Update
This commit is contained in:
Aditya Siregar
@@ -0,0 +1,198 @@
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package service
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import (
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"apskel-pos-be/internal/repository"
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"context"
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"fmt"
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"path/filepath"
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"strings"
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"time"
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"apskel-pos-be/internal/models"
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"apskel-pos-be/internal/processor"
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"github.com/google/uuid"
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)
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type ReportService interface {
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// Returns (publicURL, fileName, error)
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GenerateDailyTransactionPDF(ctx context.Context, organizationID string, outletID string, reportDate *time.Time, generatedBy string) (string, string, error)
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}
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type ReportServiceImpl struct {
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analyticsService AnalyticsService
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organizationRepo *repository.OrganizationRepositoryImpl
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outletRepo *repository.OutletRepositoryImpl
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fileClient processor.FileClient
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}
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func NewReportService(analyticsService *AnalyticsServiceImpl, organizationRepo *repository.OrganizationRepositoryImpl, outletRepo *repository.OutletRepositoryImpl, fileClient processor.FileClient) *ReportServiceImpl {
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return &ReportServiceImpl{
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analyticsService: analyticsService,
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organizationRepo: organizationRepo,
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outletRepo: outletRepo,
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fileClient: fileClient,
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}
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}
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// reportTemplateData holds the data passed to the HTML template
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type reportTemplateData struct {
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OrganizationName string
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OutletName string
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ReportDate string
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StartDate string
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EndDate string
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GeneratedBy string
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PrintTime string
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Summary reportSummary
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Items []reportItem
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}
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type reportSummary struct {
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TotalTransactions int64
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TotalItems int64
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GrossSales string
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Discount string
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Tax string
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NetSales string
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COGS string
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GrossProfit string
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GrossMarginPercent string
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}
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type reportItem struct {
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Name string
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Quantity int64
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GrossSales string
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Discount string
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NetSales string
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COGS string
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GrossProfit string
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}
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func (s *ReportServiceImpl) GenerateDailyTransactionPDF(ctx context.Context, organizationID string, outletID string, reportDate *time.Time, generatedBy string) (string, string, error) {
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// Parse IDs
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orgID, err := uuid.Parse(organizationID)
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if err != nil {
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return "", "", fmt.Errorf("invalid organization id: %w", err)
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}
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outID, err := uuid.Parse(outletID)
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if err != nil {
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return "", "", fmt.Errorf("invalid outlet id: %w", err)
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}
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// Resolve organization and outlet names
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org, err := s.organizationRepo.GetByID(ctx, orgID)
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if err != nil {
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return "", "", fmt.Errorf("organization not found: %w", err)
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}
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outlet, err := s.outletRepo.GetByID(ctx, outID)
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if err != nil {
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return "", "", fmt.Errorf("outlet not found: %w", err)
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}
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// Determine timezone (fallback to system local if not available)
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tzName := "Asia/Jakarta"
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if outlet.Timezone != nil && *outlet.Timezone != "" {
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tzName = *outlet.Timezone
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}
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loc, locErr := time.LoadLocation(tzName)
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if locErr != nil || loc == nil {
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loc = time.Local
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}
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// Compute day range in the chosen location
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var day time.Time
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if reportDate != nil {
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t := reportDate.UTC()
