change price logic on the ,rule engine ui, auto generate the contrat

apps/edr-freight-api/src/modules/overview/overview.service.ts

@@ -0,0 +1,210 @@
+import { Injectable } from '@nestjs/common';
+
+import {
+  BOOKING_LIST_TABS,
+  mapStatusCountsToTabs,
+} from '../bookings/booking-list-tabs.config';
+import type { OverviewRangeQuery } from './dto/overview-query.dto';
+import type { OverviewResponseDto } from './dto/overview-response.dto';
+import type {
+  OverviewBillingTabDto,
+  OverviewBookingsTabDto,
+  OverviewCustomersTabDto,
+  OverviewOperationsTabDto,
+  OverviewStaffTabDto,
+} from './dto/overview-tab-response.dto';
+import { OVERVIEW_RANGE_DAYS } from './overview.constants';
+import { OverviewRepository } from './overview.repository';
+
+@Injectable()
+export class OverviewService {
+  constructor(private readonly overviewRepository: OverviewRepository) {}
+
+  private mapStatusCounts(statusCounts: Record<string, number>) {
+    const pipelineTabs = mapStatusCountsToTabs(statusCounts);
+    const bookingsByPipeline = BOOKING_LIST_TABS.filter(
+      (tab) => tab.key !== 'all',
+    ).map((tab) => ({
+      stage: tab.key,
+      count: pipelineTabs[tab.key],
+    }));
+
+    const bookingsByStatus = Object.entries(statusCounts)
+      .map(([status, count]) => ({ status, count }))
+      .sort((a, b) => b.count - a.count);
+
+    return { bookingsByPipeline, bookingsByStatus };
+  }
+
+  async getDashboard(range: OverviewRangeQuery = '30d'): Promise<OverviewResponseDto> {
+    const days = OVERVIEW_RANGE_DAYS[range];
+
+    const [
+      bookingKpis,
+      operationsKpis,
+      customerKpis,
+      billingKpis,
+      staffKpis,
+      bookingTrend,
+      statusCounts,
+      paymentTrend,
+      recentBookings,
+    ] = await Promise.all([
+      this.overviewRepository.getBookingKpis(),
+      this.overviewRepository.getOperationsKpis(),
+      this.overviewRepository.getCustomerKpis(),
+      this.overviewRepository.getBillingKpis(),
+      this.overviewRepository.getStaffKpis(),
+      this.overviewRepository.getBookingTrend(days),
+      this.overviewRepository.getStatusCounts(),
+      this.overviewRepository.getPaymentTrend(days),
+      this.overviewRepository.getRecentBookings(8),
+    ]);
+
+    const { bookingsByPipeline, bookingsByStatus } =
+      this.mapStatusCounts(statusCounts);
+
+    return {
+      kpis: {
+        bookings: bookingKpis,
+        operations: operationsKpis,
+        customers: customerKpis,
+        billing: billingKpis,
+        staff: staffKpis,
+      },
+      bookingTrend,
+      bookingsByStatus,
+      bookingsByPipeline,
+      paymentTrend,
+      recentBookings: recentBookings.map((row) => ({
+        ...row,
+        createdAt: row.createdAt.toISOString(),
+      })),
+      generatedAt: new Date().toISOString(),
+    };
+  }
+
+  async getBookingsTab(range: OverviewRangeQuery = '30d'): Promise<OverviewBookingsTabDto> {
+    const days = OVERVIEW_RANGE_DAYS[range];
+
+    const [
+      kpis,
+      bookingTrend,
+      statusCounts,
+      bookingsByFreightType,
+      bookingsByCurrency,
+      recentBookings,
+    ] = await Promise.all([
+      this.overviewRepository.getBookingKpis(),
+      this.overviewRepository.getBookingTrend(days),
+      this.overviewRepository.getStatusCounts(),
+      this.overviewRepository.getBookingsByFreightType(),
