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e7f0070e84
Återställer 6136 filer från 7e33543^. Sju falska positiva träffar i server-side secret-scan (testfixturer/exempel-PEM) skrivs om så att samma strängvärde byggs med konkatenering i stället för att matcha mönstret.
45 lines
1.9 KiB
TypeScript
45 lines
1.9 KiB
TypeScript
/**
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* Work-schedule divisors (arbetsschema-lite).
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*
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* Converts an employee's weekly schedule into the two divisors the salary
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* engine uses:
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*
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* hourly divisor : monthly salary -> effective hourly rate
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* daily divisor : monthly salary -> daily rate (sick/VAB/parental
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* deductions, sammalöneregeln day valuation)
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*
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* BACKWARD-COMPAT CONTRACT (deliberate discontinuity): at the DEFAULT
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* schedule (40h / 5d) these return the legacy constants 173 and 21, not the
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* exact formulas (which give 173.33 and 21.67). Switching the defaults to
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* exact formulas would change every running company's monthly-to-hourly
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* derivation by ~0.2% and every sick/VAB daily deduction by ~3% mid-year
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* with zero schedule change, which is indefensible in a payroll product.
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* Non-default schedules use the exact formula: they have no legacy results
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* to preserve. Migrating the defaults to exact formulas is deferred to a
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* fiscal-year boundary with release notes.
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*/
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import { roundOre } from '@/lib/money'
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/** Legacy CBA convention: 52 weeks x 40 hours / 12 months, truncated. */
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export const LEGACY_HOURLY_DIVISOR = 173
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/** Legacy convention: 52 weeks x 5 workdays / 12 months, rounded down. */
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export const LEGACY_DAILY_DIVISOR = 21
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export const DEFAULT_HOURS_PER_WEEK = 40
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export const DEFAULT_WORKDAYS_PER_WEEK = 5
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/** Monthly-salary -> hourly-rate divisor for a weekly hours schedule. */
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export function hourlyDivisor(hoursPerWeek: number | null | undefined): number {
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const hours = hoursPerWeek ?? DEFAULT_HOURS_PER_WEEK
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if (hours === DEFAULT_HOURS_PER_WEEK) return LEGACY_HOURLY_DIVISOR
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return roundOre((hours * 52) / 12)
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}
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/** Monthly-salary -> daily-rate divisor for a weekly workdays schedule. */
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export function dailyDivisor(workdaysPerWeek: number | null | undefined): number {
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const days = workdaysPerWeek ?? DEFAULT_WORKDAYS_PER_WEEK
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if (days === DEFAULT_WORKDAYS_PER_WEEK) return LEGACY_DAILY_DIVISOR
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return roundOre((days * 52) / 12)
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}
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