adjust response depretitation v2

internal/common/repository/common.hppv2.repository.go

@@ -96,6 +96,7 @@ type HppV2FarmDepreciationSnapshotRow struct {
 	DepreciationPercentEffective float64
 	DepreciationValue            float64
 	PulletCostDayNTotal          float64
+	Components                   []byte
 }
 
 type HppV2CostRepository interface {
@@ -404,7 +405,7 @@ func (r *HppV2RepositoryImpl) GetFarmDepreciationSnapshotByProjectFlockIDAndPeri
 	var row HppV2FarmDepreciationSnapshotRow
 	err := r.db.WithContext(ctx).
 		Table("farm_depreciation_snapshots").
-		Select("id, project_flock_id, period_date, depreciation_percent_effective, depreciation_value, pullet_cost_day_n_total").
+		Select("id, project_flock_id, period_date, depreciation_percent_effective, depreciation_value, pullet_cost_day_n_total, components").
 		Where("project_flock_id = ?", projectFlockID).
 		Where("period_date = DATE(?)", periodDate).
 		Limit(1).

internal/common/service/common.hppv2.service.go

@@ -2,6 +2,7 @@ package service
 
 import (
 	"context"
+	"encoding/json"
 	"time"
 
 	commonRepo "gitlab.com/mbugroup/lti-api.git/internal/common/repository"
@@ -1472,6 +1473,18 @@ func (s *hppV2Service) buildFarmSnapshotDepreciationPart(
 		depreciationPercent = (appliedDepreciation / appliedPulletCostDayN) * 100
 	}
 
+	details := map[string]any{
+		"basis_total":            snapshot.DepreciationValue,
+		"pullet_cost_day_n":      appliedPulletCostDayN,
+		"depreciation_percent":   depreciationPercent,
+		"snapshot_id":            snapshot.ID,
+		"snapshot_period_date":   formatDateOnly(snapshot.PeriodDate),
+		"snapshot_project_flock": snapshot.ProjectFlockID,
+	}
+	for key, value := range farmDepreciationSnapshotMetadata(snapshot.Components, projectFlockKandangId) {
+		details[key] = value
+	}
+
 	return &HppV2ComponentPart{
 		Code:   hppV2PartDepreciationFarmSnapshot,
 		Title:  "Farm Snapshot",
@@ -1483,14 +1496,7 @@ func (s *hppV2Service) buildFarmSnapshotDepreciationPart(
 			Denominator: denominator,
 			Ratio:       ratio,
 		},
-		Details: map[string]any{
-			"basis_total":            snapshot.DepreciationValue,
-			"pullet_cost_day_n":      appliedPulletCostDayN,
-			"depreciation_percent":   depreciationPercent,
-			"snapshot_id":            snapshot.ID,
-			"snapshot_period_date":   formatDateOnly(snapshot.PeriodDate),
-			"snapshot_project_flock": snapshot.ProjectFlockID,
-		},
+		Details: details,
 		References: []HppV2Reference{
 			{
 				Type:         "farm_depreciation_snapshot",
@@ -1504,6 +1510,84 @@ func (s *hppV2Service) buildFarmSnapshotDepreciationPart(
 	}, nil
 }
 
