"use client";

import { useState, useEffect } from "react";
import { Plus, History } from "lucide-react";
import Link from "next/link";
import { Button } from "@/components/ui/button";
import { Card, CardContent } from "@/components/ui/card";
import { fetchCredentials, type Credential } from "@/lib/api/credentials";

export default function CredentialsPage(): React.ReactElement {
  const [credentials, setCredentials] = useState<Credential[]>([]);
  const [isLoading, setIsLoading] = useState(true);
  const [error, setError] = useState<string | null>(null);

  const workspaceId = "default-workspace-id";

  useEffect(() => {
    void loadCredentials();
  }, []);

  async function loadCredentials(): Promise<void> {
    try {
      setIsLoading(true);
      const response = await fetchCredentials(workspaceId);
      setCredentials(response.data);
      setError(null);
    } catch (err) {
      setError(err instanceof Error ? err.message : "Failed to load credentials");
    } finally {
      setIsLoading(false);
    }
  }

  return (
    <div className="max-w-6xl mx-auto p-6">
      {/* Header */}
      <div className="mb-6">
        <div className="flex items-center justify-between">
          <div>
            <h1 className="text-3xl font-bold">Credentials</h1>
            <p className="text-muted-foreground mt-1">
              Securely store and manage API keys, tokens, and passwords
            </p>
          </div>
          <div className="flex gap-2">
            <Button disabled>
              <Plus className="mr-2 h-4 w-4" />
              Add Credential
            </Button>
            <Link href="/settings/credentials/audit">
              <Button variant="outline">
                <History className="mr-2 h-4 w-4" />
                Audit Log
              </Button>
            </Link>
          </div>
        </div>
      </div>

      {/* Error Display */}
      {error && <div className="mb-4 p-4 bg-red-50 text-red-800 rounded-md">{error}</div>}

      {/* Loading State */}
      {isLoading ? (
        <div className="text-center py-12">
          <p className="text-gray-500">Loading credentials...</p>
        </div>
      ) : credentials.length === 0 ? (
        <Card>
          <CardContent className="flex flex-col items-center justify-center py-12">
            <p className="text-gray-500 mb-4">No credentials found</p>
            <Button disabled>
              <Plus className="mr-2 h-4 w-4" />
              Add First Credential
            </Button>
          </CardContent>
        </Card>
      ) : (
        <div className="grid gap-4 grid-cols-1">
          <Card>
            <CardContent className="pt-6">
              <div className="text-sm text-gray-600">
                <p>Credentials feature coming soon.</p>
                <p className="mt-2">
                  <Link href="/settings/credentials/audit">
                    <Button variant="link" className="p-0">
                      View Audit Log →
                    </Button>
                  </Link>
                </p>
              </div>
            </CardContent>
          </Card>
        </div>
      )}
    </div>
  );
}