Merge branch 'feat/monitoring-saldo' into 'development'

add api monitoring saldo customer

See merge request mbugroup/lti-api!544

internal/modules/repports/controllers/repport.controller.go

@@ -392,6 +392,13 @@ func (c *RepportController) GetDebtSupplier(ctx *fiber.Ctx) error {
 		return err
 	}
 
+	if isDebtSupplierExcelExportRequest(ctx) {
+		return exportDebtSupplierExcel(ctx, result)
+	}
+	if isDebtSupplierExcelAllExportRequest(ctx) {
+		return exportDebtSupplierExcelAll(ctx, result)
+	}
+
 	supplierIDs = query.SupplierIDs
 	if supplierIDs == nil {
 		supplierIDs = []int64{}
@@ -478,6 +485,13 @@ func (c *RepportController) GetCustomerPayment(ctx *fiber.Ctx) error {
 		return err
 	}
 
+	if isCustomerPaymentExcelExportRequest(ctx) {
+		return exportCustomerPaymentExcel(ctx, result)
+	}
+	if isCustomerPaymentExcelAllExportRequest(ctx) {
+		return exportCustomerPaymentExcelAll(ctx, result)
+	}
+
 	// If single customer mode (only 1 customer ID), return without pagination
 	if len(customerIDs) == 1 {
 		return ctx.Status(fiber.StatusOK).
@@ -505,6 +519,83 @@ func (c *RepportController) GetCustomerPayment(ctx *fiber.Ctx) error {
 		})
 }
 
+type BalanceMonitoringResponse struct {
+	Code    int                              `json:"code"`
+	Status  string                           `json:"status"`
+	Message string                           `json:"message"`
+	Meta    response.Meta                    `json:"meta"`
+	Data    []dto.BalanceMonitoringRowDTO    `json:"data"`
+	Totals  dto.BalanceMonitoringTotalsDTO   `json:"totals"`
+}
+
+func (c *RepportController) GetBalanceMonitoring(ctx *fiber.Ctx) error {
+	customerIDs, err := parseUintCSV(ctx.Query("customer_ids"))
+	if err != nil {
+		return fiber.NewError(fiber.StatusBadRequest, "customer_ids must be comma separated positive integers")
+	}
+	salesIDs, err := parseUintCSV(ctx.Query("sales_ids"))
+	if err != nil {
+		return fiber.NewError(fiber.StatusBadRequest, "sales_ids must be comma separated positive integers")
+	}
+
+	query := &validation.BalanceMonitoringQuery{
+		Page:        ctx.QueryInt("page", 1),
+		Limit:       ctx.QueryInt("limit", 10),
+		CustomerIDs: customerIDs,
+		SalesIDs:    salesIDs,
+		FilterBy:    strings.ToLower(ctx.Query("filter_by", "")),
+		SortBy:      ctx.Query("sort_by", ""),
+		SortOrder:   ctx.Query("sort_order", ""),
+		StartDate:   ctx.Query("start_date", ""),
+		EndDate:     ctx.Query("end_date", ""),
+	}
+
+	result, totals, totalResults, err := c.RepportService.GetBalanceMonitoring(ctx, query)
+	if err != nil {
+		return err
+	}
+
+	limit := query.Limit
+	if limit < 1 {
+		limit = 10
+	}
+
+	return ctx.Status(fiber.StatusOK).JSON(BalanceMonitoringResponse{
+		Code:    fiber.StatusOK,
+		Status:  "success",
+		Message: "Get balance monitoring report successfully",
+		Meta: response.Meta{
+			Page:         query.Page,
+			Limit:        limit,
+			TotalPages:   int64(math.Ceil(float64(totalResults) / float64(limit))),
+			TotalResults: totalResults,
+		},
+		Data:   result,
+		Totals: totals,
+	})
+}
+
+func parseUintCSV(raw string) ([]uint, error) {
+	raw = strings.TrimSpace(raw)
+	if raw == "" {
+		return nil, nil
+	}
+	parts := strings.Split(raw, ",")
+	result := make([]uint, 0, len(parts))
+	for _, part := range parts {
+		part = strings.TrimSpace(part)
+		if part == "" {
+			continue
+		}
+		id, err := strconv.ParseUint(part, 10, 32)
+		if err != nil || id == 0 {
+			return nil, fmt.Errorf("invalid id: %s", part)
+		}
+		result = append(result, uint(id))
+	}
+	return result, nil
+}
+
 func (c *RepportController) GetProductionResult(ctx *fiber.Ctx) error {
 	idParam := ctx.Params("idProjectFlockKandang")
 	if idParam == "" {

