feat(business-logic): implementation of business-logics services into their respective modules.

src/app.module.ts

@@ -17,25 +17,27 @@ import { PayperiodsModule } from './modules/pay-periods/pay-periods.module';
 import { ScheduleModule } from '@nestjs/schedule';
 import { ArchivalModule } from './modules/archival/archival.module';
 import { BankCodesModule } from './modules/bank-codes/bank-codes.module';
-import { OvertimeService } from './business-logic/overtime.service';
+import { OvertimeService } from './business-logics/services/overtime.service';
+import { BusinessLogicsModule } from './business-logics/business-logics.module';
 
 @Module({
   imports: [
       ScheduleModule.forRoot(),
-      BankCodesModule,
       ArchivalModule,
-      PrismaModule,
-      HealthModule,
-      UsersModule,
-      OauthAccessTokensModule,
+      AuthenticationModule,
+      BankCodesModule,
+      BusinessLogicsModule,
       CustomersModule,
       EmployeesModule,
-      LeaveRequestsModule,
       ExpensesModule,
+      HealthModule,
+      LeaveRequestsModule,
+      OauthAccessTokensModule,
+      PayperiodsModule,
+      PrismaModule,
       ShiftsModule,
       TimesheetsModule,
-      AuthenticationModule,
-      PayperiodsModule,
+      UsersModule,
     ],
   controllers: [AppController, HealthController],
   providers: [AppService, OvertimeService],

src/business-logics/business-logics.module.ts

@@ -0,0 +1,32 @@
+import { Module } from "@nestjs/common";
+import { PrismaService } from "src/prisma/prisma.service";
+//import { AfterHoursService } from "./services/after-hours.service";
+import { HolidayService } from "./services/holiday.service";
+import { OvertimeService } from "./services/overtime.service";
+import { SickLeaveService } from "./services/sick-leave.service";
+import { VacationService } from "./services/vacation.service";
+import { MileageService } from "./services/mileage.service";
+
+
+//AfterHours is not used, need to clarify infos before implementing into shifts.service
+@Module({
+    providers: [
+        PrismaService,
+        //AfterHoursService,
+        HolidayService,
+        MileageService,
+        OvertimeService,
+        SickLeaveService,
+        VacationService
+    ],
+    exports: [
+        //AfterHoursService,
+        HolidayService,
+        MileageService,
+        OvertimeService,
+        SickLeaveService,
+        VacationService,
+    ],
+})
+
+export class BusinessLogicsModule {}

src/business-logics/services/after-hours.service.ts

@@ -0,0 +1,79 @@
+import { BadRequestException, Injectable, Logger } from "@nestjs/common";
+import { PrismaService } from "../../prisma/prisma.service";
+
+
+//THIS SERVICE IS NOT USED RULES TO BE DETERMINED WITH MIKE/HR/ACCOUNTING
+@Injectable()
+export class AfterHoursService {
+    private readonly logger = new Logger(AfterHoursService.name);
+    private static readonly BUSINESS_START = 7;
+    private static readonly BUSINESS_END = 18;
+    private static readonly ROUND_MINUTES = 15;
+
+    constructor(private readonly prisma: PrismaService) {}
+
+
+    private getPreBusinessMinutes(start: Date, end: Date): number {
+        const bizStart = new Date(start);
+        bizStart.setHours(AfterHoursService.BUSINESS_START, 0,0,0);
+
+        if (end>= start || start >= bizStart) {
+            return 0;
+        }
+
+        const segmentEnd = end < bizStart ? end : bizStart;
+        const minutes = (segmentEnd.getTime() - start.getTime()) / 60000;
+
+        this.logger.debug(`getPreBusinessMintutes -> ${minutes.toFixed(1)}min`);
+        return minutes;
+
+    }
+
+    private getPostBusinessMinutes(start: Date, end: Date): number {
+        const bizEnd = new Date(start);
+        bizEnd.setHours(AfterHoursService.BUSINESS_END,0,0,0);
+
+        if( end <= bizEnd ) {
+            return 0;
+        }
+
+        const segmentStart = start > bizEnd ? start : bizEnd;
+        const minutes = (end.getTime() - segmentStart.getTime()) / 60000;
+
+        this.logger.debug(`getPostBusinessMintutes -> ${minutes.toFixed(1)}min`);
+        return minutes;
+
+    }
+
+    private roundToNearestQUarterMinute(minutes: number): number {
+        const rounded = Math.round(minutes / AfterHoursService.ROUND_MINUTES)
+                        * AfterHoursService.ROUND_MINUTES;
+        this.logger.debug(`roundToNearestQuarterMinute -> raw=${minutes.toFixed(1)}min, rounded= ${rounded}min`);
+        return rounded;
+    }
+
+    public computeAfterHours(start: Date, end:Date): number {
+        if(end.getTime() <= start.getTime()) {
+            throw new BadRequestException('The end cannot be before the starting of the shift');
+        }
+
+        if (start.toDateString() !== end.toDateString()) {
+            throw new BadRequestException('you cannot enter a shift that start in a day and end in the next' +
+                 'You must create 2 instances, one on the first day and the second during the next day.');
+        }
+
+        const preMin = this.getPreBusinessMinutes(start, end);
+        const postMin = this.getPostBusinessMinutes(start, end);
+        const rawAftermin = preMin + postMin;
+
+        const roundedMin = this.roundToNearestQUarterMinute(rawAftermin);
+
+        const hours = roundedMin / 60;
+        const result = parseFloat(hours.toFixed(2));
+
+        this.logger.debug(`computeAfterHours -> rawAfterMin= ${rawAftermin.toFixed(1)}min, +
+                         rounded = ${roundedMin}min, hours = ${result.toFixed(2)}`);
+        return result;
+    }
+}
+

