Files
fuj-management/go/internal/domain/fees/junior.go
T
kacerrandClaude Opus 5.5 21db863958 feat(fees): junior rate for 2026-08 is 0
- 2026-08 added to the junior rate table at 0 CZK, same as adults
- A single practice in a 0-rate month is 0 instead of "?", since a
  free month needs no manual review
- Mirrored in Go and legacy Python; new calculate_junior_fee parity
  fixtures

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-08 21:27:10 +02:00

41 lines
1.3 KiB
Go

package fees
const JuniorFeeDefault = 500 // CZK fallback for 2+ practices when month not in JuniorFeeMonthlyRate
// JuniorFeeMonthlyRate mirrors JUNIOR_MONTHLY_RATE in legacy/scripts/attendance.py.
// Months absent from this map fall back to JuniorFeeDefault.
var JuniorFeeMonthlyRate = map[string]int{
"2025-09": 250,
"2026-03": 250,
"2026-08": 0,
}
// Expected is the result of a junior fee calculation.
// When Unknown is true the fee requires manual review (Python returns "?");
// in that case Value is meaningless — always check Unknown first.
type Expected struct {
Value int
Unknown bool
}
// CalculateJuniorFee returns the junior fee for attendanceCount practices in
// the given monthKey (format "YYYY-MM").
//
// 0 practices → Expected{Value: 0}
// 1 practice → Expected{Unknown: true} (manual review; Python sentinel "?"),
// or Expected{Value: 0} when the month's rate is 0
// 2+ → Expected{Value: JuniorFeeMonthlyRate[monthKey] or JuniorFeeDefault}
func CalculateJuniorFee(attendanceCount int, monthKey string) Expected {
if attendanceCount == 0 {
return Expected{Value: 0}
}
rate, ok := JuniorFeeMonthlyRate[monthKey]
if !ok {
rate = JuniorFeeDefault
}
if attendanceCount == 1 && rate > 0 {
return Expected{Unknown: true}
}
return Expected{Value: rate}
}