internal/modules/repports/controllers/repport.customer_payment.export.go

@@ -0,0 +1,585 @@
+package controller
+
+import (
+	"fmt"
+	"math"
+	"strconv"
+	"strings"
+	"time"
+
+	"github.com/gofiber/fiber/v2"
+	"github.com/xuri/excelize/v2"
+	"gitlab.com/mbugroup/lti-api.git/internal/modules/repports/dto"
+)
+
+func isCustomerPaymentExcelExportRequest(c *fiber.Ctx) bool {
+	return strings.EqualFold(strings.TrimSpace(c.Query("export")), "excel")
+}
+
+func isCustomerPaymentExcelAllExportRequest(c *fiber.Ctx) bool {
+	return strings.EqualFold(strings.TrimSpace(c.Query("export")), "excel-all")
+}
+
+func exportCustomerPaymentExcel(c *fiber.Ctx, items []dto.CustomerPaymentReportItem) error {
+	content, err := buildCustomerPaymentWorkbook(items)
+	if err != nil {
+		return fiber.NewError(fiber.StatusInternalServerError, "failed to generate excel file")
+	}
+
+	filename := fmt.Sprintf("laporan-kontrol-pembayaran-customer-%s.xlsx", time.Now().Format("2006-01-02-1504"))
+	c.Set("Content-Type", "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet")
+	c.Set("Content-Disposition", fmt.Sprintf(`attachment; filename="%s"`, filename))
+	return c.Status(fiber.StatusOK).Send(content)
+}
+
+func exportCustomerPaymentExcelAll(c *fiber.Ctx, items []dto.CustomerPaymentReportItem) error {
+	content, err := buildCustomerPaymentAllWorkbook(items)
+	if err != nil {
+		return fiber.NewError(fiber.StatusInternalServerError, "failed to generate excel file")
+	}
+
+	filename := fmt.Sprintf("laporan-kontrol-pembayaran-customer-all-%s.xlsx", time.Now().Format("2006-01-02-1504"))
+	c.Set("Content-Type", "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet")
+	c.Set("Content-Disposition", fmt.Sprintf(`attachment; filename="%s"`, filename))
+	return c.Status(fiber.StatusOK).Send(content)
+}
+
+func buildCustomerPaymentWorkbook(items []dto.CustomerPaymentReportItem) ([]byte, error) {
+	file := excelize.NewFile()
+	defer file.Close()
+
+	defaultSheet := file.GetSheetName(file.GetActiveSheetIndex())
+
+	if len(items) == 0 {
+		if err := writeCustomerPaymentSheet(file, defaultSheet, dto.CustomerPaymentReportItem{}); err != nil {
+			return nil, err
+		}
+		buf, err := file.WriteToBuffer()
+		if err != nil {
+			return nil, err
+		}
+		return buf.Bytes(), nil
+	}
+
+	for idx, item := range items {
+		sheetName := sanitizeCustomerPaymentSheetName(customerPaymentName(item))
+		if sheetName == "" {
+			sheetName = fmt.Sprintf("Customer %d", idx+1)
+		}
+
+		if idx == 0 {
+			if defaultSheet != sheetName {
+				if err := file.SetSheetName(defaultSheet, sheetName); err != nil {
+					return nil, err
+				}
+			}
+		} else {
+			if _, err := file.NewSheet(sheetName); err != nil {
+				return nil, err
+			}
+		}
+
+		if err := writeCustomerPaymentSheet(file, sheetName, item); err != nil {
+			return nil, err
+		}
+	}
+
+	buf, err := file.WriteToBuffer()
+	if err != nil {
+		return nil, err
+	}
+	return buf.Bytes(), nil
+}
+
+func buildCustomerPaymentAllWorkbook(items []dto.CustomerPaymentReportItem) ([]byte, error) {
+	file := excelize.NewFile()
+	defer file.Close()
+
+	const sheet = "Kontrol Pembayaran Customer"
+	defaultSheet := file.GetSheetName(file.GetActiveSheetIndex())
+	if defaultSheet != sheet {
+		if err := file.SetSheetName(defaultSheet, sheet); err != nil {
+			return nil, err
+		}
+	}
+
+	if err := setCustomerPaymentAllColumns(file, sheet); err != nil {
+		return nil, err
+	}
+	if err := setCustomerPaymentAllHeaders(file, sheet); err != nil {
+		return nil, err
+	}
+	if err := writeCustomerPaymentAllRows(file, sheet, items); err != nil {
+		return nil, err
+	}
+	if err := file.SetPanes(sheet, &excelize.Panes{
+		Freeze:      true,
+		YSplit:      1,
+		TopLeftCell: "A2",
+		ActivePane:  "bottomLeft",
+	}); err != nil {
+		return nil, err
+	}
+
+	buf, err := file.WriteToBuffer()
+	if err != nil {
+		return nil, err
+	}
+	return buf.Bytes(), nil
+}
+
+var cpSheetHeaders = []string{
+	"No",
+	"Tanggal DO/Bayar",
+	"Tanggal Realisasi",
+	"Aging",
+	"Referensi",
+	"Nomor Polisi",
+	"Ekor/Qty",
+	"Berat (Kg)",
+	"AVG",
+	"Harga/Unit (Rp)",
+	"Harga Akhir (Rp)",
+	"Total (Rp)",
+	"Pembayaran (Rp)",
+	"Saldo Piutang (Rp)",
+	"Keterangan",
+	"Pengambilan",
+	"Sales/Marketing",
+}
+
+var cpAllSheetHeaders = append([]string{"Customer"}, cpSheetHeaders...)
+
+var cpSheetColumnWidths = map[string]float64{
+	"A": 5,
+	"B": 15,
+	"C": 12,
+	"D": 8,
+	"E": 12,
+	"F": 15,
+	"G": 10,
+	"H": 12,
+	"I": 10,
+	"J": 15,
+	"K": 15,
+	"L": 15,
+	"M": 15,
+	"N": 15,
+	"O": 20,
+	"P": 15,
+	"Q": 20,
+}
+
+var cpAllSheetColumnWidths = map[string]float64{
+	"A": 22,
+	"B": 6,
+	"C": 15,
+	"D": 15,
+	"E": 8,
+	"F": 12,
+	"G": 15,
+	"H": 10,
+	"I": 12,
+	"J": 10,
+	"K": 15,
+	"L": 15,
+	"M": 15,
+	"N": 15,
+	"O": 15,
+	"P": 20,
+	"Q": 15,
+	"R": 20,
+}
+
+func writeCustomerPaymentSheet(file *excelize.File, sheet string, item dto.CustomerPaymentReportItem) error {
+	for col, width := range cpSheetColumnWidths {
+		if err := file.SetColWidth(sheet, col, col, width); err != nil {
+			return err
+		}
+	}
+
+	// Row 1: headers
+	for i, h := range cpSheetHeaders {
+		col, _ := excelize.ColumnNumberToName(i + 1)
+		if err := file.SetCellValue(sheet, col+"1", h); err != nil {
+			return err
+		}
+	}
+
+	redStyle, err := file.NewStyle(&excelize.Style{
+		Font: &excelize.Font{Color: "FF0000"},
+	})
+	if err != nil {
+		return err
+	}
+
+	// Row 2: saldo awal
+	initialFormatted := formatCPRupiah(item.InitialBalance)
+	if err := file.SetCellValue(sheet, "N2", initialFormatted); err != nil {
+		return err
+	}
+	if item.InitialBalance < 0 {
+		if err := file.SetCellStyle(sheet, "N2", "N2", redStyle); err != nil {
+			return err
+		}
+	}
+
+	// Rows 3+: data rows
+	for i, row := range item.Rows {
+		rowNum := i + 3
+		rowStr := fmt.Sprintf("%d", rowNum)
+
+		cells := customerPaymentRowCells(row, i+1)
+		for colIdx, val := range cells {
+			col, _ := excelize.ColumnNumberToName(colIdx + 1)
+			if err := file.SetCellValue(sheet, col+rowStr, val); err != nil {
+				return err
+			}
+		}
+
+		if row.AccountsReceivable < 0 {
+			if err := file.SetCellStyle(sheet, "N"+rowStr, "N"+rowStr, redStyle); err != nil {
+				return err
+			}
+		}
+	}
+
+	// Total row
+	totalRowNum := len(item.Rows) + 3
+	totalRowStr := fmt.Sprintf("%d", totalRowNum)
+
+	totalCells := map[string]string{
+		"A": "Total",
+		"G": formatCPIDInteger(item.Summary.TotalQty),
+		"H": formatCPIDInteger(item.Summary.TotalWeight),
+		"K": formatCPRupiah(item.Summary.TotalFinalAmount),
+		"L": formatCPRupiah(item.Summary.TotalGrandAmount),
+		"M": formatCPRupiah(item.Summary.TotalPayment),
+		"N": formatCPRupiah(item.Summary.TotalAccountsReceivable),
+	}
+	for col, val := range totalCells {
+		if err := file.SetCellValue(sheet, col+totalRowStr, val); err != nil {
+			return err
+		}
+	}
+	if item.Summary.TotalAccountsReceivable < 0 {
+		if err := file.SetCellStyle(sheet, "N"+totalRowStr, "N"+totalRowStr, redStyle); err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
+
+func setCustomerPaymentAllColumns(file *excelize.File, sheet string) error {
+	for col, width := range cpAllSheetColumnWidths {
+		if err := file.SetColWidth(sheet, col, col, width); err != nil {
+			return err
+		}
+	}
+	return file.SetRowHeight(sheet, 1, 24)
+}
+
+func setCustomerPaymentAllHeaders(file *excelize.File, sheet string) error {
+	borderStyle := []excelize.Border{
+		{Type: "left", Color: "000000", Style: 1},
+		{Type: "top", Color: "000000", Style: 1},
+		{Type: "bottom", Color: "000000", Style: 1},
+		{Type: "right", Color: "000000", Style: 1},
+	}
+	headerStyle, err := file.NewStyle(&excelize.Style{
+		Font: &excelize.Font{Bold: true, Color: "FFFFFF", Family: "Arial", Size: 10},
+		Fill: excelize.Fill{Type: "pattern", Pattern: 1, Color: []string{"4472C4"}},
+		Alignment: &excelize.Alignment{
+			Horizontal: "center",
+			Vertical:   "center",
+			WrapText:   true,
+		},
+		Border: borderStyle,
+	})
+	if err != nil {
+		return err
+	}
+
+	for i, h := range cpAllSheetHeaders {
+		col, _ := excelize.ColumnNumberToName(i + 1)
+		if err := file.SetCellValue(sheet, col+"1", h); err != nil {
+			return err
+		}
+	}
+
+	lastCol, _ := excelize.ColumnNumberToName(len(cpAllSheetHeaders))
+	return file.SetCellStyle(sheet, "A1", lastCol+"1", headerStyle)
+}
+
+func writeCustomerPaymentAllRows(file *excelize.File, sheet string, items []dto.CustomerPaymentReportItem) error {
+	borderStyle := []excelize.Border{
+		{Type: "left", Color: "000000", Style: 1},
+		{Type: "top", Color: "000000", Style: 1},
+		{Type: "bottom", Color: "000000", Style: 1},
+		{Type: "right", Color: "000000", Style: 1},
+	}
+
+	dataStyle, err := file.NewStyle(&excelize.Style{
+		Font:      &excelize.Font{Color: "000000", Family: "Arial", Size: 10},
+		Alignment: &excelize.Alignment{Vertical: "center", WrapText: true},
+		Border:    borderStyle,
+	})
+	if err != nil {
+		return err
+	}
+
+	totalStyle, err := file.NewStyle(&excelize.Style{
+		Font:      &excelize.Font{Bold: true, Color: "000000", Family: "Arial", Size: 10},
+		Fill:      excelize.Fill{Type: "pattern", Pattern: 1, Color: []string{"E2EFDA"}},
+		Alignment: &excelize.Alignment{Vertical: "center", WrapText: true},
+		Border:    borderStyle,
+	})
+	if err != nil {
+		return err
+	}
+
+	redDataStyle, err := file.NewStyle(&excelize.Style{
+		Font:      &excelize.Font{Color: "FF0000", Family: "Arial", Size: 10},
+		Alignment: &excelize.Alignment{Vertical: "center", WrapText: true},
+		Border:    borderStyle,
+	})
+	if err != nil {
+		return err
+	}
+
+	redTotalStyle, err := file.NewStyle(&excelize.Style{
+		Font:      &excelize.Font{Bold: true, Color: "FF0000", Family: "Arial", Size: 10},
+		Fill:      excelize.Fill{Type: "pattern", Pattern: 1, Color: []string{"E2EFDA"}},
+		Alignment: &excelize.Alignment{Vertical: "center", WrapText: true},
+		Border:    borderStyle,
+	})
+	if err != nil {
+		return err
+	}
+
+	lastHeaderCol, _ := excelize.ColumnNumberToName(len(cpAllSheetHeaders))
+	currentRow := 2
+
+	for _, item := range items {
+		name := customerPaymentName(item)
+
+		// Saldo awal row
+		saldoStr := fmt.Sprintf("%d", currentRow)
+		if err := file.SetCellValue(sheet, "A"+saldoStr, name); err != nil {
+			return err
+		}
+		initialFormatted := formatCPRupiah(item.InitialBalance)
+		if err := file.SetCellValue(sheet, "O"+saldoStr, initialFormatted); err != nil {
+			return err
+		}
+		if err := file.SetCellStyle(sheet, "A"+saldoStr, lastHeaderCol+saldoStr, dataStyle); err != nil {
+			return err
+		}
+		if item.InitialBalance < 0 {
+			if err := file.SetCellStyle(sheet, "O"+saldoStr, "O"+saldoStr, redDataStyle); err != nil {
+				return err
+			}
+		}
+		currentRow++
+
+		// Data rows
+		for seq, row := range item.Rows {
+			rowStr := fmt.Sprintf("%d", currentRow)
+			if err := file.SetCellValue(sheet, "A"+rowStr, name); err != nil {
+				return err
+			}
+			cells := customerPaymentRowCells(row, seq+1)
+			for colIdx, val := range cells {
+				col, _ := excelize.ColumnNumberToName(colIdx + 2)
+				if err := file.SetCellValue(sheet, col+rowStr, val); err != nil {
+					return err
+				}
+			}
+			if err := file.SetCellStyle(sheet, "A"+rowStr, lastHeaderCol+rowStr, dataStyle); err != nil {
+				return err
+			}
+			if row.AccountsReceivable < 0 {
+				if err := file.SetCellStyle(sheet, "O"+rowStr, "O"+rowStr, redDataStyle); err != nil {
+					return err
+				}
+			}
+			currentRow++
+		}
+
+		// Total row
+		totalStr := fmt.Sprintf("%d", currentRow)
+		totalCells := map[string]string{
+			"A": name,
+			"B": "Total",
+			"H": formatCPIDInteger(item.Summary.TotalQty),
+			"I": formatCPIDInteger(item.Summary.TotalWeight),
+			"L": formatCPRupiah(item.Summary.TotalFinalAmount),
+			"M": formatCPRupiah(item.Summary.TotalGrandAmount),
+			"N": formatCPRupiah(item.Summary.TotalPayment),
+			"O": formatCPRupiah(item.Summary.TotalAccountsReceivable),
+		}
+		for col, val := range totalCells {
+			if err := file.SetCellValue(sheet, col+totalStr, val); err != nil {
+				return err
+			}
+		}
+		if err := file.SetCellStyle(sheet, "A"+totalStr, lastHeaderCol+totalStr, totalStyle); err != nil {
+			return err
+		}
+		if item.Summary.TotalAccountsReceivable < 0 {
+			if err := file.SetCellStyle(sheet, "O"+totalStr, "O"+totalStr, redTotalStyle); err != nil {
+				return err
+			}
+		}
+		currentRow++
+
+		// Empty separator row
+		currentRow++
+	}
+
+	return nil
+}
+
+// customerPaymentRowCells returns 17 cell values for cols A..Q.
+func customerPaymentRowCells(row dto.CustomerPaymentReportRow, seq int) []interface{} {
+	return []interface{}{
+		seq,
+		formatCPDate(row.TransDate),
+		formatCPOptionalDate(row.DeliveryDate),
+		formatCPAging(row.AgingDay),
+		safeCPText(row.Reference),
+		joinCPStrings(row.VehicleNumbers),
+		formatCPIDInteger(row.Qty),
+		formatCPIDInteger(row.Weight),
+		formatCPAvg(row.AverageWeight),
+		formatCPRupiah(row.UnitPrice),
+		formatCPRupiah(row.FinalPrice),
+		formatCPRupiah(row.TotalPrice),
+		formatCPRupiah(row.PaymentAmount),
+		formatCPRupiah(row.AccountsReceivable),
+		safeCPText(row.Status),
+		joinCPStrings(row.PickupInfo),
+		safeCPText(row.SalesPerson),
+	}
+}
+
+func customerPaymentName(item dto.CustomerPaymentReportItem) string {
+	name := strings.TrimSpace(item.Customer.Name)
+	if name == "" {
+		return "Customer"
+	}
+	return name
+}
+
+func sanitizeCustomerPaymentSheetName(name string) string {
+	replacer := strings.NewReplacer(
+		":", " ", "\\", " ", "/", " ",
+		"?", " ", "*", " ", "[", " ", "]", " ",
+	)
+	sanitized := strings.TrimSpace(replacer.Replace(name))
+	if sanitized == "" {
+		return "Sheet"
+	}
+	runes := []rune(sanitized)
+	if len(runes) > 31 {
+		return string(runes[:31])
+	}
+	return sanitized
+}
+
+var cpIndonesianMonths = [12]string{
+	"Jan", "Feb", "Mar", "Apr", "Mei", "Jun",
+	"Jul", "Agu", "Sep", "Okt", "Nov", "Des",
+}
+
+func formatCPDate(t time.Time) string {
+	if t.IsZero() {
+		return "-"
+	}
+	loc, err := time.LoadLocation("Asia/Jakarta")
+	if err == nil {
+		t = t.In(loc)
+	}
+	return fmt.Sprintf("%02d %s %d", t.Day(), cpIndonesianMonths[t.Month()-1], t.Year())
+}
+
+func formatCPOptionalDate(t *time.Time) string {
+	if t == nil || t.IsZero() {
+		return "-"
+	}
+	return formatCPDate(*t)
+}
+
+func formatCPAging(v *int) string {
+	if v == nil {
+		return "-"
+	}
+	return strconv.Itoa(*v)
+}
+
+func formatCPIDInteger(v float64) string {
+	n := int64(math.Round(v))
+	if n == 0 {
+		return "0"
+	}
+	negative := n < 0
+	abs := n
+	if negative {
+		abs = -n
+	}
+	s := strconv.FormatInt(abs, 10)
+	// insert dots as thousand separators
+	var b strings.Builder
+	start := len(s) % 3
+	if start == 0 {
+		start = 3
+	}
+	b.WriteString(s[:start])
+	for i := start; i < len(s); i += 3 {
+		b.WriteByte('.')
+		b.WriteString(s[i : i+3])
+	}
+	if negative {
+		return "-" + b.String()
+	}
+	return b.String()
+}
+
+func formatCPRupiah(v float64) string {
+	const nbsp = " "
+	if v < 0 {
+		return "-Rp" + nbsp + formatCPIDInteger(-v)
+	}
+	return "Rp" + nbsp + formatCPIDInteger(v)
+}
+
+func formatCPAvg(v float64) string {
+	if v == 0 {
+		return "0"
+	}
+	s := strconv.FormatFloat(v, 'f', 2, 64)
+	return strings.ReplaceAll(s, ".", ",")
+}
+
+func safeCPText(s string) string {
+	t := strings.TrimSpace(s)
+	if t == "" {
+		return "-"
+	}
+	return t
+}
+
+func joinCPStrings(ss []string) string {
+	var parts []string
+	for _, s := range ss {
+		s = strings.TrimSpace(s)
+		if s != "" {
+			parts = append(parts, s)
+		}
+	}
+	if len(parts) == 0 {
+		return "-"
+	}
+	return strings.Join(parts, "\n")
+}

