controller, Delete, Get, Param, ParseBoolPipe, ParseIntPipe, Patch, Post, Query, UseGuards, UsePipes, ValidationPipe } from "@nestjs/common";
 import { ExpensesService } from "../services/expenses.service";
-import { CreateExpenseDto } from "../dtos/create-expense";
+import { CreateExpenseDto } from "../dtos/create-expense.dto";
 import { Expenses } from "@prisma/client";
 import { Roles as RoleEnum } from '.prisma/client';
-import { UpdateExpenseDto } from "../dtos/update-expense";
+import { UpdateExpenseDto } from "../dtos/update-expense.dto";
 import { ApiBearerAuth, ApiOperation, ApiResponse, ApiTags } from "@nestjs/swagger";
 import { RolesAllowed } from "src/common/decorators/roles.decorators";
 import { JwtAuthGuard } from "src/modules/authentication/guards/jwt-auth.guard";
 import { ExpenseEntity } from "../dtos/swagger-entities/expenses.entity";
 import { ExpensesApprovalService } from "../services/expenses-approval.service";
+import { SearchExpensesDto } from "../dtos/search-expense.dto";
 
 @ApiTags('Expenses')
 @ApiBearerAuth('access-token')
@@ -34,8 +35,9 @@ export class ExpensesController {
     @ApiOperation({ summary: 'Find all expenses' })
     @ApiResponse({ status: 201, description: 'List of expenses found',type: ExpenseEntity, isArray: true })
     @ApiResponse({ status: 400, description: 'List of expenses not found' })
-    findAll(): Promise<Expenses[]> {
-        return this.expensesService.findAll();
+    @UsePipes(new ValidationPipe({ transform: true, whitelist: true }))
+    findAll(@Query() filters: SearchExpensesDto): Promise<Expenses[]> {
+        return this.expensesService.findAll(filters);
     }
 
     @Get(':id')

src/modules/expenses/dtos/search-expense.dto.ts

@@ -0,0 +1,26 @@
+import { Type } from "class-transformer";
+import { IsDateString, IsInt, IsOptional, IsString } from "class-validator";
+
+export class SearchExpensesDto {
+    @IsOptional()
+    @Type(()=> Number)
+    @IsInt()
+    timesheet_id?: number;
+
+    @IsOptional()
+    @Type(()=> Number)
+    @IsInt()
+    bank_code_id?: number;
+
+    @IsOptional()
+    @IsString()
+    description_contains?: string;
+
+    @IsOptional()
+    @IsDateString()
+    start_date: string;
+
+    @IsOptional()
+    @IsDateString()
+    end_date: string;
+}

src/modules/expenses/dtos/update-expense.dto.ts

@@ -1,4 +1,4 @@
 import { PartialType } from "@nestjs/swagger";
-import { CreateExpenseDto } from "./create-expense";
+import { CreateExpenseDto } from "./create-expense.dto";
 
 export class UpdateExpenseDto extends PartialType(CreateExpenseDto) {}

src/modules/expenses/expenses.module.ts

@@ -1,4 +1,3 @@
-import { PrismaService } from "src/prisma/prisma.service";
 import { ExpensesController } from "./controllers/expenses.controller";
 import { Module } from "@nestjs/common";
 import { ExpensesService } from "./services/expenses.service";

src/modules/expenses/services/expenses.service.ts

@@ -1,9 +1,11 @@
 import { Injectable, NotFoundException } from "@nestjs/common";
 import { PrismaService } from "src/prisma/prisma.service";
-import { CreateExpenseDto } from "../dtos/create-expense";
+import { CreateExpenseDto } from "../dtos/create-expense.dto";
 import { Expenses, ExpensesArchive } from "@prisma/client";
-import { UpdateExpenseDto } from "../dtos/update-expense";
+import { UpdateExpenseDto } from "../dtos/update-expense.dto";
 import { MileageService } from "src/modules/business-logics/services/mileage.service";
+import { SearchExpensesDto } from "../dtos/search-expense.dto";
+import { buildPrismaWhere } from "src/common/shared/build-prisma-where";
 
 @Injectable()
 export class ExpensesService {
@@ -42,10 +44,10 @@ export class ExpensesService {
         })
     }
 
