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Marc-André Bombeck
9445d89b76
A typed apiFetch wrapper owns the envelope unwrap, the ok-check and the error read for every client call — two hundred call sites across the app migrate onto it and a lint rule keeps raw api fetches out for good. The legacy timezone helpers fold into the tz module and test fixtures drop personal names.
39 lines
1.5 KiB
TypeScript
39 lines
1.5 KiB
TypeScript
/**
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* v1.4.25 W21 Fix-N — unified dose-string → mg parser.
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*
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* Replaces two near-identical helpers previously hand-rolled inside
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* `<DrugLevelChart>` (`parseDoseMg`) and the titration route
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* (`parseDoseString`). The DrugLevelChart variant returned `NaN` for
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* unparseable strings; the titration variant returned `null`. Both
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* code paths now go through this module — the legacy null-returning
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* shape is preserved as `parseDoseMgOrNull` so the titration route
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* keeps its "no current step" semantics.
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*
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* Accepts comma OR dot as decimal separator (maintainer note: the German
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* UI lets the user type "0,25 mg"). Trailing unit text after the
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* number is ignored — the parser only owns the numeric extraction.
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*/
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/**
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* Parse a dose string like "7.5 mg" → 7.5 or "0,25" → 0.25. Returns
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* `NaN` when the string carries no recognisable number (e.g. "as
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* needed") so callers can use `Number.isFinite` for the gate.
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*/
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export function parseDoseMg(input: string): number {
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if (!input) return Number.NaN;
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const match = input.match(/([0-9]+(?:[.,][0-9]+)?)/);
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if (!match) return Number.NaN;
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return Number.parseFloat(match[1].replace(",", "."));
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}
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/**
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* Same as `parseDoseMg` but returns `null` instead of `NaN` for the
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* unparseable case. The titration route reads this as "no current
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* step" — null signals "we couldn't resolve a dose" rather than "the
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* dose is zero".
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*/
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export function parseDoseMgOrNull(input: string): number | null {
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const value = parseDoseMg(input);
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return Number.isFinite(value) ? value : null;
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}
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