internal/modules/repports/controllers/repport.debt_supplier.export.go

@@ -0,0 +1,452 @@
+package controller
+
+import (
+	"fmt"
+	"strings"
+	"time"
+
+	"github.com/gofiber/fiber/v2"
+	"github.com/xuri/excelize/v2"
+	"gitlab.com/mbugroup/lti-api.git/internal/modules/repports/dto"
+)
+
+func isDebtSupplierExcelExportRequest(c *fiber.Ctx) bool {
+	return strings.EqualFold(strings.TrimSpace(c.Query("export")), "excel")
+}
+
+func isDebtSupplierExcelAllExportRequest(c *fiber.Ctx) bool {
+	return strings.EqualFold(strings.TrimSpace(c.Query("export")), "excel-all")
+}
+
+func exportDebtSupplierExcel(c *fiber.Ctx, items []dto.DebtSupplierDTO) error {
+	content, err := buildDebtSupplierWorkbook(items)
+	if err != nil {
+		return fiber.NewError(fiber.StatusInternalServerError, "failed to generate excel file")
+	}
+
+	filename := fmt.Sprintf("laporan-hutang-supplier-%s.xlsx", time.Now().Format("2006-01-02-1504"))
+	c.Set("Content-Type", "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet")
+	c.Set("Content-Disposition", fmt.Sprintf(`attachment; filename="%s"`, filename))
+	return c.Status(fiber.StatusOK).Send(content)
+}
+
+func exportDebtSupplierExcelAll(c *fiber.Ctx, items []dto.DebtSupplierDTO) error {
+	content, err := buildDebtSupplierAllWorkbook(items)
+	if err != nil {
+		return fiber.NewError(fiber.StatusInternalServerError, "failed to generate excel file")
+	}
+
+	filename := fmt.Sprintf("laporan-hutang-supplier-all-%s.xlsx", time.Now().Format("2006-01-02-1504"))
+	c.Set("Content-Type", "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet")
+	c.Set("Content-Disposition", fmt.Sprintf(`attachment; filename="%s"`, filename))
+	return c.Status(fiber.StatusOK).Send(content)
+}
+
+// buildDebtSupplierWorkbook creates a workbook with one sheet per supplier.
+func buildDebtSupplierWorkbook(items []dto.DebtSupplierDTO) ([]byte, error) {
+	file := excelize.NewFile()
+	defer file.Close()
+
+	defaultSheet := file.GetSheetName(file.GetActiveSheetIndex())
+
+	if len(items) == 0 {
+		if err := writeDebtSupplierSheet(file, defaultSheet, dto.DebtSupplierDTO{}); err != nil {
+			return nil, err
+		}
+		buf, err := file.WriteToBuffer()
+		if err != nil {
+			return nil, err
+		}
+		return buf.Bytes(), nil
+	}
+
+	for idx, item := range items {
+		sheetName := sanitizeDebtSupplierSheetName(debtSupplierName(item))
+		if sheetName == "" {
+			sheetName = fmt.Sprintf("Supplier %d", idx+1)
+		}
+
+		if idx == 0 {
+			if defaultSheet != sheetName {
+				if err := file.SetSheetName(defaultSheet, sheetName); err != nil {
+					return nil, err
+				}
+			}
+		} else {
+			if _, err := file.NewSheet(sheetName); err != nil {
+				return nil, err
+			}
+		}
+
+		if err := writeDebtSupplierSheet(file, sheetName, item); err != nil {
+			return nil, err
+		}
+	}
+
+	buf, err := file.WriteToBuffer()
+	if err != nil {
+		return nil, err
+	}
+	return buf.Bytes(), nil
+}
+
+// buildDebtSupplierAllWorkbook creates a single-sheet workbook with purchase-supplier styling.
+func buildDebtSupplierAllWorkbook(items []dto.DebtSupplierDTO) ([]byte, error) {
+	file := excelize.NewFile()
+	defer file.Close()
+
+	const sheet = "Rekap Hutang Supplier"
+	defaultSheet := file.GetSheetName(file.GetActiveSheetIndex())
+	if defaultSheet != sheet {
+		if err := file.SetSheetName(defaultSheet, sheet); err != nil {
+			return nil, err
+		}
+	}
+
+	if err := setDebtSupplierAllColumns(file, sheet); err != nil {
+		return nil, err
+	}
+	if err := setDebtSupplierAllHeaders(file, sheet); err != nil {
+		return nil, err
+	}
+	if err := writeDebtSupplierAllRows(file, sheet, items); err != nil {
+		return nil, err
+	}
+	if err := file.SetPanes(sheet, &excelize.Panes{
+		Freeze:      true,
+		YSplit:      1,
+		TopLeftCell: "A2",
+		ActivePane:  "bottomLeft",
+	}); err != nil {
+		return nil, err
+	}
+
+	buf, err := file.WriteToBuffer()
+	if err != nil {
+		return nil, err
+	}
+	return buf.Bytes(), nil
+}
+
+var debtSupplierSheetHeaders = []string{
+	"No",
+	"Nomor PR",
+	"Nomor PO",
+	"Tanggal Terima/Bayar",
+	"Tanggal PO",
+	"Aging (Hari)",
+	"Area",
+	"Gudang",
+	"Jatuh Tempo",
+	"Status Jatuh Tempo",
+	"Nominal Pembelian (Rp)",
+	"Pembayaran (Rp)",
+	"Sisa Saldo Hutang (Rp)",
+	"Status",
+	"Nomor Perjalanan",
+}
+
+var debtSupplierAllSheetHeaders = append([]string{"Supplier"}, debtSupplierSheetHeaders...)
+
+var debtSupplierSheetColumnWidths = map[string]float64{
+	"A": 5,
+	"B": 14,
+	"C": 12,
+	"D": 20,
+	"E": 10,
+	"F": 12,
+	"G": 15,
+	"H": 20,
+	"I": 12,
+	"J": 20,
+	"K": 20,
+	"L": 15,
+	"M": 20,
+	"N": 12,
+	"O": 15,
+}
+
+var debtSupplierAllSheetColumnWidths = map[string]float64{
+	"A": 24,
+	"B": 6,
+	"C": 14,
+	"D": 14,
+	"E": 20,
+	"F": 12,
+	"G": 10,
+	"H": 16,
+	"I": 22,
+	"J": 12,
+	"K": 22,
+	"L": 20,
+	"M": 18,
+	"N": 22,
+	"O": 14,
+	"P": 18,
+}
+
+func writeDebtSupplierSheet(file *excelize.File, sheet string, item dto.DebtSupplierDTO) error {
+	for col, width := range debtSupplierSheetColumnWidths {
+		if err := file.SetColWidth(sheet, col, col, width); err != nil {
+			return err
+		}
+	}
+
+	// Row 1: headers
+	for i, h := range debtSupplierSheetHeaders {
+		col, _ := excelize.ColumnNumberToName(i + 1)
+		if err := file.SetCellValue(sheet, col+"1", h); err != nil {
+			return err
+		}
+	}
+
+	// Row 2: saldo awal
+	if err := file.SetCellValue(sheet, "M2", item.InitialBalance); err != nil {
+		return err
+	}
+
+	// Rows 3+: data
+	redStyle, err := file.NewStyle(&excelize.Style{
+		Font: &excelize.Font{Color: "FF0000"},
+	})
+	if err != nil {
+		return err
+	}
+
+	for i, row := range item.Rows {
+		rowNum := i + 3
+		rowStr := fmt.Sprintf("%d", rowNum)
+
+		values := debtSupplierRowCells(row, i+1)
+		for colIdx, val := range values {
+			col, _ := excelize.ColumnNumberToName(colIdx + 1)
+			if err := file.SetCellValue(sheet, col+rowStr, val); err != nil {
+				return err
+			}
+		}
+
+		if row.DebtPrice < 0 {
+			if err := file.SetCellStyle(sheet, "M"+rowStr, "M"+rowStr, redStyle); err != nil {
+				return err
+			}
+		}
+	}
+
+	// Total row
+	totalRowNum := len(item.Rows) + 3
+	totalRowStr := fmt.Sprintf("%d", totalRowNum)
+	totalCells := map[string]interface{}{
+		"A": "Total",
+		"F": item.Total.Aging,
+		"K": item.Total.TotalPrice,
+		"L": item.Total.PaymentPrice,
+		"M": item.Total.DebtPrice,
+	}
+	for col, val := range totalCells {
+		if err := file.SetCellValue(sheet, col+totalRowStr, val); err != nil {
+			return err
+		}
+	}
+	if item.Total.DebtPrice < 0 {
+		if err := file.SetCellStyle(sheet, "M"+totalRowStr, "M"+totalRowStr, redStyle); err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
+
+func setDebtSupplierAllColumns(file *excelize.File, sheet string) error {
+	for col, width := range debtSupplierAllSheetColumnWidths {
+		if err := file.SetColWidth(sheet, col, col, width); err != nil {
+			return err
+		}
+	}
+	if err := file.SetRowHeight(sheet, 1, 24); err != nil {
+		return err
+	}
+	return nil
+}
+
+func setDebtSupplierAllHeaders(file *excelize.File, sheet string) error {
+	headerStyle, err := file.NewStyle(&excelize.Style{
+		Font: &excelize.Font{Bold: true, Color: "FFFFFF", Family: "Arial", Size: 10},
+		Fill: excelize.Fill{Type: "pattern", Pattern: 1, Color: []string{"4472C4"}},
+		Alignment: &excelize.Alignment{
+			Horizontal: "center",
+			Vertical:   "center",
+			WrapText:   true,
+		},
+		Border: []excelize.Border{
+			{Type: "left", Color: "000000", Style: 1},
+			{Type: "top", Color: "000000", Style: 1},
+			{Type: "bottom", Color: "000000", Style: 1},
+			{Type: "right", Color: "000000", Style: 1},
+		},
+	})
+	if err != nil {
+		return err
+	}
+
+	for i, h := range debtSupplierAllSheetHeaders {
+		col, _ := excelize.ColumnNumberToName(i + 1)
+		if err := file.SetCellValue(sheet, col+"1", h); err != nil {
+			return err
+		}
+	}
+
+	lastCol, _ := excelize.ColumnNumberToName(len(debtSupplierAllSheetHeaders))
+	return file.SetCellStyle(sheet, "A1", lastCol+"1", headerStyle)
+}
+
+func writeDebtSupplierAllRows(file *excelize.File, sheet string, items []dto.DebtSupplierDTO) error {
+	borderStyle := []excelize.Border{
+		{Type: "left", Color: "000000", Style: 1},
+		{Type: "top", Color: "000000", Style: 1},
+		{Type: "bottom", Color: "000000", Style: 1},
+		{Type: "right", Color: "000000", Style: 1},
+	}
+
+	dataStyle, err := file.NewStyle(&excelize.Style{
+		Font:      &excelize.Font{Color: "000000", Family: "Arial", Size: 10},
+		Alignment: &excelize.Alignment{Vertical: "center", WrapText: true},
+		Border:    borderStyle,
+	})
+	if err != nil {
+		return err
+	}
+
+	totalStyle, err := file.NewStyle(&excelize.Style{
+		Font:      &excelize.Font{Bold: true, Color: "000000", Family: "Arial", Size: 10},
+		Fill:      excelize.Fill{Type: "pattern", Pattern: 1, Color: []string{"E2EFDA"}},
+		Alignment: &excelize.Alignment{Vertical: "center", WrapText: true},
+		Border:    borderStyle,
+	})
+	if err != nil {
+		return err
+	}
+
+	lastHeaderCol, _ := excelize.ColumnNumberToName(len(debtSupplierAllSheetHeaders))
+
+	currentRow := 2
+	for _, item := range items {
+		supplierName := debtSupplierName(item)
+
+		// Saldo awal row
+		saldoRowStr := fmt.Sprintf("%d", currentRow)
+		if err := file.SetCellValue(sheet, "A"+saldoRowStr, supplierName); err != nil {
+			return err
+		}
+		if err := file.SetCellValue(sheet, "N"+saldoRowStr, item.InitialBalance); err != nil {
+			return err
+		}
+		if err := file.SetCellStyle(sheet, "A"+saldoRowStr, lastHeaderCol+saldoRowStr, dataStyle); err != nil {
+			return err
+		}
+		currentRow++
+
+		// Data rows
+		for seq, row := range item.Rows {
+			rowStr := fmt.Sprintf("%d", currentRow)
+			if err := file.SetCellValue(sheet, "A"+rowStr, supplierName); err != nil {
+				return err
+			}
+			values := debtSupplierRowCells(row, seq+1)
+			for colIdx, val := range values {
+				col, _ := excelize.ColumnNumberToName(colIdx + 2)
+				if err := file.SetCellValue(sheet, col+rowStr, val); err != nil {
+					return err
+				}
+			}
+			if err := file.SetCellStyle(sheet, "A"+rowStr, lastHeaderCol+rowStr, dataStyle); err != nil {
+				return err
+			}
+			currentRow++
+		}
+
+		// Total row
+		totalRowStr := fmt.Sprintf("%d", currentRow)
+		totalCells := map[string]interface{}{
+			"A": supplierName,
+			"B": "Total",
+			"L": item.Total.TotalPrice,
+			"M": item.Total.PaymentPrice,
+			"N": item.Total.DebtPrice,
+		}
+		for col, val := range totalCells {
+			if err := file.SetCellValue(sheet, col+totalRowStr, val); err != nil {
+				return err
+			}
+		}
+		if err := file.SetCellStyle(sheet, "A"+totalRowStr, lastHeaderCol+totalRowStr, totalStyle); err != nil {
+			return err
+		}
+		currentRow++
+
+		// Empty separator row
+		currentRow++
+	}
+
+	return nil
+}
+
+// debtSupplierRowCells returns cell values for one data row (columns: No, PR, PO, ReceivedDate, PoDate, Aging, Area, Warehouse, DueDate, DueStatus, TotalPrice, PaymentPrice, DebtPrice, Status, TravelNumber).
+func debtSupplierRowCells(row dto.DebtSupplierRowDTO, seq int) []interface{} {
+	areaName := "-"
+	if row.Area != nil && strings.TrimSpace(row.Area.Name) != "" {
+		areaName = row.Area.Name
+	}
+	warehouseName := "-"
+	if row.Warehouse != nil && strings.TrimSpace(row.Warehouse.Name) != "" {
+		warehouseName = row.Warehouse.Name
+	}
+
+	return []interface{}{
+		seq,
+		safeDebtSupplierText(row.PrNumber),
+		safeDebtSupplierText(row.PoNumber),
+		safeDebtSupplierText(row.ReceivedDate),
+		safeDebtSupplierText(row.PoDate),
+		row.Aging,
+		areaName,
+		warehouseName,
+		safeDebtSupplierText(row.DueDate),
+		safeDebtSupplierText(row.DueStatus),
+		row.TotalPrice,
+		row.PaymentPrice,
+		row.DebtPrice,
+		safeDebtSupplierText(row.Status),
+		safeDebtSupplierText(row.TravelNumber),
+	}
+}
+
+func debtSupplierName(item dto.DebtSupplierDTO) string {
+	if item.Supplier != nil && strings.TrimSpace(item.Supplier.Name) != "" {
+		return item.Supplier.Name
+	}
+	return "Supplier"
+}
+
+func sanitizeDebtSupplierSheetName(name string) string {
+	replacer := strings.NewReplacer(
+		":", " ", "\\", " ", "/", " ",
+		"?", " ", "*", " ", "[", " ", "]", " ",
+	)
+	sanitized := strings.TrimSpace(replacer.Replace(name))
+	if sanitized == "" {
+		return "Sheet"
+	}
+	runes := []rune(sanitized)
+	if len(runes) > 31 {
+		return string(runes[:31])
+	}
+	return sanitized
+}
+
+func safeDebtSupplierText(s string) string {
+	t := strings.TrimSpace(s)
+	if t == "" {
+		return "-"
+	}
+	return t
+}

