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Enforce per-medium track cardinality in the upload service via MediumRules

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Promote the Session/Mix single-track rule from a CMS-form convention to a
domain invariant: declare cardinality as data in MediumRules, enforce it in
UnifiedTrackService before the vault write (no orphan), return 409, and read
the same rule in the batch-form collapse.
This commit is contained in:
daniel-c-harvey
2026-06-13 14:12:01 -04:00
parent 6f42464294
commit b893ca84de
8 changed files with 261 additions and 9 deletions
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DeepDrftManager/Components/Pages/Tracks/BatchUpload.razor
+4 -3
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@@ -118,12 +118,13 @@
private ReleaseType _releaseType = ReleaseType.Single;
private ReleaseMedium _medium = ReleaseMedium.Cut;
// Switching to a single-track medium (Session/Mix) collapses any multi-track selection to the
// first row so the single-track invariant holds before submit. Switching back to Cut keeps it.
// Switching to a single-track medium collapses any multi-track selection to the first row so the
// single-track invariant holds before submit. The predicate reads the same MediumRules cardinality
// declaration the upload service enforces, so the form and the domain cannot drift.
private void OnMediumChanged(ReleaseMedium medium)
{
_medium = medium;
if (medium != ReleaseMedium.Cut && _tracks.Count > 1)
if (MediumRules.CardinalityOf(medium).IsSingleTrack && _tracks.Count > 1)
{
_tracks.RemoveRange(1, _tracks.Count - 1);
_selectedIndex = _tracks.Count > 0 ? 0 : -1;