-    findAll(): Promise<Expenses[]> {
-        return this.prisma.expenses.findMany({
-            include: { timesheet: { include: { employee: { include: { user: true } } } } },
-        });
+    async findAll(filters: SearchExpensesDto): Promise<Expenses[]> {
+        const where = buildPrismaWhere(filters);
+        const expenses = await this.prisma.expenses.findMany({ where })
+        return expenses;
     }
 
     async findOne(id: number): Promise<Expenses> {

src/modules/leave-requests/controllers/leave-requests.controller.ts

@@ -1,13 +1,14 @@
-import { Body, Controller, Delete, Get, Param, ParseIntPipe, Patch, Post, UseGuards } from "@nestjs/common";
+import { BadRequestException, Body, Controller, Delete, Get, Param, ParseBoolPipe, ParseEnumPipe, ParseIntPipe, Patch, Post, Query, UseGuards, UsePipes, ValidationPipe } from "@nestjs/common";
 import { LeaveRequestsService } from "../services/leave-requests.service";
 import { CreateLeaveRequestsDto } from "../dtos/create-leave-requests.dto";
 import { LeaveRequests } from "@prisma/client";
 import { UpdateLeaveRequestsDto } from "../dtos/update-leave-requests.dto";
 import { RolesAllowed } from "src/common/decorators/roles.decorators";
-import { Roles as RoleEnum } from '.prisma/client';
+import { LeaveApprovalStatus, Roles as RoleEnum } from '.prisma/client';
 import { ApiBearerAuth, ApiOperation, ApiResponse, ApiTags } from "@nestjs/swagger";
 import { JwtAuthGuard } from "src/modules/authentication/guards/jwt-auth.guard";
 import { LeaveRequestEntity } from "../dtos/swagger-entities/leave-requests.entity";
+import { SearchLeaveRequestsDto } from "../dtos/search-leave-requests.dto";
 
 @ApiTags('Leave Requests')
 @ApiBearerAuth('access-token')
@@ -30,8 +31,9 @@ export class LeaveRequestController {
     @ApiOperation({summary: 'Find all leave request' })
     @ApiResponse({ status: 201, description: 'List of Leave requests found',type: LeaveRequestEntity, isArray: true })
     @ApiResponse({ status: 400, description: 'List of leave request not found' })
-    findAll(): Promise<LeaveRequests[]> {
-        return this.leaveRequetsService.findAll();
+    @UsePipes(new ValidationPipe({transform: true, whitelist: true}))
+    findAll(@Query() filters: SearchLeaveRequestsDto): Promise<(LeaveRequests & {daysRequested:number; cost: number})[]> {
+        return this.leaveRequetsService.findAll(filters);
     }
 
     @Get(':id')
@@ -60,4 +62,14 @@ export class LeaveRequestController {
     remove(@Param('id', ParseIntPipe) id: number): Promise<LeaveRequests> {
         return this.leaveRequetsService.remove(id);
     }
+
+    @Patch(':id/approval')
+    updateApproval( @Param('id', ParseIntPipe) id: number,
+                    @Body('is_approved', ParseBoolPipe) isApproved: boolean): Promise<LeaveRequests> {
+            const approvalStatus = isApproved ? 
+                 LeaveApprovalStatus.APPROVED : LeaveApprovalStatus.DENIED;
+            return this.leaveRequetsService.update(id, { approval_status: approvalStatus });
         }
+
+    }   
+

src/modules/leave-requests/dtos/search-leave-requests.dto.ts

@@ -0,0 +1,27 @@
+import { LeaveApprovalStatus } from "@prisma/client";
+import { Type } from "class-transformer";
+import { IsOptional, IsInt, IsEnum, IsDateString } from "class-validator";
+
+export class SearchLeaveRequestsDto {
+    @IsOptional()
+    @Type(()=> Number)
+    @IsInt()
+    employee_id?: number;
+
+    @IsOptional()
+    @Type(()=> Number)
+    @IsInt()
+    bank_code_id?: number;
+
+    @IsOptional()
+    @IsEnum(LeaveApprovalStatus)
+    approval_status?: LeaveApprovalStatus
+
+    @IsOptional()
+    @IsDateString()
+    start_date?: Date;
+    
+    @IsOptional()
+    @IsDateString()
+    end_date?: Date;
+}

src/modules/leave-requests/services/leave-requests.service.ts

@@ -6,6 +6,8 @@ import { UpdateLeaveRequestsDto } from "../dtos/update-leave-requests.dto";
 import { HolidayService } from "src/modules/business-logics/services/holiday.service";
 import { SickLeaveService } from "src/modules/business-logics/services/sick-leave.service";
 import { VacationService } from "src/modules/business-logics/services/vacation.service";
+import { SearchLeaveRequestsDto } from "../dtos/search-leave-requests.dto";
+import { buildPrismaWhere } from "src/common/shared/build-prisma-where";
 