internal/modules/repports/dto/repportBalanceMonitoring.dto.go

@@ -0,0 +1,71 @@
+package dto
+
+import (
+	entity "gitlab.com/mbugroup/lti-api.git/internal/entities"
+	customerDTO "gitlab.com/mbugroup/lti-api.git/internal/modules/master/customers/dto"
+)
+
+type BalanceMonitoringAyamDTO struct {
+	Ekor    float64 `json:"ekor"`
+	Kg      float64 `json:"kg"`
+	Nominal float64 `json:"nominal"`
+}
+
+type BalanceMonitoringTelurDTO struct {
+	Butir   float64 `json:"butir"`
+	Kg      float64 `json:"kg"`
+	Nominal float64 `json:"nominal"`
+}
+
+type BalanceMonitoringTradingDTO struct {
+	Qty     float64 `json:"qty"`
+	Kg      float64 `json:"kg"`
+	Nominal float64 `json:"nominal"`
+}
+
+type BalanceMonitoringRowDTO struct {
+	Customer         customerDTO.CustomerRelationDTO `json:"customer"`
+	SaldoAwal        float64                         `json:"saldo_awal"`
+	PenjualanAyam    BalanceMonitoringAyamDTO        `json:"penjualan_ayam"`
+	PenjualanTelur   BalanceMonitoringTelurDTO       `json:"penjualan_telur"`
+	PenjualanTrading BalanceMonitoringTradingDTO     `json:"penjualan_trading"`
+	Pembayaran       float64                         `json:"pembayaran"`
+	Aging            int                             `json:"aging"`
+	AgingRataRata    float64                         `json:"aging_rata_rata"`
+	SaldoAkhir       float64                         `json:"saldo_akhir"`
+}
+
+type BalanceMonitoringTotalsDTO struct {
+	SaldoAwal        float64                     `json:"saldo_awal"`
+	PenjualanAyam    BalanceMonitoringAyamDTO    `json:"penjualan_ayam"`
+	PenjualanTelur   BalanceMonitoringTelurDTO   `json:"penjualan_telur"`
+	PenjualanTrading BalanceMonitoringTradingDTO `json:"penjualan_trading"`
+	Pembayaran       float64                     `json:"pembayaran"`
+	Aging            int                         `json:"aging"`
+	AgingRataRata    float64                     `json:"aging_rata_rata"`
+	SaldoAkhir       float64                     `json:"saldo_akhir"`
+}
+
+func ToBalanceMonitoringRowDTO(
+	customer entity.Customer,
+	saldoAwal float64,
+	ayam BalanceMonitoringAyamDTO,
+	telur BalanceMonitoringTelurDTO,
+	trading BalanceMonitoringTradingDTO,
+	pembayaran float64,
+	aging int,
+	agingRataRata float64,
+) BalanceMonitoringRowDTO {
+	saldoAkhir := saldoAwal + pembayaran - (ayam.Nominal + telur.Nominal + trading.Nominal)
+	return BalanceMonitoringRowDTO{
+		Customer:         customerDTO.ToCustomerRelationDTO(customer),
+		SaldoAwal:        saldoAwal,
+		PenjualanAyam:    ayam,
+		PenjualanTelur:   telur,
+		PenjualanTrading: trading,
+		Pembayaran:       pembayaran,
+		Aging:            aging,
+		AgingRataRata:    agingRataRata,
+		SaldoAkhir:       saldoAkhir,
+	}
+}

internal/modules/repports/module.go

@@ -40,6 +40,7 @@ func (RepportModule) RegisterRoutes(router fiber.Router, db *gorm.DB, validate *
 	expenseDepreciationRepository := repportRepo.NewExpenseDepreciationRepository(db)
 	productionResultRepository := repportRepo.NewProductionResultRepository(db)
 	customerPaymentRepository := repportRepo.NewCustomerPaymentRepository(db)
+	balanceMonitoringRepository := repportRepo.NewBalanceMonitoringRepository(db)
 	customerRepository := customerRepo.NewCustomerRepository(db)
 	standardGrowthDetailRepository := productionStandardRepo.NewStandardGrowthDetailRepository(db)
 	productionStandardDetailRepository := productionStandardRepo.NewProductionStandardDetailRepository(db)
@@ -66,6 +67,7 @@ func (RepportModule) RegisterRoutes(router fiber.Router, db *gorm.DB, validate *
 		hppPerKandangRepository,
 		productionResultRepository,
 		customerPaymentRepository,
+		balanceMonitoringRepository,
 		customerRepository,
 		standardGrowthDetailRepository,
 		productionStandardDetailRepository,

