#!/usr/bin/env bash
# 知命阁 Docker 部署脚本
# 用法：cd /opt/zhimingge && bash scripts/docker-deploy.sh

set -euo pipefail

APP_DIR="/opt/zhimingge"
APP_PORT="${PORT:-3130}"

cd "$APP_DIR"

if [[ ! -f .env.local ]]; then
  echo "ERROR: 缺少 .env.local，请先：cp .env.example .env.local && nano .env.local"
  exit 1
fi

mkdir -p data/history

echo "==> 当前 commit: $(git rev-parse --short HEAD)"
echo "==> 拉取最新代码..."
git pull origin main
echo "==> 更新后 commit: $(git rev-parse --short HEAD)"

echo "==> 停止旧 PM2 进程（若存在，避免占用 ${APP_PORT}）..."
pm2 stop zhimingge 2>/dev/null || true
pm2 delete zhimingge 2>/dev/null || true

if command -v fuser >/dev/null 2>&1; then
  fuser -k "${APP_PORT}/tcp" 2>/dev/null || true
fi

echo "==> 构建 Docker 镜像（无缓存）..."
docker compose build --no-cache

echo "==> 启动容器..."
docker compose up -d --force-recreate

echo "==> 状态"
docker compose ps

echo "==> 等待服务就绪..."
for i in $(seq 1 30); do
  if curl -sf "http://127.0.0.1:${APP_PORT}/api/health" >/dev/null 2>&1; then
    echo "OK /api/health"
    curl -s "http://127.0.0.1:${APP_PORT}/api/health"
    echo ""
    break
  fi
  if [[ "$i" -eq 30 ]]; then
    echo "ERROR: /api/health 未响应，请检查：docker compose logs zhimingge"
    exit 1
  fi
  sleep 1
done

curl -s -o /dev/null -w "首页 HTTP %{http_code}\n" "http://127.0.0.1:${APP_PORT}/" || true

echo "==> 部署完成。日志：docker compose logs -f zhimingge"
echo ""
echo "==> 可选：清理无用镜像释放磁盘"
echo "    bash scripts/docker-prune.sh"