Integration pending 4h estimated Tier 5 Bufdir Preview Core Logic: Validation Engine and Preview Orchestration

Integration Purpose

Verify integration with dependent epics: epic-bufdir-report-preview-foundation

This integration checkpoint ensures proper coordination and compatibility between different epics. It verifies that all interfaces, data flows, and dependencies are correctly implemented before proceeding.

Execution Context

Execution Tier
Tier 5

Tier 5 - 253 tasks

Can start after Tier 4 completes

Integration Task

Handles integration between different epics or system components. Requires coordination across multiple development streams.

Task Status
Statuspending
TypeIntegration
Estimated4h
Tier5
Epic Risks (2)
medium impact medium prob scope

The exact minimum threshold values required by Bufdir guidelines (e.g., minimum participant counts per section) may not be formally documented in machine-readable form. If thresholds must be researched or negotiated during implementation, the validation service will be delayed and may launch with incomplete rules, reducing its effectiveness.

Mitigation & Contingency

Mitigation: Compile threshold rules from the Bufdir reporting guidelines PDF before sprint start. Store rules in a separate configuration file (not hardcoded in the service class) so they can be updated without a service rewrite. Treat unknown thresholds as 'no minimum' to avoid false errors.

Contingency: Launch with completeness and anomaly validation only, shipping threshold compliance rules as a follow-on config update once rules are confirmed with Bufdir. Flag this as a known limitation in the coordinator help text.

high impact low prob technical

BufdirPreviewService coordinates three async operations (fetch aggregated data, map structure, run validation). Race conditions or partial failures in this chain could produce an inconsistent preview model — e.g., a model with field values but no validation results — which would silently mislead coordinators into thinking the report is clean.

Mitigation & Contingency

Mitigation: Model the orchestration as a single BLoC/Cubit state machine with explicit states (Loading, Loaded, Error) and ensure validation is always run atomically after mapping, never in parallel. Write integration tests that simulate network failure at each step of the chain.

Contingency: If a partial failure state reaches production, detect it via the missing validation summary field in the preview model and show a full-screen error state rather than an incomplete preview, prompting the coordinator to retry.