internal/modules/repports/repositories/balance_monitoring.repository.go

@@ -0,0 +1,518 @@
+package repositories
+
+import (
+	"context"
+	"fmt"
+	"strings"
+	"time"
+
+	entity "gitlab.com/mbugroup/lti-api.git/internal/entities"
+	validation "gitlab.com/mbugroup/lti-api.git/internal/modules/repports/validations"
+	"gitlab.com/mbugroup/lti-api.git/internal/utils"
+
+	"gorm.io/gorm"
+)
+
+type BalanceMonitoringCategoryRow struct {
+	CustomerID     uint    `gorm:"column:customer_id"`
+	AyamQty        float64 `gorm:"column:ayam_qty"`
+	AyamKg         float64 `gorm:"column:ayam_kg"`
+	AyamNominal    float64 `gorm:"column:ayam_nominal"`
+	TelurQty       float64 `gorm:"column:telur_qty"`
+	TelurKg        float64 `gorm:"column:telur_kg"`
+	TelurNominal   float64 `gorm:"column:telur_nominal"`
+	TradingQty     float64 `gorm:"column:trading_qty"`
+	TradingKg      float64 `gorm:"column:trading_kg"`
+	TradingNominal float64 `gorm:"column:trading_nominal"`
+}
+
+type BalanceMonitoringAgingRow struct {
+	CustomerID    uint    `gorm:"column:customer_id"`
+	AgingMax      int     `gorm:"column:aging_max"`
+	AgingRataRata float64 `gorm:"column:aging_rata_rata"`
+}
+
+type BalanceMonitoringGrandTotalsRow struct {
+	SaldoAwalLifetime float64 `gorm:"column:saldo_awal_lifetime"`
+	SalesBeforeStart  float64 `gorm:"column:sales_before_start"`
+	PaymentBeforeStart float64 `gorm:"column:payment_before_start"`
+	AyamQty           float64 `gorm:"column:ayam_qty"`
+	AyamKg            float64 `gorm:"column:ayam_kg"`
+	AyamNominal       float64 `gorm:"column:ayam_nominal"`
+	TelurQty          float64 `gorm:"column:telur_qty"`
+	TelurKg           float64 `gorm:"column:telur_kg"`
+	TelurNominal      float64 `gorm:"column:telur_nominal"`
+	TradingQty        float64 `gorm:"column:trading_qty"`
+	TradingKg         float64 `gorm:"column:trading_kg"`
+	TradingNominal    float64 `gorm:"column:trading_nominal"`
+	PaymentInPeriod   float64 `gorm:"column:payment_in_period"`
+	AgingMax          int     `gorm:"column:aging_max"`
+	AgingRataRata     float64 `gorm:"column:aging_rata_rata"`
+}
+
+type BalanceMonitoringRepository interface {
+	GetCustomerIDsForBalanceMonitoring(ctx context.Context, offset, limit int, filters *validation.BalanceMonitoringQuery) ([]uint, int64, error)
+	GetAllFilteredCustomerIDs(ctx context.Context, filters *validation.BalanceMonitoringQuery) ([]uint, error)
+	GetSaldoAwalLifetime(ctx context.Context, customerIDs []uint) (map[uint]float64, error)
+	GetSalesTotalsBeforeDate(ctx context.Context, customerIDs []uint, filters *validation.BalanceMonitoringQuery) (map[uint]float64, error)
+	GetPaymentTotalsBeforeDate(ctx context.Context, customerIDs []uint, filters *validation.BalanceMonitoringQuery) (map[uint]float64, error)
+	GetSalesByCategoryInPeriod(ctx context.Context, customerIDs []uint, filters *validation.BalanceMonitoringQuery) (map[uint]BalanceMonitoringCategoryRow, error)
+	GetPaymentTotalsInPeriod(ctx context.Context, customerIDs []uint, filters *validation.BalanceMonitoringQuery) (map[uint]float64, error)
+	GetAgingPerCustomer(ctx context.Context, customerIDs []uint, filters *validation.BalanceMonitoringQuery) (map[uint]BalanceMonitoringAgingRow, error)
+	GetGrandTotals(ctx context.Context, filters *validation.BalanceMonitoringQuery) (BalanceMonitoringGrandTotalsRow, error)
+}
+
+type balanceMonitoringRepositoryImpl struct {
+	db *gorm.DB
+}
+
+func NewBalanceMonitoringRepository(db *gorm.DB) BalanceMonitoringRepository {
+	return &balanceMonitoringRepositoryImpl{db: db}
+}
+
+func resolveBalanceMonitoringDateColumn(filterBy string) string {
+	switch strings.ToLower(strings.TrimSpace(filterBy)) {
+	case "realized_at":
+		return "mdp.delivery_date"
+	case "sold_at", "":
+		return "m.so_date"
+	default:
+		return "m.so_date"
+	}
+}
+
+func resolveBalanceMonitoringDateRange(filters *validation.BalanceMonitoringQuery) (time.Time, time.Time, error) {
+	var startDate time.Time
+	var endDate time.Time
+	var err error
+
+	if strings.TrimSpace(filters.StartDate) != "" {
+		startDate, err = utils.ParseDateString(filters.StartDate)
+		if err != nil {
+			return time.Time{}, time.Time{}, err
+		}
+	} else {
+		startDate = time.Date(1970, 1, 1, 0, 0, 0, 0, time.UTC)
+	}
+
+	if strings.TrimSpace(filters.EndDate) != "" {
+		endDate, err = utils.ParseDateString(filters.EndDate)
+		if err != nil {
+			return time.Time{}, time.Time{}, err
+		}
+	} else {
+		endDate = time.Now()
+	}
+
+	return startDate, endDate, nil
+}
+
+func resolveBalanceMonitoringSortClause(filters *validation.BalanceMonitoringQuery) string {
+	direction := "ASC"
+	if strings.EqualFold(strings.TrimSpace(filters.SortOrder), "desc") {
+		direction = "DESC"
+	}
+	switch strings.ToLower(strings.TrimSpace(filters.SortBy)) {
+	case "customer":
+		return "customers.name " + direction
+	default:
+		return "customers.name ASC"
+	}
+}
+
+func (r *balanceMonitoringRepositoryImpl) baseCustomerQuery(ctx context.Context, filters *validation.BalanceMonitoringQuery) *gorm.DB {
+	db := r.db.WithContext(ctx).
+		Model(&entity.Customer{}).
+		Where("customers.deleted_at IS NULL")
+
+	if len(filters.CustomerIDs) > 0 {
+		db = db.Where("customers.id IN ?", filters.CustomerIDs)
+	}
+
+	if len(filters.SalesIDs) > 0 {
+		db = db.Where("EXISTS (SELECT 1 FROM marketings m WHERE m.customer_id = customers.id AND m.deleted_at IS NULL AND m.sales_person_id IN ?)", filters.SalesIDs)
+	}
+
+	if filters.AllowedAreaIDs != nil || filters.AllowedLocationIDs != nil {
+		scopeSub := r.db.WithContext(ctx).
+			Table("marketings m").
+			Select("1").
+			Joins("JOIN marketing_products mp ON mp.marketing_id = m.id").
+			Joins("JOIN marketing_delivery_products mdp ON mdp.marketing_product_id = mp.id").
+			Joins("JOIN product_warehouses pw ON pw.id = mdp.product_warehouse_id").
+			Joins("JOIN warehouses w ON w.id = pw.warehouse_id").
+			Where("m.customer_id = customers.id").
+			Where("m.deleted_at IS NULL").
+			Where("mdp.delivery_date IS NOT NULL")
+
+		if filters.AllowedAreaIDs != nil {
+			if len(filters.AllowedAreaIDs) == 0 {
+				db = db.Where("1 = 0")
+			} else {
+				scopeSub = scopeSub.Where("w.area_id IN ?", filters.AllowedAreaIDs)
+			}
+		}
+		if filters.AllowedLocationIDs != nil {
+			if len(filters.AllowedLocationIDs) == 0 {
+				db = db.Where("1 = 0")
+			} else {
+				scopeSub = scopeSub.Where("w.location_id IN ?", filters.AllowedLocationIDs)
+			}
+		}
+
+		db = db.Where("EXISTS (?)", scopeSub)
+	}
+
+	return db
+}
+
+func (r *balanceMonitoringRepositoryImpl) GetCustomerIDsForBalanceMonitoring(ctx context.Context, offset, limit int, filters *validation.BalanceMonitoringQuery) ([]uint, int64, error) {
+	var total int64
+	if err := r.baseCustomerQuery(ctx, filters).Count(&total).Error; err != nil {
+		return nil, 0, err
+	}
+	if total == 0 {
+		return []uint{}, 0, nil
+	}
+
+	if offset < 0 {
+		offset = 0
+	}
+
+	var customerIDs []uint
+	err := r.baseCustomerQuery(ctx, filters).
+		Order(resolveBalanceMonitoringSortClause(filters)).
+		Limit(limit).
+		Offset(offset).
+		Pluck("customers.id", &customerIDs).
+		Error
+	if err != nil {
+		return nil, 0, err
+	}
+
+	return customerIDs, total, nil
+}
+
+func (r *balanceMonitoringRepositoryImpl) GetAllFilteredCustomerIDs(ctx context.Context, filters *validation.BalanceMonitoringQuery) ([]uint, error) {
+	var customerIDs []uint
+	if err := r.baseCustomerQuery(ctx, filters).Pluck("customers.id", &customerIDs).Error; err != nil {
+		return nil, err
+	}
+	return customerIDs, nil
+}
+
+func (r *balanceMonitoringRepositoryImpl) GetSaldoAwalLifetime(ctx context.Context, customerIDs []uint) (map[uint]float64, error) {
+	if len(customerIDs) == 0 {
+		return map[uint]float64{}, nil
+	}
+
+	type row struct {
+		CustomerID uint    `gorm:"column:customer_id"`
+		Total      float64 `gorm:"column:total"`
+	}
+	rows := make([]row, 0)
+	err := r.db.WithContext(ctx).
+		Model(&entity.Payment{}).
+		Select("party_id AS customer_id, COALESCE(SUM(nominal), 0) AS total").
+		Where("party_type = ?", string(utils.PaymentPartyCustomer)).
+		Where("transaction_type = ?", string(utils.TransactionTypeSaldoAwal)).
+		Where("party_id IN ?", customerIDs).
+		Group("party_id").
+		Scan(&rows).Error
+	if err != nil {
+		return nil, err
+	}
+
+	result := make(map[uint]float64, len(rows))
+	for _, r := range rows {
+		result[r.CustomerID] = r.Total
+	}
+	return result, nil
+}
+
+func (r *balanceMonitoringRepositoryImpl) GetSalesTotalsBeforeDate(ctx context.Context, customerIDs []uint, filters *validation.BalanceMonitoringQuery) (map[uint]float64, error) {
+	if len(customerIDs) == 0 {
+		return map[uint]float64{}, nil
+	}
+
+	startDate, _, err := resolveBalanceMonitoringDateRange(filters)
+	if err != nil {
+		return map[uint]float64{}, nil
+	}
+
+	dateColumn := resolveBalanceMonitoringDateColumn(filters.FilterBy)
+
+	type row struct {
+		CustomerID uint    `gorm:"column:customer_id"`
+		Total      float64 `gorm:"column:total"`
+	}
+	rows := make([]row, 0)
+	db := r.db.WithContext(ctx).
+		Table("marketing_delivery_products mdp").
+		Select("m.customer_id AS customer_id, COALESCE(SUM(mdp.total_price), 0) AS total").
+		Joins("INNER JOIN marketing_products mp ON mp.id = mdp.marketing_product_id").
+		Joins("INNER JOIN marketings m ON m.id = mp.marketing_id").
+		Where("m.customer_id IN ?", customerIDs).
+		Where("m.deleted_at IS NULL").
+		Where("mdp.delivery_date IS NOT NULL").
