/* Copyright (C) 2025 awy <awy@awy.one>

   stmusic is free software: you can redistribute it and/or
   modify it under the terms of the GNU General Public License
   as published by the Free Software Foundation,
   either version 3 of the License, or (at your option) any later version.

   stmusic is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
   General Public License for more details.

   You should have received a copy of the GNU General Public
   License along with stmusic. If not, see
   <https://www.gnu.org/licenses/>. */

#include <mpd/client.h>
#include <stdio.h>
#include <stdlib.h>

#include "../lib/util.h"

void
buttonhandler()
{
  char *term;
  char *env;
  int button;

  button = 0;
  if ((env = getenv("BLOCK_BUTTON")))
    button = getbtnint(env);

  if (!(term = getenv("TERMINAL")))
    term = "footclient";

  const char *rmpc[] = { term, "-e", "rmpc", NULL };
  const char *toggle[] = { "rmpc", "togglepause", NULL };
  const char *prev[] = { "rmpc", "prev", NULL };
  const char *next[] = { "rmpc", "next", NULL };

  switch (button) {
    case 1:
      spawn(rmpc);
      break;
    case 2:
      spawn(toggle);
      break;
    case 3:
      sendnotif("stmusic", " Music module",
                "- Shows mpd song playing.\n\
-  paused.\n\
-  repeat mode.\n\
-  shuffle mode.\n\
- 󰮯 consume mode.\n\
- 󰮯 󰇊 consume oneshot mode.\n\
- 󰎤 single mode.\n\
- 󰇊 single oneshot mode.\n\
- Left click opens rmpc.\n\
- Middle click pauses.\n\
- Scroll changes track.");
      break;
    case 4:
      spawn(prev);
      break;
    case 5:
      spawn(next);
      break;
    default: break;
  }
}

int
main(void)
{
  struct mpd_connection *conn;
  struct mpd_status *status;
  struct mpd_song *song;

  buttonhandler();

  /* Connect to MPD (default: localhost:6600) */
  conn = mpd_connection_new(NULL, 0, 30000);
  if (mpd_connection_get_error(conn) != MPD_ERROR_SUCCESS) {
    fprintf(stderr, "MPD connection error: %s\n",
            mpd_connection_get_error_message(conn));
    return 1;
  }

  /* Get MPD status */
  status = mpd_run_status(conn);
  if (!status) {
    fprintf(stderr, "Failed to get status: %s\n",
            mpd_connection_get_error_message(conn));
    mpd_connection_free(conn);
    return 1;
  }

  enum mpd_state st = mpd_status_get_state(status);

  /* Don't print anything if mpd is stopped */
  if (st == MPD_STATE_STOP) {
    return 0;
  }

  if (st == MPD_STATE_PAUSE) { printf(" "); };

  /* Get current song */
  song = mpd_run_current_song(conn);

  if (song) {
    const char *artist = mpd_song_get_tag(song, MPD_TAG_ARTIST, 0);
    const char *title  = mpd_song_get_tag(song, MPD_TAG_TITLE, 0);
    printf("%s - %s",
           artist ? artist : "unknown",
           title  ? title  : "unknown");
    mpd_song_free(song);
  }

  if (mpd_status_get_repeat(status)) { printf(" "); };
  if (mpd_status_get_random(status)) { printf(" "); };

  enum mpd_consume_state consumest = mpd_status_get_consume_state(status);
  switch (consumest) {
    case MPD_CONSUME_ONESHOT:
      printf(" 󰮯 󰇊");
      break;
    case MPD_CONSUME_ON:
      printf(" 󰮯");
      break;
    case MPD_CONSUME_UNKNOWN:
      break;
    case MPD_CONSUME_OFF:
      break;
  }

  enum mpd_single_state singlest = mpd_status_get_single_state(status);
  switch (singlest) {
    case MPD_SINGLE_ONESHOT:
      printf(" 󰇊");
      break;
    case MPD_SINGLE_ON:
      printf(" 󰎤");
      break;
    case MPD_CONSUME_UNKNOWN:
      break;
    case MPD_CONSUME_OFF:
      break;
  }

  mpd_status_free(status);
  mpd_connection_free(conn);
  return 0;
}