#!/usr/bin/env bash
# deploy-client.sh <tag>  —  deploy the Flutter web app, desktop/mobile installers,
# and version.yaml. Does NOT restart the backend (version.yaml is read
# per-request) nor touch nginx / the marketing site. Target is EC2 by default;
# set DEPLOY_HOST/DEPLOY_USER/DEPLOY_SSH_KEY to retarget the Ali box (migration).
set -euo pipefail

# shellcheck source=scripts/ci/lib-forgejo.sh
. "$(dirname "$0")/lib-forgejo.sh"

TAG="$1"
TARGET_HOST="${DEPLOY_HOST:-$EC2_HOST}"
TARGET_USER="${DEPLOY_USER:-$EC2_USER}"
echo "==> deploy-client: tag=${TAG} host=${TARGET_HOST}"

if [ ! -f dist/web.tar.gz ] || [ ! -f dist/version.yaml ]; then
  download_release_assets "$TAG"
fi

echo "==> deploy-client: dist/ contents:"
ls -lh dist/

# Prefer the version.yaml released for this tag (carries bumped build_number +
# changelog); fall back to the checkout copy only if the asset is absent.
VERSION_YAML="dist/version.yaml"
[ -f "$VERSION_YAML" ] || VERSION_YAML="backend/config/version.yaml"

rm -rf /tmp/jiu-web-new
mkdir -p /tmp/jiu-web-new
tar -xzf dist/web.tar.gz -C /tmp/jiu-web-new --strip-components=1

# --- 版本一致性校验（发版前，本地产物）--------------------------------------
# 部署错版事故的通用防线：确认将要上线的产物版本 == 本次发版 tag 版本。
#   ① version.yaml 的 version:（后端 /version 与官网下载页实时读它）
#   ② Flutter web 产物 version.json 的 version（自动更新客户端据此判断新版）
# 任一不符即中止发版（exit 1），绝不把错版切上线。
TAG_VER="$(ver_from_tag "$TAG")"
# 解析器均把路径经 argv 传入、用 chr(34)/chr(39) 规避引号字面量，免嵌套引号踩坑。
YAML_VER="$(python3 -c 'import sys
for line in open(sys.argv[1], encoding="utf-8"):
    if line.startswith("version:"):
        print(line.split(":", 1)[1].strip().strip(chr(34)).strip(chr(39))); break' "$VERSION_YAML")"
WEB_VER="$(python3 -c 'import json,sys; print(json.load(open(sys.argv[1], encoding="utf-8")).get("version", ""))' /tmp/jiu-web-new/version.json 2>/dev/null || echo '')"
echo "==> deploy-client: 版本校验 tag=${TAG_VER} version.yaml=${YAML_VER} web=${WEB_VER}"
if [ "$YAML_VER" != "$TAG_VER" ]; then
  echo "ERROR: version.yaml 版本(${YAML_VER}) != 发版 tag(${TAG_VER})，中止发版。" >&2
  exit 1
fi
if [ -n "$WEB_VER" ] && [ "$WEB_VER" != "$TAG_VER" ]; then
  echo "ERROR: Flutter web 产物版本(${WEB_VER}) != 发版 tag(${TAG_VER})，中止发版。" >&2
  exit 1
fi

setup_ssh
RSYNC_SSH="ssh -i ~/.ssh/ec2_deploy.pem -o StrictHostKeyChecking=no"

# 经隧道推文件到 ali 偶发中断,大安装包尤甚(见 client-v1.1.10 run #362 的
# Deploy → Ali 失败:android 83M scp 传到一半连接 reset,整个 job 挂 14min)。
# 用 rsync --partial(断点续传)+ 重试替代 scp:断了从断点续传、不整段重来。
# 单文件推送,重试 5 次;安装包已压缩(apk/zip/exe)故不加 -z。
push_file() {  # push_file <local-file> <remote-abs-path>
  local src="$1" dst="$2" i
  for i in 1 2 3 4 5; do
    if rsync -av --partial --timeout=120 -e "$RSYNC_SSH" \
         "$src" "${TARGET_USER}@${TARGET_HOST}:${dst}"; then
      return 0
    fi
    echo "!! push_file: ${src} 传输中断(第 ${i}/5 次),5s 后 --partial 续传重试…" >&2
    sleep 5
  done
  return 1
}

echo "==> deploy-client: uploading files to ${TARGET_HOST}"
# version.yaml 承载版本号/更新日志,必达;5 次仍失败则 set -e 中止发版。
push_file "$VERSION_YAML" /tmp/version.yaml