 @Injectable()
 export class LeaveRequestsService {
@@ -30,8 +32,19 @@ export class LeaveRequestsService {
         });
     }
 
-    async findAll(): Promise<any[]> {
+    async findAll(filters: SearchLeaveRequestsDto): Promise<any[]> {
+        const {start_date, end_date, ...otherFilters } = filters;
+        const where: Record<string, any> = buildPrismaWhere(otherFilters);
+
+        if (start_date) {
+            where.start_date_time = { ...(where.start_date_time ?? {}), gte: new Date(start_date) };
+        }
+        if(end_date) {
+            where.end_date_time = { ...(where.end_date_time ?? {}), lte: new Date(end_date) };
+        }
+        
         const list = await this.prisma.leaveRequests.findMany({
+            where,
             include: { employee: { include: { user: true } },
                        bank_code: true,
             },

src/modules/shifts/controllers/shifts-overview.controller.ts

@@ -8,14 +8,14 @@ export class ShiftsOverviewController {
 
     @Get()
     async getSummary( @Query() query: GetShiftsOverviewDto): Promise<OverviewRow[]> {
-        return this.shiftsValidationService.getSummary(query.periodId);
+        return this.shiftsValidationService.getSummary(query.period_id);
     }
 
     @Get('export.csv')
     @Header('Content-Type', 'text/csv; charset=utf-8')
     @Header('Content-Disposition', 'attachment; filename="shifts-validation.csv"')
     async exportCsv(@Query() query: GetShiftsOverviewDto): Promise<Buffer>{
-        const rows = await this.shiftsValidationService.getSummary(query.periodId);
+        const rows = await this.shiftsValidationService.getSummary(query.period_id);
 
         //CSV Headers
         const header = [

src/modules/shifts/controllers/shifts.controller.ts

@@ -1,14 +1,15 @@
-import { Body, Controller, Delete, Get, Param, ParseBoolPipe, ParseIntPipe, Patch, Post, UseGuards } from "@nestjs/common";
+import { Body, Controller, Delete, Get, Param, ParseBoolPipe, ParseIntPipe, Patch, Post, Query, UseGuards, UsePipes, ValidationPipe } from "@nestjs/common";
 import { ShiftsService } from "../services/shifts.service";
 import { Shifts } from "@prisma/client";
-import { CreateShiftDto } from "../dtos/create-shifts.dto";
-import { UpdateShiftsDto } from "../dtos/update-shifts.dto";
+import { CreateShiftDto } from "../dtos/create-shift.dto";
+import { UpdateShiftsDto } from "../dtos/update-shift.dto";
 import { RolesAllowed } from "src/common/decorators/roles.decorators";
 import { Roles as RoleEnum } from '.prisma/client';
 import { ApiBearerAuth, ApiOperation, ApiResponse, ApiTags } from "@nestjs/swagger";
 import { JwtAuthGuard } from "src/modules/authentication/guards/jwt-auth.guard";
 import { ShiftEntity } from "../dtos/swagger-entities/shift.entity";
 import { ShiftsApprovalService } from "../services/shifts-approval.service";
+import { SearchShiftsDto } from "../dtos/search-shifts.dto";
 
 @ApiTags('Shifts')
 @ApiBearerAuth('access-token')
@@ -34,8 +35,9 @@ export class ShiftsController {
   @ApiOperation({ summary: 'Find all shifts' })
   @ApiResponse({ status: 201, description: 'List of shifts found',type: ShiftEntity, isArray: true })
   @ApiResponse({ status: 400, description: 'List of shifts not found' })
-  findAll(): Promise<Shifts[]> {
-    return this.shiftsService.findAll();
+  @UsePipes(new ValidationPipe({ transform: true, whitelist: true }))
+  findAll(@Query() filters: SearchShiftsDto) {
+    return this.shiftsService.findAll(filters);
   }
 
