#!/usr/bin/env bash
# ═══════════════════════════════════════════════════════════════════
# hotfix.sh — 紧急单文件修复（仅限紧急情况）
#
# 用法:
#   bash deploy/hotfix.sh <服务名> <宿主文件> <容器内路径>
#   bash deploy/hotfix.sh backend /tmp/fix.py /app/app/services/fix.py
#
# ⚠️ 强制收口:
#   docker cp 只是把文件放进运行中的容器，不进镜像——容器一重建即丢。
#   用后必须立即: ① git 提交改动 ② 走 deploy.sh 正式部署，否则手工改动与仓库不一致（8-09 教训）。
# ═══════════════════════════════════════════════════════════════════
set -euo pipefail

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

COMPOSE_FILE="docker-compose.prod.yml"

GREEN='\033[0;32m'; YELLOW='\033[1;33m'; RED='\033[0;31m'; NC='\033[0m'
info()  { echo -e "${GREEN}[✓]${NC} $1"; }
warn()  { echo -e "${YELLOW}[!]${NC} $1"; }
error() { echo -e "${RED}[✗]${NC} $1"; exit 1; }

if [ "$#" -ne 3 ]; then
  echo "用法: bash deploy/hotfix.sh <服务名> <宿主文件> <容器内路径>"
  exit 1
fi

SERVICE="$1"; HOST_FILE="$2"; CONTAINER_PATH="$3"

[ -f "$HOST_FILE" ] || error "宿主文件不存在: $HOST_FILE"

info "复制 $HOST_FILE → $SERVICE:$CONTAINER_PATH"
docker compose -f "$COMPOSE_FILE" cp "$HOST_FILE" "$SERVICE:$CONTAINER_PATH"

if [ "$SERVICE" = "backend" ] || [ "$SERVICE" = "worker" ]; then
  info "backend/worker 需重启才生效: docker compose -f $COMPOSE_FILE restart $SERVICE"
fi

echo ""
echo -e "${RED}════════════════════════════════════════════════════════════════${NC}"
echo -e "${RED}⚠️  hotfix 是脆弱窗口：docker cp 不进镜像，容器重建即丢！${NC}"
echo -e "${RED}    必须立即完成以下收口，否则改动丢失且与仓库不一致：${NC}"
echo -e "${RED}    1. 把改动同步回仓库（git 提交 + push）${NC}"
echo -e "${RED}    2. 尽快走正式部署: bash deploy/deploy.sh${NC}"
echo -e "${RED}════════════════════════════════════════════════════════════════${NC}"