+		Where(fmt.Sprintf("DATE(%s) < ?", dateColumn), startDate)
+
+	if len(filters.SalesIDs) > 0 {
+		db = db.Where("m.sales_person_id IN ?", filters.SalesIDs)
+	}
+
+	if err := db.Group("m.customer_id").Scan(&rows).Error; err != nil {
+		return nil, err
+	}
+
+	result := make(map[uint]float64, len(rows))
+	for _, rr := range rows {
+		result[rr.CustomerID] = rr.Total
+	}
+	return result, nil
+}
+
+func (r *balanceMonitoringRepositoryImpl) GetPaymentTotalsBeforeDate(ctx context.Context, customerIDs []uint, filters *validation.BalanceMonitoringQuery) (map[uint]float64, error) {
+	if len(customerIDs) == 0 {
+		return map[uint]float64{}, nil
+	}
+
+	startDate, _, err := resolveBalanceMonitoringDateRange(filters)
+	if err != nil {
+		return map[uint]float64{}, nil
+	}
+
+	type row struct {
+		CustomerID uint    `gorm:"column:customer_id"`
+		Total      float64 `gorm:"column:total"`
+	}
+	rows := make([]row, 0)
+	err = r.db.WithContext(ctx).
+		Model(&entity.Payment{}).
+		Select("party_id AS customer_id, COALESCE(SUM(nominal), 0) AS total").
+		Where("party_type = ?", string(utils.PaymentPartyCustomer)).
+		Where("transaction_type = ?", string(utils.TransactionTypePenjualan)).
+		Where("direction = ?", "IN").
+		Where("party_id IN ?", customerIDs).
+		Where("DATE(payment_date) < ?", startDate).
+		Group("party_id").
+		Scan(&rows).Error
+	if err != nil {
+		return nil, err
+	}
+
+	result := make(map[uint]float64, len(rows))
+	for _, rr := range rows {
+		result[rr.CustomerID] = rr.Total
+	}
+	return result, nil
+}
+
+func (r *balanceMonitoringRepositoryImpl) GetSalesByCategoryInPeriod(ctx context.Context, customerIDs []uint, filters *validation.BalanceMonitoringQuery) (map[uint]BalanceMonitoringCategoryRow, error) {
+	if len(customerIDs) == 0 {
+		return map[uint]BalanceMonitoringCategoryRow{}, nil
+	}
+
+	startDate, endDate, err := resolveBalanceMonitoringDateRange(filters)
+	if err != nil {
+		return map[uint]BalanceMonitoringCategoryRow{}, nil
+	}
+
+	dateColumn := resolveBalanceMonitoringDateColumn(filters.FilterBy)
+
+	rows := make([]BalanceMonitoringCategoryRow, 0)
+	db := r.db.WithContext(ctx).
+		Table("marketing_delivery_products mdp").
+		Select(`m.customer_id AS customer_id,
+			COALESCE(SUM(CASE WHEN m.marketing_type IN ('AYAM','AYAM_PULLET') THEN mdp.usage_qty    ELSE 0 END), 0) AS ayam_qty,
+			COALESCE(SUM(CASE WHEN m.marketing_type IN ('AYAM','AYAM_PULLET') THEN mdp.total_weight ELSE 0 END), 0) AS ayam_kg,
+			COALESCE(SUM(CASE WHEN m.marketing_type IN ('AYAM','AYAM_PULLET') THEN mdp.total_price  ELSE 0 END), 0) AS ayam_nominal,
+			COALESCE(SUM(CASE WHEN m.marketing_type = 'TELUR' THEN mdp.usage_qty    ELSE 0 END), 0) AS telur_qty,
+			COALESCE(SUM(CASE WHEN m.marketing_type = 'TELUR' THEN mdp.total_weight ELSE 0 END), 0) AS telur_kg,
+			COALESCE(SUM(CASE WHEN m.marketing_type = 'TELUR' THEN mdp.total_price  ELSE 0 END), 0) AS telur_nominal,
+			COALESCE(SUM(CASE WHEN m.marketing_type = 'TRADING' THEN mdp.usage_qty    ELSE 0 END), 0) AS trading_qty,
+			COALESCE(SUM(CASE WHEN m.marketing_type = 'TRADING' THEN mdp.total_weight ELSE 0 END), 0) AS trading_kg,
+			COALESCE(SUM(CASE WHEN m.marketing_type = 'TRADING' THEN mdp.total_price  ELSE 0 END), 0) AS trading_nominal`).
+		Joins("INNER JOIN marketing_products mp ON mp.id = mdp.marketing_product_id").
+		Joins("INNER JOIN marketings m ON m.id = mp.marketing_id").
+		Where("m.customer_id IN ?", customerIDs).
+		Where("m.deleted_at IS NULL").
+		Where("mdp.delivery_date IS NOT NULL").
+		Where(fmt.Sprintf("DATE(%s) >= ?", dateColumn), startDate).
+		Where(fmt.Sprintf("DATE(%s) <= ?", dateColumn), endDate)
+
+	if len(filters.SalesIDs) > 0 {
+		db = db.Where("m.sales_person_id IN ?", filters.SalesIDs)
+	}
+
+	if err := db.Group("m.customer_id").Scan(&rows).Error; err != nil {
+		return nil, err
+	}
+
+	result := make(map[uint]BalanceMonitoringCategoryRow, len(rows))
+	for _, rr := range rows {
+		result[rr.CustomerID] = rr
+	}
+	return result, nil
+}
+
+func (r *balanceMonitoringRepositoryImpl) GetPaymentTotalsInPeriod(ctx context.Context, customerIDs []uint, filters *validation.BalanceMonitoringQuery) (map[uint]float64, error) {
+	if len(customerIDs) == 0 {
+		return map[uint]float64{}, nil
+	}
+
+	startDate, endDate, err := resolveBalanceMonitoringDateRange(filters)
+	if err != nil {
+		return map[uint]float64{}, nil
+	}
+
+	type row struct {
+		CustomerID uint    `gorm:"column:customer_id"`
+		Total      float64 `gorm:"column:total"`
+	}
+	rows := make([]row, 0)
+	err = r.db.WithContext(ctx).
+		Model(&entity.Payment{}).
+		Select("party_id AS customer_id, COALESCE(SUM(nominal), 0) AS total").
+		Where("party_type = ?", string(utils.PaymentPartyCustomer)).
+		Where("transaction_type = ?", string(utils.TransactionTypePenjualan)).
+		Where("direction = ?", "IN").
+		Where("party_id IN ?", customerIDs).
+		Where("DATE(payment_date) >= ?", startDate).
+		Where("DATE(payment_date) <= ?", endDate).
+		Group("party_id").
+		Scan(&rows).Error
+	if err != nil {
+		return nil, err
+	}
+
+	result := make(map[uint]float64, len(rows))
+	for _, rr := range rows {
+		result[rr.CustomerID] = rr.Total
+	}
+	return result, nil
+}
+
+func (r *balanceMonitoringRepositoryImpl) GetAgingPerCustomer(ctx context.Context, customerIDs []uint, filters *validation.BalanceMonitoringQuery) (map[uint]BalanceMonitoringAgingRow, error) {
+	if len(customerIDs) == 0 {
+		return map[uint]BalanceMonitoringAgingRow{}, nil
+	}
+
+	startDate, endDate, err := resolveBalanceMonitoringDateRange(filters)
+	if err != nil {
+		return map[uint]BalanceMonitoringAgingRow{}, nil
+	}
+
+	dateColumn := resolveBalanceMonitoringDateColumn(filters.FilterBy)
+
+	rows := make([]BalanceMonitoringAgingRow, 0)
+	db := r.db.WithContext(ctx).
+		Table("marketing_delivery_products mdp").
+		Select(`m.customer_id AS customer_id,
+			COALESCE(MAX(GREATEST(CURRENT_DATE - DATE(mdp.delivery_date), 0)), 0) AS aging_max,
+			COALESCE(
+				SUM(mdp.total_price * GREATEST(CURRENT_DATE - DATE(mdp.delivery_date), 0))::numeric
+				/ NULLIF(SUM(mdp.total_price), 0),
+				0
+			)::numeric(15,2) AS aging_rata_rata`).
+		Joins("INNER JOIN marketing_products mp ON mp.id = mdp.marketing_product_id").
+		Joins("INNER JOIN marketings m ON m.id = mp.marketing_id").
+		Where("m.customer_id IN ?", customerIDs).
+		Where("m.deleted_at IS NULL").
+		Where("mdp.delivery_date IS NOT NULL").
+		Where(fmt.Sprintf("DATE(%s) >= ?", dateColumn), startDate).
+		Where(fmt.Sprintf("DATE(%s) <= ?", dateColumn), endDate)
+
+	if len(filters.SalesIDs) > 0 {
+		db = db.Where("m.sales_person_id IN ?", filters.SalesIDs)
+	}
+
+	if err := db.Group("m.customer_id").Scan(&rows).Error; err != nil {
+		return nil, err
+	}
+
+	result := make(map[uint]BalanceMonitoringAgingRow, len(rows))
+	for _, rr := range rows {
+		result[rr.CustomerID] = rr
+	}
+	return result, nil
+}
+
+func (r *balanceMonitoringRepositoryImpl) GetGrandTotals(ctx context.Context, filters *validation.BalanceMonitoringQuery) (BalanceMonitoringGrandTotalsRow, error) {
+	customerIDs, err := r.GetAllFilteredCustomerIDs(ctx, filters)
+	if err != nil {
+		return BalanceMonitoringGrandTotalsRow{}, err
+	}
+	if len(customerIDs) == 0 {
+		return BalanceMonitoringGrandTotalsRow{}, nil
+	}
+
+	saldoAwalLifetimeMap, err := r.GetSaldoAwalLifetime(ctx, customerIDs)
+	if err != nil {
+		return BalanceMonitoringGrandTotalsRow{}, err
+	}
+	salesBeforeMap, err := r.GetSalesTotalsBeforeDate(ctx, customerIDs, filters)
+	if err != nil {
+		return BalanceMonitoringGrandTotalsRow{}, err
+	}
+	paymentBeforeMap, err := r.GetPaymentTotalsBeforeDate(ctx, customerIDs, filters)
+	if err != nil {
+		return BalanceMonitoringGrandTotalsRow{}, err
+	}
+	categoryMap, err := r.GetSalesByCategoryInPeriod(ctx, customerIDs, filters)
+	if err != nil {
+		return BalanceMonitoringGrandTotalsRow{}, err
+	}
+	paymentInPeriodMap, err := r.GetPaymentTotalsInPeriod(ctx, customerIDs, filters)
+	if err != nil {
+		return BalanceMonitoringGrandTotalsRow{}, err
+	}
+	agingMap, err := r.GetAgingPerCustomer(ctx, customerIDs, filters)
+	if err != nil {
+		return BalanceMonitoringGrandTotalsRow{}, err
+	}
+
+	totals := BalanceMonitoringGrandTotalsRow{}
+	for _, total := range saldoAwalLifetimeMap {
+		totals.SaldoAwalLifetime += total
+	}
+	for _, total := range salesBeforeMap {
+		totals.SalesBeforeStart += total
+	}
+	for _, total := range paymentBeforeMap {
+		totals.PaymentBeforeStart += total
+	}
+	for _, cat := range categoryMap {
+		totals.AyamQty += cat.AyamQty
+		totals.AyamKg += cat.AyamKg
+		totals.AyamNominal += cat.AyamNominal
+		totals.TelurQty += cat.TelurQty
+		totals.TelurKg += cat.TelurKg
+		totals.TelurNominal += cat.TelurNominal
+		totals.TradingQty += cat.TradingQty
+		totals.TradingKg += cat.TradingKg
+		totals.TradingNominal += cat.TradingNominal
+	}
+	for _, total := range paymentInPeriodMap {
+		totals.PaymentInPeriod += total
+	}
+
+	for _, aging := range agingMap {
+		totals.AgingMax += aging.AgingMax
+	}
+
+	weightedSum := 0.0
+	weightTotal := 0.0
+	for cid, cat := range categoryMap {
+		nominal := cat.AyamNominal + cat.TelurNominal + cat.TradingNominal
+		if aging, ok := agingMap[cid]; ok && nominal > 0 {
+			weightedSum += nominal * aging.AgingRataRata
+			weightTotal += nominal
+		}
+	}
+	if weightTotal > 0 {
+		totals.AgingRataRata = weightedSum / weightTotal
+	}
+
+	return totals, nil
+}

