#!/usr/bin/env bash
# Déploiement prod sur 192.168.1.190 — exécuter SUR LE SERVEUR (runner docker-host).
set -euo pipefail

ROOT="${DEPLOY_ROOT:-/opt/memento}"
ARTIFACT_TGZ="${ARTIFACT_TGZ:-}"
EXPECTED_COMMIT="${EXPECTED_COMMIT:-}"

cd "$ROOT"
git config --global --add safe.directory "$ROOT" 2>/dev/null || true
git fetch origin main
git reset --hard origin/main
export GIT_COMMIT="$(git rev-parse HEAD)"
echo "=== Deploy $GIT_COMMIT ==="

if [ -n "$EXPECTED_COMMIT" ] && [ "$GIT_COMMIT" != "$EXPECTED_COMMIT" ]; then
  echo "ERROR: git HEAD $GIT_COMMIT != expected $EXPECTED_COMMIT"
  exit 1
fi

docker compose up -d postgres
for i in $(seq 1 30); do
  docker compose exec -T postgres pg_isready -U "${POSTGRES_USER:-memento}" >/dev/null 2>&1 && break
  [ "$i" -eq 30 ] && { echo "Postgres not ready"; exit 1; }
  sleep 2
done

docker compose exec -T postgres psql -U "${POSTGRES_USER:-memento}" -d "${POSTGRES_DB:-memento}" -c "CREATE EXTENSION IF NOT EXISTS vector;" >/dev/null

if git diff --name-only HEAD~1 HEAD 2>/dev/null | grep -q '^memento-note/prisma/migrations/'; then
  DUMP_FILE="/opt/memento/backups/pre-migrate-$(date +%Y%m%d-%H%M%S).sql.gz"
  mkdir -p /opt/memento/backups
  docker compose exec -T postgres pg_dump -U "${POSTGRES_USER:-memento}" -d "${POSTGRES_DB:-memento}" --clean --if-exists | gzip > "$DUMP_FILE"
  DUMP_SIZE=$(stat -c%s "$DUMP_FILE")
  if [ "$DUMP_SIZE" -lt 1048576 ]; then
    echo "ERROR: Dump too small ($DUMP_SIZE bytes)"
    exit 1
  fi
  echo "Backup: $DUMP_FILE ($(( DUMP_SIZE / 1024 ))KB)"
else
  echo "No migration change — skip pre-migrate dump"
fi

export COMPOSE_DOCKER_CLI_BUILD=1 DOCKER_BUILDKIT=1
export GIT_COMMIT

if [ -n "$ARTIFACT_TGZ" ] && [ -f "$ARTIFACT_TGZ" ]; then
  echo "=== Fast image (CI artifact) ==="
  tar xzf "$ARTIFACT_TGZ" -C memento-note/
  export MEMENTO_DOCKERFILE=Dockerfile.prebuilt
  export MEMENTO_SOCKET_DOCKERFILE=Dockerfile.socket.prebuilt
else
  echo "=== Full docker build (no artifact) ==="
  export MEMENTO_DOCKERFILE=Dockerfile
  export MEMENTO_SOCKET_DOCKERFILE=Dockerfile.socket
fi

docker compose build memento-note
docker compose build memento-socket

if git diff --name-only HEAD~1 HEAD 2>/dev/null | grep -q '^mcp-server/'; then
  docker compose build mcp-server
fi

docker compose up -d --remove-orphans --force-recreate memento-note
docker compose up -d memento-socket
docker compose up -d mcp-server 2>/dev/null || true

echo "=== Migrations (Prisma CLI via node, pas npx) ==="
if docker compose exec -T memento-note test -f ./node_modules/prisma/build/index.js 2>/dev/null; then
  docker compose exec -T memento-note node ./node_modules/prisma/build/index.js migrate deploy
else
  echo "WARN: prisma CLI absent de l'image — les migrations tournent au démarrage (entrypoint) ou via psql manuel"
fi

nginx -t 2>/dev/null && systemctl reload nginx 2>/dev/null || true

for i in $(seq 1 24); do
  BODY=$(curl -sf --max-time 3 http://127.0.0.1:3000/api/build-info 2>/dev/null || true)
  ACTUAL=$(echo "$BODY" | jq -r '.commit // empty' 2>/dev/null || true)
  if [ "$ACTUAL" = "$GIT_COMMIT" ]; then
    echo "OK build-info commit=$ACTUAL"
    docker compose ps
    exit 0
  fi
  sleep 5
done

echo "ERROR: build-info=$ACTUAL expected=$GIT_COMMIT"
docker logs memento-web --tail=40
exit 1