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satellite-provider/_docs/02_document/modules/common_configs.md
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[AZ-487] [AZ-488] docs: cycle 2 doc sync (task mode)
Step 13 (Update Docs) for cycle 2. Most cross-cutting docs were
already updated during Step 10 (architecture.md, glossary.md,
components/03_tile_downloader, modules/api_program.md, data_model.md,
contracts/api/uav-tile-upload.md). This commit completes the remaining
module-level + module-layout updates and writes the cycle-2 ripple log.

* modules/common_configs.md: + UavQualityConfig section and
  appsettings-section row (UavQuality).
* modules/common_dtos.md: + UavTileMetadata, UavTileBatchMetadataPayload,
  UavTileBatchUploadResponse, UavTileUploadResultItem, UavTileUploadStatus,
  UavTileRejectReasons (closed enumeration v1.0.0).
* module-layout.md: refresh Common (+ UavQualityConfig + UAV DTOs),
  TileDownloader (+ UavTileQualityGate, UavTileUploadHandler, +
  SixLabors.ImageSharp 3.1.11 PackageReference), and WebApi (+
  Authentication/*, DTOs/UavTileBatchUploadRequest, + JwtBearer 8.0.21
  PackageReference). Updates the "Last Updated" stamp to cycle 2.
* modules/tests_unit.md: replace the obsolete "only a dummy test"
  description; add cycle-2 AZ-487 / AZ-488 test classes
  (AuthenticationServiceCollectionExtensionsTests, JwtTokenFactoryTests,
  UavTileQualityGateTests, UavTileUploadHandlerTests, UavTileFilePathTests,
  PermissionsRequirementTests) + new ProjectReference / package
  references.
* modules/tests_integration.md: + JwtIntegrationTests, UavUploadTests
  (incl. wall-clock-seeded coordinate counter rationale from the Step 11
  fix), and the StubAndErrorContractTests update for the removed 501
  stub.
* ripple_log_cycle2.md (new): cycle-2 reverse-dependency scan results
  showing every importer of the new symbols resolves inside the three
  already-updated components (WebApi, TileDownloader, Common). No
  unexpected ripple, no heuristic fallback needed.

Co-authored-by: Cursor <cursoragent@cursor.com>
2026-05-12 00:04:05 +03:00

75 lines
3.9 KiB
Markdown

# Module: Common/Configs
## Purpose
Configuration POCOs that bind to `appsettings.json` sections via `IOptions<T>` pattern.
## Public Interface
### MapConfig
- `Service` (string): map provider name (e.g., "GoogleMaps")
- `ApiKey` (string): API key for the map provider
### StorageConfig
- `TilesDirectory` (string): base path for tile storage (default: `/tiles`)
- `ReadyDirectory` (string): base path for output files (default: `/ready`)
- `GetTileSubdirectoryPath(int zoomLevel, int tileX, int tileY) → string`: computes bucketed subdirectory path (`{tiles}/{zoom}/{xBucket}/{yBucket}`) using integer division by 1000
- `GetTileFilePath(int zoomLevel, int tileX, int tileY, string timestamp) → string`: computes full file path with timestamped filename (`tile_{z}_{x}_{y}_{ts}.jpg`)
### ProcessingConfig
- `MaxConcurrentDownloads` (int, default: 4): semaphore limit for parallel tile downloads
- `MaxConcurrentRegions` (int, default: 3): parallel region processing workers
- `DefaultZoomLevel` (int, default: 20): fallback zoom level
- `QueueCapacity` (int, default: 100): bounded channel capacity for region request queue
- `DelayBetweenRequestsMs` (int, default: 50): throttle delay between Google Maps requests
- `SessionTokenReuseCount` (int, default: 100): tiles per session token before rotation
### DatabaseConfig
- `ConnectionString` (string): DB connection string (unused — connection string is resolved directly from `IConfiguration` in `Program.cs`)
### UavQualityConfig
Knobs for the 5-rule UAV tile quality gate (`UavTileQualityGate`) and the multipart upload envelope. Bound from the `UavQuality` section in `appsettings.json`.
- `MinBytes` (int, default: `5 * 1024` = 5 KiB): lower bound for Rule 2 (`SIZE_OUT_OF_BAND`).
- `MaxBytes` (int, default: `5 * 1024 * 1024` = 5 MiB): upper bound for Rule 2; also drives `KestrelServerOptions.Limits.MaxRequestBodySize = MaxBatchSize * MaxBytes` and `FormOptions.MultipartBodyLengthLimit` in `Program.cs`.
- `MaxAgeDays` (int, default: 7): Rule 4 cutoff for `CAPTURED_AT_TOO_OLD`.
- `CapturedAtFutureSkewSeconds` (int, default: 30): Rule 4 forward clock-skew tolerance for `CAPTURED_AT_FUTURE`.
- `MinLuminanceVariance` (double, default: 10.0): Rule 5 threshold for `IMAGE_TOO_UNIFORM` measured on a downsampled `L8` image.
- `MaxBatchSize` (int, default: 100): hard cap on per-request batch length; violations return 400 envelope-level (see AC-8, RL-05).
- `LuminanceSampleSize` (int, default: 32): edge length of the square downsample fed into Rule 5; keeps the per-item gate cost bounded.
## Internal Logic
`StorageConfig.GetTileSubdirectoryPath` buckets tiles by dividing X/Y coordinates by 1000, preventing filesystem performance degradation from too many files in one directory.
## Dependencies
None (pure POCOs, no internal imports).
## Consumers
- `Program.cs` — binds from config sections via `builder.Services.Configure<T>()`
- `GoogleMapsDownloaderV2` — reads `MapConfig`, `StorageConfig`, `ProcessingConfig` via `IOptions<T>`
- `RegionService` — reads `StorageConfig`
- `RegionProcessingService` — reads `ProcessingConfig`
- `RouteProcessingService` — reads `StorageConfig`
- `RegionRequestQueue` — receives `QueueCapacity` as constructor param
## Data Models
No domain entities; these are configuration DTOs.
## Configuration
These classes **define** the configuration shape consumed by all services.
| Config Class | appsettings Section |
|-------------|-------------------|
| MapConfig | `MapConfig` |
| StorageConfig | `StorageConfig` |
| ProcessingConfig | `ProcessingConfig` |
| DatabaseConfig | (not wired — connection string read directly) |
| UavQualityConfig | `UavQuality` (added in AZ-488; consumed by `UavTileQualityGate`, `UavTileUploadHandler`, and `Program.cs` request-size limits) |
## External Integrations
None.
## Security
`MapConfig.ApiKey` holds the Google Maps API key. In production, injected via environment variable `MapConfig__ApiKey`.
## Tests
No dedicated tests.