BEGIN;

--
-- Function: gen_random_uuid_v7()
-- Source: https://gist.github.com/kjmph/5bd772b2c2df145aa645b837da7eca74
-- License: MIT (copyright notice included on the generator source code).
--
create or replace function gen_random_uuid_v7()
returns uuid
as $$
begin
  -- use random v4 uuid as starting point (which has the same variant we need)
  -- then overlay timestamp
  -- then set version 7 by flipping the 2 and 1 bit in the version 4 string
  return encode(
    set_bit(
      set_bit(
        overlay(uuid_send(gen_random_uuid())
                placing substring(int8send(floor(extract(epoch from clock_timestamp()) * 1000)::bigint) from 3)
                from 1 for 6
        ),
        52, 1
      ),
      53, 1
    ),
    'hex')::uuid;
end
$$
language plpgsql
volatile;

--
-- ACTION CREATE TABLE
--
CREATE TABLE "review_log" (
    "id" uuid PRIMARY KEY DEFAULT gen_random_uuid_v7(),
    "spaceId" bigint,
    "cardId" uuid NOT NULL,
    "rating" bigint NOT NULL,
    "reviewedAt" timestamp without time zone NOT NULL,
    "durationMs" bigint NOT NULL
);

-- Indexes
CREATE INDEX "review_log_space_idx" ON "review_log" USING btree ("spaceId");
CREATE INDEX "review_log_card_idx" ON "review_log" USING btree ("cardId", "reviewedAt");

--
-- ACTION CREATE FOREIGN KEY
--
ALTER TABLE ONLY "review_log"
    ADD CONSTRAINT "review_log_fk_0"
    FOREIGN KEY("spaceId")
    REFERENCES "offline_sync_spaces"("id")
    ON DELETE CASCADE
    ON UPDATE NO ACTION;
ALTER TABLE ONLY "review_log"
    ADD CONSTRAINT "review_log_fk_1"
    FOREIGN KEY("cardId")
    REFERENCES "card"("id")
    ON DELETE CASCADE
    ON UPDATE NO ACTION
    DEFERRABLE INITIALLY DEFERRED;


--
-- MIGRATION VERSION FOR halkyon_learn
--
INSERT INTO "serverpod_migrations" ("module", "version", "timestamp")
    VALUES ('halkyon_learn', '20260930145136285-reviews', now())
    ON CONFLICT ("module")
    DO UPDATE SET "version" = '20260930145136285-reviews', "timestamp" = now();

--
-- MIGRATION VERSION FOR serverpod
--
INSERT INTO "serverpod_migrations" ("module", "version", "timestamp")
    VALUES ('serverpod', '20260824182259319', now())
    ON CONFLICT ("module")
    DO UPDATE SET "version" = '20260824182259319', "timestamp" = now();

--
-- MIGRATION VERSION FOR serverpod_auth_idp
--
INSERT INTO "serverpod_migrations" ("module", "version", "timestamp")
    VALUES ('serverpod_auth_idp', '20260924105404509', now())
    ON CONFLICT ("module")
    DO UPDATE SET "version" = '20260924105404509', "timestamp" = now();

--
-- MIGRATION VERSION FOR serverpod_offline_sync
--
INSERT INTO "serverpod_migrations" ("module", "version", "timestamp")
    VALUES ('serverpod_offline_sync', '20260914143806119', now())
    ON CONFLICT ("module")
    DO UPDATE SET "version" = '20260914143806119', "timestamp" = now();

--
-- MIGRATION VERSION FOR serverpod_auth_core
--
INSERT INTO "serverpod_migrations" ("module", "version", "timestamp")
    VALUES ('serverpod_auth_core', '20260924105232991', now())
    ON CONFLICT ("module")
    DO UPDATE SET "version" = '20260924105232991', "timestamp" = now();


COMMIT;