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42 lines
1.9 KiB
JavaScript
42 lines
1.9 KiB
JavaScript
// The one-line result every host shows, from computeFins' stats: what was placed
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// and -- quality first -- what wasn't: overhangs too shallow for a fin this way up,
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// and pieces that start in mid-air. Same facts as the website's readout
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// (web/ui/readout.js), shorter.
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//
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// Python hosts have the same line in py/supportfins_host.py host_report; keep the
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// two word for word (plugins/cli/tests/cli.test.js checks them against each other
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// when python3 is on the PATH).
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// Python's f"{x:.1f}": an exact tie rounds to even (4.25 -> 4.2), where toFixed rounds up.
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function oneDecimal(x) {
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const t = x * 10;
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const f = Math.floor(t);
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const r = t - f === 0.5 ? (f % 2 === 0 ? f : f + 1) : Math.round(t);
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return (r / 10).toFixed(1);
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}
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const plural = (n, one, many) => `${n} ${n === 1 ? one : many}`;
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/** @param {object} stats computeFins(...).stats */
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export function reportLine(stats) {
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const walls = (stats.braces || 0) + (stats.props || 0); // tined + plain, as the site counts
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let head = `${plural(walls, 'wall', 'walls')}, ${plural(stats.tines || 0, stats.pins ? 'pin' : 'tine', stats.pins ? 'pins' : 'tines')}`;
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// Sway braces hold the tall sides, not an overhang: never added to the walls.
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if (stats.swayBraces) head += `, ${plural(stats.swayBraces, 'sway brace', 'sway braces')}`;
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const parts = [head];
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const unserved = stats.unserved || 0;
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if (unserved) {
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parts.push(`${unserved} overhang${unserved === 1 ? ' is' : 's are'} too shallow `
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+ 'for a fin this way up (tilt the part steeper)');
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}
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const floating = stats.floating || 0;
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if (floating) {
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const drop = oneDecimal(Number(stats.floatingDrop || 0));
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parts.push((floating === 1
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? `one piece isn't joined to the rest: it starts ${drop} mm up`
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: `${floating} pieces aren't joined to the rest: the first starts ${drop} mm up`)
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+ ', held only by supports');
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}
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return parts.join('; ');
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}
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