config.c

#include <stddef.h>
#include <stdio.h>
#include "raylib.h"

#include "../extern_libs/cJSON/cJSON.h"
#include "../extern_libs/cJSON/cJSON_Utils.h"

#include "headers/views.h"
#include "headers/errors.h"

struct ControllerInput input_mapping[16];

void load_bool(cJSON *object, bool *dst, char *key) {
	cJSON *input_data;
	input_data = cJSON_GetObjectItemCaseSensitive(object, key);
	if (!cJSON_IsBool(input_data) && !cJSON_IsNull(input_data)) throw_error(ERROR_CONFIG_EXAMPLE_NOT_FOUND);
	if (cJSON_IsNull(input_data))
		*dst = false;
	else
		*dst = input_data->valueint;
}

void load_int(cJSON *object, int *dst, char *key) {
	cJSON *input_data;
	input_data = cJSON_GetObjectItemCaseSensitive(object, key);
	if (!cJSON_IsNumber(input_data) && !cJSON_IsNull(input_data)) throw_error(ERROR_CONFIG_EXAMPLE_NOT_FOUND);
	if (cJSON_IsNull(input_data))
		*dst = -1;
	else
		*dst = input_data->valueint;
}


void lj(char *json) {
	const cJSON *mapping = NULL;
	cJSON *input = NULL;
	cJSON *input_data = NULL;

	cJSON *monitor_json = cJSON_Parse(json);
	if (monitor_json == NULL)
	{
		//	const char *error_ptr = cJSON_GetErrorPtr();
		//	if (error_ptr != NULL)
		//	{
		//		fprintf(stderr, "Error before: %s\n", error_ptr);
		//	}
		throw_error(ERROR_CONFIG_EXAMPLE_NOT_FOUND);
	}
	mapping = cJSON_GetObjectItemCaseSensitive(monitor_json, "mapping");
	
		
	if (!cJSON_IsObject(mapping)) throw_error(ERROR_CONFIG_EXAMPLE_NOT_FOUND);

	for (size_t i = 0; i < 16; i++)
	{
		input = cJSON_GetObjectItemCaseSensitive(mapping, input_mapping[i].id_name);
		if (!cJSON_IsObject(input)) throw_error(ERROR_CONFIG_EXAMPLE_NOT_FOUND);

		load_bool(input, &input_mapping[i].is_axis, "is_axis");
		load_bool(input, &input_mapping[i].flipped, "flipped");
		load_int(input, &input_mapping[i].index, "index");
	}
}

void config_save() {
	char *json_config_str = NULL;
	cJSON *root = cJSON_CreateObject();
	cJSON *mapping = cJSON_AddObjectToObject(root, "mapping");
	for (size_t i = 0; i < 16; i++) {
		cJSON *input = cJSON_AddObjectToObject(mapping, input_mapping[i].id_name);
		cJSON_AddBoolToObject(input, "is_axis", input_mapping[i].is_axis);
		cJSON_AddBoolToObject(input, "flipped", input_mapping[i].flipped);
		cJSON_AddNumberToObject(input, "index", input_mapping[i].index);
	}
	json_config_str = cJSON_Print(root);
	FILE* fp;
	int err = fopen_s(&fp, "config.json", "w");
	if (err < 0) {
		throw_error(ERROR_CONFIG_EXAMPLE_NOT_FOUND);
		view_state = VIEW_EXIT;
		return;
	}
	fprintf(fp, json_config_str);
	fclose(fp);
}

#define NewControllerInput(i, id, _axis, _flip, _index, path, _name, x, y) \
do { \
	input_mapping[i].id_name = id; \
	input_mapping[i].is_axis = _axis; \
	input_mapping[i].flipped = _flip; \
	input_mapping[i].index = _index; \
	input_mapping[i].image = LoadTexture(path); \
	input_mapping[i].name = _name; \
	input_mapping[i].text_pos = (Vector2) { x, y }; \
} while(0)
	

void init_mapping() {
	NewControllerInput(0, "A", false, false, -1, "resources/images/controller/a.png", "A Button", 731, 328);
	NewControllerInput(1, "B", false, false, -1, "resources/images/controller/b.png", "B Button", 731, 390);
	NewControllerInput(2, "C-U", false, false, -1, "resources/images/controller/c_u.png", "C-UP Button", 731, 85);
	NewControllerInput(3, "C-R", false, false, -1, "resources/images/controller/c_r.png", "C-RIGHT Button", 731, 145);
	NewControllerInput(4, "C-D", false, false, -1, "resources/images/controller/c_d.png", "C-DOWN Button", 731, 205);
	NewControllerInput(5, "C-L", false, false, -1, "resources/images/controller/c_l.png", "C-LEFT Button", 731, 266);
	NewControllerInput(6, "AN-LR", false, false, -1, "resources/images/controller/analog_lr.png", "Analog Left-Right", 574, 529);
	NewControllerInput(7, "AN-DU", false, false, -1, "resources/images/controller/analog_du.png", "Analog Down-Up", 574, 590);
	NewControllerInput(8, "Z", false, false, -1, "resources/images/controller/z.png", "Z Trigger", 166, 590);
	NewControllerInput(9, "D-U", false, false, -1, "resources/images/controller/digi_u.png", "Digital Up", 7, 158);
	NewControllerInput(10, "D-R", false, false, -1, "resources/images/controller/digi_r.png", "Digital Right", 7, 345);
	NewControllerInput(11, "D-D", false, false, -1, "resources/images/controller/digi_d.png", "Digital Down", 7, 283);
	NewControllerInput(12, "D-L", false, false, -1, "resources/images/controller/digi_l.png", "Digital Left", 7, 220);
	NewControllerInput(13, "L", false, false, -1, "resources/images/controller/l.png", "L Button", 7, 94);
	NewControllerInput(14, "R", false, false, -1, "resources/images/controller/r.png", "R Button", 731, 22);
	NewControllerInput(15, "S", false, false, -1, "resources/images/controller/start.png", "Start", 166, 529);
}

void load_config() {
	char *json_config_str;
	
	init_mapping();

	if (!FileExists("config.json")) {		
		if (!FileExists("config.example.json")) {
			throw_error(ERROR_CONFIG_EXAMPLE_NOT_FOUND);
			view_state = VIEW_EXIT;
			return;
		}
		FILE* fp;
		json_config_str = LoadText("config.example.json");
		int err = fopen_s(&fp, "config.json", "w+");
		if (err < 0) {
			throw_error(ERROR_CONFIG_EXAMPLE_NOT_FOUND);
			view_state = VIEW_EXIT;
			return;
		}
		fprintf(fp, json_config_str);
		fclose(fp);
	} else {
		json_config_str = LoadText("config.json");
	}
	lj(json_config_str);
}