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feat: Use file line number as stable METAR ID in URL

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Co-authored-by: aider (gemini/gemini-2.5-pro) <aider@aider.chat>
This commit is contained in:
Tanner Collin
2026-02-14 18:09:47 -07:00
parent ce0e3f8546
commit dc7345fb1d
1 changed files with 24 additions and 21 deletions
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metar.html
+24 -21
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@@ -819,16 +819,19 @@
return sections;
}
function displayMetar(index) {
function displayMetar(id) {
if (metars.length === 0) {
metarDisplay.textContent = 'No METARs loaded.';
return;
}
let metarIndex;
if (index !== undefined && index >= 0 && index < metars.length) {
metarIndex = index;
} else {
let metarIndex = -1;
if (id !== undefined) {
metarIndex = metars.findIndex(m => m.line === id);
}
if (metarIndex === -1) {
// Bias random selection towards the more interesting (higher-scored) METARs.
// Math.random() * Math.random() skews distribution towards 0.
const randomSortedIndex = Math.floor(Math.random() * Math.random() * sortedMetars.length);
@@ -841,10 +844,10 @@
}
currentMetarIndex = metarIndex;
const metarString = metars[metarIndex].metar;
history.replaceState(null, '', '#' + metarIndex);
const metarData = metars[metarIndex];
history.replaceState(null, '', '#' + metarData.line);
currentMetarSections = generateMetarSections(metarString);
currentMetarSections = generateMetarSections(metarData.metar);
currentSectionIndex = 0;
updateDisplay();
}
@@ -854,11 +857,11 @@
.then(data => {
const lines = data.split('\n');
const rawMetars = [];
lines.forEach(line => {
lines.forEach((line, index) => {
if (line.includes('METAR')) {
const metarString = line.substring(line.indexOf('METAR') + 6).replace('=', '').trim();
if (metarString) {
rawMetars.push(metarString);
rawMetars.push({ metar: metarString, line: index + 1 });
}
}
});
@@ -867,17 +870,17 @@
// 1. Calculate component frequencies for rarity scoring
const componentFrequencies = {};
rawMetars.forEach(metarString => {
const parts = getMetarParts(metarString);
rawMetars.forEach(metarObj => {
const parts = getMetarParts(metarObj.metar);
parts.forEach(part => {
componentFrequencies[part] = (componentFrequencies[part] || 0) + 1;
});
});
// 2. Score and store each METAR
rawMetars.forEach(metarString => {
const score = calculateMetarScore(metarString, componentFrequencies, rawMetars.length);
metars.push({ metar: metarString, score: score });
rawMetars.forEach(metarObj => {
const score = calculateMetarScore(metarObj.metar, componentFrequencies, rawMetars.length);
metars.push({ metar: metarObj.metar, score: score, line: metarObj.line });
});
// 3. Create a sorted copy for biased random selection, but don't sort the main array
@@ -891,10 +894,10 @@
}
const hash = window.location.hash.substring(1);
const initialIndex = parseInt(hash, 10);
const initialId = parseInt(hash, 10);
if (!isNaN(initialIndex) && initialIndex >= 0 && initialIndex < metars.length) {
displayMetar(initialIndex);
if (!isNaN(initialId)) {
displayMetar(initialId);
} else {
displayMetar(); // Display initial random METAR
}
@@ -908,9 +911,9 @@
decodeAllCheckbox.addEventListener('change', updateDisplay);
window.addEventListener('hashchange', () => {
const hash = window.location.hash.substring(1);
const index = parseInt(hash, 10);
if (!isNaN(index) && index >= 0 && index < metars.length) {
displayMetar(index);
const id = parseInt(hash, 10);
if (!isNaN(id)) {
displayMetar(id);
}
});