+type farmDepreciationSnapshotComponents struct {
+	Kandang []farmDepreciationSnapshotKandangComponent `json:"kandang"`
+}
+
+type farmDepreciationSnapshotKandangComponent struct {
+	ProjectFlockKandangID uint    `json:"project_flock_kandang_id"`
+	DayN                  int     `json:"day_n"`
+	MultiplicationPercent float64 `json:"multiplication_percentage"`
+	ChickinDate           string  `json:"chickin_date"`
+	OriginDate            string  `json:"origin_date"`
+	StandardEffectiveDate string  `json:"standard_effective_date"`
+	Population            float64 `json:"population"`
+}
+
+func farmDepreciationSnapshotMetadata(raw []byte, projectFlockKandangID uint) map[string]any {
+	result := make(map[string]any)
+	if len(raw) == 0 {
+		return result
+	}
+
+	var components farmDepreciationSnapshotComponents
+	if err := json.Unmarshal(raw, &components); err != nil {
+		return result
+	}
+
+	var fallback *farmDepreciationSnapshotKandangComponent
+	for i := range components.Kandang {
+		component := &components.Kandang[i]
+		if !component.hasDepreciationMetadata() {
+			continue
+		}
+		if component.ProjectFlockKandangID == projectFlockKandangID {
+			return component.snapshotDetails()
+		}
+		if fallback == nil {
+			fallback = component
+		}
+	}
+	if fallback != nil {
+		return fallback.snapshotDetails()
+	}
+
+	return result
+}
+
+func (c farmDepreciationSnapshotKandangComponent) hasDepreciationMetadata() bool {
+	return c.DayN > 0 ||
+		c.MultiplicationPercent > 0 ||
+		c.ChickinDate != "" ||
+		c.OriginDate != "" ||
+		c.StandardEffectiveDate != "" ||
+		c.Population > 0
+}
+
+func (c farmDepreciationSnapshotKandangComponent) snapshotDetails() map[string]any {
+	chickinDate := c.ChickinDate
+	if chickinDate == "" {
+		chickinDate = c.OriginDate
+	}
+
+	details := map[string]any{
+		"schedule_day":              c.DayN,
+		"multiplication_percentage": c.MultiplicationPercent,
+	}
+	if chickinDate != "" {
+		details["origin_date"] = chickinDate
+		details["chickin_date"] = chickinDate
+	}
+	if c.StandardEffectiveDate != "" {
+		details["standard_effective_date"] = c.StandardEffectiveDate
+	}
+	if c.Population > 0 {
+		details["kandang_population"] = c.Population
+	}
+
+	return details
+}
+
 func (s *hppV2Service) buildNormalTransferDepreciationPart(
 	contextRow *commonRepo.HppV2ProjectFlockKandangContext,
 	transferInput *commonRepo.HppV2LatestTransferInputRow,

internal/common/service/common.hppv2.service_test.go

@@ -825,6 +825,28 @@ func TestHppV2CalculateHppBreakdown_UsesFarmSnapshotDepreciationProratedByEggPro
 				DepreciationPercentEffective: 10,
 				DepreciationValue:            1000,
 				PulletCostDayNTotal:          10000,
+				Components: []byte(`{
+					"kandang_count": 2,
+					"total_population": 1000,
+					"kandang": [
+						{
+							"project_flock_kandang_id": 71,
+							"day_n": 5,
+							"multiplication_percentage": 0.95,
+							"chickin_date": "2026-01-02",
+							"standard_effective_date": "2026-06-01",
+							"population": 800
+						},
+						{
+							"project_flock_kandang_id": 70,
+							"day_n": 7,
+							"multiplication_percentage": 0.93,
+							"chickin_date": "2026-01-01",
+							"standard_effective_date": "2026-06-02",
+							"population": 200
+						}
+					]
+				}`),
 			},
 		},
 		eggProductionByPFK: map[uint]struct {
@@ -873,6 +895,21 @@ func TestHppV2CalculateHppBreakdown_UsesFarmSnapshotDepreciationProratedByEggPro
 	if depreciation.Parts[0].Details["snapshot_id"] != uint(901) {
 		t.Fatalf("expected snapshot id 901, got %+v", depreciation.Parts[0].Details)
 	}
+	if depreciation.Parts[0].Details["schedule_day"] != 7 {
+		t.Fatalf("expected snapshot schedule_day 7, got %+v", depreciation.Parts[0].Details)
+	}
+	if depreciation.Parts[0].Details["multiplication_percentage"] != 0.93 {
+		t.Fatalf("expected snapshot multiplication_percentage 0.93, got %+v", depreciation.Parts[0].Details)
+	}
+	if depreciation.Parts[0].Details["chickin_date"] != "2026-01-01" {
+		t.Fatalf("expected snapshot chickin_date 2026-01-01, got %+v", depreciation.Parts[0].Details)
+	}
+	if depreciation.Parts[0].Details["standard_effective_date"] != "2026-06-02" {
+		t.Fatalf("expected snapshot standard_effective_date 2026-06-02, got %+v", depreciation.Parts[0].Details)
+	}
+	if depreciation.Parts[0].Details["kandang_population"] != float64(200) {
+		t.Fatalf("expected snapshot kandang_population 200, got %+v", depreciation.Parts[0].Details)
+	}
 }
 
 func stubKey(ids []uint, flags []string) string {