feat(web): streaming CSV export of hunt participants and results - #1212
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feat(web): streaming CSV export of hunt participants and results#1212autarch-agent wants to merge 1 commit into
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Implements Samuel1-ona#1184: - participantsExport.ts: privacy-aware participant row collection (shareResults=false excludes the row entirely, before ranking) - streamParticipantsCsv: chunked ReadableStream (header + N-size chunks) so large hunts export without buffering the whole file - csv escaping (commas, quotes, newlines) with proper doubling - pure module: data sources injected by caller; no server-only imports - 4/4 unit tests passing under vitest.no-setup.config.ts
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What
Implements the export core for CSV export of hunt participants and results (#1184), mirroring the existing leaderboard export but adding participant data, privacy filtering, and streaming.
How
New
apps/web/lib/participantsExport.ts(pure module — data sources injected by the caller route, so it stays unit-testable):shareResults: falseare excluded before ranking — their rows never leave the server, and remaining ranks re-number correctly.streamParticipantsCsv(total, chunkSize, rowSource)returns aReadableStream<Uint8Array>that pulls rows in chunks through the injected source — large hunts never buffer fully in memory (acceptance criterion).rank,wallet,alias,score,completion_time,joined_at.Tests
4/4 passing under
vitest.no-setup.config.ts:Resolves #1184