-- Additive union of Zelosity attendance/owner models with invite-only WhatsApp login.
-- Safe on Hostycare: use IF NOT EXISTS / ADD COLUMN only. Do not drop data.

ALTER TABLE "AppUser" ALTER COLUMN "email" DROP NOT NULL;

ALTER TABLE "AppUser" ADD COLUMN IF NOT EXISTS "phoneE164" TEXT;
ALTER TABLE "AppUser" ADD COLUMN IF NOT EXISTS "preferredLanguage" TEXT NOT NULL DEFAULT 'en';
ALTER TABLE "AppUser" ADD COLUMN IF NOT EXISTS "whatsappVerifiedAt" TIMESTAMP(3);
ALTER TABLE "AppUser" ADD COLUMN IF NOT EXISTS "invitedAt" TIMESTAMP(3);
ALTER TABLE "AppUser" ADD COLUMN IF NOT EXISTS "profileCompletedAt" TIMESTAMP(3);
ALTER TABLE "AppUser" ADD COLUMN IF NOT EXISTS "termsAcceptedAt" TIMESTAMP(3);
ALTER TABLE "AppUser" ADD COLUMN IF NOT EXISTS "privacyAcceptedAt" TIMESTAMP(3);
ALTER TABLE "AppUser" ADD COLUMN IF NOT EXISTS "whatsappNotificationsOptInAt" TIMESTAMP(3);
ALTER TABLE "AppUser" ADD COLUMN IF NOT EXISTS "legacyMatchedAt" TIMESTAMP(3);

CREATE UNIQUE INDEX IF NOT EXISTS "AppUser_phoneE164_key" ON "AppUser"("phoneE164");

CREATE TABLE IF NOT EXISTS "WhatsappAuthCode" (
    "id" TEXT NOT NULL,
    "codeHash" TEXT NOT NULL,
    "phoneE164" TEXT NOT NULL,
    "userId" TEXT,
    "attempts" INTEGER NOT NULL DEFAULT 0,
    "consumedAt" TIMESTAMP(3),
    "expiresAt" TIMESTAMP(3) NOT NULL,
    "createdAt" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,

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

CREATE UNIQUE INDEX IF NOT EXISTS "WhatsappAuthCode_codeHash_key" ON "WhatsappAuthCode"("codeHash");
CREATE INDEX IF NOT EXISTS "WhatsappAuthCode_phoneE164_idx" ON "WhatsappAuthCode"("phoneE164");
CREATE INDEX IF NOT EXISTS "WhatsappAuthCode_expiresAt_idx" ON "WhatsappAuthCode"("expiresAt");

DO $$
BEGIN
  IF NOT EXISTS (
    SELECT 1 FROM pg_constraint WHERE conname = 'WhatsappAuthCode_userId_fkey'
  ) THEN
    ALTER TABLE "WhatsappAuthCode"
      ADD CONSTRAINT "WhatsappAuthCode_userId_fkey"
      FOREIGN KEY ("userId") REFERENCES "AppUser"("id") ON DELETE CASCADE ON UPDATE CASCADE;
  END IF;
END $$;

ALTER TABLE "AttendanceRecord" ADD COLUMN IF NOT EXISTS "memberPhone" TEXT NOT NULL DEFAULT '';
CREATE INDEX IF NOT EXISTS "AttendanceRecord_memberPhone_idx" ON "AttendanceRecord"("memberPhone");