# Flutter web 目录同步(--delete 保持一致;--partial 续传;重试 3 次)。web 是
# 发版核心产物,3 次仍失败即中止(避免把不完整目录切上线)。
web_ok=0
for i in 1 2 3; do
  if rsync -avz --delete --partial --timeout=120 -e "$RSYNC_SSH" \
       /tmp/jiu-web-new/ "${TARGET_USER}@${TARGET_HOST}:/tmp/jiu-web-new/"; then
    web_ok=1; break
  fi
  echo "!! web 同步中断(第 ${i}/3 次),5s 后 --partial 续传重试…" >&2; sleep 5
done
[ "$web_ok" = 1 ] || { echo "ERROR: web 同步 3 次均失败,中止发版。" >&2; exit 1; }

# Desktop / mobile installers(nginx 从 /downloads/ 提供)。文件缺失可跳过
# (部分手动发版);传输 5 次仍失败仅告警不阻断 web/version 切换(下次发版补)。
[ -f dist/jiu-windows-x64-setup.exe ] && { push_file dist/jiu-windows-x64-setup.exe /tmp/jiu-windows-x64-setup.exe || echo "!! windows 安装包 5 次仍失败,跳过。" >&2; } || true
[ -f dist/jiu-macos-x64.zip ] && { push_file dist/jiu-macos-x64.zip /tmp/jiu-macos-x64.zip || echo "!! macos 安装包 5 次仍失败,跳过。" >&2; } || true
[ -f dist/jiu-android.apk ] && { push_file dist/jiu-android.apk /tmp/jiu-android.apk || echo "!! android 安装包 5 次仍失败,跳过。" >&2; } || true

${SSH} "${TARGET_USER}@${TARGET_HOST}" << 'ENDSSH'
set -e

# Update version config (WorkingDirectory=/opt/jiu reads config/version.yaml).
# Backend re-reads it per request — no restart needed.
mkdir -p /opt/jiu/config
cp /tmp/version.yaml /opt/jiu/config/version.yaml

# Swap Flutter web app (atomic)
rm -rf /opt/jiu/web-old
mv /opt/jiu/web /opt/jiu/web-old 2>/dev/null || true
mv /tmp/jiu-web-new /opt/jiu/web

# Publish installers to the nginx-served downloads dir; keep only the latest.
mkdir -p /opt/jiu/downloads
rm -f /opt/jiu/downloads/jiu-windows-* /opt/jiu/downloads/jiu-macos-* /opt/jiu/downloads/jiu-android-* /opt/jiu/downloads/jiu-android.apk 2>/dev/null || true
[ -f /tmp/jiu-windows-x64-setup.exe ] && mv -f /tmp/jiu-windows-x64-setup.exe /opt/jiu/downloads/ || true
[ -f /tmp/jiu-macos-x64.zip ] && mv -f /tmp/jiu-macos-x64.zip /opt/jiu/downloads/ || true
[ -f /tmp/jiu-android.apk ] && mv -f /tmp/jiu-android.apk /opt/jiu/downloads/ || true

echo "Client deploy complete!"
ENDSSH

# --- 版本一致性校验（发版后，线上实测）--------------------------------------
# 切换完成后实测线上 /version(后端每请求实时读 version.yaml)，确认真正上线的
# 版本 == 发版 tag。不符即判定部署失败(exit 1)。域名 fronts 当前 active 机器。
VERIFY_URL="${VERIFY_URL:-https://jiu.51yanmei.com}"
LIVE_VER=""
for i in 1 2 3 4 5; do
  LIVE_VER="$(curl -fsS --max-time 15 "${VERIFY_URL}/version" 2>/dev/null \
    | python3 -c "import json,sys; print(json.load(sys.stdin).get('version',''))" 2>/dev/null || echo '')"
  [ "$LIVE_VER" = "$TAG_VER" ] && break
  echo "!! 线上 /version=${LIVE_VER:-<空>} 尚未更新到 ${TAG_VER}(第 ${i}/5 次),3s 后重试…" >&2
  sleep 3
done
if [ "$LIVE_VER" != "$TAG_VER" ]; then
  echo "ERROR: 部署后线上 ${VERIFY_URL}/version 版本(${LIVE_VER:-<空>}) != 发版 tag(${TAG_VER})，部署失败。" >&2
  teardown_ssh
  exit 1
fi
echo "==> deploy-client: 线上版本校验通过 /version=${LIVE_VER}"

teardown_ssh
rm -rf /tmp/jiu-web-new
echo "==> deploy-client: done"