{{define "content"}}
{{template "adminnav" (dict "Tab" "upgrade")}}
<div class="pagehead">
  <h1>版本与升级</h1>
  <p class="muted">查看当前版本、检查更新，并在备份旧程序后一键完成替换。</p>
</div>

<div class="split">
  <div class="col-main">
    <div class="card">
      <h3 class="card-title">当前版本</h3>
      <ul class="kv">
        <li><span>版本</span><strong>{{.Data.Version}}</strong>{{if .Data.IsDev}} <span class="tag tag-warn">开发构建</span>{{end}}</li>
        {{if .Data.HasCommit}}<li><span>提交</span><code class="csha">{{.Data.Commit}}</code></li>{{end}}
        {{if .Data.BuildDate}}<li><span>构建时间</span><span class="muted small">{{.Data.BuildDate}}</span></li>{{end}}
        <li><span>平台</span><code class="csha">{{.Data.Platform}}</code></li>
        <li><span>数据库结构</span><code class="csha">v{{.Data.SchemaVersion}} / 支持到 v{{.Data.SchemaSupported}}</code></li>
        <li><span>上次检查</span><span class="muted small">{{.Data.LastCheckText}}</span></li>
      </ul>
      {{if not .Data.ExeReady}}
      <p class="tag tag-warn">无法定位当前可执行文件</p>
      <p class="hint">若以 <code class="csha">go run</code> 方式启动，程序无法自我替换，请改为部署编译好的二进制后再使用一键升级。路径：<code class="csha">{{if .Data.ExePath}}{{.Data.ExePath}}（未找到）{{else}}未知{{end}}</code></p>
      {{end}}
      {{if not .Data.RestartSupported}}
      <p class="hint">当前部署方式不支持自动重启，升级后需要手工重启服务。</p>
      {{end}}
    </div>

    {{if .Data.Pending}}
    <div class="card danger-card">
      <h3 class="card-title">有待生效的升级</h3>
      <p>程序已从 <strong>{{.Data.PendingFrom}}</strong> 替换为 <strong>{{.Data.PendingTo}}</strong>，但当前进程仍是旧版本。</p>
      <ul class="kv">
        <li><span>替换时间</span><span class="muted small">{{datetime .Data.PendingAt}}</span></li>
        <li><span>旧程序备份</span><code class="csha">{{.Data.PendingBackup}}</code></li>
      </ul>
      <form method="post" action="/admin/upgrade">
        <input type="hidden" name="csrf" value="{{.CSRF}}">
        <input type="hidden" name="action" value="restart">
        <button class="btn btn-primary" type="submit">立即重启使其生效</button>
      </form>
    </div>
    {{end}}

    <div class="card">
      <h3 class="card-title">升级源</h3>
      <form method="post" action="/admin/upgrade">
        <input type="hidden" name="csrf" value="{{.CSRF}}">
        <input type="hidden" name="action" value="save">
        <label class="field">
          <span>版本清单地址</span>
          <input type="url" name="upgrade_url" placeholder="https://example.com/gitcat/releases.json" value="{{.Data.UpgradeURL}}">
          <em class="field-hint">一个返回 JSON 的地址，需包含版本号、下载地址与 sha256；留空则只能查看版本、不能升级。</em>
        </label>
        <label class="check">
          <input type="checkbox" name="auto_apply" {{if .Data.AutoApply}}checked{{end}}>
          <span>重启后自动安装已下载的新版本<em>需配合服务管理器（如 systemd）使用</em></span>
        </label>
        <button class="btn btn-primary" type="submit">保存升级设置</button>
      </form>
      <form method="post" action="/admin/upgrade" class="inline-form">
        <input type="hidden" name="csrf" value="{{.CSRF}}">
        <input type="hidden" name="action" value="check">
        <button class="btn btn-ghost" type="submit">检查更新</button>
      </form>
    </div>
  </div>

  <aside class="col-side">
    <div class="card about">
      <h3>升级清单格式</h3>
      <pre class="code">{
  "latest": "1.2.0",
  "min_supported": "1.0.0",
  "releases": [{
    "version": "1.2.0",
    "url": "https://…/gitcat-linux-amd64",
    "sha256": "ab12…",
    "size": 8388608,
    "os": "linux",
    "arch": "amd64",
    "notes": "修复推送越权"
  }]
}</pre>
      <p class="hint">平台标识为 <code class="csha">linux/amd64</code>、<code class="csha">darwin/arm64</code> 等；<code class="csha">os</code> 与 <code class="csha">arch</code> 可省略，表示不限平台。</p>
    </div>
    <div class="card tip-card">
      <h3>升级是怎么做的</h3>
      <ul class="tips">
        <li>下载到 <code class="csha">data/tmp</code>，先校验 sha256 与体积；</li>
        <li>再试运行一次 <code class="csha">-version</code>，确认新程序真的能跑；</li>
        <li>把当前程序备份到 <code class="csha">{{.Data.BackupDir}}</code>；</li>
        <li>替换成功后写待重启标记，重启时自动确认并清除。</li>
      </ul>
      <p class="hint">前四步里任何一步失败都不会动现有程序，服务照常运行。</p>
    </div>
  </aside>
</div>
{{end}}