# Organizations Backend

## Purpose

`organizations` is the tenant table itself — each row is a tenant org record that every other
per-organization slice references via `organizationId`. It is a generic-CRUD slice assembled from
the shared factories; the backend is the source of truth for organization records.

## Slice Files (by layer)

- Route: `src/routes/organizations.ts` — `createCrudRouter(controller, { permission: 'organizations' })`.
- Controller: `src/api/controllers/organizations.controller.ts` — `createCrudController(service, { csvFields })`.
- Service (BLL): `src/services/organizations.ts` — `createCrudService(DbApi, { notFoundCode: 'organizationsNotFound' })`.
- Repository (DAL): `src/db/api/organizations.ts` (`OrganizationsDBApi`) — entity-specific
  `create`/`bulkImport`/`update`/`findBy`/`findAll`; `remove`/`deleteByIds`/`findAllAutocomplete`
  delegate to `db/api/shared/repository.ts`.
- Model: `src/db/models/organizations.ts`.
- Shared used: CRUD factories (`services/shared/crud-service.ts`,
  `api/controllers/shared/crud-controller.ts`, `api/http/crud-router.ts`), repository helpers
  (`db/api/shared/repository.ts`), `shared/constants/pagination.ts` (`resolvePagination`),
  `shared/constants/database.ts` (`BULK_IMPORT_TIMESTAMP_STEP_MS`), `db/utils.ts` (`Utils`).

## API

The standard generic-CRUD surface (all under `/api/organizations`, JWT + `${METHOD}_ORGANIZATIONS`
permission, all `200`) — see `backend-architecture.md` for the shared contract:

- `POST /` — body `{ data }`, returns `true`.
- `POST /bulk-import` — multipart CSV file, returns `true`.
- `PUT /:id` — body `{ data, id }` (the service reads the id from the **body**, not the path
  param), returns `true`.
- `DELETE /:id` — returns `true`. Gated by the §3.3 relational policy
  (`assertCanDeleteOrganization` in `routes/organizations.ts`): only `super_admin` /
  `system_admin` / `owner` may delete a company; a `superintendent` is blocked even though it
  holds `DELETE_ORGANIZATIONS`.
- `POST /deleteByIds` — body `{ data: string[] }`, returns `true` (same delete guard).
- `GET /` — query filters, returns `{ rows, count }`; `?filetype=csv` streams a CSV of `csvFields`.
- `GET /count` — returns `{ rows: [], count }`.
- `GET /autocomplete` — `?query&limit&offset`, returns `[{ id, label }]` where `label` is `name`.
- `GET /:id` — returns the record with eager associations (see Data Contract).

`csvFields`: `id`, `name`.

## Access Rules

- JWT required; the whole router is guarded by `checkCrudPermissions('organizations')`, deriving
  `READ_ORGANIZATIONS` / `CREATE_ORGANIZATIONS` / `UPDATE_ORGANIZATIONS` / `DELETE_ORGANIZATIONS`
  per HTTP method.
- Access is granted by role permission or per-user `custom_permissions` (see `permissions.md`).
- Companies are created by the provisioning flow, not this CRUD: creating an `owner` user
  auto-creates the organization (`services/users.ts` -> `OrganizationsDBApi.create`).

## Tenant Scope

This entity **is** the tenant table, so its tenant scoping is unusual relative to the other
slices. The model has no `organizationId` column of its own; rows are tenants, identified by `id`.

- `findAll` still applies the generic scoping pattern: it sets `where.organizationId` to
  `currentUser.organizationId`, then a `globalAccess` role deletes that key. Because the
  `organizations` table has no `organizationId` column, a non-global user's query would filter on
  a non-existent column; only `globalAccess` users reliably list organizations.
- `create`/`update` do **not** set or reassign any organization (no `setOrganization`); they only
  persist `name` (plus `createdById`/`updatedById`).

## Data Contract

Model columns (`paranoid`, soft-delete via `deletedAt`):

- `id` (UUID PK).
- `name` — TEXT, nullable.
- `importHash` (unique), `createdById`, `updatedById`, timestamps.

No ENUM columns.

Associations: `belongsTo` createdBy/updatedBy (users); `hasMany` (all keyed by the child's
`organizationId`): `users_organizations`, `campuses_organization`, `academic_years_organization`,
`grades_organization`, `subjects_organization`, `staff_organization`, `classes_organization`, `class_enrollments_organization`,
`class_subjects_organization`, `timetables_organization`, `timetable_periods_organization`,
`attendance_sessions_organization`, `attendance_records_organization`, `assessments_organization`,
`assessment_results_organization`, `messages_organization`, `message_recipients_organization`,
`documents_organization`. `findBy`/`GET /:id` eager-load all of these in a single `Promise.all`.

List filters (`OrganizationsFilter`): `id`, `name`, `createdAtRange`, plus `field`/`sort` ordering
and `limit`/`page` pagination. `findAll` runs no `include`, so list rows carry no eager
associations.

## Behavior / Notes

- `bulkImport` offsets `createdAt` per row by `BULK_IMPORT_TIMESTAMP_STEP_MS` to preserve order.
- List pagination uses the shared `resolvePagination` defaults (page size 10, capped at 100).
- Note: `OrganizationsFilter` accepts an `active` flag and `findAll` filters on an `active`
  column, but the model has no `active` column; this filter is currently inert (kept for source
  accuracy).

## Tests

None yet.

## Related

- Generic-CRUD contract: `backend-architecture.md`; tenant scoping: `permissions.md`. Every
  per-organization slice references this table via `organizationId` (e.g.   `staff`, `campuses`).
