import { useEffect, useState } from "react";
import { useNavigate } from "react-router-dom";
import { toast } from "react-toastify";
import axiosInstance, { baseURL } from "../api/axiosInstance";
import { useAuth } from "../context/authContext";
import { usePlayer } from "../context/playerContext";
import type { BasicSong, SidebarProps } from "../utils/types";
import { toEmbedUrl } from "../utils/utils";
import { useCreatedPlaylists } from "../context/playlistContext";
import CreatePlaylistModal from "./playlist/CreatePlaylistModal";
import { getErrorMessage } from "../utils/error";

const Sidebar = ({ isOpen, onClose }: SidebarProps) => {
  const { user } = useAuth();
  const {
    createdPlaylists,
    isLoading: playlistsLoading,
    refreshPlaylists,
  } = useCreatedPlaylists();
  const navigate = useNavigate();
  const { play, currentSong } = usePlayer();
  const [recentlyListened, setRecentlyListened] = useState<BasicSong[]>([]);
  const [songsLoading, setSongsLoading] = useState(false);
  const [isModalOpen, setIsModalOpen] = useState(false);

  useEffect(() => {
    const fetchData = async () => {
      setSongsLoading(true);
      try {
        const data = await axiosInstance.get<BasicSong[]>("/songs/recent");
        setRecentlyListened(data.data);
      } catch (error) {
        toast.error(getErrorMessage(error));
      } finally {
        setSongsLoading(false);
      }
    };
    if (user) {
      fetchData();
    } else {
      setRecentlyListened([]);
      setSongsLoading(false);
    }
  }, [user]);

  const isLoading = songsLoading || playlistsLoading;

  return (
    <>
      <div
        className={`fixed left-0 top-0 h-full bg-[#121212] border-r border-white/10 transition-transform duration-300 ease-in-out z-40 ${
          isOpen ? "translate-x-0" : "-translate-x-full"
        } w-64 overflow-y-auto`}
      >
        <div className="p-6">
          {/* Sidebar Header */}
          <div className="flex justify-between items-center mb-6 pt-2">
            <h2 className="text-xl font-bold text-white">Library</h2>
            <button
              onClick={onClose}
              className="text-gray-400 hover:text-white transition-colors"
              aria-label="Close sidebar"
            >
              <svg
                className="w-6 h-6"
                fill="none"
                stroke="currentColor"
                viewBox="0 0 24 24"
              >
                <path
                  strokeLinecap="round"
                  strokeLinejoin="round"
                  strokeWidth={2}
                  d="M6 18L18 6M6 6l12 12"
                />
              </svg>
            </button>
          </div>

          {/* Loading State */}
          {isLoading ? (
            <div className="flex items-center justify-center py-16">
              <div className="animate-spin rounded-full h-12 w-12 border-b-2 border-[#1db954]"></div>
            </div>
          ) : (
            <>
              {/* Recently Listened */}
              <div className="mb-8">
                <h3 className="text-sm font-semibold text-gray-400 uppercase tracking-wider mb-4">
                  Recently Played
                </h3>
                <div className="space-y-3">
                  {recentlyListened.map((song) => (
                    <div
                      key={song.id}
                      className="flex items-center gap-3 p-2 rounded-lg hover:bg-white/5 cursor-pointer transition-colors group relative"
                    >
                      <img
                        src={
                          song.cover
                            ? `${baseURL}/${song.cover}`
                            : "/favicon.png"
                        }
                        alt={song.title}
                        className="w-10 h-10 rounded object-cover"
                        onError={(e) => {
                          (e.target as HTMLImageElement).src = "/favicon.png";
                        }}
                      />
                      <div className="flex-1 min-w-0">
                        <p
                          onClick={() => navigate(`/songs/${song.id}`)}
                          className="text-sm font-medium text-white truncate hover:underline cursor-pointer"
                        >
                          {song.title}
                        </p>
                        <div className="flex items-center gap-1 text-xs text-gray-400">
                          <span
                            onClick={(e) => {
                              e.stopPropagation();
                              if (song.artistUsername) {
                                navigate(`/users/${song.artistUsername}`);
                              }
                            }}
                            className={`truncate ${
                              song.artistUsername
                                ? "hover:underline cursor-pointer hover:text-white"
                                : ""
                            }`}
                          >
                            {song.artist}
                          </span>
                          {song.album && (
                            <>
                              <span>•</span>
                              <span
                                onClick={(e) => {
                                  e.stopPropagation();
                                  if (song.albumId) {
                                    navigate(
                                      `/collection/album/${song.albumId}`,
                                    );
                                  }
                                }}
                                className={`truncate ${
                                  song.albumId
                                    ? "hover:underline cursor-pointer hover:text-white"
                                    : ""
                                }`}
                              >
                                {song.album}
                              </span>
                            </>
                          )}
                        </div>
                      </div>
                      {song.link && (
                        <button
                          onClick={(e) => {
                            e.stopPropagation();
                            play({
                              id: song.id,
                              title: song.title,
                              artist: song.artist,
                              cover: song.cover,
                              embedUrl: toEmbedUrl(song.link!),
                            });
                          }}
                          className={`p-1.5 rounded-full transition-all opacity-0 group-hover:opacity-100 ${
                            currentSong?.id === song.id
                              ? "bg-white text-[#1db954]"
                              : "bg-[#1db954] text-black hover:scale-110"
                          }`}
                          aria-label={
                            currentSong?.id === song.id
                              ? "Now playing"
                              : "Play song"
                          }
                        >
                          {currentSong?.id === song.id ? (
                            <svg
                              className="w-4 h-4"
                              fill="currentColor"
                              viewBox="0 0 24 24"
                            >
                              <path d="M6 19h4V5H6v14zm8-14v14h4V5h-4z" />
                            </svg>
                          ) : (
                            <svg
                              className="w-4 h-4"
                              fill="currentColor"
                              viewBox="0 0 24 24"
                            >
                              <path d="M8 5v14l11-7z" />
                            </svg>
                          )}
                        </button>
                      )}
                    </div>
                  ))}
                </div>
              </div>

