CREATE TABLE IF NOT EXISTS "telephony_trunks" (
    "id" uuid PRIMARY KEY DEFAULT gen_random_uuid() NOT NULL,
    "tenant_id" bigint NOT NULL,
    "provider" text DEFAULT 'telekom' NOT NULL,
    "enabled" boolean DEFAULT false NOT NULL,
    "registrar" text DEFAULT 'tel.t-online.de' NOT NULL,
    "sip_user" text,
    "auth_user" text,
    "password" text,
    "caller_id" text,
    "inbound_extension" text DEFAULT '1001' NOT NULL,
    "outbound_prefix" text DEFAULT '0' NOT NULL,
    "created_at" timestamp with time zone DEFAULT now() NOT NULL,
    "updated_at" timestamp with time zone,
    "created_by" uuid,
    "updated_by" uuid
);

DO $$
BEGIN
    IF NOT EXISTS (
        SELECT 1 FROM pg_constraint WHERE conname = 'telephony_trunks_tenant_id_tenants_id_fk'
    ) THEN
        ALTER TABLE "telephony_trunks"
            ADD CONSTRAINT "telephony_trunks_tenant_id_tenants_id_fk"
            FOREIGN KEY ("tenant_id") REFERENCES "public"."tenants"("id")
            ON DELETE cascade ON UPDATE no action;
    END IF;

    IF NOT EXISTS (
        SELECT 1 FROM pg_constraint WHERE conname = 'telephony_trunks_created_by_auth_users_id_fk'
    ) THEN
        ALTER TABLE "telephony_trunks"
            ADD CONSTRAINT "telephony_trunks_created_by_auth_users_id_fk"
            FOREIGN KEY ("created_by") REFERENCES "public"."auth_users"("id")
            ON DELETE no action ON UPDATE no action;
    END IF;

    IF NOT EXISTS (
        SELECT 1 FROM pg_constraint WHERE conname = 'telephony_trunks_updated_by_auth_users_id_fk'
    ) THEN
        ALTER TABLE "telephony_trunks"
            ADD CONSTRAINT "telephony_trunks_updated_by_auth_users_id_fk"
            FOREIGN KEY ("updated_by") REFERENCES "public"."auth_users"("id")
            ON DELETE no action ON UPDATE no action;
    END IF;
END $$;

CREATE UNIQUE INDEX IF NOT EXISTS "telephony_trunks_tenant_provider_idx"
    ON "telephony_trunks" USING btree ("tenant_id", "provider");