9d3235bcd8
Pure helper that extracts the trailing numeric sequence from a code string (ST-007 → 7, T-42 → 42). Non-conforming codes fall back to Number.MAX_SAFE_INTEGER so they sort to the end. Includes 5 unit tests. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
26 lines
925 B
TypeScript
26 lines
925 B
TypeScript
// Pure helpers — safe to import from client components.
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// DB-backed helpers (generateNextStoryCode/PbiCode) live in lib/code-server.ts.
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export const CODE_REGEX = /^[A-Za-z0-9._-]+$/
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export const MAX_CODE_LENGTH = 30
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export function isValidCode(code: string): boolean {
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return code.length > 0 && code.length <= MAX_CODE_LENGTH && CODE_REGEX.test(code)
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}
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export function normalizeCode(input: string | null | undefined): string | null {
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if (input == null) return null
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const trimmed = input.trim()
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return trimmed === '' ? null : trimmed
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}
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/**
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* Extract the trailing numeric sequence from a code (e.g. "ST-007" → 7, "T-42" → 42).
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* Non-conforming codes (no trailing digits, empty string) return Number.MAX_SAFE_INTEGER
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* so they sort to the end.
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*/
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export function parseCodeNumber(code: string): number {
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const m = code.match(/(\d+)$/)
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return m ? Number.parseInt(m[1], 10) : Number.MAX_SAFE_INTEGER
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}
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