import { getRequestOrigin } from "@/lib/request-origin";
import { buildSubscriptionUrl, getDefaultClashTemplate } from "@/lib/subscription";
import {
  getAdminMirrorUser,
  getSubscriptionSettings,
  listSubscriptionNodes,
} from "@/lib/store";

import { saveSubscriptionSettingsAction } from "./actions";
import { ProxyGroupEditor } from "./proxy-group-editor";

export default async function AdminSubscriptionsPage() {
  const [settings, adminUser, nodes, origin] = await Promise.all([
    getSubscriptionSettings(),
    getAdminMirrorUser(),
    listSubscriptionNodes(),
    getRequestOrigin(),
  ]);
  const proxyGroupNodes = nodes.map((node) => ({
    slug: node.slug,
    label: node.client_name || node.name,
    meta:
      node.client_name && node.client_name !== node.name
        ? `${node.name} / ${node.slug}`
        : node.slug,
  }));

  return (
    <main className="page-stack">
      <section className="hero-panel">
        <div className="hero-copy">
          <span className="eyebrow">订阅</span>
          <h2>订阅与模板</h2>
          <div className="badge-row">
            <span className="status-pill status-pill--ok">节点 {nodes.length}</span>
            <span className="status-pill status-pill--ink">分组 {settings.proxyGroups.length}</span>
          </div>
        </div>
        <div className="hero-aside">
          <div className="stat-tile">
            <span>可用节点</span>
            <strong>{nodes.length}</strong>
          </div>
          <div className="stat-tile">
            <span>默认主组</span>
            <strong>{settings.profileName}</strong>
          </div>
        </div>
      </section>

      <section className="panel-card">
        <div className="section-title">
          <h3>管理员订阅</h3>
        </div>
        {adminUser?.subscription_token ? (
          <div className="instruction-block no-margin">
            <p className="muted mono break-all">
              {buildSubscriptionUrl(adminUser.subscription_token, origin)}
            </p>
          </div>
        ) : (
          <p className="muted">管理员订阅链接暂不可用。</p>
        )}
      </section>

      <section className="panel-card">
        <div className="section-title section-title--top">
          <div className="stack-tight">
            <h3>代理分组</h3>
          </div>
        </div>
        <div className="stack-lg">
          <ProxyGroupEditor
            mode="main"
            group={{
              id: "main",
              name: settings.profileName,
              memberSlugs: settings.mainProxyGroupMemberSlugs,
            }}
            nodes={proxyGroupNodes}
          />

          {settings.proxyGroups.map((group) => (
            <ProxyGroupEditor key={group.id} group={group} nodes={proxyGroupNodes} />
          ))}

          <ProxyGroupEditor key={`new-${settings.proxyGroups.length}`} nodes={proxyGroupNodes} />
        </div>
      </section>

      <section className="panel-card">
        <div className="section-title">
          <h3>订阅模板</h3>
        </div>
        <form action={saveSubscriptionSettingsAction} className="stack-lg">
          <label className="field">
            <span>订阅文件名 / 默认主组名</span>
            <input name="profile_name" defaultValue={settings.profileName} required />
          </label>
          <label className="field">
            <span>基础模板</span>
            <textarea
              name="template"
              rows={18}
              defaultValue={settings.template || getDefaultClashTemplate()}
            />
          </label>
          <label className="field">
            <span>附加 proxy-groups YAML</span>
            <textarea
              name="extra_proxy_groups"
              rows={12}
              defaultValue={settings.extraProxyGroups}
              placeholder={`  - name: ChatGPT\n    type: select\n    proxies: ["US 01 - hy2", "JP 01 - hy2"]`}
            />
          </label>
          <button className="primary-button" type="submit">
            保存订阅模板
          </button>
        </form>
      </section>
    </main>
  );
}