#!/usr/bin/env bash
# 一键更新/部署：仅 git pull，禁止 scp 传代码。
# 用法（服务器上）: bash /opt/eth_hedge_sim/deploy/pull_and_restart.sh
set -euo pipefail

ROOT="$(cd "$(dirname "$0")/.." && pwd)"
cd "$ROOT"

echo "[eth_hedge_sim] pull @ $ROOT"
git fetch --all --prune
git pull --ff-only

if [[ ! -f "$ROOT/.env" ]]; then
  echo "[eth_hedge_sim] missing .env — copy from example"
  cp "$ROOT/.env.example" "$ROOT/.env"
  # 云上测试机默认直连 OKX
  sed -i 's/^OKX_HTTP_PROXY=.*/OKX_HTTP_PROXY=/' "$ROOT/.env" || true
  sed -i 's/^API_PORT=.*/API_PORT=5155/' "$ROOT/.env" || true
  sed -i 's/^ENV_NAME=.*/ENV_NAME=test/' "$ROOT/.env" || true
  echo "[eth_hedge_sim] wrote .env — please review AUTH_* secrets"
fi

if [[ ! -d "$ROOT/.venv" ]]; then
  python3 -m venv "$ROOT/.venv"
fi
# shellcheck disable=SC1091
source "$ROOT/.venv/bin/activate"
pip install -U pip
pip install -r "$ROOT/requirements.txt"

if ! command -v npm >/dev/null 2>&1; then
  echo "ERROR: npm not found. Install Node.js 18+ first."
  exit 1
fi

(
  cd "$ROOT/frontend"
  if [[ -f package-lock.json ]]; then npm ci; else npm install; fi
  npm run build
)

if ! command -v pm2 >/dev/null 2>&1; then
  npm install -g pm2
fi

# 仅 reload 本项目进程，禁止 pm2 restart all
pm2 startOrReload "$ROOT/deploy/ecosystem.config.cjs" --update-env
pm2 save

echo "[eth_hedge_sim] done. health: http://127.0.0.1:5155/health"