/*
 * Copyright (C) 2023 - 2024:
 * The Trinitrix Project <soispha@vhack.eu, antifallobst@systemausfall.org>
 * SPDX-License-Identifier: LGPL-3.0-or-later
 *
 * This file is part of the Trixy crate for Trinitrix.
 *
 * Trixy is free software: you can redistribute it and/or modify
 * it under the terms of the Lesser GNU General Public License as
 * published by the Free Software Foundation, either version 3 of
 * the License, or (at your option) any later version.
 *
 * This program 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
 * and the Lesser GNU General Public License along with this program.
 * If not, see <https://www.gnu.org/licenses/>.
 */

#include "../../dist/interface.h"
#include <assert.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#define println(args...)                                                       \
  fprintf(log_file, "\33[32;1m(plugin):\33[0m \33[34;1m");                     \
  fprintf(log_file, args);                                                     \
  fprintf(log_file, "\n\33[0m");                                               \
  fflush(log_file);

#define eprintln(args...)                                                      \
  fprintf(log_file, "\33[32;1m(plugin):\33[0m\33[31;1m ");                     \
  fprintf(log_file, args);                                                     \
  fprintf(log_file, "\n\33[0m");                                               \
  fflush(log_file);

int is_first_log_file_open = 1;
FILE *get_log_file() {
  FILE *log_file;

  if (is_first_log_file_open) {
    is_first_log_file_open = 0;
    log_file = fopen("plugin.txt", "w");
  } else {
    log_file = fopen("plugin.txt", "wa");
  }

  if (log_file == NULL) {
    printf("Error opening file!\n");
    exit(1);
  }

  return log_file;
}

void handle_error() {
  FILE *log_file = get_log_file();
  eprintln("GOT an error");

  int error_length = last_error_length();
  char *error = malloc(error_length);
  last_error_message(error, error_length);
  eprintln("Encountered error: %s", error);
  free(error);
}

void set_normal_mode() {
  if (!trinitrix.api.ui.set_mode(Normal))
    handle_error();
}
void set_command_mode() {
  if (!trinitrix.api.ui.set_mode(Command))
    handle_error();
}
void set_insert_mode() {
  if (!trinitrix.api.ui.set_mode(Insert))
    handle_error();
}
void print_hi() {
  if (!trinitrix.api.raw.raise_error("hi!"))
    handle_error();
}
void print_warning() {
  if (!trinitrix.api.raw.raise_error(
          "To exit trinitrix use 'trinitrix.api.exit()' instead!"))
    handle_error();
}

int plugin_main() {
  FILE *log_file = get_log_file();

  println("Hi, setting first keymap!");
  if (!trinitrix.api.keymaps.add("ci", "<ESC>", set_normal_mode))
    handle_error();
  println("Done setting that keymap");

  if (!trinitrix.api.keymaps.add("n", ":", set_command_mode))
    handle_error();

  trinitrix.api.keymaps.add("n", "i", set_insert_mode);
  trinitrix.api.keymaps.add("n", "<TAB>", trinitrix.api.ui.cycle_planes);

  // a simple test to prove that key chords work
  trinitrix.api.keymaps.add("ni", "jj", print_hi);

  trinitrix.api.keymaps.add("n", "q", trinitrix.api.exit);

  // Help people
  trinitrix.api.keymaps.add("n", "<C-c>", print_warning);

  // workaround to avoid c de-allocating our nice strings
  while (1) {
  };

  return EXIT_SUCCESS;
}