/* compiled with:
 *      clang `pkg-config --libs json-c` fm.c
 */

#include <stdio.h>
#include <json-c/json.h>
#include <string.h>

#define MAX_NAME	30
#define ESC_FIN		"\x1b[0m"

char *rgb_to_esc(const char *rgb)
{
	int r, g, b;
	char *esc = malloc(24);

	sscanf(rgb, "#%02x%02x%02x", &r, &g, &b);
	sprintf(esc, "\x1b[38;2;%d;%d;%dm", r, g, b);

	return esc;
}

char *make_name(json_object *name)
{
	const char *name_raw = json_object_get_string(name);
	char *name_str = malloc(MAX_NAME);
	int name_len= strlen(name_raw);
	if (name_len < MAX_NAME)
	{
		strcpy(name_str, name_raw);
		memset(&name_str[name_len], ' ', MAX_NAME-name_len);
	}
	else
	{
		strncpy(name_str, name_raw, MAX_NAME-3);
		strcat(name_str, "...");
	}

	return name_str;
}

void print_line(json_object *team)
{
	json_object *name= json_object_object_get(team, "name");
	json_object *pts = json_object_object_get(team, "pts");
	json_object *pos = json_object_object_get(team, "idx");
	json_object *qualColor = json_object_object_get(team, "qualColor");
	char *col;
	if (!json_object_is_type(qualColor, json_type_null))
		col = rgb_to_esc(json_object_get_string(qualColor));
	else
		col = rgb_to_esc("#FFFFFF");

	printf("%s%2d %s%3d%s\n", col,
			json_object_get_int(pos),
			make_name(name),
			json_object_get_int(pts),
			ESC_FIN);
}

int main(void)
{
	json_object *root = json_object_from_file("laliga.json");
	if (!root)
		return 1;

	json_object *table_data = json_object_array_get_idx(json_object_object_get(root, "table"), 0);
	table_data = json_object_object_get(table_data, "data");
	json_object *legend = json_object_object_get(table_data, "legend");
	json_object *table = json_object_object_get(table_data, "table");
	json_object *table_all = json_object_object_get(table, "all");

	int n = json_object_array_length(table_all);
	for (int i = 0; i < n; i++)
	{
		json_object *team;
		team = json_object_array_get_idx(table_all, i);
		print_line(team);
		free(team);
	}

	json_object_put(root);
	return 0;
}