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fix(analytics): cost weighed lines by weight, not row count

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A weight-based line is one weighing, so order_items.quantity is pinned to 1
while unit_price and unit_cost are per unit of weight. Analytics SQL was
multiplying and dividing per-unit rates by the raw quantity, costing a 4.2 ons
fish as a single ons: standard_hpp_total and moving_average_hpp_total came out
far too low across all four product reports, overstating gross profit, and
average_price and fifo_hpp_per_unit read per weighing while
standard_hpp_per_unit read per unit, so the three HPP figures in one row could
not be compared.

Adds billableQty and billableQtyNet as the single place that decides the
multiplier, mirroring entities.OrderItem.BillableQuantity.

quantity_sold and total_items stay as weighing counts; weight_sold already
carries the amount. revenue and fifo_hpp_total were already correct via
total_price/total_cost.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
This commit is contained in:
efrilm
2026-09-06 23:06:31 +07:00
co-authored by Claude Opus 5
parent f2701882dc
commit 923c108690
1 changed files with 30 additions and 16 deletions
Download Patch File Download Diff File Expand all files Collapse all files
internal/repository/analytics_repository.go
+30 -16
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@@ -29,6 +29,20 @@ type AnalyticsRepository interface {
GetOutletName(ctx context.Context, organizationID uuid.UUID, outletID uuid.UUID) (string, error)
}
// A weight-based line is a single weighing: order_items.quantity is pinned to 1 and
// the weighed amount lives in order_items.weight, while unit_price and unit_cost are
// per unit of weight. Anything that multiplies or divides by a per-unit rate must use
// the weighed amount, not the row count, or a 4.2 ons fish is costed as a single ons.
// These mirror entities.OrderItem.BillableQuantity for aggregate SQL.
const (
// billableQty is the multiplier for a per-unit price or cost, before refunds.
billableQty = `COALESCE(oi.weight, oi.quantity)`
// billableQtyNet is billableQty after refunds. A weighed line is always refunded
// whole, so with quantity pinned to 1 the factor is the full weight or zero.
billableQtyNet = `COALESCE(oi.weight, 1) * (oi.quantity - COALESCE(oi.refund_quantity, 0))`
)
type AnalyticsRepositoryImpl struct {
db *gorm.DB
}
@@ -464,7 +478,7 @@ func (r *AnalyticsRepositoryImpl) GetProductAnalytics(ctx context.Context, organ
COALESCE(SUM(oi.weight), 0) as weight_sold,
COALESCE(SUM(oi.total_price), 0) as revenue,
CASE
WHEN SUM(oi.quantity) > 0 THEN COALESCE(SUM(oi.total_price), 0) / SUM(oi.quantity)
WHEN SUM(` + billableQty + `) > 0 THEN COALESCE(SUM(oi.total_price), 0) / SUM(` + billableQty + `)
ELSE 0
END as average_price,
COUNT(DISTINCT oi.order_id) as order_count,
@@ -479,14 +493,14 @@ func (r *AnalyticsRepositoryImpl) GetProductAnalytics(ctx context.Context, organ
FROM product_recipes pr
JOIN ingredients i ON pr.ingredient_id = i.id
WHERE pr.product_id = p.id
), p.cost, 0) * COALESCE(SUM(oi.quantity), 0) as standard_hpp_total,
), p.cost, 0) * COALESCE(SUM(` + billableQty + `), 0) as standard_hpp_total,
CASE
WHEN SUM(oi.quantity) > 0 THEN COALESCE(SUM(oi.total_cost), 0) / SUM(oi.quantity)
WHEN SUM(` + billableQty + `) > 0 THEN COALESCE(SUM(oi.total_cost), 0) / SUM(` + billableQty + `)
ELSE 0
END as fifo_hpp_per_unit,
COALESCE(SUM(oi.total_cost), 0) as fifo_hpp_total,
COALESCE(mahpp.hpp_per_unit, p.cost, 0) as moving_average_hpp_per_unit,
COALESCE(mahpp.hpp_per_unit, p.cost, 0) * COALESCE(SUM(oi.quantity), 0) as moving_average_hpp_total
COALESCE(mahpp.hpp_per_unit, p.cost, 0) * COALESCE(SUM(` + billableQty + `), 0) as moving_average_hpp_total
`).
Joins("JOIN products p ON oi.product_id = p.id").
Joins("JOIN categories c ON p.category_id = c.id").
