'use client'

import { FormEvent, MouseEvent, useState, useEffect } from 'react';
import { useParams } from 'next/navigation'
import { Album } from '@/entities/album.entity';
import { Song } from '@/entities/song.entity';
import { TimeUtils } from '@/utils/time.util';
import { StringUtils } from '@/utils/string.util';
import { createSong, deleteSong, getAlbum, getSong, updateSong } from '@/app/actions';
import Button from 'react-bootstrap/Button';
import Modal from 'react-bootstrap/Modal';
import { IconButton } from '@mui/material';
import { AddCircleOutline, Delete, Edit } from '@mui/icons-material';

export default function Page() {
  const [album, setAlbum] = useState<Album>();
  const [show, setShow] = useState(false);
  const handleClose = () => setShow(false);
  const handleShow = () => setShow(true);
  const [formAlbumId, setFormAlbumId] = useState("");
  const [formSongId, setFormSongId] = useState("");
  const [formSongTitle, setFormSongTitle] = useState("");
  const [formSongDuration, setFormSongDuration] = useState("");
  const [formSongTrackNumber, setFormSongTrackNumber] = useState("");
  const [formModalTitle, setFormModalTitle] = useState("Add Song");
  const [formModalButtonLabel, setFormModalButtonLabel] = useState("Add");

  const params = useParams<{ id: string }>();
  const albumId = params.id;

  useEffect(() => {
    async function fetchAlbum(albumId: string) {
      try {
        const data = await getAlbum(parseInt(albumId));
        setAlbum(data);
      } catch (error) {
        console.error(`Error getting album with id ${albumId}`, error);
      }
    }
    fetchAlbum(albumId);
  }, [albumId]);

  const handleSubmit = async (event: FormEvent<HTMLFormElement>) => {
    event.preventDefault();
    handleClose();

    const formData = new FormData(event.currentTarget);
    try {
      if (StringUtils.isBlank(formData.get('id'))) {
        const data = await createSong(formData);
        console.log(data);
      } else {
        const data = await updateSong(formData);
        console.log(data);
      }
    } catch (error) {
      console.error("Error creating Song: ", error);
    }
  }

  const handleCreate = async () => {
    setFormModalTitle("Add Song");
    setFormModalButtonLabel("Add");
    setFormAlbumId(albumId);
    setFormSongId("");
    setFormSongTitle("");
    setFormSongDuration("");
    setFormSongTrackNumber("");
    handleShow();
  }

  const handleEdit = async (event: MouseEvent<HTMLElement>) => {
    const songId = event.currentTarget.getAttribute('song-id');
    if (songId) {
      try {
        const data = await getSong(parseInt(songId));
        setFormModalTitle("Edit Song");
        setFormModalButtonLabel("Save");
        setFormSongId(data.id)
        setFormAlbumId(albumId);
        setFormSongTitle(data.title);
        setFormSongDuration(data.duration);
        setFormSongTrackNumber(data.trackNumber);
        handleShow();
      } catch (error) {
        console.error(`Error getting song with ID ${songId}:`, error);
      }
    } else {
      console.error("Couldn't get ID of clicked element");
    }
  }

  const handleDelete = async (event: MouseEvent<HTMLElement>) => {
    const songId = event.currentTarget.getAttribute('song-id');
    if (songId) {
      try {
        await deleteSong(parseInt(songId));
      } catch (error) {
        console.error(`Error deleting song with ID ${songId}:`, error);
      }
    } else {
      console.error("Couldn't get ID of clicked element");
    }
  }

  if (!album) return <div>Loading...</div>

  return (
    <>
    <div className="container">
      <div className="eight columns">
        <div>
          <em>{album.title}</em> by {album.artist} ({album.genre})
        </div>
        <IconButton aria-label="Add Album" size="large" onClick={handleCreate}>
          <AddCircleOutline fontSize="inherit" color="success"/>
        </IconButton>
        <table className="u-full-width">
          <thead>
            <tr>
              <th>#</th>
              <th>Title</th>
              <th>Duration</th>
              <th>Controls</th>
            </tr>
          </thead>
          <tbody>
          {album.songs.map((song: Song) => (
            <tr key={song.id}>
              <td>{song.trackNumber}</td>
              <td>{song.title}</td>
              <td>{TimeUtils.fancyTimeFormat(song.duration)}</td>
              <td>
                <IconButton aria-label="Edit Song" size="small" song-id={song.id.toString()} onClick={handleEdit}>
                  <Edit fontSize="inherit" color="success"/>
                </IconButton>
                <IconButton aria-label="Delete Song" size="small" song-id={song.id.toString()} onClick={handleDelete}>
                  <Delete fontSize="inherit" color="success"/>
                </IconButton>
              </td>
            </tr>
          ))}
          </tbody>
        </table>
      </div>
    </div>

    <Modal
      show={show}
      onHide={handleClose}
      backdrop="static"
      keyboard={false}
    >
      <Modal.Header closeButton>
        <Modal.Title>{formModalTitle}</Modal.Title>
      </Modal.Header>
      <Modal.Body>
        <div>
          <form onSubmit={handleSubmit}>
            <input name="id" id="song-id" value={formSongId} type="hidden" />
            <input name="albumId" id="album-id" value={formAlbumId} type="hidden" />
            <div className="row">
              <div className="six columns">
                <label htmlFor="song-title">Song Title</label><input type="text" name="title" id="song-title" defaultValue={formSongTitle} />
              </div>
              <div className="six columns">
                <label htmlFor="song-duration">Duration (seconds)</label><input type="text" name="duration" id="song-duration" defaultValue={formSongDuration} />
              </div>
            </div>
            <div className="row">
              <div className="six columns">
                <label htmlFor="song-trackNumber">Track Number</label><input type="text" name="trackNumber" id="song-trackNumber" defaultValue={formSongTrackNumber} />
              </div>
            </div>
            <Button variant="primary" type="submit">{formModalButtonLabel}</Button>
          </form>
        </div>
      </Modal.Body>
      <Modal.Footer>
        <Button variant="secondary" onClick={handleClose}>
          Close
        </Button>
      </Modal.Footer>
    </Modal>
    </>
  );
}