"use client";

import { useState } from "react";
import type { ProviderInfo } from "@/lib/analysis/providers";

interface ProviderStatusProps {
  provider: ProviderInfo;
  selectedOllamaModel?: string;
  isDefault: boolean;
  onSetDefault: (id: string) => void;
}

const TYPE_LABELS: Record<ProviderInfo["type"], string> = {
  "cloud-ai": "Cloud AI",
  "local-ai": "Local AI",
  "algorithmic": "No AI",
};

export default function ProviderStatus({
  provider,
  selectedOllamaModel,
  isDefault,
  onSetDefault,
}: ProviderStatusProps) {
  const [testStatus, setTestStatus] = useState<"idle" | "testing" | "ok" | "error">("idle");
  const [testError, setTestError] = useState("");

  async function handleTest() {
    setTestStatus("testing");
    setTestError("");
    try {
      const res = await fetch("/api/analyze/test", {
        method: "POST",
        headers: { "Content-Type": "application/json" },
        body: JSON.stringify({
          provider: provider.id,
          ollamaModel: provider.id === "ollama" ? selectedOllamaModel : undefined,
        }),
      });
      const data = await res.json() as { ok: boolean; error?: string };
      if (data.ok) {
        setTestStatus("ok");
      } else {
        setTestStatus("error");
        setTestError(data.error ?? "Unknown error");
      }
    } catch (err) {
      setTestStatus("error");
      setTestError(err instanceof Error ? err.message : String(err));
    }
  }

  return (
    <div className="rounded-lg border border-zinc-800 bg-zinc-900/60 p-4">
      <div className="flex items-start justify-between gap-3">
        <div className="flex-1 min-w-0">
          <div className="flex items-center gap-2 flex-wrap">
            <span className="font-medium text-zinc-200">{provider.label}</span>
            <span className="rounded px-1.5 py-0.5 text-xs bg-zinc-800 text-zinc-400">
              {TYPE_LABELS[provider.type]}
            </span>
            {provider.available ? (
              <span className="rounded px-1.5 py-0.5 text-xs bg-green-900/50 text-green-400">
                Available
              </span>
            ) : (
              <span className="rounded px-1.5 py-0.5 text-xs bg-zinc-800 text-zinc-500">
                Unavailable
              </span>
            )}
            {isDefault && (
              <span className="rounded px-1.5 py-0.5 text-xs bg-blue-900/50 text-blue-400">
                Default
              </span>
            )}
          </div>
          {!provider.available && provider.unavailableReason && (
            <p className="mt-1 text-xs text-zinc-600">{provider.unavailableReason}</p>
          )}
          {provider.id === "ollama" && provider.available && provider.ollamaBaseUrl && (
            <p className="mt-1 text-xs text-zinc-600 font-mono">{provider.ollamaBaseUrl}</p>
          )}
        </div>

        {provider.available && (
          <div className="flex items-center gap-2 shrink-0">
            {!isDefault && (
              <button
                onClick={() => onSetDefault(provider.id)}
                className="text-xs text-zinc-500 hover:text-zinc-300 underline"
              >
                Set as default
              </button>
            )}
            <button
              onClick={handleTest}
              disabled={testStatus === "testing"}
              className="rounded px-3 py-1 text-xs font-medium border border-zinc-700 text-zinc-300 hover:border-zinc-500 hover:text-zinc-100 transition-colors disabled:opacity-50"
            >
              {testStatus === "testing" ? "Testing…" : "Test"}
            </button>
          </div>
        )}
      </div>

      {testStatus === "ok" && (
        <p className="mt-2 text-xs text-green-400">✓ Working</p>
      )}
      {testStatus === "error" && (
        <p className="mt-2 text-xs text-red-400">✗ {testError}</p>
      )}
    </div>
  );
}