src/business-logics/services/holiday.service.ts

@@ -1,5 +1,5 @@
 import { Injectable, Logger } from "@nestjs/common";
-import { PrismaService } from "src/prisma/prisma.service";
+import { PrismaService } from "../../prisma/prisma.service";
 
 @Injectable()
 export class HolidayService {

src/business-logics/services/mileage.service.ts

@@ -0,0 +1,36 @@
+import { BadRequestException, Injectable, Logger } from "@nestjs/common";
+import { PrismaService } from "../../prisma/prisma.service";
+import { Decimal } from "@prisma/client/runtime/library";
+
+@Injectable()
+export class MileageService {
+    private readonly logger = new Logger(MileageService.name);
+
+    constructor(private readonly prisma: PrismaService) {}
+
+    public async calculateReimbursement(amount: number, bankCodeId: number): Promise<number> {
+        if(amount < 0) {
+            throw new BadRequestException(`The amount most be higher than 0`);
+        }
+
+        //fetch modifier
+        const bankCode = await this.prisma.bankCodes.findUnique({
+            where: { id: bankCodeId },
+            select: { modifier: true, type: true },
+        });
+
+        if(!bankCode) {
+            throw new BadRequestException(`bank_code ${bankCodeId} not found`);
+        }
+        if(bankCode.type !== 'mileage') {
+            this.logger.warn(`bank_code ${bankCodeId} of type ${bankCode.type} is used for mileage`)
+        }
+
+        //calculate total amount to reimburs
+        const reimboursement = amount * bankCode.modifier;
+        const result = parseFloat(reimboursement.toFixed(2));
+        this.logger.debug(`calculateReimbursement -> amount= ${amount}, modifier= ${bankCode.modifier}, total= ${result}`);
+        return result;
+    }
+    
+}

src/business-logics/services/overtime.service.ts

@@ -1,5 +1,5 @@
 import { Injectable, Logger } from '@nestjs/common';
-import { PrismaService } from 'src/prisma/prisma.service';
+import { PrismaService } from '../../prisma/prisma.service';
 
 @Injectable()
 export class OvertimeService {

src/business-logics/services/sick-leave.service.ts

@@ -1,5 +1,5 @@
 import { Injectable, Logger } from "@nestjs/common";
-import { PrismaService } from "src/prisma/prisma.service";
+import { PrismaService } from "../../prisma/prisma.service";
 
 @Injectable()
 export class SickLeaveService {

src/business-logics/services/vacation.service.ts

@@ -1,12 +1,12 @@
 import { Injectable, Logger, NotFoundException } from "@nestjs/common";
-import { PrismaService } from "src/prisma/prisma.service";
+import { PrismaService } from "../../prisma/prisma.service";
 
 @Injectable()
 export class VacationService {
     constructor(private readonly prisma: PrismaService) {}
-
     private readonly logger = new Logger(VacationService.name);
-/**
+
+  /**
    * Calculate the ammount allowed for vacation days.
    *
    * @param employeeId   employee ID

src/modules/bank-codes/bank-codes.module.ts

@@ -1,5 +1,4 @@
 import { Module } from "@nestjs/common";
-
 import { PrismaService } from "src/prisma/prisma.service";
 import { BankCodesControllers } from "./controllers/bank-codes.controller";
 import { BankCodesService } from "./services/bank-codes.services";

src/modules/expenses/expenses.module.ts

@@ -2,10 +2,12 @@ import { PrismaService } from "src/prisma/prisma.service";
 import { ExpensesController } from "./controllers/expenses.controller";
 import { Module } from "@nestjs/common";
 import { ExpensesService } from "./services/expenses.service";
+import { BusinessLogicsModule } from "src/business-logics/business-logics.module";
 