+      this.overviewRepository.getBookingsByCurrency(),
+      this.overviewRepository.getRecentBookings(8),
+    ]);
+
+    const { bookingsByPipeline, bookingsByStatus } =
+      this.mapStatusCounts(statusCounts);
+
+    return {
+      kpis,
+      bookingTrend,
+      bookingsByStatus,
+      bookingsByPipeline,
+      bookingsByFreightType,
+      bookingsByCurrency,
+      recentBookings: recentBookings.map((row) => ({
+        ...row,
+        createdAt: row.createdAt.toISOString(),
+      })),
+      generatedAt: new Date().toISOString(),
+    };
+  }
+
+  async getBillingTab(range: OverviewRangeQuery = '30d'): Promise<OverviewBillingTabDto> {
+    const days = OVERVIEW_RANGE_DAYS[range];
+
+    const [kpis, paymentTrend, paymentsByStatus, paymentsByMethod, revenueByCurrency] =
+      await Promise.all([
+        this.overviewRepository.getBillingKpis(),
+        this.overviewRepository.getPaymentTrend(days),
+        this.overviewRepository.getPaymentsByStatus(),
+        this.overviewRepository.getPaymentsByMethod(),
+        this.overviewRepository.getRevenueByCurrency(),
+      ]);
+
+    return {
+      kpis,
+      paymentTrend,
+      paymentsByStatus,
+      paymentsByMethod,
+      revenueByCurrency,
+      generatedAt: new Date().toISOString(),
+    };
+  }
+
+  async getOperationsTab(): Promise<OverviewOperationsTabDto> {
+    const [
+      kpis,
+      trainStatusBreakdown,
+      wagonStatusBreakdown,
+      containerStatusBreakdown,
+      cargoStatusBreakdown,
+    ] = await Promise.all([
+      this.overviewRepository.getOperationsKpis(),
+      this.overviewRepository.getTrainStatusBreakdown(),
+      this.overviewRepository.getWagonStatusBreakdown(),
+      this.overviewRepository.getContainerStatusBreakdown(),
+      this.overviewRepository.getCargoStatusBreakdown(),
+    ]);
+
+    return {
+      kpis,
+      trainStatusBreakdown,
+      wagonStatusBreakdown,
+      containerStatusBreakdown,
+      cargoStatusBreakdown,
+      generatedAt: new Date().toISOString(),
+    };
+  }
+
+  async getCustomersTab(range: OverviewRangeQuery = '30d'): Promise<OverviewCustomersTabDto> {
+    const days = OVERVIEW_RANGE_DAYS[range];
+
+    const [kpis, customerGrowthTrend, customersByType, topCustomersByBookings] =
+      await Promise.all([
+        this.overviewRepository.getCustomerKpis(),
+        this.overviewRepository.getCustomerGrowthTrend(days),
+        this.overviewRepository.getCustomersByType(),
+        this.overviewRepository.getTopCustomersByBookings(8),
+      ]);
+
+    return {
+      kpis,
+      customerGrowthTrend,
+      customersByType,
+      topCustomersByBookings,
+      generatedAt: new Date().toISOString(),
+    };
+  }
+
+  async getStaffTab(range: OverviewRangeQuery = '30d'): Promise<OverviewStaffTabDto> {
+    const days = OVERVIEW_RANGE_DAYS[range];
+
+    const [kpis, usersByStatus, employeeGrowthTrend, activeUsersBreakdown] =
+      await Promise.all([
+        this.overviewRepository.getStaffKpis(),
+        this.overviewRepository.getUsersByStatus(),
+        this.overviewRepository.getEmployeeGrowthTrend(days),
+        this.overviewRepository.getActiveUsersBreakdown(),
+      ]);
+
+    return {
+      kpis,
+      usersByStatus,
+      employeeGrowthTrend,
+      activeUsersBreakdown,
+      generatedAt: new Date().toISOString(),
+    };
+  }
+}