104 lines
3.5 KiB
JavaScript
104 lines
3.5 KiB
JavaScript
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function processLine(line, operation, timezone) {
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if (!line.trim() || line.trim().startsWith('#')) {
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return line;
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}
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try {
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let date;
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const trimmedLine = line.trim();
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switch (operation) {
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case 'unix':
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// Input is seconds
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date = new Date(Number(trimmedLine) * 1000);
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break;
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case 'unix_micro':
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// Input is milliseconds
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date = new Date(Number(trimmedLine));
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break;
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case 'to_utc':
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case 'from_utc':
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// Input is ISO 8601
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date = new Date(trimmedLine);
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break;
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}
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if (isNaN(date.getTime())) {
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return 'Invalid Date';
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}
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if (operation === 'to_utc') {
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let dateToConvert = date;
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if (timezone === 'utc' && !trimmedLine.toUpperCase().endsWith('Z') && !trimmedLine.match(/[+-]\d{2}:?\d{2}$/)) {
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dateToConvert = new Date(trimmedLine + 'Z');
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}
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return dateToConvert.toISOString();
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}
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if (operation === 'from_utc') {
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let dateFromUtc;
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if (!trimmedLine.toUpperCase().endsWith('Z') && !trimmedLine.match(/[+-]\d{2}:?\d{2}$/)) {
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dateFromUtc = new Date(trimmedLine + 'Z');
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} else {
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dateFromUtc = new Date(trimmedLine);
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}
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if (timezone === 'utc') {
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return dateFromUtc.toISOString();
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} else {
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// Local
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const offset = dateFromUtc.getTimezoneOffset();
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const localDate = new Date(dateFromUtc.getTime() - (offset * 60 * 1000));
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return localDate.toISOString().slice(0, -1);
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}
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}
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// For Unix conversions:
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if (timezone === 'utc') {
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return date.toISOString();
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} else {
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// Local
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const offset = date.getTimezoneOffset();
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const localDate = new Date(date.getTime() - (offset * 60 * 1000));
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return localDate.toISOString().slice(0, -1);
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}
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} catch (e) {
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return 'Error';
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}
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}
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// Tests
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console.log("Running tests...");
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// 1. Unix to UTC
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const t1 = processLine('1672531200', 'unix', 'utc');
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console.log(`1. Unix to UTC: ${t1} (Expected: 2023-01-01T00:00:00.000Z)`);
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if (t1 !== '2023-01-01T00:00:00.000Z') console.error("FAIL");
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// 2. Unix Micro to UTC
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const t2 = processLine('1672531200000', 'unix_micro', 'utc');
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console.log(`2. Unix Micro to UTC: ${t2} (Expected: 2023-01-01T00:00:00.000Z)`);
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if (t2 !== '2023-01-01T00:00:00.000Z') console.error("FAIL");
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// 3. To UTC (from Local input)
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// Note: Node.js server might be in UTC or Local.
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// If I run this on a machine, "Local" depends on system time.
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// However, the logic for 'to_utc' with 'utc' timezone forces Z.
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const t3 = processLine('2023-01-01T00:00:00', 'to_utc', 'utc');
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console.log(`3. To UTC (input no offset, selected UTC): ${t3} (Expected: 2023-01-01T00:00:00.000Z)`);
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if (t3 !== '2023-01-01T00:00:00.000Z') console.error("FAIL");
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// 4. From UTC (to UTC)
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const t4 = processLine('2023-01-01T00:00:00', 'from_utc', 'utc');
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console.log(`4. From UTC (input no offset, selected UTC): ${t4} (Expected: 2023-01-01T00:00:00.000Z)`);
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if (t4 !== '2023-01-01T00:00:00.000Z') console.error("FAIL");
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// 5. Comment
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const t5 = processLine('# comment', 'unix', 'utc');
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console.log(`5. Comment: ${t5} (Expected: # comment)`);
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if (t5 !== '# comment') console.error("FAIL");
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console.log("Tests finished.");
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