61 lines
1.9 KiB
TypeScript
61 lines
1.9 KiB
TypeScript
import { DEFAULT_MARKET_TYPES } from './market-catalog';
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/** 第一版仅足球；字段预留其他 sportType */
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export const SPORT_TYPE_FOOTBALL = 'FOOTBALL';
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/** 常规赛事发布时生成的赛前盘口（手动维护，不含冠军盘） */
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export const STANDARD_PREMATCH_MARKET_TYPES = DEFAULT_MARKET_TYPES;
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export const HANDICAP_TOTAL_MARKET_TYPES = [
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'FT_HANDICAP',
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'HT_HANDICAP',
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'FT_OVER_UNDER',
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'HT_OVER_UNDER',
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'FT_TEAM_TOTAL_HOME',
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'FT_TEAM_TOTAL_AWAY',
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'FT_CORNERS_HANDICAP',
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'FT_CORNERS_OVER_UNDER',
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'FT_CARDS_OVER_UNDER',
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] as const;
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export type ParlayRejectReason = 'OUTRIGHT' | 'NOT_ALLOWED' | 'QUARTER_LINE';
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export function isQuarterLine(line: number | null | undefined): boolean {
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if (line == null || Number.isNaN(line)) return false;
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const frac = Math.abs(line % 1);
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return Math.abs(frac - 0.25) < 0.001 || Math.abs(frac - 0.75) < 0.001;
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}
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export function isQuarterHandicapOrTotal(line: number | null | undefined): boolean {
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return isQuarterLine(line);
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}
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export function canSelectForParlay(params: {
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marketType: string;
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lineValue?: number | null;
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allowParlay?: boolean;
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isOutright?: boolean;
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}): { ok: true } | { ok: false; reason: ParlayRejectReason } {
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if (params.marketType === 'OUTRIGHT_WINNER' || params.isOutright) {
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return { ok: false, reason: 'OUTRIGHT' };
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}
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if (params.allowParlay === false) {
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return { ok: false, reason: 'NOT_ALLOWED' };
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}
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if (
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(HANDICAP_TOTAL_MARKET_TYPES as readonly string[]).includes(params.marketType) &&
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isQuarterHandicapOrTotal(params.lineValue ?? null)
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) {
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return { ok: false, reason: 'QUARTER_LINE' };
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}
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return { ok: true };
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}
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export function isPreMatchKickoff(startTime: Date | string): boolean {
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return new Date() < new Date(startTime);
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}
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export function isSupportedSport(sportType: string | null | undefined): boolean {
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return (sportType ?? SPORT_TYPE_FOOTBALL) === SPORT_TYPE_FOOTBALL;
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}
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