internal/modules/repports/route.go

@@ -26,4 +26,5 @@ func RepportRoutes(v1 fiber.Router, u user.UserService, s repport.RepportService
 	route.Get("/hpp-v2-breakdown", m.RequirePermissions(m.P_ReportHppPerKandangGetAll), ctrl.GetHppV2Breakdown)
 	route.Get("/production-result/:idProjectFlockKandang", m.RequirePermissions(m.P_ReportProductionResultGetAll), ctrl.GetProductionResult)
 	route.Get("/customer-payment", m.RequirePermissions(m.P_ReportCustomerPaymentGetAll), ctrl.GetCustomerPayment)
+	route.Get("/balance-monitoring", m.RequirePermissions(m.P_ReportCustomerPaymentGetAll), ctrl.GetBalanceMonitoring)
 }

internal/modules/repports/services/repport.service.go

@@ -52,6 +52,7 @@ type RepportService interface {
 	GetHppV2Breakdown(ctx *fiber.Ctx, params *validation.HppV2BreakdownQuery) (*approvalService.HppV2Breakdown, error)
 	GetProductionResult(ctx *fiber.Ctx, params *validation.ProductionResultQuery) ([]dto.ProductionResultDTO, int64, error)
 	GetCustomerPayment(ctx *fiber.Ctx, params *validation.CustomerPaymentQuery) ([]dto.CustomerPaymentReportItem, int64, error)
+	GetBalanceMonitoring(ctx *fiber.Ctx, params *validation.BalanceMonitoringQuery) ([]dto.BalanceMonitoringRowDTO, dto.BalanceMonitoringTotalsDTO, int64, error)
 	DB() *gorm.DB
 }
 
