add api monitoring saldo customer

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:"-"`
+}