-- Monthly Parça Uzmanları prizes: one row per (TR-month, rank). Written by the
-- expert-rewards cron (1st of month 00:00 Europe/Istanbul) when it closes the
-- finished season and grants the top 3 voters a subscription extension
-- (30/15/7 days). The unique index is the run-once guard — a re-run for the
-- same period inserts nothing, so days are never granted twice.
CREATE TABLE "oem_expert_rewards" (
	"id" uuid PRIMARY KEY DEFAULT gen_random_uuid() NOT NULL,
	"period_start" timestamp with time zone NOT NULL,
	"user_id" uuid NOT NULL,
	"rank" integer NOT NULL,
	"points" integer NOT NULL,
	"reward_days" integer NOT NULL,
	"granted_at" timestamp with time zone DEFAULT now() NOT NULL
);
--> statement-breakpoint
ALTER TABLE "oem_expert_rewards" ADD CONSTRAINT "oem_expert_rewards_user_id_users_id_fk" FOREIGN KEY ("user_id") REFERENCES "public"."users"("id") ON DELETE cascade ON UPDATE no action;--> statement-breakpoint
CREATE UNIQUE INDEX "oem_expert_rewards_period_rank_idx" ON "oem_expert_rewards" USING btree ("period_start","rank");--> statement-breakpoint
CREATE INDEX "oem_expert_rewards_user_id_idx" ON "oem_expert_rewards" USING btree ("user_id");