-- Frühere Steam- und Forumskonten eines Spielers.

DO $$ BEGIN
  CREATE TYPE "AliasType" AS ENUM ('STEAM_ID', 'FORUM_NAME');
EXCEPTION WHEN duplicate_object THEN NULL; END $$;

CREATE TABLE IF NOT EXISTS "PlayerAlias" (
    "id" SERIAL NOT NULL,
    "playerId" INTEGER NOT NULL,
    "type" "AliasType" NOT NULL,
    "value" TEXT NOT NULL,
    "note" TEXT,
    "createdAt" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,
    CONSTRAINT "PlayerAlias_pkey" PRIMARY KEY ("id")
);

CREATE UNIQUE INDEX IF NOT EXISTS "PlayerAlias_type_value_key" ON "PlayerAlias"("type", "value");
CREATE INDEX IF NOT EXISTS "PlayerAlias_playerId_idx" ON "PlayerAlias"("playerId");

DO $$ BEGIN
  ALTER TABLE "PlayerAlias" ADD CONSTRAINT "PlayerAlias_playerId_fkey"
    FOREIGN KEY ("playerId") REFERENCES "Player"("id") ON DELETE CASCADE ON UPDATE CASCADE;
EXCEPTION WHEN duplicate_object THEN NULL; END $$;