   @Get(':id')

src/modules/shifts/dtos/get-shifts-overview.dto.ts

@@ -6,5 +6,5 @@ export class GetShiftsOverviewDto {
     @IsInt()
     @Min(1)
     @Max(26)
-    periodId: number;
+    period_id: number;
 }

src/modules/shifts/dtos/search-shifts.dto.ts

@@ -0,0 +1,29 @@
+import { Type } from "class-transformer";
+import { IsDateString, IsInt, IsOptional, IsString } from "class-validator";
+
+export class SearchShiftsDto {
+    @IsOptional()
+    @Type(()=> Number)
+    @IsInt()
+    employee_id?: number;
+
+    @IsOptional()
+    @Type(()=> Number)
+    @IsInt()
+    bank_code_id?: number;
+    
+    @IsOptional()
+    @IsString()
+    description_contains?: string;
+
+    @IsOptional()
+    @IsDateString()
+    end_date?: string;
+
+    @IsOptional()
+    @Type(()=> Number)
+    @IsInt()
+    timesheet_id?: number;
+
+
+}

src/modules/shifts/dtos/update-shift.dto.ts

@@ -1,4 +1,4 @@
 import { PartialType } from "@nestjs/swagger";
-import { CreateShiftDto } from "./create-shifts.dto";
+import { CreateShiftDto } from "./create-shift.dto";
 
 export class UpdateShiftsDto extends PartialType(CreateShiftDto){}

src/modules/shifts/services/shifts-overview.service.ts

@@ -17,13 +17,13 @@ export interface OverviewRow {
 export class ShiftsOverviewService {
     constructor(private readonly prisma: PrismaService) {}
 
-    async getSummary(periodId: number): Promise<OverviewRow[]> {
+    async getSummary(period_id: number): Promise<OverviewRow[]> {
         //fetch pay-period to display
         const period = await this.prisma.payPeriods.findUnique({
-            where: { period_number: periodId }, 
+            where: { period_number: period_id }, 
         });
         if(!period) {
-            throw new NotFoundException(`pay-period ${periodId} not found`);
+            throw new NotFoundException(`pay-period ${period_id} not found`);
         }
         const { start_date, end_date } = period;
 

src/modules/shifts/services/shifts.service.ts

@@ -1,8 +1,10 @@
 import { Injectable, NotFoundException } from "@nestjs/common";
 import { PrismaService } from "src/prisma/prisma.service";
-import { CreateShiftDto } from "../dtos/create-shifts.dto";
+import { CreateShiftDto } from "../dtos/create-shift.dto";
 import { Shifts, ShiftsArchive } from "@prisma/client";
-import { UpdateShiftsDto } from "../dtos/update-shifts.dto";
+import { UpdateShiftsDto } from "../dtos/update-shift.dto";
+import { buildPrismaWhere } from "src/common/shared/build-prisma-where";
+import { SearchShiftsDto } from "../dtos/search-shifts.dto";
 
 @Injectable()
 export class ShiftsService {
@@ -18,10 +20,10 @@ export class ShiftsService {
     });
   }
 
-    findAll(): Promise<Shifts[]> {
-        return this.prisma.shifts.findMany({
-            include: { timesheet: { include: { employee: { include: { user:true } } } } },
-        });
+    async findAll(filters: SearchShiftsDto): Promise <Shifts[]> {
+        const where = buildPrismaWhere(filters);
+        const shifts = await this.prisma.shifts.findMany({ where })
+        return shifts;
     }
 
     async findOne(id: number): Promise<Shifts> {

src/modules/timesheets/controllers/timesheets.controller.ts

@@ -1,4 +1,4 @@
-import { Body, Controller, Delete, Get, Param, ParseBoolPipe, ParseIntPipe, Patch, Post, UseGuards } from '@nestjs/common';
+import { Body, Controller, Delete, Get, Param, ParseBoolPipe, ParseIntPipe, Patch, Post, Query, UseGuards, UsePipes, ValidationPipe } from '@nestjs/common';
 import { TimesheetsService } from '../services/timesheets.service';
 import { CreateTimesheetDto } from '../dtos/create-timesheet.dto';
 import { Timesheets } from '@prisma/client';
@@ -9,6 +9,7 @@ import { ApiBearerAuth, ApiOperation, ApiResponse, ApiTags } from '@nestjs/swagg
 import { JwtAuthGuard } from 'src/modules/authentication/guards/jwt-auth.guard';
 import { TimesheetEntity } from '../dtos/swagger-entities/timesheet.entity';
 import { TimesheetsApprovalService } from '../services/timesheets-approval.service';
+import { SearchTimesheetDto } from '../dtos/search-timesheets.dto';
 
