Add live evidence-linked contributor leaderboard #2
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,113 @@ | ||
| const BASELINE = 100; | ||
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| const DELTAS = Object.freeze({ | ||
| 'missing-evidence': -5, | ||
| 'review-concerns': -3, | ||
| 'auto-revert': -6, | ||
| 'corrective-reland': 4, | ||
| 'verified-evidence': 3, | ||
| }); | ||
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| function dateValue(value) { | ||
| const time = new Date(value).getTime(); | ||
| return Number.isFinite(time) ? time : 0; | ||
| } | ||
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| export function scoreEvents(events, baseline = BASELINE) { | ||
| let score = baseline; | ||
| const scored = [...events] | ||
| .sort((left, right) => dateValue(left.at) - dateValue(right.at)) | ||
| .map((event) => { | ||
| const delta = DELTAS[event.kind] ?? 0; | ||
| const from = score; | ||
| score += delta; | ||
| return { ...event, delta, from, to: score }; | ||
| }); | ||
| return { score, trend: [baseline, ...scored.map((event) => event.to)], events: scored }; | ||
| } | ||
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| function eventKind(status) { | ||
| if (status === 'blocked') return 'missing-evidence'; | ||
| if (status === 'concerns') return 'review-concerns'; | ||
| if (status === 'approved') return 'verified-evidence'; | ||
|
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When a PR has no active contract, the standard review path can approve it without checking any evidence, yet this status-only mapping records a Useful? React with 👍 / 👎. |
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| return null; | ||
| } | ||
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| export function reviewEventForReceipt(receipt, status = receipt.status, at = null) { | ||
| const kind = eventKind(status); | ||
| if (!kind) return null; | ||
| const number = receipt.github?.number ?? receipt.prNum; | ||
| return { | ||
| kind, | ||
| status, | ||
| at: at ?? receipt.github?.publication?.publishedAt ?? receipt.ts, | ||
| label: `PR #${number} ${status}`, | ||
| url: receipt.github?.htmlUrl ?? null, | ||
| source: receipt.github?.repository ?? 'MongoDB receipt', | ||
| }; | ||
| } | ||
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| function receiptEvents(receipt) { | ||
| if (!receipt.reviewEvents?.length) { | ||
| const current = reviewEventForReceipt(receipt); | ||
| return current ? [current] : []; | ||
| } | ||
| return receipt.reviewEvents | ||
| .map((event) => { | ||
| const generated = reviewEventForReceipt(receipt, event.status, event.at); | ||
| return generated ? { ...generated, ...event } : null; | ||
| }) | ||
| .filter(Boolean); | ||
| } | ||
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| function reviewBand(score) { | ||
| if (score >= 100) return { key: 'normal', label: 'normal review' }; | ||
| if (score >= 90) return { key: 'elevated', label: 'elevated review' }; | ||
| return { key: 'maximum', label: 'maximum review' }; | ||
| } | ||
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| export function buildContributorLeaderboard({ profiles, receipts }) { | ||
| const byScope = new Map( | ||
| profiles.map((profile) => [`${profile.handle}\u0000${profile.subsystem}`, { ...profile }]), | ||
| ); | ||
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| for (const receipt of receipts) { | ||
| if (!receipt.author || !receipt.subsystem || !receipt.github) continue; | ||
| const key = `${receipt.author}\u0000${receipt.subsystem}`; | ||
| if (!byScope.has(key)) { | ||
| byScope.set(key, { | ||
| handle: receipt.author, | ||
| repo: receipt.github.repository, | ||
| subsystem: receipt.subsystem, | ||
| isCurrentUser: receipt.author === 'gorajing', | ||
| events: [], | ||
| }); | ||
| } | ||
| } | ||
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| const rows = []; | ||
| for (const profile of byScope.values()) { | ||
| const liveEvents = receipts | ||
| .filter((receipt) => receipt.author === profile.handle && receipt.subsystem === profile.subsystem) | ||
| .flatMap(receiptEvents); | ||
| const scored = scoreEvents([...(profile.events ?? []), ...liveEvents]); | ||
| rows.push({ | ||
| handle: profile.handle, | ||
| repo: profile.repo, | ||
| subsystem: profile.subsystem, | ||
| isCurrentUser: Boolean(profile.isCurrentUser), | ||
| profileUrl: profile.profileUrl ?? `https://github.com/${profile.handle}`, | ||
| basis: profile.basis ?? 'Live PR-Elo receipts', | ||
| ...scored, | ||
| movement: scored.score - BASELINE, | ||
| band: reviewBand(scored.score), | ||
| }); | ||
| } | ||
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| return rows.sort((left, right) => right.score - left.score || left.handle.localeCompare(right.handle)); | ||
| } | ||
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| export const leaderboardScoring = { | ||
| baseline: BASELINE, | ||
| deltas: DELTAS, | ||
| }; | ||
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For any row with multiple scored events, selecting only
latesthides all earlier evidence links and transitions even though those events still contribute to the displayed total. For example, the documented two-blocked-PR row shows a −10 movement but exposes only the second PR's 95→90 transition, preventing users from auditing the first −5; render the full event list or otherwise provide access to every contributing event.Useful? React with 👍 / 👎.