-- CreateEnum
CREATE TYPE "ConversationStatus" AS ENUM ('OPEN', 'CLOSED', 'PENDING');

-- CreateEnum
CREATE TYPE "SenderType" AS ENUM ('CUSTOMER', 'STAFF');

-- CreateTable
CREATE TABLE "Customer" (
    "id" TEXT NOT NULL,
    "orgId" UUID NOT NULL,
    "name" TEXT,
    "email" TEXT,
    "phone" TEXT,
    "createdAt" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,

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

-- CreateTable
CREATE TABLE "Conversation" (
    "id" TEXT NOT NULL,
    "orgId" UUID NOT NULL,
    "customerId" TEXT NOT NULL,
    "assignedTo" UUID,
    "status" "ConversationStatus" NOT NULL DEFAULT 'OPEN',
    "createdAt" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,
    "updatedAt" TIMESTAMP(3) NOT NULL,

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

-- CreateTable
CREATE TABLE "Message" (
    "id" TEXT NOT NULL,
    "conversationId" TEXT NOT NULL,
    "senderType" "SenderType" NOT NULL,
    "senderId" TEXT,
    "content" TEXT NOT NULL,
    "createdAt" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,

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

-- AddForeignKey
ALTER TABLE "Customer" ADD CONSTRAINT "Customer_orgId_fkey" FOREIGN KEY ("orgId") REFERENCES "Organization"("id") ON DELETE RESTRICT ON UPDATE CASCADE;

-- AddForeignKey
ALTER TABLE "Conversation" ADD CONSTRAINT "Conversation_orgId_fkey" FOREIGN KEY ("orgId") REFERENCES "Organization"("id") ON DELETE RESTRICT ON UPDATE CASCADE;

-- AddForeignKey
ALTER TABLE "Conversation" ADD CONSTRAINT "Conversation_customerId_fkey" FOREIGN KEY ("customerId") REFERENCES "Customer"("id") ON DELETE RESTRICT ON UPDATE CASCADE;

-- AddForeignKey
ALTER TABLE "Conversation" ADD CONSTRAINT "Conversation_assignedTo_fkey" FOREIGN KEY ("assignedTo") REFERENCES "User"("id") ON DELETE SET NULL ON UPDATE CASCADE;

-- AddForeignKey
ALTER TABLE "Message" ADD CONSTRAINT "Message_conversationId_fkey" FOREIGN KEY ("conversationId") REFERENCES "Conversation"("id") ON DELETE RESTRICT ON UPDATE CASCADE;