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#include "resources.h"
#include <stdlib.h>
#include <stddef.h>
#include <raylib.h>
#include <stdio.h>
#include <string.h>
Config config = {
.MaxOperations = DEFAULT_MAX_OPS,
};
bool startsWith(const char *str, const char *prefix) {
if (str == NULL || prefix == NULL) {
return false;
}
size_t prefix_len = strlen(prefix);
if (strlen(str) < prefix_len) {
return false;
}
return strncmp(str, prefix, prefix_len) == 0;
}
// Strips everything before '=' (including). Does not allocate.
char *stripName(char *line, size_t len) {
if (line == NULL) {
return NULL;
}
for (size_t ptr = 0; ptr < len; ptr++) {
if (line[ptr] == '\0') {
return NULL;
}
if (line[ptr] == '=') {
return &line[ptr + 1];
}
}
return NULL;
}
// Reads one line and assigns the param if found
void evaluateConfigLine(char *line) {
size_t len = strlen(line);
// Empty lines and comments
if (len <= 1 || line[0] == '#') return;
// Removing a new line
if (line[len-1] == '\n') {
line[len-1] = 0x0;
len -= 1;
}
if (startsWith(line, "MaxOperations")) {
char *value = stripName(line, len);
char *endptr;
unsigned long long parsed = strtoull(value, &endptr, 10);
if (value == endptr || *endptr != '\0') {
TraceLog(LOG_WARNING, "Failed to parse the value for MaxOperations. Provided value: '%s'", value);
return;
}
config.MaxOperations = parsed;
return;
}
}
bool ReadConfig(const char *location) {
FILE *file = fopen(location, "r");
if (file == NULL) {
perror("Failed to open the config file");
return false;
}
fseek(file, 0, SEEK_END);
long size = ftell(file);
rewind(file);
char* buffer = malloc(size + 1);
if (buffer == NULL) {
fclose(file);
perror("Failed to load the config file");
return false;
}
while (fgets(buffer, size, file)) {
evaluateConfigLine(buffer);
}
free(buffer);
fclose(file);
return true;
}
Config *GetConfig() {
return &config;
}
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