ALTER TABLE public.caveat RENAME TO prohibition;
ALTER TABLE public.prohibition RENAME CONSTRAINT uniq__caveat TO uniq__prohibition;
ALTER INDEX idx__public__caveat__user_id    RENAME TO idx__public__prohibition__user_id;
ALTER INDEX idx__public__caveat__value      RENAME TO idx__public__prohibition__value;
ALTER INDEX idx__public__caveat__created_ts RENAME TO idx__public__prohibition__created_ts;
ALTER INDEX idx__public__caveat__updated_ts RENAME TO idx__public__prohibition__updated_ts;

ALTER TABLE public.agreement_caveat RENAME TO agreement_prohibition;
ALTER TABLE public.agreement_prohibition RENAME CONSTRAINT uniq__agreement_caveat TO uniq__agreement_prohibition;
ALTER TABLE public.agreement_prohibition RENAME COLUMN caveat_id TO prohibition_id;
ALTER TABLE public.agreement_prohibition
    DROP CONSTRAINT IF EXISTS agreement_caveat_caveat_id_fkey,
    ADD CONSTRAINT agreement_prohibition_prohibition_id_fkey
        FOREIGN KEY (prohibition_id)
        REFERENCES public.prohibition(id);
ALTER INDEX idx__public__agreement_caveat__user_id       RENAME TO idx__public__agreement_prohibition__user_id;
ALTER INDEX idx__public__agreement_caveat__agreement_id  RENAME TO idx__public__agreement_prohibition__agreement_id;
ALTER INDEX idx__public__agreement_caveat__caveat_id     RENAME TO idx__public__agreement_prohibition__prohibition_id;
ALTER INDEX idx__public__agreement_caveat__created_ts    RENAME TO idx__public__agreement_prohibition__created_ts;
ALTER INDEX idx__public__agreement_caveat__updated_ts    RENAME TO idx__public__agreement_prohibition__updated_ts;

ALTER TABLE agreement_content ADD COLUMN key VARCHAR(255) UNIQUE;
CREATE INDEX idx__agreement_content__key   ON public.agreement_content (key);
ALTER TABLE agreement_content ADD COLUMN agreement_uuid UUID UNIQUE NOT NULL DEFAULT '00000000-0000-0000-0000-000000000000';

ALTER TABLE purpose ALTER COLUMN user_id DROP NOT NULL;
ALTER TABLE prohibition ALTER COLUMN user_id DROP NOT NULL;
ALTER TABLE role ALTER COLUMN user_id DROP NOT NULL;
ALTER TABLE agreement_purpose ALTER COLUMN user_id DROP NOT NULL;
ALTER TABLE agreement_prohibition ALTER COLUMN user_id DROP NOT NULL;
ALTER TABLE agreement_role ALTER COLUMN user_id DROP NOT NULL;

ALTER TABLE public.purpose DROP CONSTRAINT uniq__purpose;
CREATE UNIQUE INDEX uniq__purpose ON public.purpose (COALESCE(user_id, -1), value);
ALTER TABLE public.prohibition DROP CONSTRAINT uniq__prohibition;
CREATE UNIQUE INDEX uniq__prohibition ON public.prohibition (COALESCE(user_id, -1), value);
ALTER TABLE public.role DROP CONSTRAINT uniq__role;
CREATE UNIQUE INDEX uniq__role ON public.role (COALESCE(user_id, -1), value);
ALTER TABLE public.agreement_purpose DROP CONSTRAINT uniq__agreement_purpose;
CREATE UNIQUE INDEX uniq__agreement_purpose ON public.agreement_purpose (COALESCE(user_id, -1), agreement_id, purpose_id);
ALTER TABLE public.agreement_prohibition DROP CONSTRAINT uniq__agreement_prohibition;
CREATE UNIQUE INDEX uniq__agreement_prohibition ON public.agreement_prohibition (COALESCE(user_id, -1), agreement_id, prohibition_id);
ALTER TABLE public.agreement_role DROP CONSTRAINT uniq__agreement_role;
CREATE UNIQUE INDEX uniq__agreement_role ON public.agreement_role (COALESCE(user_id, -1), agreement_id, role_id);

ALTER TABLE public.agreement ADD COLUMN context VARCHAR(255) DEFAULT 'https://protocol.jlinc.org/context/jlinc-v7.jsonld';