#!/usr/bin/env bash
#
# 为 refining/secrets 仓库配置 Gitea Actions 所需的 Secrets 和 Variables
# 参考: .gitea/workflows/secrets.yml
#
# 所需配置:
#   - secrets.RELEASE_TOKEN  (可选，推荐) Gitea PAT；未配置则工作流跳过 Release 创建与产物上传
#   - vars.WEBHOOK_URL       (可选) 飞书通知
#   - vars.DEPLOY_HOST       (可选) 部署目标 SSH 主机（IP 或域名）
#   - vars.DEPLOY_USER       (可选) SSH 用户名
#   - secrets.DEPLOY_SSH_KEY (可选) SSH 私钥 PEM 全文（原始字符，含 BEGIN/END 行）；通过 DEPLOY_SSH_KEY_FILE 写入 API
#
# 注意:
#   - Gitea 不允许 secret/variable 名以 GITEA_ 或 GITHUB_ 开头，故使用 RELEASE_TOKEN
#   - Gitea Actions 的 secrets（API 的 data 字段，及网页里粘贴的值）必须是未经 base64 的原始值。
#     若事先 base64 再写入，工作流里拿到的仍是「一串 base64 文本」，SSH/OpenSSH 无法识别，部署会失败。
#     DEPLOY_SSH_KEY 须与 .pem 文件内容一致：本脚本用 jq --rawfile 按原文上传。
#   - Variables 的 value 字段同样为原始字符串，不要 base64。
#
# 用法:
#   1. 从 ~/.config/gitea/config.env 读取 GITEA_URL, GITEA_TOKEN, GITEA_WEBHOOK_URL
#   2. 或通过环境变量覆盖: GITEA_TOKEN（作为 RELEASE_TOKEN 的值）, WEBHOOK_URL,
#      DEPLOY_HOST, DEPLOY_USER, DEPLOY_SSH_KEY_FILE（部署到 ECS）
#   3. 凭据勿用 base64；部署私钥路径见 DEPLOY_SSH_KEY_FILE
#

set -e

OWNER="refining"
REPO="secrets"

# 解析参数
while [[ $# -gt 0 ]]; do
  case $1 in
    --from-secrets)
      echo "❌ --from-secrets 尚未实现，请使用 ~/.config/gitea/config.env 或环境变量" >&2
      exit 1
      ;;
    -h|--help)
      echo "用法: $0"
      echo ""
      echo "从 ~/.config/gitea/config.env 读取，或由环境变量覆盖。"
      echo ""
      echo "环境变量:"
      echo "  GITEA_URL             Gitea 实例根地址（可误带尾部 /api/v1，脚本会规范化后拼接）"
      echo "  GITEA_TOKEN           用于 Release 的 PAT → secrets.RELEASE_TOKEN"
      echo "  WEBHOOK_URL           或 GITEA_WEBHOOK_URL → vars.WEBHOOK_URL（可选）"
      echo "  DEPLOY_HOST           部署 SSH 主机（可选，须与下面两项同时设置）"
      echo "  DEPLOY_USER           部署 SSH 用户"
      echo "  DEPLOY_SSH_KEY_FILE   本地 PEM 路径 → secrets.DEPLOY_SSH_KEY（原文上传，勿 base64）"
      exit 0
      ;;
    *)
      echo "❌ 未知参数: $1" >&2
      echo "   使用 $0 --help 查看用法" >&2
      exit 1
      ;;
  esac
done

for cmd in curl jq; do
  if ! command -v "$cmd" &>/dev/null; then
    echo "❌ 未找到命令: $cmd（本脚本依赖 curl 与 jq）" >&2
    exit 1
  fi
done

# 加载配置
load_config() {
  local config="$HOME/.config/gitea/config.env"
  if [[ -f "$config" ]]; then
    # shellcheck source=/dev/null
    source "$config"
  fi
}

load_config

# 优先使用环境变量
if [[ -n "$GITEA_TOKEN" && -z "$GITEA_URL" ]]; then
  echo "❌ 请设置 GITEA_URL (或确保 config.env 中有)" >&2
  exit 1
fi

if [[ -z "$GITEA_URL" ]]; then
  echo "❌ GITEA_URL 未配置"
  echo "   请创建 ~/.config/gitea/config.env 或设置环境变量" >&2
  exit 1
fi

