-- pgTAP: auth.users role/aud defaulting (migration 013)
-- Run with: psql -U postgres -d postgres -f supabase/tests/008_auth_user_role_default.sql
--
-- Covers the bug found on ambrosio (2026-04-15): GoTrue v2.158.1 inserts
-- OIDC-created users into auth.users with empty-string `role` and `aud`,
-- which later makes PostgREST's `SET LOCAL role = ''` fail with
-- `role "" does not exist`. Migration 013 adds a BEFORE INSERT trigger +
-- backfills the existing rows.

CREATE EXTENSION IF NOT EXISTS pgtap;

BEGIN;
SELECT plan(7);

-- ── Existence assertions ────────────────────────────────────────────────
SELECT has_function(
    'auth', 'ensure_user_role_default', ARRAY[]::text[],
    'ensure_user_role_default trigger function exists in the auth schema'
);

SELECT has_trigger(
    'auth', 'users', 'ensure_role_default',
    'BEFORE INSERT trigger ensure_role_default exists on auth.users'
);

-- ── Backfill assertion ──────────────────────────────────────────────────
SELECT ok(
    (SELECT count(*) FROM auth.users WHERE role IS NULL OR role = '' OR aud IS NULL OR aud = '') = 0,
    'No pre-existing auth.users row has an empty role or aud'
);

-- ── Trigger behavior ────────────────────────────────────────────────────
-- Insert a synthetic user with empty role/aud; the trigger should fill both.
-- Drop the AFTER trigger locally so we don't exercise handle_new_user's
-- side-effects (tested elsewhere, not the focus here).
ALTER TABLE auth.users DISABLE TRIGGER on_auth_user_created;

-- NEW row with empty strings
INSERT INTO auth.users (instance_id, id, email, role, aud)
VALUES (
    '00000000-0000-0000-0000-000000000000',
    'f0000000-0000-0000-0000-000000000001',
    'empty-role@test.local',
    '',
    ''
);
SELECT is(
    (SELECT role FROM auth.users WHERE id = 'f0000000-0000-0000-0000-000000000001'),
    'authenticated',
    'Empty role on INSERT is defaulted to authenticated'
);
SELECT is(
    (SELECT aud FROM auth.users WHERE id = 'f0000000-0000-0000-0000-000000000001'),
    'authenticated',
    'Empty aud on INSERT is defaulted to authenticated'
);

-- NEW row with NULL values
INSERT INTO auth.users (instance_id, id, email, role, aud)
VALUES (
    '00000000-0000-0000-0000-000000000000',
    'f0000000-0000-0000-0000-000000000002',
    'null-role@test.local',
    NULL,
    NULL
);
SELECT is(
    (SELECT role FROM auth.users WHERE id = 'f0000000-0000-0000-0000-000000000002'),
    'authenticated',
    'NULL role on INSERT is defaulted to authenticated'
);

-- Explicit non-empty role is preserved (trigger should only fill when empty).
INSERT INTO auth.users (instance_id, id, email, role, aud)
VALUES (
    '00000000-0000-0000-0000-000000000000',
    'f0000000-0000-0000-0000-000000000003',
    'custom-role@test.local',
    'service_role',
    'authenticated'
);
SELECT is(
    (SELECT role FROM auth.users WHERE id = 'f0000000-0000-0000-0000-000000000003'),
    'service_role',
    'Explicit role is preserved by the trigger'
);

SELECT * FROM finish();
ROLLBACK;