56 lines
1.7 KiB
TypeScript
56 lines
1.7 KiB
TypeScript
export const parsePrice = (price: string): number => {
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// Handles formats like "$3.99", "2 for $5", "$0.69"
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const match = price.match(/\$?(\d+\.?\d*)/);
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if (!match) return 0;
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let numericPrice = parseFloat(match[1]);
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const forMatch = price.match(/(\d+)\s+for/i);
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if(forMatch){
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const quantity = parseInt(forMatch[1], 10);
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if(quantity > 0){
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return numericPrice / quantity;
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}
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}
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return numericPrice;
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};
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/**
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* Parses a price string into an integer number of cents.
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* Handles formats like "$10.99", "99¢", "250".
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* @param price The price string to parse.
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* @returns The price in cents, or null if unparsable.
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*/
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export const parsePriceToCents = (price: string): number | null => {
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if (!price || typeof price !== 'string') return null;
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const cleanedPrice = price.trim();
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// Handle "X for Y" cases - these are not a single item price.
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if (cleanedPrice.match(/\d+\s+for/i)) {
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return null;
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}
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// Handle "99¢" format
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const centsMatch = cleanedPrice.match(/(\d+\.?\d*)\s?¢/);
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if (centsMatch && centsMatch[1]) {
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return Math.round(parseFloat(centsMatch[1]));
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}
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// Handle "$10.99" or "10.99" format
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const dollarsMatch = cleanedPrice.match(/\$?(\d+\.?\d*)/);
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if (dollarsMatch && dollarsMatch[1]) {
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const numericValue = parseFloat(dollarsMatch[1]);
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// If the original string did not contain a decimal, and it's a whole number > 50,
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// it's likely already in cents (e.g., "399" for "$3.99").
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if (!cleanedPrice.includes('.') && numericValue > 50 && numericValue % 1 === 0) {
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return numericValue;
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}
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return Math.round(numericValue * 100);
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}
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return null;
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};
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