# 规范为实例根 URL：去尾部斜杠，并去掉重复的 .../api/v1 后缀（避免拼成 .../api/v1/api/v1）
GITEA_URL="${GITEA_URL%/}"
while [[ "$GITEA_URL" == */api/v1 ]]; do
  GITEA_URL="${GITEA_URL%/api/v1}"
  GITEA_URL="${GITEA_URL%/}"
done

API_BASE="${GITEA_URL}/api/v1"

# 获取 GITEA_TOKEN（作为 workflow 中 secrets.RELEASE_TOKEN 的值）
if [[ -z "$GITEA_TOKEN" ]]; then
  echo "❌ GITEA_TOKEN 未配置"
  echo "   在 ~/.config/gitea/config.env 中设置，或 export GITEA_TOKEN=xxx" >&2
  echo "   Token 需具备 repo 写权限（创建 Release、上传附件）" >&2
  exit 1
fi

echo "━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━"
echo "配置 Gitea Actions: $OWNER/$REPO"
echo "━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━"
echo ""

# 1. 创建 Secret: RELEASE_TOKEN（data = PAT 原文，勿 base64）
echo "1. 创建 Secret: RELEASE_TOKEN"
secret_payload=$(jq -n --arg t "$GITEA_TOKEN" '{data: $t}')
resp=$(curl -s -w "\n%{http_code}" -X PUT \
  -H "Authorization: token $GITEA_TOKEN" \
  -H "Content-Type: application/json" \
  -d "$secret_payload" \
  "${API_BASE}/repos/${OWNER}/${REPO}/actions/secrets/RELEASE_TOKEN")
http_code=$(echo "$resp" | tail -n1)
body=$(echo "$resp" | sed '$d')

if [[ "$http_code" == "200" || "$http_code" == "201" || "$http_code" == "204" ]]; then
  echo "   ✓ RELEASE_TOKEN 已创建/更新"
else
  echo "   ❌ 失败 (HTTP $http_code)" >&2
  echo "$body" | jq -r '.message // .' 2>/dev/null || echo "$body" >&2
  exit 1
fi

# 2. 创建/更新 Variable: WEBHOOK_URL（可选，value 为原始 URL 字符串，勿 base64）
WEBHOOK_VALUE="${WEBHOOK_URL:-$GITEA_WEBHOOK_URL}"
if [[ -n "$WEBHOOK_VALUE" ]]; then
  echo ""
  echo "2. 创建/更新 Variable: WEBHOOK_URL"
  var_payload=$(jq -n --arg v "$WEBHOOK_VALUE" '{value: $v}')
  resp=$(curl -s -w "\n%{http_code}" -X POST \
    -H "Authorization: token $GITEA_TOKEN" \
    -H "Content-Type: application/json" \
    -d "$var_payload" \
    "${API_BASE}/repos/${OWNER}/${REPO}/actions/variables/WEBHOOK_URL")
  http_code=$(echo "$resp" | tail -n1)
  body=$(echo "$resp" | sed '$d')

  if [[ "$http_code" == "200" || "$http_code" == "201" || "$http_code" == "204" ]]; then
    echo "   ✓ WEBHOOK_URL 已创建/更新"
  elif [[ "$http_code" == "409" ]]; then
    # 变量已存在，用 PUT 更新
    resp=$(curl -s -w "\n%{http_code}" -X PUT \
      -H "Authorization: token $GITEA_TOKEN" \
      -H "Content-Type: application/json" \
      -d "$var_payload" \
      "${API_BASE}/repos/${OWNER}/${REPO}/actions/variables/WEBHOOK_URL")
    http_code=$(echo "$resp" | tail -n1)
    if [[ "$http_code" == "200" || "$http_code" == "204" ]]; then
      echo "   ✓ WEBHOOK_URL 已更新"
    else
      echo "   ⚠ 更新失败 (HTTP $http_code)" >&2
    fi
  else
    echo "   ⚠ 失败 (HTTP $http_code)，飞书通知将不可用" >&2
  fi
else
  echo ""
  echo "2. 跳过 WEBHOOK_URL（未配置 GITEA_WEBHOOK_URL 或 WEBHOOK_URL）"
  echo "   飞书通知将不可用；如需可后续在仓库 Settings → Variables 中添加"
fi

