Production code:
- POST /api/satellite/tiles/inventory (XOR body, 5000-cap,
most-recent-per-location_hash select, present/absent shaping).
- Kestrel HttpProtocols.Http1AndHttp2 on every listener (AC-5).
- Migration 015 creates tiles_leaflet_path covering index over
(location_hash, captured_at DESC, updated_at DESC, id DESC)
INCLUDE (file_path, source); drops superseded idx_tiles_location_hash.
- TileRepository.GetByTileCoordinatesAsync rewired to filter by
location_hash (Index Only Scan via tiles_leaflet_path).
- TileRepository.GetTilesByLocationHashesAsync added with Npgsql-
direct ANY($1::uuid[]) binding (Dapper IEnumerable expansion is
incompatible with the array form).
- Uuidv5.LocationHashForTile centralises the UUIDv5(TileNamespace,
"{z}/{x}/{y}") formula — single source of truth for the cross-repo
invariant (gps-denied-onboard parity).
Contracts:
- New: contracts/api/tile-inventory.md v1.0.0.
- Bumped: contracts/data-access/tile-storage.md to v2.0.0 (joint
ownership by AZ-503-foundation + AZ-505: schema + covering index +
GetByTileCoordinatesAsync rewrite).
Tests:
- TileInventoryTests covers AC-1, AC-2 (DB-level), AC-4, AC-6.
- Http2MultiplexingTests covers AC-5 (20 concurrent multiplexed GETs
over h2c via SocketsHttpHandler + AppContext Http2Unencrypted switch).
- LeafletPathIndexOnlyTests covers AC-3 (EXPLAIN (ANALYZE, BUFFERS)
asserts Index Only Scan over tiles_leaflet_path with heap_blocks=0).
Docs:
- architecture.md, system-flows.md, data_model.md, module-layout.md,
glossary.md, modules/api_program.md, modules/dataaccess_tile_repository.md,
components/02_data_access/description.md all updated to reference the
v2.0.0 tile-storage contract + new tile-inventory contract + AC-7.
Reports:
- batch_01_cycle6_report.md, batch_01_cycle6_review.md,
implementation_completeness_cycle6_report.md (PASS),
implementation_report_tile_inventory_cycle6.md.
Task spec moved todo/ -> done/.
Co-authored-by: Cursor <cursoragent@cursor.com>
Two integration-test failures uncovered after the initial commit:
1) GetTilesByRegionAsync outer ORDER BY referenced 'updated_at' but
the inner DISTINCT ON subquery aliased it to 'UpdatedAt' (Postgres
folds to 'updatedat'). DISTINCT ON already guarantees one row per
(latitude, longitude, ...) so the third tiebreak was unreachable;
removed it.
2) Dapper 2.1.35 silently bypasses SqlMapper.TypeHandler<T> for enum
types during read deserialization (Dapper issue #259). The
TileSourceTypeHandler worked for writes but reads fell through to
Enum.TryParse, which cannot map 'google_maps' to GoogleMaps.
Pivoted: TileEntity.Source is now a string (the wire value).
TileSource enum stays as the public producer surface in
Common.Enums; TileSourceConverter (Common.Enums) provides
ToWireValue / FromWireValue / IsValidWireValue at the boundary.
TileSourceTypeHandler deleted; registration removed from
DapperEnumTypeHandlers.RegisterAll.
tile-storage.md Inv-5 amended to document the storage choice.
_docs/LESSONS.md L-001 records the Dapper bypass for future cycles.
Full suite passes (213 unit + integration suite incl. AZ-484
AC-1..AC-5, security SEC-01..SEC-04, AZ-356/362/357).
Co-authored-by: Cursor <cursoragent@cursor.com>
Add per-source tile rows to support multi-provider imagery (Google
Maps + future UAV). Migration 013 (transactional) introduces
source/captured_at columns, backfills existing rows to
(source='google_maps', captured_at=created_at), and replaces the
4-column unique index with a 5-column index that includes source.
TileRepository:
- ColumnList includes source + captured_at
- GetByTileCoordinatesAsync returns most-recent row across sources
(ORDER BY captured_at DESC, updated_at DESC, id DESC)
- GetTilesByRegionAsync uses DISTINCT ON to pick the most-recent
tile per cell, restoring caller-facing row order
- Insert/Update upsert on the new 5-column conflict key
TileSource enum lives in Common.Enums. Snake_case wire format
(google_maps, uav) is enforced by a focused TileSourceTypeHandler
because the generic ToLowerInvariant pattern would emit
"googlemaps", violating contract v1.0.0.
TileService stamps Source=GoogleMaps + CapturedAt=UtcNow on every
new tile. Tile-storage contract is now frozen at v1.0.0.
AC coverage 7/7. New unit + integration tests cover all ACs;
existing 200 unit + 5 smoke tests preserved.
Co-authored-by: Cursor <cursoragent@cursor.com>
Step-9 (new-task) cycle 1 artifacts for the AZ-483 multi-source tile
storage epic. AZ-485 (UAV upload + quality gate) deferred to a future
Step-9 loop and recorded as planned in the dependencies table.
Co-authored-by: Cursor <cursoragent@cursor.com>
Oleksandr Bezdieniezhnykh