rank-Yu
38 lines
1.7 KiB
TypeScript
38 lines
1.7 KiB
TypeScript
/**
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* Goal-command parsing (pure logic, shared by chat's `/goal` and run's `--goal`, unit-tested).
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*
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* Chat syntax: `/goal[:<budget>] <objective>` — the optional budget rides on the command
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* token (`/goal:500k Raise coverage to 80%`); omitting it means no budget. Run passes the
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* budget value (or `true` for a bare `--goal`), so only `parseTokenBudget` applies there.
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*/
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import { UNLIMITED_BUDGET } from "@prismshadow/penguin-core";
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/**
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* Parses a budget token: a positive number with an optional `k` / `m` suffix
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* (`500k` = 500_000, `1.5m` = 1_500_000, `123456` literal). Returns null when invalid.
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*/
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export function parseTokenBudget(text: string): number | null {
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const m = /^(\d+(?:\.\d+)?)([km])?$/i.exec(text.trim());
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if (!m) return null;
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const scale = m[2]?.toLowerCase() === "m" ? 1_000_000 : m[2]?.toLowerCase() === "k" ? 1_000 : 1;
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const value = Math.round(Number(m[1]) * scale);
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return value > 0 ? value : null;
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}
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export type GoalCommandResult =
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| { ok: true; budget: number; objective: string }
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| { ok: false; reason: "usage" }
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| { ok: false; reason: "budget"; value: string };
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/** Parses a full `/goal…` chat line (the caller has already matched the `/goal` prefix). */
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export function parseGoalCommand(line: string): GoalCommandResult {
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const m = /^\/goal(?::(\S+))?(?:\s+([\s\S]+))?$/.exec(line.trim());
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if (!m) return { ok: false, reason: "usage" };
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const rest = m[2]?.trim() ?? "";
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if (!rest) return { ok: false, reason: "usage" };
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if (m[1] === undefined) return { ok: true, budget: UNLIMITED_BUDGET, objective: rest };
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const budget = parseTokenBudget(m[1]);
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if (budget === null) return { ok: false, reason: "budget", value: m[1] };
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return { ok: true, budget, objective: rest };
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}
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