# 3. 部署用 Variable + Secret（与 .gitea/workflows/secrets.yml 中 deploy-mcp 一致）
upsert_repo_variable() {
  local var_name="$1" var_value="$2"
  local var_payload http_code body resp
  var_payload=$(jq -n --arg v "$var_value" '{value: $v}')
  resp=$(curl -s -w "\n%{http_code}" -X POST \
    -H "Authorization: token $GITEA_TOKEN" \
    -H "Content-Type: application/json" \
    -d "$var_payload" \
    "${API_BASE}/repos/${OWNER}/${REPO}/actions/variables/${var_name}")
  http_code=$(echo "$resp" | tail -n1)
  if [[ "$http_code" == "200" || "$http_code" == "201" || "$http_code" == "204" ]]; then
    return 0
  fi
  if [[ "$http_code" == "409" ]]; then
    resp=$(curl -s -w "\n%{http_code}" -X PUT \
      -H "Authorization: token $GITEA_TOKEN" \
      -H "Content-Type: application/json" \
      -d "$var_payload" \
      "${API_BASE}/repos/${OWNER}/${REPO}/actions/variables/${var_name}")
    http_code=$(echo "$resp" | tail -n1)
    [[ "$http_code" == "200" || "$http_code" == "204" ]]
    return
  fi
  body=$(echo "$resp" | sed '$d')
  echo "   ❌ 变量 ${var_name} 失败 (HTTP $http_code)" >&2
  echo "$body" | jq -r '.message // .' 2>/dev/null || echo "$body" >&2
  return 1
}

if [[ -n "$DEPLOY_HOST" && -n "$DEPLOY_USER" && -n "$DEPLOY_SSH_KEY_FILE" ]]; then
  echo ""
  echo "3. 部署目标: vars.DEPLOY_HOST / vars.DEPLOY_USER + secrets.DEPLOY_SSH_KEY"
  if [[ ! -f "$DEPLOY_SSH_KEY_FILE" ]]; then
    echo "   ❌ DEPLOY_SSH_KEY_FILE 不是文件: $DEPLOY_SSH_KEY_FILE" >&2
    exit 1
  fi
  upsert_repo_variable DEPLOY_HOST "$DEPLOY_HOST" || exit 1
  echo "   ✓ DEPLOY_HOST"
  upsert_repo_variable DEPLOY_USER "$DEPLOY_USER" || exit 1
  echo "   ✓ DEPLOY_USER"
  # PEM 原文写入 secret.data；勿对文件先做 base64，否则 runner 侧 ssh 无法解析密钥
  secret_payload=$(jq -n --rawfile k "$DEPLOY_SSH_KEY_FILE" '{data: $k}')
  resp=$(curl -s -w "\n%{http_code}" -X PUT \
    -H "Authorization: token $GITEA_TOKEN" \
    -H "Content-Type: application/json" \
    -d "$secret_payload" \
    "${API_BASE}/repos/${OWNER}/${REPO}/actions/secrets/DEPLOY_SSH_KEY")
  http_code=$(echo "$resp" | tail -n1)
  body=$(echo "$resp" | sed '$d')
  if [[ "$http_code" == "200" || "$http_code" == "201" || "$http_code" == "204" ]]; then
    echo "   ✓ DEPLOY_SSH_KEY"
  else
    echo "   ❌ DEPLOY_SSH_KEY 失败 (HTTP $http_code)" >&2
    echo "$body" | jq -r '.message // .' 2>/dev/null || echo "$body" >&2
    exit 1
  fi
else
  echo ""
  echo "3. 跳过部署配置（需同时设置 DEPLOY_HOST、DEPLOY_USER、DEPLOY_SSH_KEY_FILE）"
fi

echo ""
echo "━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━"
echo "✓ 配置完成"
echo "━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━"
echo ""
echo "Workflow 将使用:"
echo "  - secrets.RELEASE_TOKEN  创建 Release 并上传二进制"
echo "  - vars.WEBHOOK_URL     发送飞书通知（如已配置）"
echo "  - vars.DEPLOY_* / secrets.DEPLOY_SSH_KEY  deploy-mcp（如已配置）"
echo ""
echo "推送代码触发构建:"
echo "  git push origin main"
echo ""