"use client";

import { useState, useEffect } from "react";
import Image from "next/image";

// 1. Define the TypeScript interface for a GitHub User object
interface GitHubUser {
  id: number;
  login: string;
  avatar_url: string;
  html_url: string;
}

const URL = "https://api.github.com/users";

const FetchGitUsers = () => {
  // 2. Add types to state hooks
  const [users, setUsers] = useState<GitHubUser[]>([]);
  const [loading, setLoading] = useState<boolean>(true);
  const [error, setError] = useState<string | null>(null);

  useEffect(() => {
    // 3. Native Web API AbortController for fetch cleanup
    const controller = new AbortController();

    const fetchData = async () => {
      try {
        setLoading(true);
        setError(null);

        const response = await fetch(URL, { signal: controller.signal });
        console.log(response);

        if (!response.ok) {
          throw new Error(`HTTP Error! Status: ${response.status}`);
        }

        const data: GitHubUser[] = await response.json();
        setUsers(data);
      } catch (err: unknown) {
        // Ignore abort errors caused by component unmounting
        if (err instanceof Error && err.name === "AbortError") return;

        if (err instanceof Error) {
          setError(err.message);
        } else {
          setError("An unexpected error occurred.");
        }
      } finally {
        setLoading(false);
      }
    };

    fetchData();

    // 4. Clean up ongoing fetch if component unmounts
    return () => {
      controller.abort();
    };
  }, []);

  // DaisyUI Loading Spinner State
  if (loading) {
    return (
      <div className="flex flex-col items-center justify-center min-h-[50vh] gap-3">
        <span className="loading loading-spinner loading-lg text-primary"></span>
        <p className="text-base-content/70 text-sm font-medium">
          Loading GitHub Users...
        </p>
      </div>
    );
  }

  // DaisyUI Alert Error State
  if (error) {
    return (
      <div className="max-w-md mx-auto my-8">
        <div className="alert alert-error shadow-lg">
          <svg
            xmlns="http://www.w3.org/2000/svg"
            className="stroke-current shrink-0 h-6 w-6"
            fill="none"
            viewBox="0 0 24 24"
          >
            <path
              strokeLinecap="round"
              strokeLinejoin="round"
              strokeWidth="2"
              d="M10 14l2-2m0 0l2-2m-2 2l-2-2m2 2l2 2m7-2a9 9 0 11-18 0 9 9 9 0 0118 0z"
            />
          </svg>
          <span>{error}</span>
        </div>
      </div>
    );
  }

  return (
    <section className="container mx-auto p-6 max-w-5xl">
      {/* Header */}
      <div className="flex items-center justify-between border-b border-base-300 pb-4 mb-8">
        <div>
          <h2 className="text-3xl font-black text-base-content tracking-tight">
            GitHub Users
          </h2>
          <p className="text-sm text-base-content/60 mt-1">
            Fetched directly from GitHub API
          </p>
        </div>
        <div className="badge badge-primary badge-outline font-semibold">
          {users.length} Users
        </div>
      </div>

      {/* Users Grid */}
      <ul className="grid grid-cols-1 sm:grid-cols-2 md:grid-cols-3 lg:grid-cols-4 gap-6">
        {users.map((user) => {
          const { id, login, avatar_url, html_url } = user;
          return (
            <li key={id}>
              {/* DaisyUI Card Component */}
              <div className="card bg-base-100 shadow-md border border-base-200 hover:shadow-xl transition-all duration-200">
                <figure className="px-6 pt-6">
                  {/* DaisyUI Avatar Container */}
                  <div className="avatar">
                    <div className="w-24 rounded-full ring ring-primary ring-offset-base-100 ring-offset-2">
                      {/* <img src={avatar_url} alt={`${login}'s avatar`} /> */}
                      <Image
                        src={avatar_url}
                        alt={`${login}'s avatar`}
                        width={600}
                        height={600}
                      />
                    </div>
                  </div>
                </figure>
                <div className="card-body items-center text-center p-5">
                  <h3 className="card-title text-lg font-bold capitalize text-base-content">
                    {login}
                  </h3>
                  <div className="card-actions mt-3 w-full">
                    <a
                      href={html_url}
                      target="_blank"
                      rel="noreferrer"
                      className="btn btn-primary btn-sm btn-block font-medium"
                    >
                      View Profile
                    </a>
                  </div>
                </div>
              </div>
            </li>
          );
        })}
      </ul>
    </section>
  );
};

export default FetchGitUsers;