#!/usr/bin/env bash
# 同步 API 环境变量到服务器
# 用法: deploy/sync-api-env.sh staging|production
set -euo pipefail

SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
REPO_ROOT="$(cd "$SCRIPT_DIR/.." && pwd)"
ENV_FILE="$REPO_ROOT/deploy/deploy.env"

DEPLOY_HOST=""
DEPLOY_USER="root"
DEPLOY_PORT="22"
DEPLOY_SSH_KEY=""
APP_ROOT="/opt/dukang"
STAGING_APP_ROOT="/opt/dukang-staging"
PROD_APP_ROOT="/opt/dukang"

TARGET="${1:-}"
case "$TARGET" in
  staging|stage|test)
    TARGET=staging
    SRC_ENV="$REPO_ROOT/server/dukang-api/.env.staging"
    REMOTE_NAME=".env.staging"
    PM2_NAME=dukang-stg-api
    HEALTH_PORT=8190
    ;;
  production|prod)
    TARGET=production
    SRC_ENV="$REPO_ROOT/server/dukang-api/.env.production"
    REMOTE_NAME=".env.production"
    PM2_NAME=dukang-api
    HEALTH_PORT=8090
    ;;
  development|dev)
    echo "错误: development 仅用于本地开发，请使用 .env，不同步到服务器" >&2
    exit 1
    ;;
  *)
    echo "用法: $0 staging|production" >&2
    exit 1
    ;;
esac

if [[ -f "$ENV_FILE" ]]; then
  # shellcheck disable=SC1090
  source "$ENV_FILE"
fi

if [[ "$TARGET" == "staging" ]]; then
  APP_ROOT="${STAGING_APP_ROOT:-/opt/dukang-staging}"
else
  APP_ROOT="${PROD_APP_ROOT:-/opt/dukang}"
fi

if [[ ! -f "$SRC_ENV" ]]; then
  echo "错误: 未找到 $SRC_ENV（可从 ${SRC_ENV}.example 复制）" >&2
  exit 1
fi

if [[ -z "$DEPLOY_HOST" ]]; then
  echo "错误: 未配置 DEPLOY_HOST（deploy/deploy.env）" >&2
  exit 1
fi

SSH_OPTS=(-o "StrictHostKeyChecking=accept-new" -p "$DEPLOY_PORT")
SCP_OPTS=(-o "StrictHostKeyChecking=accept-new" -P "$DEPLOY_PORT")
[[ -n "$DEPLOY_SSH_KEY" ]] && SSH_OPTS+=(-i "$DEPLOY_SSH_KEY") && SCP_OPTS+=(-i "$DEPLOY_SSH_KEY")
REMOTE="${DEPLOY_USER}@${DEPLOY_HOST}"

echo "==> 同步 $TARGET 环境到 $REMOTE:$APP_ROOT/server/dukang-api/$REMOTE_NAME"
scp "${SCP_OPTS[@]}" "$SRC_ENV" "$REMOTE:$APP_ROOT/server/dukang-api/$REMOTE_NAME"
ssh "${SSH_OPTS[@]}" "$REMOTE" \
  "pm2 restart $PM2_NAME && sleep 2 && curl -sf -o /dev/null -w 'api-health:%{http_code}\n' http://127.0.0.1:${HEALTH_PORT}/api/v1/health"
echo "==> 完成"