@@ -537,9 +551,9 @@ func (r *AnalyticsRepositoryImpl) GetProductAnalyticsPerCategory(ctx context.Con
COALESCE(SUM(CASE WHEN oi.is_fully_refunded = false THEN oi.quantity - COALESCE(oi.refund_quantity, 0) ELSE 0 END), 0) as total_quantity,
COUNT(DISTINCT p.id) as product_count,
COUNT(DISTINCT oi.order_id) as order_count,
COALESCE(SUM(CASE WHEN oi.is_fully_refunded = false THEN COALESCE(shpp.hpp_per_unit, p.cost, 0) * (oi.quantity - COALESCE(oi.refund_quantity, 0)) ELSE 0 END), 0) as total_standard_hpp,
COALESCE(SUM(CASE WHEN oi.is_fully_refunded = false THEN COALESCE(shpp.hpp_per_unit, p.cost, 0) * ` + billableQtyNet + ` ELSE 0 END), 0) as total_standard_hpp,
COALESCE(SUM(CASE WHEN oi.is_fully_refunded = false THEN oi.total_cost * ((oi.quantity - COALESCE(oi.refund_quantity, 0))::float / NULLIF(oi.quantity, 0)) ELSE 0 END), 0) as total_fifo_hpp,
COALESCE(SUM(CASE WHEN oi.is_fully_refunded = false THEN COALESCE(mahpp.hpp_per_unit, p.cost, 0) * (oi.quantity - COALESCE(oi.refund_quantity, 0)) ELSE 0 END), 0) as total_moving_average_hpp
COALESCE(SUM(CASE WHEN oi.is_fully_refunded = false THEN COALESCE(mahpp.hpp_per_unit, p.cost, 0) * ` + billableQtyNet + ` ELSE 0 END), 0) as total_moving_average_hpp
`).
Joins("JOIN products p ON oi.product_id = p.id").
Joins("JOIN categories c ON p.category_id = c.id").
@@ -590,9 +604,9 @@ func (r *AnalyticsRepositoryImpl) GetProductAnalyticsPerParentCategory(ctx conte
COUNT(DISTINCT c.id) as category_count,
COUNT(DISTINCT p.id) as product_count,
COUNT(DISTINCT oi.order_id) as order_count,
COALESCE(SUM(CASE WHEN oi.is_fully_refunded = false THEN COALESCE(shpp.hpp_per_unit, p.cost, 0) * (oi.quantity - COALESCE(oi.refund_quantity, 0)) ELSE 0 END), 0) as total_standard_hpp,
COALESCE(SUM(CASE WHEN oi.is_fully_refunded = false THEN COALESCE(shpp.hpp_per_unit, p.cost, 0) * ` + billableQtyNet + ` ELSE 0 END), 0) as total_standard_hpp,
COALESCE(SUM(CASE WHEN oi.is_fully_refunded = false THEN oi.total_cost * ((oi.quantity - COALESCE(oi.refund_quantity, 0))::float / NULLIF(oi.quantity, 0)) ELSE 0 END), 0) as total_fifo_hpp,
COALESCE(SUM(CASE WHEN oi.is_fully_refunded = false THEN COALESCE(mahpp.hpp_per_unit, p.cost, 0) * (oi.quantity - COALESCE(oi.refund_quantity, 0)) ELSE 0 END), 0) as total_moving_average_hpp
COALESCE(SUM(CASE WHEN oi.is_fully_refunded = false THEN COALESCE(mahpp.hpp_per_unit, p.cost, 0) * ` + billableQtyNet + ` ELSE 0 END), 0) as total_moving_average_hpp
`).
Joins("JOIN products p ON oi.product_id = p.id").
Joins("JOIN categories c ON p.category_id = c.id").
@@ -707,9 +721,9 @@ func (r *AnalyticsRepositoryImpl) GetParentCategoryAnalyticsDetail(ctx context.C
COUNT(DISTINCT c.id) as category_count,
COUNT(DISTINCT p.id) as product_count,
COUNT(DISTINCT oi.order_id) as order_count,
COALESCE(SUM(CASE WHEN oi.is_fully_refunded = false THEN COALESCE(shpp.hpp_per_unit, p.cost, 0) * (oi.quantity - COALESCE(oi.refund_quantity, 0)) ELSE 0 END), 0) as total_standard_hpp,
COALESCE(SUM(CASE WHEN oi.is_fully_refunded = false THEN COALESCE(shpp.hpp_per_unit, p.cost, 0) * ` + billableQtyNet + ` ELSE 0 END), 0) as total_standard_hpp,
COALESCE(SUM(CASE WHEN oi.is_fully_refunded = false THEN oi.total_cost * ((oi.quantity - COALESCE(oi.refund_quantity, 0))::float / NULLIF(oi.quantity, 0)) ELSE 0 END), 0) as total_fifo_hpp,
COALESCE(SUM(CASE WHEN oi.is_fully_refunded = false THEN COALESCE(mahpp.hpp_per_unit, p.cost, 0) * (oi.quantity - COALESCE(oi.refund_quantity, 0)) ELSE 0 END), 0) as total_moving_average_hpp
COALESCE(SUM(CASE WHEN oi.is_fully_refunded = false THEN COALESCE(mahpp.hpp_per_unit, p.cost, 0) * ` + billableQtyNet + ` ELSE 0 END), 0) as total_moving_average_hpp
`).
