text: #define _XOPEN_SOURCE 500
  #include <stdlib.h>
  #include <signal.h>
  #include "log.h"
  #include "list.h"
  #include "swaynag/config.h"
  #include "swaynag/swaynag.h"
  #include "swaynag/types.h"
  
  static struct swaynag swaynag;
  
  void sig_handler(int signal) {
  	swaynag_destroy(&swaynag);
  	exit(EXIT_FAILURE);
  }
  
  void sway_terminate(int code) {
  	swaynag_destroy(&swaynag);
  	exit(code);
  }
  
  int main(int argc, char **argv) {
  	int exit_code = EXIT_SUCCESS;
  
  	list_t *types = create_list();
  	swaynag_types_add_default(types);
  
  	memset(&swaynag, 0, sizeof(swaynag));
  	swaynag.buttons = create_list();
  
  	struct swaynag_button *button_close =
  		calloc(sizeof(struct swaynag_button), 1);
  	button_close->text = strdup("X");
  	button_close->type = SWAYNAG_ACTION_DISMISS;
  	list_add(swaynag.buttons, button_close);
  
  	swaynag.details.button_details =
  		calloc(sizeof(struct swaynag_button), 1);
  	swaynag.details.button_details->text = strdup("Toggle Details");
  	swaynag.details.button_details->type = SWAYNAG_ACTION_EXPAND;
  
  	char *config_path = NULL;
  	bool debug = false;
  	int launch_status = swaynag_parse_options(argc, argv, NULL, NULL, NULL,
  			&config_path, &debug);
  	if (launch_status != 0)  {
  		exit_code = launch_status;
  		goto cleanup;
  	}
  	wlr_log_init(debug ? WLR_DEBUG : WLR_ERROR, NULL);
  
  	if (!config_path) {
  		config_path = swaynag_get_config_path();
  	}
  	if (config_path) {
  		wlr_log(WLR_DEBUG, "Loading config file: %s", config_path);
  		int config_status = swaynag_load_config(config_path, &swaynag, types);
  		free(config_path);
  		if (config_status != 0) {
  			exit_code = config_status;
  			goto cleanup;
  		}
  	}
  
  	if (argc > 1) {
  		struct swaynag_type *type_args;
  		type_args = calloc(1, sizeof(struct swaynag_type));
  		type_args->name = strdup("<args>");
  		list_add(types, type_args);
  
  		int result = swaynag_parse_options(argc, argv, &swaynag, types,
  				type_args, NULL, NULL);
  		if (result != 0) {
  			exit_code = result;
  			goto cleanup;
  		}
  	}
  
  	if (!swaynag.message) {
  		wlr_log(WLR_ERROR, "No message passed. Please provide --message/-m");
  		exit_code = EXIT_FAILURE;
  		goto cleanup;
  	}
  
  	if (!swaynag.type) {
  		swaynag.type = swaynag_type_get(types, "error");
  	}
  
  	// Construct a new type using the config defaults as base, then merging
  	// config type defaults on top, then merging arguments on top of that, and
  	// finally merging defaults on top.
  	struct swaynag_type *type = calloc(1, sizeof(struct swaynag_type));
  	type->name = strdup(swaynag.type->name);
  	swaynag_type_merge(type, swaynag_type_get(types, "<args>"));
  	swaynag_type_merge(type, swaynag.type);
  	swaynag_type_merge(type, swaynag_type_get(types, "<config>"));
  	swaynag_type_merge(type, swaynag_type_get(types, "<defaults>"));
  	swaynag.type = type;
  
  	swaynag_types_free(types);
  
  	if (swaynag.details.message) {
  		list_add(swaynag.buttons, swaynag.details.button_details);
  	} else {
  		free(swaynag.details.button_details->text);
  		free(swaynag.details.button_details);
  	}
  
  	wlr_log(WLR_DEBUG, "Output: %s", swaynag.type->output);
  	wlr_log(WLR_DEBUG, "Anchors: %d", swaynag.type->anchors);
  	wlr_log(WLR_DEBUG, "Type: %s", swaynag.type->name);
  	wlr_log(WLR_DEBUG, "Message: %s", swaynag.message);
  	wlr_log(WLR_DEBUG, "Font: %s", swaynag.type->font);
  	wlr_log(WLR_DEBUG, "Buttons");
  	for (int i = 0; i < swaynag.buttons->length; i++) {
  		struct swaynag_button *button = swaynag.buttons->items[i];
  		wlr_log(WLR_DEBUG, "\t[%s] `%s`", button->text, button->action);
  	}
  
  	signal(SIGTERM, sig_handler);
  
  	swaynag_setup(&swaynag);
  	swaynag_run(&swaynag);
  	return exit_code;
  
  cleanup:
  	swaynag_types_free(types);
  	free(swaynag.details.button_details->text);
  	free(swaynag.details.button_details);
  	swaynag_destroy(&swaynag);
  	return exit_code;
  }
  
  