# Platform Super-Admin — Phase 1 Design

**Status:** Approved
**Date:** 2026-08-15
**Audience:** Internal admin & risk team ("super puper user")

## Purpose

A cross-tenant view for internal admin/risk staff: see every project (store/tenant) on the
platform, drill into one, and review its access list, audit log, admin edit history, and
purchase history. Read-only in this phase.

Editing project data / impersonating a store's admin ("edit all", with a per-change "notify
this store's admin" toggle) is explicitly **out of scope** for this phase — see
[Phase 2](#phase-2-out-of-scope-here) below. Phase 1 exists first because Phase 2's edit and
notify plumbing depends on the tenant-context switch this phase builds.

## Non-goals (Phase 1)

- No editing of any tenant's data.
- No impersonation of a store's admin.
- No "notify store admin" mechanism (that's a Phase 2 concern, tied to edit actions that
  don't exist yet).
- No real backend — this repo is frontend-only; the backend contract is specified here for
  whoever owns that service, not implemented here.

## Architecture

- New top-level feature module: `src/app/features/platform-admin/`.
- New route tree `/platform-admin/**`, own shell/layout. **Not** nested under any tenant's
  `/admin/**` — a project is not "logged into" the way a store admin is.
- New `platformAdminAuthGuard` (parallel to, but sharing no state with, `adminAuthGuard` in
  `core/admin-auth/admin-auth.guard.ts`).
- `PlatformAuthService` — session/login state for the super-admin, backed by a
  `PlatformAuthGateway` interface: `login(credentials)`, `logout()`, `session()`.
  - `PlatformAuthLocalGateway` — dev-only implementation. Reads the expected credential from
    a **git-ignored** local file (`platform-auth.local-secret.ts`, added to `.gitignore`),
    never committed, never present in a production build path.
  - `PlatformAuthApiGateway` — later swap-in once the backend endpoint exists; same
    interface, no caller changes needed.

## Data model

```ts
interface PlatformProjectSummary {
  id: UUID;
  name: string;
  slug: string;
  host: string;
  status: 'active' | 'suspended';
  createdAt: number;
  adminCount: number;
  lastActivityAt: number | null;
}

interface PlatformProjectAccessEntry {
  userId: UUID;
  displayName: string;
  telegramUsername: string;
  roleId: string; // maps to existing AdminRole / ROLE_PERMISSIONS
}

type PlatformProjectHistoryEntry =
  | { kind: 'access'; tenantId: UUID; actorLabel: string; timestamp: number; summary: string }
  | { kind: 'edit'; tenantId: UUID; actorLabel: string; timestamp: number; summary: string }
  | { kind: 'purchase'; tenantId: UUID; actorLabel: string; timestamp: number; summary: string };
```

- `PlatformProjectSummary[]` is produced by `PlatformProjectsGateway.list()`, which aggregates
  the existing `TenantConfig` fixture list plus derived stats. Mock gateway now; real
  aggregation is a backend concern later.
- `PlatformProjectAccessEntry` reuses the existing `AdminRole` / `ROLE_PERMISSIONS` shape from
  `core/auth/models/permission.model.ts` — no new role system.
- `PlatformProjectHistoryEntry` is a discriminated union covering all three history types the
  user asked for (access/audit, admin edit history, purchase history). Mock gateway simulates
  aggregation from existing per-tenant sources (e.g. the pattern in
  `AdminDashboardHistoryService`, `admin-transactions`); real aggregation is a backend concern.
- Every super-admin **view** into a project also writes its own `kind: 'access'` entry
  (`platform.viewedProject`) — the risk team needs to know who looked at what, not just what
  changed.

## Components / pages

- `PlatformProjectsListPageComponent` — table of all projects: name, status, admin count,
  last activity. Search/filter by status.
- `PlatformProjectDetailPageComponent` — project overview stats, then tabs:
  - **Access** — `PlatformProjectAccessEntry[]` for that tenant.
  - **Audit Log** — `history` filtered to `kind: 'access'`.
  - **Edit History** — `history` filtered to `kind: 'edit'`.
  - **Purchase History** — `history` filtered to `kind: 'purchase'`.
  - All read-only in this phase.

## Security

- `platformAdminAuthGuard` denies unless the session carries `platform.superadmin`. Like the
  existing `AdminPermissionsService`, the frontend check is defense-in-depth only — real
  enforcement must happen server-side once the backend endpoint exists. This is called out
  explicitly so it's never mistaken for the source of truth.
- No credential is ever hardcoded in committed source. Dev-only credential lives in a
  git-ignored local file; production auth goes through the real backend endpoint below.
- Session timeout for platform-admin: 15 minutes idle (shorter than regular tenant-admin
  sessions — higher-privilege session, smaller blast radius if a session is left open).
- Every super-admin action (including read-only views) is itself audit-logged.
- After implementation, run `/security-audit` on this feature specifically before it ships.

### Backend contract (for whoever owns that service — not implemented in this repo)

Add to `BACKEND-API-REFERENCE.md`:

- `POST /platform-admin/auth` — verifies a hashed credential server-side, returns a session
  token scoped to `platform.superadmin`. Never a plaintext credential check in a client-shipped
  artifact.
- `GET /platform-admin/projects` — returns `PlatformProjectSummary[]`.
- `GET /platform-admin/projects/:id/history` — returns `PlatformProjectHistoryEntry[]` for
  that tenant, paginated.

## Testing

- Unit tests: `platformAdminAuthGuard`, `PlatformProjectsGateway` (mock), history-aggregation
  mapping logic.
- No E2E in this phase — no real backend to exercise end-to-end yet.

## Phase 2 (out of scope here)

A separate spec/plan cycle, once Phase 1 ships:

- Full edit / impersonation: super-admin acts as a tenant's admin across every existing admin
  module (products, orders, categories, settings, etc.), reusing those modules under a
  tenant-context switch.
- Per-edit-action **"notify this store's admin about this change"** checkbox, **default
  unchecked**. Uses the existing in-app notification pattern (the one behind
  `admin-order-watcher.service.ts`'s unread-badge flow) so the affected tenant's admin sees it
  in their notification feed. Unchecked-by-default matters: some super-admin edits are
  discreet technical fixes where alerting the store admin would be noise or a reputational
  concern, not every edit should ping them.
- This phase needs the tenant-context switch and audit-logging plumbing this Phase 1 spec
  establishes, which is why it's sequenced after.
