CREATE TABLE "cards" (
	"id" uuid PRIMARY KEY DEFAULT gen_random_uuid() NOT NULL,
	"deck_id" uuid NOT NULL,
	"front" text NOT NULL,
	"back" text NOT NULL,
	"state" smallint DEFAULT 0 NOT NULL,
	"due" timestamp with time zone DEFAULT now() NOT NULL,
	"stability" real DEFAULT 0 NOT NULL,
	"difficulty" real DEFAULT 0 NOT NULL,
	"elapsed_days" integer DEFAULT 0 NOT NULL,
	"scheduled_days" integer DEFAULT 0 NOT NULL,
	"reps" integer DEFAULT 0 NOT NULL,
	"lapses" integer DEFAULT 0 NOT NULL,
	"last_review" timestamp with time zone,
	"created_at" timestamp with time zone DEFAULT now() NOT NULL,
	"updated_at" timestamp with time zone DEFAULT now() NOT NULL,
	"deleted_at" timestamp with time zone,
	"sync_version" integer DEFAULT 0 NOT NULL
);
--> statement-breakpoint
CREATE TABLE "decks" (
	"id" uuid PRIMARY KEY DEFAULT gen_random_uuid() NOT NULL,
	"user_id" uuid NOT NULL,
	"name" varchar(255) NOT NULL,
	"description" text,
	"new_cards_per_day" integer DEFAULT 20 NOT NULL,
	"created_at" timestamp with time zone DEFAULT now() NOT NULL,
	"updated_at" timestamp with time zone DEFAULT now() NOT NULL,
	"deleted_at" timestamp with time zone,
	"sync_version" integer DEFAULT 0 NOT NULL
);
--> statement-breakpoint
CREATE TABLE "review_logs" (
	"id" uuid PRIMARY KEY DEFAULT gen_random_uuid() NOT NULL,
	"card_id" uuid NOT NULL,
	"user_id" uuid NOT NULL,
	"rating" smallint NOT NULL,
	"state" smallint NOT NULL,
	"scheduled_days" integer NOT NULL,
	"elapsed_days" integer NOT NULL,
	"reviewed_at" timestamp with time zone DEFAULT now() NOT NULL,
	"duration_ms" integer,
	"sync_version" integer DEFAULT 0 NOT NULL
);
--> statement-breakpoint
CREATE TABLE "users" (
	"id" uuid PRIMARY KEY DEFAULT gen_random_uuid() NOT NULL,
	"username" varchar(255) NOT NULL,
	"password_hash" varchar(255) NOT NULL,
	"created_at" timestamp with time zone DEFAULT now() NOT NULL,
	"updated_at" timestamp with time zone DEFAULT now() NOT NULL,
	CONSTRAINT "users_username_unique" UNIQUE("username")
);
--> statement-breakpoint
ALTER TABLE "cards" ADD CONSTRAINT "cards_deck_id_decks_id_fk" FOREIGN KEY ("deck_id") REFERENCES "public"."decks"("id") ON DELETE no action ON UPDATE no action;--> statement-breakpoint
ALTER TABLE "decks" ADD CONSTRAINT "decks_user_id_users_id_fk" FOREIGN KEY ("user_id") REFERENCES "public"."users"("id") ON DELETE no action ON UPDATE no action;--> statement-breakpoint
ALTER TABLE "review_logs" ADD CONSTRAINT "review_logs_card_id_cards_id_fk" FOREIGN KEY ("card_id") REFERENCES "public"."cards"("id") ON DELETE no action ON UPDATE no action;--> statement-breakpoint
ALTER TABLE "review_logs" ADD CONSTRAINT "review_logs_user_id_users_id_fk" FOREIGN KEY ("user_id") REFERENCES "public"."users"("id") ON DELETE no action ON UPDATE no action;