TenantAtlas/specs/006-sot-foundations-assignments/data-model.md
ahmido b9c47e7973 feat/006-sot-foundations-assignments (#6)
## Summary
<!-- Kurz: Was ändert sich und warum? -->

## Spec-Driven Development (SDD)
- [ ] Es gibt eine Spec unter `specs/<NNN>-<feature>/`
- [ ] Enthaltene Dateien: `plan.md`, `tasks.md`, `spec.md`
- [ ] Spec beschreibt Verhalten/Acceptance Criteria (nicht nur Implementation)
- [ ] Wenn sich Anforderungen während der Umsetzung geändert haben: Spec/Plan/Tasks wurden aktualisiert

## Implementation
- [ ] Implementierung entspricht der Spec
- [ ] Edge cases / Fehlerfälle berücksichtigt
- [ ] Keine unbeabsichtigten Änderungen außerhalb des Scopes

## Tests
- [ ] Tests ergänzt/aktualisiert (Pest/PHPUnit)
- [ ] Relevante Tests lokal ausgeführt (`./vendor/bin/sail artisan test` oder `php artisan test`)

## Migration / Config / Ops (falls relevant)
- [ ] Migration(en) enthalten und getestet
- [ ] Rollback bedacht (rückwärts kompatibel, sichere Migration)
- [ ] Neue Env Vars dokumentiert (`.env.example` / Doku)
- [ ] Queue/cron/storage Auswirkungen geprüft

## UI (Filament/Livewire) (falls relevant)
- [ ] UI-Flows geprüft
- [ ] Screenshots/Notizen hinzugefügt

## Notes
<!-- Links, Screenshots, Follow-ups, offene Punkte -->

Co-authored-by: Ahmed Darrazi <ahmeddarrazi@adsmac.local>
Reviewed-on: #6
2025-12-25 14:25:16 +00:00

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# Data Model: SoT Foundations & Assignments (006)
This feature reuses existing snapshot and restore run entities, and introduces a consistent JSON “mapping + decisions” report.
## Existing Entities (today)
### BackupSet
- Purpose: Groups a point-in-time capture for a tenant.
- Relationships: hasMany `BackupItem`.
### BackupItem
- Purpose: Stores an immutable snapshot item.
- Key fields (relevant):
- `tenant_id`, `backup_set_id`
- `policy_id` (nullable)
- `policy_identifier` (Graph id)
- `policy_type` (logical type)
- `payload` (raw JSON)
- `metadata` (normalized JSON)
### RestoreRun
- Purpose: Tracks restore preview/execution lifecycle.
- Key fields (relevant):
- `is_dry_run`
- `requested_items` (selection)
- `preview` (dry-run decision report)
- `results` (execution report)
- `metadata` (extra structured info)
## New / Extended Concepts (this feature)
### FoundationSnapshot (logical concept)
Represented as a `backup_items` row.
- `policy_type` (new keys):
- `assignmentFilter`
- `roleScopeTag`
- `notificationMessageTemplate`
- `policy_identifier`: source Graph `id`
- `policy_id`: `null`
- `payload`: raw Graph resource JSON
- `metadata` (proposed, shape):
```json
{
"displayName": "...",
"kind": "assignmentFilter|roleScopeTag|notificationMessageTemplate",
"graph": {
"resource": "deviceManagement/assignmentFilters",
"apiVersion": "v1.0"
}
}
```
### RestoreMappingReport (logical concept)
Stored within `restore_runs.preview`/`restore_runs.results`.
- `mappings.foundations[]` (proposed shape):
```json
{
"type": "assignmentFilter",
"sourceId": "<old-guid>",
"sourceName": "Filter A",
"decision": "mapped_existing|created|created_copy|failed",
"targetId": "<new-guid>",
"targetName": "Filter A (Copy)",
"reason": "..."
}
```
### AssignmentDecisionReport (logical concept)
Stored within `restore_runs.preview`/`restore_runs.results`.
- `assignments[]` entries (proposed shape):
```json
{
"policyType": "settingsCatalogPolicy",
"sourcePolicyId": "...",
"targetPolicyId": "...",
"decision": "applied|skipped|failed",
"reason": "missing_filter_mapping|missing_group_mapping|preview_only|graph_error",
"details": {
"sourceAssignmentCount": 3,
"appliedAssignmentCount": 2
}
}
```
## Relationships / Flow
- `BackupSet` contains both “policy snapshots” and “foundation snapshots” as `BackupItem` rows.
- `RestoreRun` consumes a `BackupSet` and produces:
- foundation mapping report
- policy restore decisions
- assignment application decisions
## Validation & State Transitions
- Restore execution is single-writer per tenant (existing safety requirement FR-009).
- Restore behavior:
- Preview (`is_dry_run=true`): builds mapping/decisions, **no Graph writes**.
- Execute (`is_dry_run=false`): creates missing foundations, restores policies, applies assignments when safe.
- Conditional Access entries are always recorded as preview-only/skipped in execute.