 @Module({
+    imports: [BusinessLogicsModule],
     controllers: [ExpensesController],
-    providers: [ExpensesService, PrismaService],
+    providers: [ExpensesService],
     exports: [ ExpensesService ],
 })
 

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

@@ -3,48 +3,55 @@ import { PrismaService } from "src/prisma/prisma.service";
 import { CreateExpenseDto } from "../dtos/create-expense";
 import { Expenses, ExpensesArchive } from "@prisma/client";
 import { UpdateExpenseDto } from "../dtos/update-expense";
+import { MileageService } from "src/business-logics/services/mileage.service";
 
 @Injectable()
 export class ExpensesService {
-    constructor(private readonly prisma: PrismaService) {}
+    constructor(
+        private readonly prisma: PrismaService,
+        private readonly mileageService: MileageService,
+    ) {}
     
     async create(dto: CreateExpenseDto): Promise<Expenses> {
-        const { timesheet_id, bank_code_id, date, amount,
+        const { timesheet_id, bank_code_id, date, amount:rawAmount,
             description, is_approved,supervisor_comment} = dto;
-        return this.prisma.expenses.create({
-            data: { timesheet_id, bank_code_id,date,amount,description,is_approved,supervisor_comment},
-            include: {
-                timesheet: {
-                  include: {
-                    employee: { include: { user: true } },
-                  },
-                },
-                bank_code: true,
-            },
+
+
+        //fetches type and modifier
+        const bankCode = await this.prisma.bankCodes.findUnique({
+            where: { id: bank_code_id },
+            select: { type: true, modifier: true },
         });
+        if(!bankCode) {
+            throw new NotFoundException(`bank_code #${bank_code_id} not found`)
+        }
+
+        //if mileage -> service, otherwise the ratio is amount:1
+        let finalAmount: number;
+        if(bankCode.type === 'mileage') {
+            finalAmount = await this.mileageService.calculateReimbursement(rawAmount, bank_code_id);
+        }else {
+            finalAmount = parseFloat( (rawAmount * bankCode.modifier).toFixed(2));
+        }
+
+        return this.prisma.expenses.create({
+            data: { timesheet_id, bank_code_id, date, amount: finalAmount, description, is_approved, supervisor_comment},
+            include: { timesheet: { include: { employee: { include: { user: true }}}},
+            bank_code: true,
+            },
+        })
     }
 
     findAll(): Promise<Expenses[]> {
         return this.prisma.expenses.findMany({
-            include: {
-                timesheet: {
-                    include: {
-                        employee: { include: { user: true } },
-                    },
-                },
-            },
+            include: { timesheet: { include: { employee: { include: { user: true } } } } },
         });
     }
 
     async findOne(id: number): Promise<Expenses> {
         const expense = await this.prisma.expenses.findUnique({
             where: { id },
-            include: {
-                timesheet: {
-                    include: {
-                        employee: { include: { user:true } },
-                    },
-                },
+            include: { timesheet: { include: { employee: { include: { user:true } } } },
             bank_code: true,
             },
         });
@@ -69,14 +76,7 @@ export class ExpensesService {
                 ...(is_approved !== undefined && { is_approved }),
                 ...(supervisor_comment !== undefined && { supervisor_comment }),
             },
-            include: {
-                timesheet: {
-                    include: {
-                        employee: {
-                            include: { user: true }
-                        },
-                    },
-                },
+            include: { timesheet: { include: { employee: { include: { user: true } } } },
             bank_code: true,
             },
         });

src/modules/leave-requests/leave-requests.module.ts

@@ -1,21 +1,13 @@
-import { PrismaService } from "src/prisma/prisma.service";
 import { LeaveRequestController } from "./controllers/leave-requests.controller";
 import { LeaveRequestsService } from "./services/leave-requests.service";
 import { Module } from "@nestjs/common";
-import { HolidayService } from "src/business-logic/holiday.service";
-import { VacationService } from "src/business-logic/vacation.service";
-import { SickLeaveService } from "src/business-logic/sick-leave.service";
+import { BusinessLogicsModule } from "src/business-logics/business-logics.module";
 
