#!/usr/bin/env bash
set -euo pipefail

ROOT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
CANONICAL_SCHEMA="$ROOT_DIR/frontend/prisma/schema.prisma"
TARGETS=(
  "$ROOT_DIR/omni_chat/prisma/schema.prisma"
  "$ROOT_DIR/omni_outbound/prisma/schema.prisma"
)

if [[ ! -f "$CANONICAL_SCHEMA" ]]; then
  echo "[prisma-check] Canonical schema not found: $CANONICAL_SCHEMA" >&2
  exit 1
fi

status=0

for target in "${TARGETS[@]}"; do
  if [[ ! -f "$target" ]]; then
    echo "[prisma-check] Missing schema: $target" >&2
    status=1
    continue
  fi

  if ! cmp -s "$CANONICAL_SCHEMA" "$target"; then
    echo "[prisma-check] Schema drift detected: $target" >&2
    status=1
  else
    echo "[prisma-check] OK: $target"
  fi
done

# Enforce one rollout point for schema changes:
# only frontend is allowed to run db push/migration commands.
if rg -n "prisma (db push|migrate|migrate deploy|migrate dev)" \
  "$ROOT_DIR/omni_chat" "$ROOT_DIR/omni_outbound" \
  --glob '!**/node_modules/**' \
  --glob '!**/package-lock.json' \
  --glob '!**/README.md' > /tmp/prisma_non_frontend_migrations.txt; then
  echo "[prisma-check] Forbidden Prisma migration/db push command outside frontend:" >&2
  cat /tmp/prisma_non_frontend_migrations.txt >&2
  status=1
else
  echo "[prisma-check] OK: no migration/db push commands in omni services"
fi

if [[ "$status" -ne 0 ]]; then
  echo "[prisma-check] Failed. Run scripts/prisma-sync.sh and commit schema updates." >&2
  exit "$status"
fi

echo "[prisma-check] Passed."