ALTER TABLE "student_enrollments"
  ADD COLUMN "course_id" UUID;

UPDATE "student_enrollments" enrollment
SET "course_id" = course."id"
FROM "courses" course
WHERE course."slug" = 'futuredrive-autonomy-basic'
  AND course."is_active" = true
  AND enrollment."course_id" IS NULL;

ALTER TABLE "student_enrollments"
  ALTER COLUMN "course_id" SET NOT NULL;

ALTER TABLE "student_enrollments"
  ADD CONSTRAINT "student_enrollments_course_id_fkey"
  FOREIGN KEY ("course_id")
  REFERENCES "courses"("id")
  ON DELETE CASCADE
  ON UPDATE CASCADE;

DROP INDEX IF EXISTS "student_enrollments_user_id_organization_name_key";

CREATE UNIQUE INDEX "student_enrollments_user_id_course_id_key"
  ON "student_enrollments"("user_id", "course_id");

CREATE INDEX "student_enrollments_course_id_status_idx"
  ON "student_enrollments"("course_id", "status");

DROP INDEX IF EXISTS "instructor_curriculum_settings_organization_default_key";
DROP INDEX IF EXISTS "instructor_curriculum_settings_organization_group_key";

CREATE UNIQUE INDEX "instructor_curriculum_settings_course_default_key"
  ON "instructor_curriculum_settings"("organization_name", "course_id")
  WHERE "group_id" IS NULL;

CREATE UNIQUE INDEX "instructor_curriculum_settings_course_group_key"
  ON "instructor_curriculum_settings"("organization_name", "course_id", "group_id")
  WHERE "group_id" IS NOT NULL;