Scan(summary).Error
if err != nil {
@@ -728,9 +742,9 @@ func (r *AnalyticsRepositoryImpl) GetParentCategoryAnalyticsDetail(ctx context.C
COALESCE(SUM(CASE WHEN oi.is_fully_refunded = false THEN oi.quantity - COALESCE(oi.refund_quantity, 0) ELSE 0 END), 0) as total_quantity,
COUNT(DISTINCT p.id) as product_count,
COUNT(DISTINCT oi.order_id) as order_count,
COALESCE(SUM(CASE WHEN oi.is_fully_refunded = false THEN COALESCE(shpp.hpp_per_unit, p.cost, 0) * (oi.quantity - COALESCE(oi.refund_quantity, 0)) ELSE 0 END), 0) as total_standard_hpp,
COALESCE(SUM(CASE WHEN oi.is_fully_refunded = false THEN COALESCE(shpp.hpp_per_unit, p.cost, 0) * ` + billableQtyNet + ` ELSE 0 END), 0) as total_standard_hpp,
COALESCE(SUM(CASE WHEN oi.is_fully_refunded = false THEN oi.total_cost * ((oi.quantity - COALESCE(oi.refund_quantity, 0))::float / NULLIF(oi.quantity, 0)) ELSE 0 END), 0) as total_fifo_hpp,
COALESCE(SUM(CASE WHEN oi.is_fully_refunded = false THEN COALESCE(mahpp.hpp_per_unit, p.cost, 0) * (oi.quantity - COALESCE(oi.refund_quantity, 0)) ELSE 0 END), 0) as total_moving_average_hpp
COALESCE(SUM(CASE WHEN oi.is_fully_refunded = false THEN COALESCE(mahpp.hpp_per_unit, p.cost, 0) * ` + billableQtyNet + ` ELSE 0 END), 0) as total_moving_average_hpp
`).
Group("c.id, c.name, c.order").
Order("c.order ASC, c.name ASC").
@@ -760,18 +774,18 @@ func (r *AnalyticsRepositoryImpl) GetParentCategoryAnalyticsDetail(ctx context.C
COALESCE(SUM(CASE WHEN oi.is_fully_refunded = false THEN oi.total_price - COALESCE(oi.refund_amount, 0) ELSE 0 END), 0) as revenue,
COALESCE(
SUM(CASE WHEN oi.is_fully_refunded = false THEN oi.total_price - COALESCE(oi.refund_amount, 0) ELSE 0 END)
/ NULLIF(SUM(CASE WHEN oi.is_fully_refunded = false THEN oi.quantity - COALESCE(oi.refund_quantity, 0) ELSE 0 END), 0),
/ NULLIF(SUM(CASE WHEN oi.is_fully_refunded = false THEN ` + billableQtyNet + ` ELSE 0 END), 0),
0) as average_price,
COUNT(DISTINCT oi.order_id) as order_count,
COALESCE(shpp.hpp_per_unit, p.cost, 0) as standard_hpp_per_unit,
COALESCE(shpp.hpp_per_unit, p.cost, 0) * COALESCE(SUM(CASE WHEN oi.is_fully_refunded = false THEN oi.quantity - COALESCE(oi.refund_quantity, 0) ELSE 0 END), 0) as standard_hpp_total,
COALESCE(shpp.hpp_per_unit, p.cost, 0) * COALESCE(SUM(CASE WHEN oi.is_fully_refunded = false THEN ` + billableQtyNet + ` ELSE 0 END), 0) as standard_hpp_total,
COALESCE(
SUM(CASE WHEN oi.is_fully_refunded = false THEN oi.total_cost * ((oi.quantity - COALESCE(oi.refund_quantity, 0))::float / NULLIF(oi.quantity, 0)) ELSE 0 END)
/ NULLIF(SUM(CASE WHEN oi.is_fully_refunded = false THEN oi.quantity - COALESCE(oi.refund_quantity, 0) ELSE 0 END), 0),
/ NULLIF(SUM(CASE WHEN oi.is_fully_refunded = false THEN ` + billableQtyNet + ` ELSE 0 END), 0),
0) as fifo_hpp_per_unit,
COALESCE(SUM(CASE WHEN oi.is_fully_refunded = false THEN oi.total_cost * ((oi.quantity - COALESCE(oi.refund_quantity, 0))::float / NULLIF(oi.quantity, 0)) ELSE 0 END), 0) as fifo_hpp_total,
COALESCE(mahpp.hpp_per_unit, p.cost, 0) as moving_average_hpp_per_unit,
COALESCE(mahpp.hpp_per_unit, p.cost, 0) * COALESCE(SUM(CASE WHEN oi.is_fully_refunded = false THEN oi.quantity - COALESCE(oi.refund_quantity, 0) ELSE 0 END), 0) as moving_average_hpp_total
COALESCE(mahpp.hpp_per_unit, p.cost, 0) * COALESCE(SUM(CASE WHEN oi.is_fully_refunded = false THEN ` + billableQtyNet + ` ELSE 0 END), 0) as moving_average_hpp_total
`).
Group("p.id, p.name, p.sku, p.price, p.cost, pop.price, c.id, c.name, c.order, shpp.hpp_per_unit, mahpp.hpp_per_unit").
Order("revenue DESC").