-- CreateEnum
CREATE TYPE "trunk_status" AS ENUM ('UP', 'DOWN', 'REGISTERED', 'TRYING', 'FAILED', 'UNREGISTERED', 'UNKNOWN');

-- CreateEnum
CREATE TYPE "dtmf_mode" AS ENUM ('RFC2833', 'INFO', 'INBAND');

-- CreateEnum
CREATE TYPE "sip_transport" AS ENUM ('UDP', 'TCP', 'TLS');

-- CreateTable
CREATE TABLE "trunks" (
    "id" UUID NOT NULL,
    "tenant_id" UUID NOT NULL,
    "name" TEXT NOT NULL,
    "description" TEXT,
    "sofia_profile" TEXT NOT NULL DEFAULT 'external',
    "host" TEXT NOT NULL,
    "proxy" TEXT,
    "realm" TEXT,
    "register" BOOLEAN NOT NULL DEFAULT true,
    "username" TEXT,
    "password_enc" TEXT,
    "from_user" TEXT,
    "from_domain" TEXT,
    "register_proxy" TEXT,
    "outbound_proxy" TEXT,
    "expire_seconds" INTEGER NOT NULL DEFAULT 3600,
    "retry_seconds" INTEGER NOT NULL DEFAULT 30,
    "caller_id_name" TEXT,
    "caller_id_number" TEXT,
    "codecs" TEXT NOT NULL DEFAULT 'PCMU,PCMA,OPUS',
    "dtmf_mode" "dtmf_mode" NOT NULL DEFAULT 'RFC2833',
    "ping" BOOLEAN NOT NULL DEFAULT true,
    "ping_frequency" INTEGER NOT NULL DEFAULT 30,
    "transport" "sip_transport" NOT NULL DEFAULT 'UDP',
    "inbound_context" TEXT NOT NULL DEFAULT 'default',
    "max_cps" INTEGER,
    "max_channels" INTEGER,
    "enabled" BOOLEAN NOT NULL DEFAULT true,
    "status" "trunk_status" NOT NULL DEFAULT 'UNKNOWN',
    "status_updated_at" TIMESTAMP(3),
    "created_at" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,
    "updated_at" TIMESTAMP(3) NOT NULL,
    "deleted_at" TIMESTAMP(3),

    CONSTRAINT "trunks_pkey" PRIMARY KEY ("id")
);

-- CreateIndex
CREATE INDEX "trunks_tenant_id_idx" ON "trunks"("tenant_id");

-- CreateIndex
CREATE UNIQUE INDEX "trunks_tenant_id_name_key" ON "trunks"("tenant_id", "name");

-- AddForeignKey
ALTER TABLE "trunks" ADD CONSTRAINT "trunks_tenant_id_fkey" FOREIGN KEY ("tenant_id") REFERENCES "tenants"("id") ON DELETE RESTRICT ON UPDATE CASCADE;

-- Tabela de negocio tenant-scoped: RLS obrigatorio (ver docs/TENANT_ISOLATION.md).
ALTER TABLE "trunks" ENABLE ROW LEVEL SECURITY;
ALTER TABLE "trunks" FORCE ROW LEVEL SECURITY;

CREATE POLICY "tenant_isolation" ON "trunks"
  USING (tenant_id = NULLIF(current_setting('app.current_tenant_id', true), '')::uuid);