import { useI18n } from "../i18n";
import { useState } from "react";
import { ChevronDown, Cpu, Layers, LockKeyhole, SlidersHorizontal } from "lucide-react";
import { Button } from "../components/ui/button";
import type { useWorkingContext } from "../workspaces/WorkingContext";
import "./WorkingContextShelf.css";

export function WorkingContextShelf({ context, locked, onWorkspace, onModel }: {
  context: ReturnType<typeof useWorkingContext>; locked: boolean;
  onWorkspace: (id: string) => void; onModel: (id: string) => void;
}) {
  const { t: translate } = useI18n();
  const [expanded, setExpanded] = useState(false);
  const open = expanded || !context.ready;
  return <section className="thot-context-shelf" aria-label={translate("Global working context")}>
    <button className="thot-context-trigger" aria-expanded={open} aria-controls="thoth-working-context"
      onClick={() => setExpanded(!open)}>
      <SlidersHorizontal size={18} aria-hidden />
      <span className="thot-context-summary"><small>{translate("Working context")}</small><strong>{context.workspace?.displayName ?? translate("Choose workspace")}<span aria-hidden> / </span>{context.model?.name ?? translate("Choose model")}</strong></span>
      <span className="thot-context-action">{locked && <LockKeyhole size={15} aria-hidden />}<span>{locked ? translate("Locked") : open ? translate("Close") : translate("Change context")}</span><ChevronDown size={16} aria-hidden /></span>
    </button>
    <div id="thoth-working-context" hidden={!open} className="thot-context-body">
      <div className="thot-context-fields">
        <label><span><Layers size={15} aria-hidden />{translate("Workspace")}</span>
          <select aria-label={translate("Workspace")} value={context.workspace ? context.workspaceId : ""} disabled={locked || context.loading} onChange={event => onWorkspace(event.target.value)}>
            <option value="" disabled>{translate("Choose a workspace")}</option>{context.workspaces.map(workspace => <option key={workspace.id} value={workspace.id}>{workspace.displayName}</option>)}
          </select>
        </label>
        <label><span><Cpu size={15} aria-hidden />{translate("AI interaction model")}</span>
          <select aria-label={translate("Model")} value={context.model ? context.modelId : ""} disabled={locked || context.loading} onChange={event => onModel(event.target.value)}>
            <option value="" disabled>{translate("Choose a model")}</option>{context.models.map(model => <option key={`${model.provider}/${model.id}`} value={`${model.provider}/${model.id}`}>{model.name}</option>)}
          </select>
        </label>
      </div>
      {locked && <p role="status">{translate("Workspace and model are locked until the current operation finishes.")}</p>}
      {context.ready && context.error && <p role="status">{translate("Context refresh failed. Your current choices and unsaved work have been retained.")}</p>}
      {!context.ready && <p role="status">{context.loading ? translate("Loading working context…") : context.error ? translate("Working context is unavailable. Retry or ask the installation operator to check configuration.") : translate("Select an available workspace and model to enable Core and Administration. Unavailable saved choices are not replaced automatically.")}</p>}
      <div className="thot-context-footer">{context.error && <Button variant="outline" onClick={context.retry}>{translate("Retry context")}</Button>}{context.ready && <Button variant="outline" onClick={() => setExpanded(false)}>{translate("Done")}</Button>}</div>
    </div>
  </section>;
}