@@ -74,6 +75,7 @@ type repportService struct {
 	HppPerKandangRepo            repportRepo.HppPerKandangRepository
 	ProductionResultRepo         repportRepo.ProductionResultRepository
 	CustomerPaymentRepo          repportRepo.CustomerPaymentRepository
+	BalanceMonitoringRepo        repportRepo.BalanceMonitoringRepository
 	CustomerRepo                 customerRepo.CustomerRepository
 	StandardGrowthDetailRepo     productionStandardRepository.StandardGrowthDetailRepository
 	ProductionStandardDetailRepo productionStandardRepository.ProductionStandardDetailRepository
@@ -106,6 +108,7 @@ func NewRepportService(
 	hppPerKandangRepo repportRepo.HppPerKandangRepository,
 	productionResultRepo repportRepo.ProductionResultRepository,
 	customerPaymentRepo repportRepo.CustomerPaymentRepository,
+	balanceMonitoringRepo repportRepo.BalanceMonitoringRepository,
 	customerRepo customerRepo.CustomerRepository,
 	standardGrowthDetailRepo productionStandardRepository.StandardGrowthDetailRepository,
 	productionStandardDetailRepo productionStandardRepository.ProductionStandardDetailRepository,
@@ -129,6 +132,7 @@ func NewRepportService(
 		HppPerKandangRepo:            hppPerKandangRepo,
 		ProductionResultRepo:         productionResultRepo,
 		CustomerPaymentRepo:          customerPaymentRepo,
+		BalanceMonitoringRepo:        balanceMonitoringRepo,
 		CustomerRepo:                 customerRepo,
 		StandardGrowthDetailRepo:     standardGrowthDetailRepo,
 		ProductionStandardDetailRepo: productionStandardDetailRepo,
@@ -2893,3 +2897,163 @@ func parseOptionalFloat64(raw string) (*float64, error) {
 
 	return &value, nil
 }
+
+func (s *repportService) GetBalanceMonitoring(ctx *fiber.Ctx, params *validation.BalanceMonitoringQuery) ([]dto.BalanceMonitoringRowDTO, dto.BalanceMonitoringTotalsDTO, int64, error) {
+	if params.SortBy == "" {
+		params.SortBy = "customer"
+	}
+	if params.SortOrder == "" {
+		params.SortOrder = "asc"
+	}
+	if params.FilterBy == "" {
+		params.FilterBy = "sold_at"
+	}
+	if params.Page < 1 {
+		params.Page = 1
+	}
+	if params.Limit < 1 {
+		params.Limit = 10
+	}
+
+	if err := s.Validate.Struct(params); err != nil {
+		return nil, dto.BalanceMonitoringTotalsDTO{}, 0, err
+	}
+
+	locationScope, err := m.ResolveLocationScope(ctx, s.DB())
+	if err != nil {
+		return nil, dto.BalanceMonitoringTotalsDTO{}, 0, err
+	}
+	areaScope, err := m.ResolveAreaScope(ctx, s.DB())
+	if err != nil {
+		return nil, dto.BalanceMonitoringTotalsDTO{}, 0, err
+	}
+	if locationScope.Restrict {
+		params.AllowedLocationIDs = toInt64Slice(locationScope.IDs)
+	}
+	if areaScope.Restrict {
+		params.AllowedAreaIDs = toInt64Slice(areaScope.IDs)
+	}
+
+	offset := (params.Page - 1) * params.Limit
+
+	customerIDs, total, err := s.BalanceMonitoringRepo.GetCustomerIDsForBalanceMonitoring(ctx.Context(), offset, params.Limit, params)
+	if err != nil {
+		return nil, dto.BalanceMonitoringTotalsDTO{}, 0, err
+	}
+	if len(customerIDs) == 0 {
+		emptyTotals, gtErr := s.computeBalanceMonitoringTotals(ctx.Context(), params)
+		if gtErr != nil {
+			return nil, dto.BalanceMonitoringTotalsDTO{}, 0, gtErr
+		}
+		return []dto.BalanceMonitoringRowDTO{}, emptyTotals, total, nil
+	}
+
+	saldoAwalLifetimeMap, err := s.BalanceMonitoringRepo.GetSaldoAwalLifetime(ctx.Context(), customerIDs)
+	if err != nil {
+		return nil, dto.BalanceMonitoringTotalsDTO{}, 0, err
+	}
+	salesBeforeMap, err := s.BalanceMonitoringRepo.GetSalesTotalsBeforeDate(ctx.Context(), customerIDs, params)
+	if err != nil {
+		return nil, dto.BalanceMonitoringTotalsDTO{}, 0, err
+	}
+	paymentBeforeMap, err := s.BalanceMonitoringRepo.GetPaymentTotalsBeforeDate(ctx.Context(), customerIDs, params)
+	if err != nil {
+		return nil, dto.BalanceMonitoringTotalsDTO{}, 0, err
+	}
+	categoryMap, err := s.BalanceMonitoringRepo.GetSalesByCategoryInPeriod(ctx.Context(), customerIDs, params)
+	if err != nil {
+		return nil, dto.BalanceMonitoringTotalsDTO{}, 0, err
+	}
+	paymentInPeriodMap, err := s.BalanceMonitoringRepo.GetPaymentTotalsInPeriod(ctx.Context(), customerIDs, params)
+	if err != nil {
+		return nil, dto.BalanceMonitoringTotalsDTO{}, 0, err
+	}
+	agingMap, err := s.BalanceMonitoringRepo.GetAgingPerCustomer(ctx.Context(), customerIDs, params)
+	if err != nil {
+		return nil, dto.BalanceMonitoringTotalsDTO{}, 0, err
+	}
+
+	customers, err := s.CustomerRepo.GetByIDs(ctx.Context(), customerIDs, func(db *gorm.DB) *gorm.DB {
+		return db.Preload("Pic")
+	})
+	if err != nil {
+		return nil, dto.BalanceMonitoringTotalsDTO{}, 0, err
+	}
+	customerMap := make(map[uint]entity.Customer, len(customers))
+	for _, c := range customers {
+		customerMap[c.Id] = c
+	}
+
+	result := make([]dto.BalanceMonitoringRowDTO, 0, len(customerIDs))
+	for _, customerID := range customerIDs {
+		customer, ok := customerMap[customerID]
+		if !ok {
+			continue
+		}
+
+		saldoAwal := saldoAwalLifetimeMap[customerID] + paymentBeforeMap[customerID] - salesBeforeMap[customerID]
+
+		category := categoryMap[customerID]
+		ayam := dto.BalanceMonitoringAyamDTO{
+			Ekor:    category.AyamQty,
+			Kg:      category.AyamKg,
+			Nominal: category.AyamNominal,
+		}
+		telur := dto.BalanceMonitoringTelurDTO{
+			Butir:   category.TelurQty,
+			Kg:      category.TelurKg,
+			Nominal: category.TelurNominal,
+		}
+		trading := dto.BalanceMonitoringTradingDTO{
+			Qty:     category.TradingQty,
+			Kg:      category.TradingKg,
+			Nominal: category.TradingNominal,
+		}
+
+		pembayaran := paymentInPeriodMap[customerID]
+		aging := agingMap[customerID]
+
+		row := dto.ToBalanceMonitoringRowDTO(customer, saldoAwal, ayam, telur, trading, pembayaran, aging.AgingMax, aging.AgingRataRata)
+		result = append(result, row)
+	}
+
+	totals, err := s.computeBalanceMonitoringTotals(ctx.Context(), params)
+	if err != nil {
+		return nil, dto.BalanceMonitoringTotalsDTO{}, 0, err
+	}
+
+	return result, totals, total, nil
+}
+
+func (s *repportService) computeBalanceMonitoringTotals(ctx context.Context, params *validation.BalanceMonitoringQuery) (dto.BalanceMonitoringTotalsDTO, error) {
+	grand, err := s.BalanceMonitoringRepo.GetGrandTotals(ctx, params)
+	if err != nil {
+		return dto.BalanceMonitoringTotalsDTO{}, err
+	}
+
+	saldoAwal := grand.SaldoAwalLifetime + grand.PaymentBeforeStart - grand.SalesBeforeStart
+	saldoAkhir := saldoAwal + grand.PaymentInPeriod - (grand.AyamNominal + grand.TelurNominal + grand.TradingNominal)
+
+	return dto.BalanceMonitoringTotalsDTO{
+		SaldoAwal: saldoAwal,
+		PenjualanAyam: dto.BalanceMonitoringAyamDTO{
+			Ekor:    grand.AyamQty,
+			Kg:      grand.AyamKg,
+			Nominal: grand.AyamNominal,
+		},
+		PenjualanTelur: dto.BalanceMonitoringTelurDTO{
+			Butir:   grand.TelurQty,
+			Kg:      grand.TelurKg,
+			Nominal: grand.TelurNominal,
+		},
+		PenjualanTrading: dto.BalanceMonitoringTradingDTO{
+			Qty:     grand.TradingQty,
+			Kg:      grand.TradingKg,
+			Nominal: grand.TradingNominal,
+		},
+		Pembayaran:    grand.PaymentInPeriod,
+		Aging:         grand.AgingMax,
+		AgingRataRata: grand.AgingRataRata,
+		SaldoAkhir:    saldoAkhir,
+	}, nil
+}

internal/modules/repports/validations/repport.validation.go

@@ -116,3 +116,17 @@ type CustomerPaymentQuery struct {
 	StartDate   string `query:"start_date" validate:"omitempty,datetime=2006-01-02"`
 	EndDate     string `query:"end_date" validate:"omitempty,datetime=2006-01-02"`
 }
+
+type BalanceMonitoringQuery struct {
+	Page               int     `query:"page" validate:"omitempty,min=1,gt=0"`
+	Limit              int     `query:"limit" validate:"omitempty,min=1,gt=0"`
+	CustomerIDs        []uint  `query:"-" validate:"omitempty,dive,gt=0"`
+	SalesIDs           []uint  `query:"-" validate:"omitempty,dive,gt=0"`
+	FilterBy           string  `query:"filter_by" validate:"omitempty,oneof=sold_at realized_at"`
+	SortBy             string  `query:"sort_by" validate:"omitempty,oneof=customer"`
+	SortOrder          string  `query:"sort_order" validate:"omitempty,oneof=asc desc"`
+	StartDate          string  `query:"start_date" validate:"omitempty,datetime=2006-01-02"`
+	EndDate            string  `query:"end_date" validate:"omitempty,datetime=2006-01-02"`
+	AllowedAreaIDs     []int64 `query:"-"`
+	AllowedLocationIDs []int64 `query:"-"`
+}