 @Module({
+    imports: [BusinessLogicsModule],
     controllers: [LeaveRequestController],
-    providers: [ 
-        LeaveRequestsService,
-        PrismaService,
-        HolidayService,
-        VacationService,
-        SickLeaveService,
-    ],
-    exports: [ LeaveRequestsService],
+    providers: [LeaveRequestsService],
+    exports: [LeaveRequestsService],
 })
 
 export class LeaveRequestsModule {}

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

@@ -3,9 +3,9 @@ import { PrismaService } from "src/prisma/prisma.service";
 import { CreateLeaveRequestsDto } from "../dtos/create-leave-requests.dto";
 import { LeaveRequests, LeaveRequestsArchive } from "@prisma/client";
 import { UpdateLeaveRequestsDto } from "../dtos/update-leave-requests.dto";
-import { HolidayService } from "src/business-logic/holiday.service";
-import { VacationService } from "src/business-logic/vacation.service";
-import { SickLeaveService } from "src/business-logic/sick-leave.service";
+import { HolidayService } from "src/business-logics/services/holiday.service";
+import { SickLeaveService } from "src/business-logics/services/sick-leave.service";
+import { VacationService } from "src/business-logics/services/vacation.service";
 
 @Injectable()
 export class LeaveRequestsService {

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

@@ -12,12 +12,7 @@ export class ShiftsService {
     const { timesheet_id, bank_code_id, date, start_time, end_time } = dto;
     return this.prisma.shifts.create({
       data: { timesheet_id, bank_code_id, date, start_time, end_time },
-      include: {
-        timesheet: {
-          include: {
-            employee: { include: { user: true } },
-          },
-        },
+      include: { timesheet: { include: { employee: { include: { user: true } } } },
         bank_code: true,
       },
     });
@@ -25,29 +20,14 @@ export class ShiftsService {
 
     findAll(): Promise<Shifts[]> {
         return this.prisma.shifts.findMany({
-            include: {
-                timesheet: {
-                  include: {
-                        employee: {
-                         include: { user:true }
-                    },
-                },
-            },
-          },
+            include: { timesheet: { include: { employee: { include: { user:true } } } } },
         });
     }
 
     async findOne(id: number): Promise<Shifts> {
         const shift = await this.prisma.shifts.findUnique({
             where: { id },
-            include: {
-                timesheet: {
-                  include: {
-                      employee: {
-                       include: { user: true }
-                        },
-                    },
-                },
+            include: { timesheet: { include: { employee: { include: { user: true } } } },
             bank_code: true,
             },
         });
@@ -69,14 +49,7 @@ export class ShiftsService {
                 ...(start_time !== undefined && { start_time }),
                 ...(end_time !== undefined && { end_time }),
             },
-            include: {
-                timesheet: {
-                    include: {
-                        employee: {
-                            include: { user: true }
-                        },
-                    },
-                },
+            include: { timesheet: { include: { employee: { include: { user: true } } } },
             bank_code: true,
             },
         });

src/modules/shifts/shifts.module.ts

@@ -1,11 +1,12 @@
 import { Module } from '@nestjs/common';
 import { ShiftsController } from './controllers/shifts.controller';
 import { ShiftsService } from './services/shifts.service';
-import { PrismaService } from 'src/prisma/prisma.service';
+import { BusinessLogicsModule } from 'src/business-logics/business-logics.module';
 
 @Module({
+  imports: [BusinessLogicsModule],
   controllers: [ShiftsController],
-  providers: [ShiftsService, PrismaService],
+  providers: [ShiftsService],
   exports: [ShiftsService],
 })
 export class ShiftsModule {}

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

@@ -3,7 +3,7 @@ import { PrismaService } from 'src/prisma/prisma.service';
 import { CreateTimesheetDto } from '../dtos/create-timesheet.dto';
 import { Timesheets, TimesheetsArchive } from '@prisma/client';
 import { UpdateTimesheetDto } from '../dtos/update-timesheet.dto';
-import { OvertimeService } from 'src/business-logic/overtime.service';
+import { OvertimeService } from 'src/business-logics/services/overtime.service';
 
 @Injectable()
 export class TimesheetsService {

src/modules/timesheets/timesheets.module.ts

@@ -1,14 +1,12 @@
 import { Module } from '@nestjs/common';
 import { TimesheetsController } from './controllers/timesheets.controller';
 import { TimesheetsService } from './services/timesheets.service';
-import { OvertimeService } from 'src/business-logic/overtime.service';
+import { BusinessLogicsModule } from 'src/business-logics/business-logics.module';
 
 @Module({
+  imports: [BusinessLogicsModule],
   controllers: [TimesheetsController],
-  providers: [
-    TimesheetsService,
-    OvertimeService,
-  ],
+  providers: [ TimesheetsService ],
   exports: [TimesheetsService],
 })
 export class TimesheetsModule {}