/**
 * DebugView -- displays raw lore data for debugging.
 *
 * Shows the raw JSON response from get_lore_status for visual
 * verification that the data pipeline is working end-to-end.
 * Access via the debug view in the navigation.
 */

import { useLoreData } from "@/hooks/useLoreData";

export function DebugView(): React.ReactElement {
  const { data, isLoading, error, refetch } = useLoreData();

  if (isLoading) {
    return (
      <div className="flex min-h-[calc(100vh-3rem)] items-center justify-center">
        <div className="text-zinc-500">Loading lore data...</div>
      </div>
    );
  }

  if (error) {
    return (
      <div className="flex min-h-[calc(100vh-3rem)] flex-col items-center justify-center gap-4">
        <div className="text-red-500">Error: {error.message}</div>
        <button
          onClick={() => refetch()}
          className="rounded bg-zinc-700 px-3 py-1.5 text-sm text-zinc-200 hover:bg-zinc-600"
        >
          Retry
        </button>
      </div>
    );
  }

  return (
    <div className="p-4">
      <div className="mb-4 flex items-center justify-between">
        <h2 className="text-lg font-semibold text-zinc-200">Lore Debug</h2>
        <button
          onClick={() => refetch()}
          className="rounded bg-zinc-700 px-3 py-1.5 text-sm text-zinc-200 hover:bg-zinc-600"
        >
          Refresh
        </button>
      </div>

      {/* Status overview */}
      <div className="mb-6 rounded-lg border border-zinc-800 bg-zinc-900 p-4">
        <h3 className="mb-3 text-sm font-medium text-zinc-400">Status</h3>
        <div className="space-y-2">
          <div className="flex items-center gap-2">
            <span className="text-zinc-500">Health:</span>
            <div
              data-testid="health-indicator"
              className={`h-2.5 w-2.5 rounded-full ${
                data?.is_healthy ? "bg-green-500" : "bg-red-500"
              }`}
            />
            <span className="text-zinc-300">
              {data?.is_healthy ? "Healthy" : "Unhealthy"}
            </span>
          </div>
          <div className="flex items-center gap-2">
            <span className="text-zinc-500">Last Sync:</span>
            <span className="font-mono text-zinc-300">
              {data?.last_sync ?? "never"}
            </span>
          </div>
          <div className="flex items-center gap-2">
            <span className="text-zinc-500">Message:</span>
            <span className="text-zinc-300">{data?.message}</span>
          </div>
        </div>
      </div>

      {/* Summary counts */}
      {data?.summary && (
        <div className="mb-6 rounded-lg border border-zinc-800 bg-zinc-900 p-4">
          <h3 className="mb-3 text-sm font-medium text-zinc-400">Summary</h3>
          <div className="grid grid-cols-3 gap-4">
            <div className="text-center">
              <div className="text-2xl font-semibold text-zinc-200">
                {data.summary.open_issues}
              </div>
              <div className="text-sm text-zinc-500">Open Issues</div>
            </div>
            <div className="text-center">
              <div className="text-2xl font-semibold text-zinc-200">
                {data.summary.authored_mrs}
              </div>
              <div className="text-sm text-zinc-500">Authored MRs</div>
            </div>
            <div className="text-center">
              <div className="text-2xl font-semibold text-zinc-200">
                {data.summary.reviewing_mrs}
              </div>
              <div className="text-sm text-zinc-500">Reviewing MRs</div>
            </div>
          </div>
        </div>
      )}

      {/* Raw JSON output */}
      <div className="rounded-lg border border-zinc-800 bg-zinc-900 p-4">
        <h3 className="mb-3 text-sm font-medium text-zinc-400">Raw Response</h3>
        <pre className="overflow-x-auto whitespace-pre-wrap font-mono text-xs text-zinc-300">
          {JSON.stringify(data, null, 2)}
        </pre>
      </div>
    </div>
  );
}