feat(website): improve UX for W-ASAP collection analysis mode

[fhennig]

resolves #1026

Summary

• Add coverage query generation (much simpler than anticipated).
• Adds variant query validation to W-ASAP wastewater dashboard collection mode. Collections now validate variant queries through LAPIS parsing and display invalid variants to users with error messages and a link to the collection on CoV-Spectrum.

Changes

Validation & Error Handling

• Parse and validate all variant queries in collections using LAPIS /query/parse endpoint
• Check that queries only contain genome-level filters (mutations/insertions, not metadata)
• Track and display invalid variants with specific error messages

UI Improvements

• New CollectionInfo component shows collection link and invalid variant warnings
• Invalid variants highlighted with warning styling and detailed error messages

Code Organization

• Refactored W-ASAP page by extracting inline components into dedicated files

Screenshot

Screen.Recording.2026-02-24.at.19.08.15.mov

PR Checklist

• All necessary documentation has been adapted.
• The implemented feature is covered by an appropriate test.

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Project	Deployment	Actions	Updated (UTC)
dashboards	Ready	Preview, Comment	Mar 9, 2026 11:09am

[Copilot]

Pull request overview

This PR implements variant query validation and coverage query generation for the W-ASAP wastewater dashboard collection mode, resolving issue #1026. It introduces LAPIS-based parsing and validation of variant queries, generates coverage queries using the formula (query) or (not maybe(query)), and improves the UI by extracting inline components into dedicated files and adding a new CollectionInfo component to display collection metadata and invalid variant warnings.

Changes:

• Added LAPIS query parsing and validation to ensure collection variants contain only genome-level filters (mutations/insertions)
• Implemented coverage query generation using the LAPIS formula from PR #1558
• Refactored W-ASAP page by extracting inline components (WasapStats, VariantFetchInfo, NoDataHelperText) and adding CollectionInfo component

Reviewed changes

Copilot reviewed 11 out of 11 changed files in this pull request and generated 5 comments.

Show a summary per file

File	Description
website/src/util/siloExpressionUtils.ts	New utility to validate SILO filter expressions contain only genome checks
website/src/util/siloExpressionUtils.spec.ts	Tests for SILO expression validation logic
website/src/covspectrum/variantConversionUtil.ts	Converts detailedMutations queries to LAPIS query strings
website/src/covspectrum/variantConversionUtil.spec.ts	Tests for variant conversion utility
website/src/covspectrum/types.ts	Exports DetailedMutationsQuery type
website/src/components/views/wasap/useWasapPageData.ts	Core implementation of variant validation and coverage query generation
website/src/components/views/wasap/components/WasapStats.tsx	Extracted component showing amplicon sequences and sampling dates statistics
website/src/components/views/wasap/components/VariantFetchInfo.tsx	Extracted component displaying clinical sequence counts with warnings
website/src/components/views/wasap/components/NoDataHelperText.tsx	Extracted component for no data helper messages
website/src/components/views/wasap/components/CollectionInfo.tsx	New component displaying collection metadata and invalid variants
website/src/components/views/wasap/WasapPage.tsx	Refactored to use extracted components

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[fengelniederhammer]

and what Copilot says about the missing tests for the invalid cases ;)

[Taepper]

I realised that the coverage_query=(query) or (not maybe(query)) does not hold for the GAP symbol -, because Maybe(GAP) does not match N:

Example data:

0
----------
A
C
G
T
-
N
... (100 times in total)
N

query=1-

The count will return just a single row
Count: 1

However, the coverage query will return 105 instead of the expected 5:

(query) or (not maybe(query))
= (0-) or (not maybe(0-))
= (0-) or (not(0-))
= true

[fhennig]

Regarding Alex' comment, we're probably actually going to make some changes regarding this in SILO. Plan is now to disregard this issue with gaps for now - i'll make an issue for it though.

Edit: Issue link: #1067

[Copilot]

Pull request overview

Copilot reviewed 11 out of 11 changed files in this pull request and generated 3 comments.

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[fengelniederhammer]

The code looks good, but I can't test it because the WISE LAPIS doesn't have the query parse endpoint yet.

[fengelniederhammer]

Tested, works 👍