// Hello Exbyte — example plugin.
// A plugin is a plain ES module that exports `activate(host)`. The host is the
// only way the plugin touches the app; what it can reach is gated by the
// "permissions" in plugin.json.

export function activate(host) {
  host.log("activating", host.plugin.id, "v", host.version);

  // 1) A menu action (appears under the Actions menu).
  host.ui.addMenuItem("Say hello 👋", () => {
    const me = host.info()?.userName || "there";
    host.flash(`Hello, ${me}! (from the Hello Exbyte plugin)`);
    host.notify("Hello Exbyte", "The example plugin says hi.");
  });

  // 2) A file context-menu item (right-click a file in Changes).
  host.ui.addFileContextItem("Copy depot path (plugin)", (file) => {
    if (file.depotFile) {
      host.clipboard.write(file.depotFile);
      host.flash("Copied: " + file.depotFile);
    }
  });

  // 3) A view — a per-workspace notepad, persisted with host.storage.
  //    Opens from the Actions menu (listed by its title).
  host.ui.addView({
    id: "notes",
    title: "Workspace Notes",
    render: (el) => {
      const key = "notes:" + (host.info()?.clientName || "default");
      const ta = document.createElement("textarea");
      ta.value = host.storage.get(key) || "";
      ta.placeholder = "Jot notes for this workspace… (saved locally, per workspace)";
      ta.style.cssText =
        "width:100%;height:320px;box-sizing:border-box;resize:vertical;" +
        "background:var(--input-bg,#111);color:var(--txt,#eee);" +
        "border:1px solid var(--border,#333);border-radius:10px;padding:12px;" +
        "font:13px/1.6 system-ui;outline:none";
      ta.addEventListener("input", () => host.storage.set(key, ta.value));
      el.appendChild(ta);
      // optional cleanup returned to the host:
      return () => host.storage.set(key, ta.value);
    },
  });

  // 4) A submit guard — blocks (with a confirm) files that look like WIP.
  //    This is the same hook point a reference-integrity guard would use.
  host.ui.addSubmitHook((files) => {
    const wip = files.filter((f) => /(^|\/)(wip|temp|scratch)[^/]*$/i.test(f.depotFile || ""));
    if (wip.length) {
      return { ok: false, message: `${wip.length} file(s) look like work-in-progress (wip / temp / scratch).` };
    }
    return { ok: true };
  });

  host.log("activated");
}