// shell.jsx - app shell: sidebar nav, topbar, route container

const NAV_TREE = [
  { id: "home", label: "Home", icon: "home" },
  { id: "library", label: "Library", icon: "library" },
  { id: "projects", label: "Projects", icon: "folder" },
  {
    id: "ingest", label: "Ingest", icon: "upload", group: true,
    children: [
      { id: "upload", label: "Upload", icon: "upload" },
      { id: "recorders", label: "Recorders", icon: "record" },
      { id: "capture", label: "Capture", icon: "capture" },
      { id: "monitors", label: "Monitors", icon: "monitor" },
    ],
  },
  { id: "jobs", label: "Jobs", icon: "jobs", badge: { kind: "neutral", text: "3" } },
  { id: "editor", label: "Editor", icon: "editor", badge: { kind: "dev", text: "DEV" } },
];

const ADMIN_TREE = [
  { id: "users", label: "Users", icon: "users" },
  { id: "tokens", label: "Tokens", icon: "token" },
  { id: "containers", label: "Containers", icon: "container" },
  { id: "cluster", label: "Cluster", icon: "cluster" },
  { id: "settings", label: "Settings", icon: "settings" },
];

function NavItem({ item, active, onSelect, depth = 0, openGroups, toggleGroup }) {
  const isGroup = item.group && item.children;
  const isOpen = isGroup && openGroups.has(item.id);
  const isActive = active === item.id || (isGroup && item.children.some(c => c.id === active));

  return (
    <>
      <div
        className={`nav-item ${isActive && !isGroup ? "active" : ""} ${isGroup ? "has-children" : ""} ${isOpen ? "open" : ""}`}
        onClick={() => {
          if (isGroup) toggleGroup(item.id);
          else onSelect(item.id);
        }}
      >
        <Icon name={item.icon} size={15} className="nav-icon" />
        <span>{item.label}</span>
        {item.badge && (
          <span className={`nav-badge ${item.badge.kind}`}>{item.badge.text}</span>
        )}
        {isGroup && <Icon name="chevron" size={12} className="nav-caret" />}
      </div>
      {isGroup && isOpen && (
        <div className="nav-children">
          {item.children.map(c => (
            <div
              key={c.id}
              className={`nav-item ${active === c.id ? "active" : ""}`}
              onClick={() => onSelect(c.id)}
            >
              <Icon name={c.icon} size={14} className="nav-icon" />
              <span>{c.label}</span>
              {c.badge && <span className={`nav-badge ${c.badge.kind}`}>{c.badge.text}</span>}
            </div>
          ))}
        </div>
      )}
    </>
  );
}

function Sidebar({ active, onNavigate }) {
  const [openGroups, setOpenGroups] = React.useState(new Set(["ingest"]));
  const toggleGroup = (id) => {
    setOpenGroups(prev => {
      const next = new Set(prev);
      if (next.has(id)) next.delete(id);
      else next.add(id);
      return next;
    });
  };

  React.useEffect(() => {
    const ingestChildren = ["upload", "recorders", "capture", "monitors"];
    if (ingestChildren.includes(active)) {
      setOpenGroups(prev => prev.has("ingest") ? prev : new Set([...prev, "ingest"]));
    }
  }, [active]);

  return (
    <aside className="sidebar">
      <div className="sidebar-header">
        <div className="brand-mark">D</div>
        <div>
          <div className="brand-name">Dragonflight</div>
        </div>
        <div className="brand-sub">v1.2.0</div>
      </div>
      <div className="sidebar-scroll">
        {NAV_TREE.map(item => (
          <NavItem
            key={item.id}
            item={item}
            active={active}
            onSelect={onNavigate}
            openGroups={openGroups}
            toggleGroup={toggleGroup}
          />
        ))}
        <div className="nav-section-label">Admin</div>
        {ADMIN_TREE.map(item => (
          <NavItem
            key={item.id}
            item={item}
            active={active}
            onSelect={onNavigate}
            openGroups={openGroups}
            toggleGroup={toggleGroup}
          />
        ))}
      </div>
      <div className="sidebar-footer">
        <div className="avatar">ZG</div>
        <div className="user-meta">
          <div className="user-name">Zach Gaetano</div>
          <div className="user-role">admin · broadcast</div>
        </div>
        <button className="icon-btn" data-tip="Sign out"><Icon name="power" /></button>
      </div>
    </aside>
  );
}

function Topbar({ crumbs, onNavigate, right }) {
  return (
    <header className="topbar">
      <div className="crumb">
        {crumbs.map((c, i) => (
          <React.Fragment key={i}>
            {i > 0 && <Icon name="chevron" size={12} className="sep" />}
            <span
              className={i === crumbs.length - 1 ? "current" : ""}
              style={{ cursor: c.to && i < crumbs.length - 1 ? "pointer" : "default" }}
              onClick={() => c.to && onNavigate && onNavigate(c.to)}
            >
              {c.label}
            </span>
          </React.Fragment>
        ))}
      </div>
      <div className="spacer" />
      <div className="search">
        <Icon name="search" className="search-icon" />
        <input placeholder="Search assets, projects, comments…" />
        <span className="kbd">⌘K</span>
      </div>
      <div className="status-pip">
        <span className="dot" />
        <span>cluster healthy</span>
      </div>
      <button className="icon-btn" data-tip="Notifications">
        <Icon name="bell" />
      </button>
      {right}
    </header>
  );
}

// General-purpose read-only form field used by recorder modal and other forms.
// Renders as a labeled select (when select=true) or text input.
function Field({ label, value, select, children }) {
  return (
    <div className="field">
      <label className="field-label">{label}</label>
      {children || (select
        ? (
          <select className="field-input" defaultValue={value} style={{ appearance: 'auto' }}>
            <option value={value}>{value}</option>
          </select>
        ) : (
          <input className="field-input" defaultValue={value} readOnly />
        )
      )}
    </div>
  );
}

window.Sidebar = Sidebar;
window.Topbar = Topbar;
window.NAV_TREE = NAV_TREE;
window.Field = Field;