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day = time.Date(t.Year(), t.Month(), t.Day(), 0, 0, 0, 0, loc)
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} else {
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now := time.Now().In(loc)
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day = time.Date(now.Year(), now.Month(), now.Day(), 0, 0, 0, 0, loc)
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}
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start := day
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end := day.Add(24*time.Hour - time.Nanosecond)
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// Build requests
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salesReq := &models.SalesAnalyticsRequest{OrganizationID: orgID, OutletID: &outID, DateFrom: start, DateTo: end, GroupBy: "day"}
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plReq := &models.ProfitLossAnalyticsRequest{OrganizationID: orgID, OutletID: &outID, DateFrom: start, DateTo: end, GroupBy: "day"}
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// Call services
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sales, err := s.analyticsService.GetSalesAnalytics(ctx, salesReq)
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if err != nil {
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return "", "", fmt.Errorf("get sales analytics: %w", err)
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}
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pl, err := s.analyticsService.GetProfitLossAnalytics(ctx, plReq)
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if err != nil {
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return "", "", fmt.Errorf("get profit/loss analytics: %w", err)
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}
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// Compose template data
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data := reportTemplateData{
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OrganizationName: org.Name,
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OutletName: outlet.Name,
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ReportDate: day.Format("02/01/2006"),
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StartDate: start.Format("02/01/2006 15:04"),
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EndDate: end.Format("02/01/2006 15:04"),
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GeneratedBy: generatedBy,
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PrintTime: time.Now().Format("02/01/2006 15:04:05"),
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Summary: reportSummary{
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TotalTransactions: pl.Summary.TotalOrders,
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TotalItems: sales.Summary.TotalItems,
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GrossSales: formatCurrency(pl.Summary.TotalRevenue),
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Discount: formatCurrency(pl.Summary.TotalDiscount),
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Tax: formatCurrency(pl.Summary.TotalTax),
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NetSales: formatCurrency(sales.Summary.NetSales),
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COGS: formatCurrency(pl.Summary.TotalCost),
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GrossProfit: formatCurrency(pl.Summary.GrossProfit),
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GrossMarginPercent: fmt.Sprintf("%.2f", pl.Summary.GrossProfitMargin),
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},
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}
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// Items by product
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items := make([]reportItem, 0, len(pl.ProductData))
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for _, p := range pl.ProductData {
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items = append(items, reportItem{
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Name: p.ProductName,
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Quantity: p.QuantitySold,
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GrossSales: formatCurrency(p.Revenue),
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Discount: formatCurrency(0),
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NetSales: formatCurrency(p.Revenue),
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COGS: formatCurrency(p.Cost),
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GrossProfit: formatCurrency(p.GrossProfit),
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})
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}
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data.Items = items
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// Render to PDF
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templatePath := filepath.Join("templates", "daily_transaction.html")
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pdfBytes, err := renderTemplateToPDF(templatePath, data)
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if err != nil {
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return "", "", fmt.Errorf("render pdf: %w", err)
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}
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// Upload to bucket
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safeOutlet := outID.String()
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safeOrg := orgID.String()
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// Clean outlet name for filename (remove spaces and special characters)
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cleanOutletName := strings.ReplaceAll(outlet.Name, " ", "-")
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cleanOutletName = strings.ReplaceAll(cleanOutletName, "/", "-")
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cleanOutletName = strings.ReplaceAll(cleanOutletName, "\\", "-")
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cleanOutletName = strings.ReplaceAll(cleanOutletName, ":", "-")
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cleanOutletName = strings.ReplaceAll(cleanOutletName, "*", "-")
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cleanOutletName = strings.ReplaceAll(cleanOutletName, "?", "-")
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cleanOutletName = strings.ReplaceAll(cleanOutletName, "\"", "-")
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cleanOutletName = strings.ReplaceAll(cleanOutletName, "<", "-")
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cleanOutletName = strings.ReplaceAll(cleanOutletName, ">", "-")
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cleanOutletName = strings.ReplaceAll(cleanOutletName, "|", "-")
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fileName := fmt.Sprintf("laporan-transaksi-harian-%s-%s-%s.pdf", cleanOutletName, day.Format("2006-01-02"), time.Now().Format("20060102-150405"))
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objectKey := fmt.Sprintf("/reports/%s/%s/%s", safeOrg, safeOutlet, fileName)
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publicURL, err := s.fileClient.UploadFile(ctx, objectKey, pdfBytes)
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if err != nil {
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return "", "", fmt.Errorf("upload pdf: %w", err)
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}
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return publicURL, fileName, nil
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}
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