              {/* Playlists */}
              <div>
                <h3 className="text-sm font-semibold text-gray-400 uppercase tracking-wider mb-4">
                  Your Playlists
                </h3>
                <div className="space-y-2">
                  {createdPlaylists?.map((playlist) => (
                    <div
                      key={playlist.id}
                      onClick={() => {
                        navigate(`/collection/playlist/${playlist.id}`);
                      }}
                      className="flex items-center justify-between p-3 rounded-lg hover:bg-white/5 cursor-pointer transition-colors"
                    >
                      <div className="flex items-center gap-3">
                        <div className="w-10 h-10 bg-linear-to-br from-purple-500 to-pink-500 rounded flex items-center justify-center">
                          <svg
                            className="w-5 h-5 text-white"
                            fill="currentColor"
                            viewBox="0 0 20 20"
                          >
                            <path d="M18 3a1 1 0 00-1.196-.98l-10 2A1 1 0 006 5v9.114A4.369 4.369 0 005 14c-1.657 0-3 .895-3 2s1.343 2 3 2 3-.895 3-2V7.82l8-1.6v5.894A4.37 4.37 0 0015 12c-1.657 0-3 .895-3 2s1.343 2 3 2 3-.895 3-2V3z" />
                          </svg>
                        </div>
                        <div>
                          <p className="text-sm font-medium text-white">
                            {playlist.name}
                          </p>
                          <p className="text-xs text-gray-400">
                            {playlist.songCount} songs
                          </p>
                        </div>
                      </div>
                    </div>
                  ))}

                  {/* Create Playlist Button */}
                  <button
                    onClick={() => setIsModalOpen(true)}
                    className="w-full flex items-center gap-3 p-3 rounded-lg hover:bg-white/5 cursor-pointer transition-colors group mt-2"
                  >
                    <div className="w-10 h-10 bg-[#282828] group-hover:bg-[#3a3a3a] rounded flex items-center justify-center transition-colors">
                      <svg
                        className="w-5 h-5 text-gray-400 group-hover:text-white transition-colors"
                        fill="none"
                        stroke="currentColor"
                        viewBox="0 0 24 24"
                      >
                        <path
                          strokeLinecap="round"
                          strokeLinejoin="round"
                          strokeWidth={2}
                          d="M12 4v16m8-8H4"
                        />
                      </svg>
                    </div>
                    <p className="text-sm font-medium text-gray-400 group-hover:text-white transition-colors">
                      Create Playlist
                    </p>
                  </button>
                </div>
              </div>
            </>
          )}
        </div>
      </div>

      <CreatePlaylistModal
        isOpen={isModalOpen}
        onClose={() => setIsModalOpen(false)}
        onSuccess={() => refreshPlaylists(false)}
        songId={null}
      />
    </>
  );
};

export default Sidebar;