 @ApiTags('Timesheets')
 @ApiBearerAuth('access-token')
@@ -34,8 +35,9 @@ export class TimesheetsController {
     @ApiOperation({ summary: 'Find all timesheets' })
     @ApiResponse({ status: 201, description: 'List of timesheet found', type: TimesheetEntity, isArray: true })
     @ApiResponse({ status: 400, description: 'List of timesheets not found' })
-    findAll(): Promise<Timesheets[]> {
-        return this.timesheetsService.findAll();
+    @UsePipes(new ValidationPipe({transform: true, whitelist: true }))
+    findAll(@Query() filters: SearchTimesheetDto): Promise<any[]> {
+        return this.timesheetsService.findAll(filters);
     }
 
     @Get(':id')

src/modules/timesheets/dtos/search-timesheets.dto.ts

@@ -0,0 +1,20 @@
+import { Type } from "class-transformer";
+import { IsBoolean, IsInt, IsOptional } from "class-validator";
+
+
+export class SearchTimesheetDto {
+    @IsOptional()
+    @Type(() => Number)
+    @IsInt()
+    timesheet_id: number;
+
+    @IsOptional()
+    @Type(()=> Number)
+    @IsInt()
+    employee_id: number;
+
+    @IsOptional()
+    @Type(()=> Boolean)
+    @IsBoolean()
+    is_approved: boolean;    
+}

src/modules/timesheets/services/timesheets.service.ts

@@ -5,6 +5,8 @@ import { Timesheets, TimesheetsArchive } from '@prisma/client';
 import { UpdateTimesheetDto } from '../dtos/update-timesheet.dto';
 import { OvertimeService } from 'src/modules/business-logics/services/overtime.service';
 import { computeHours } from 'src/common/utils/date-utils';
+import { buildPrismaWhere } from 'src/common/shared/build-prisma-where';
+import { SearchTimesheetDto } from '../dtos/search-timesheets.dto';
 
 @Injectable()
 export class TimesheetsService {
@@ -24,32 +26,38 @@ export class TimesheetsService {
         });
     }
 
-    async findAll(): Promise<any[]> {
-        const list = await this.prisma.timesheets.findMany({
-            include: { 
+    async findAll(filters: SearchTimesheetDto): Promise<any[]> {
+        const where = buildPrismaWhere(filters);
+
+        //fetchs lists of shifts and expenses for a selected timesheet
+        const rawlist = await this.prisma.timesheets.findMany({
+            where, include: {
                         shift: { include: {bank_code: true } },
                       expense: { include: { bank_code: true } },
                      employee: { include: { user : true } },
             },
         });
 
-        return Promise.all(
-            list.map(async timesheet => {
-                const detailedShifts = timesheet.shift.map(s => {
-                    const hours         = computeHours(s.start_time, s.end_time,5);
-                    const regularHours  = Math.min(8, hours);
-                    const dailyOvertime = this.overtime.getDailyOvertimeHours(s.start_time, s.end_time);
-                    const payRegular    = regularHours * s.bank_code.modifier;
-                    const payOvertime   = this.overtime.calculateOvertimePay(dailyOvertime, s.bank_code.modifier);
-                    return { ...s, hours, payRegular, payOvertime };
+        const detailedlist = await Promise.all(
+            rawlist.map(async timesheet => {
+                //detailed shifts
+                const detailedShifts = timesheet.shift.map(shift => {
+                    const totalhours    = computeHours(shift.start_time, shift.end_time,5);
+                    const regularHours  = Math.min(8, totalhours);
+                    const dailyOvertime = this.overtime.getDailyOvertimeHours(shift.start_time, shift.end_time);
+                    const payRegular    = regularHours * shift.bank_code.modifier;
+                    const payOvertime   = this.overtime.calculateOvertimePay(dailyOvertime, shift.bank_code.modifier);
+                    return { ...shift, totalhours, payRegular, payOvertime };
                 });
+                //calculate overtime weekly
                 const weeklyOvertimeHours = detailedShifts.length
                             ? await this.overtime.getWeeklyOvertimeHours(
                                                 timesheet.employee_id,
                                                 timesheet.shift[0].date): 0;
                 return { ...timesheet, shift: detailedShifts, weeklyOvertimeHours };
-            })
+            }),
         ); 
+        return detailedlist;
     }
 
     async findOne(id: number): Promise<any> {