"use client";

import { useState, useEffect } from "react";
import type { Domain } from "@mosaic/shared";
import { DomainList } from "@/components/domains/DomainList";
import { fetchDomains, deleteDomain } from "@/lib/api/domains";

export default function DomainsPage(): React.ReactElement {
  const [domains, setDomains] = useState<Domain[]>([]);
  const [isLoading, setIsLoading] = useState<boolean>(true);
  const [error, setError] = useState<string | null>(null);

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

  async function loadDomains(): Promise<void> {
    try {
      setIsLoading(true);
      const response = await fetchDomains();
      setDomains(response.data);
      setError(null);
    } catch (err) {
      setError(err instanceof Error ? err.message : "Failed to load domains");
    } finally {
      setIsLoading(false);
    }
  }

  function handleEdit(domain: Domain): void {
    // TODO: Open edit modal/form
    console.log("Edit domain:", domain);
  }

  async function handleDelete(domain: Domain): Promise<void> {
    if (!confirm(`Are you sure you want to delete "${domain.name}"?`)) {
      return;
    }

    try {
      await deleteDomain(domain.id);
      await loadDomains();
    } catch (err) {
      setError(err instanceof Error ? err.message : "Failed to delete domain");
    }
  }

  return (
    <div className="max-w-6xl mx-auto p-6">
      <div className="mb-6">
        <h1 className="text-3xl font-bold mb-2">Domains</h1>
        <p className="text-gray-600">Organize your tasks and projects by life areas</p>
      </div>

      {error && (
        <div className="mb-6 p-4 bg-red-50 border border-red-200 rounded text-red-700">{error}</div>
      )}

      <div className="mb-6">
        <button
          className="px-4 py-2 bg-gray-900 text-white rounded hover:bg-gray-800"
          onClick={() => {
            console.log("TODO: Open create modal");
          }}
        >
          Create Domain
        </button>
      </div>

      <DomainList
        domains={domains}
        isLoading={isLoading}
        onEdit={handleEdit}
        onDelete={handleDelete}
      />
    </div>
  );
}