/// <reference path="../pb_data/types.d.ts" />

// Remove the last of the 18+ scaffolding: the `nsfwEnabled` flag on `users`, the
// rule clause that guarded it, and `adult` as a publishable release variant.
//
// WHY NOW: nothing reads the flag any more. `/api/amber/whoami` stopped
// returning it, `GET /api/update/manifest` always serves `clean`, the `releases`
// read rule stopped mentioning it in migration 1793000000 (the nine 18+ rows,
// 437 MB, were deleted then), and the web settings page stopped showing an 18+
// source field in this same change. What was left was a per-account flag nobody
// writes and nobody reads, sitting on the family's accounts and appearing in
// every schema dump, README table and access-rule review as if it still gated
// something. A flag that looks like a protection but protects nothing is worse
// than no flag: the next person to read the schema has to prove it is dead.
//
// `users.updateRule` loses `@request.body.nsfwEnabled:isset = false`. The clause
// was the structural guarantee that a signed-in person could not flip their own
// flag. With the field gone there is nothing to flip, and PocketBase rejects an
// unknown field on write anyway. `createRule` is already superuser-only (null,
// migration 1789000000), so it needs no change.
//
// `releases.variant` KEEPS EXISTING and keeps being required -- only `adult`
// leaves its allowed values. Every installed Amber compares the manifest's
// variant against its own and refuses a mismatch **silently**, so removing the
// field would strand every install with no error to see. Publishing stays
// exactly as it is, minus a choice nobody can make any more.
//
// The down migration restores all three, so an instance can be rolled back. It
// cannot restore the per-account VALUES of the flag: dropping a field drops its
// data. That is intended -- the owner asked for the 18+ leftovers to be gone,
// and the only account that had it set was a test account being retired with it.

migrate(
  (app) => {
    const users = app.findCollectionByNameOrId("users")
    users.updateRule = "id = @request.auth.id"
    users.fields.removeByName("nsfwEnabled")
    app.save(users)

    const releases = app.findCollectionByNameOrId("releases")
    const variant = releases.fields.getByName("variant")
    variant.values = ["clean"]
    app.save(releases)
  },
  (app) => {
    const users = app.findCollectionByNameOrId("users")
    users.fields.add(new BoolField({ name: "nsfwEnabled" }))
    users.updateRule =
      "id = @request.auth.id && @request.body.nsfwEnabled:isset = false"
    app.save(users)

    const releases = app.findCollectionByNameOrId("releases")
    const variant = releases.fields.getByName("variant")
    variant.values = ["clean", "adult"]
    app.save(releases)
  },
)