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#include "portfolio.h"
void portfolio_file_init() {
char* home = getenv("HOME");
char* path = (char*) malloc(strlen(home) + 21);
memcpy(path, home, strlen(home) + 1);
memcpy(&path[strlen(home)], "/.tick_portfolio", 17);
portfolio_file = path;
}
void portfolio_modify(char* ticker_name_string, double quantity_shares, double usd_spent, FILE* fp, int option){
if (portfolio_contains(ticker_name_string, fp)) {
long position = ftell(fp);
fseek(fp, 0, SEEK_END);
size_t length = (size_t) ftell(fp);
char* beginning = (char*) calloc(length, sizeof(char));
char* end = (char*) calloc(length, sizeof(char));
fseek(fp, 0, SEEK_SET);
for (int i = 0; i < (int) position; i++)
beginning[i] = (char) fgetc(fp);
fseek(fp, position, SEEK_SET);
double new_quantity_shares;
double new_usd_spent;
if (option == ADD) {
new_quantity_shares = get_next_val(fp) + quantity_shares;
new_usd_spent = get_next_val(fp) + usd_spent;
} else if (option == REMOVE) {
new_quantity_shares = get_next_val(fp) - quantity_shares;
new_usd_spent = get_next_val(fp) - usd_spent;
} else {
new_quantity_shares = quantity_shares;
new_usd_spent = usd_spent;
get_next_val(fp);
get_next_val(fp);
}
char c;
for (int i = 0;; i++) {
c = (char) fgetc(fp);
if (feof(fp))
break;
end[i] = c;
}
if (strlen(end) > 0 && end[strlen(end) - 1] == '\n')
end[strlen(end) - 1] = '\0';
remove(portfolio_file);
fp = fopen(portfolio_file, "w");
if (new_quantity_shares >= 0 && new_usd_spent >= 0) {
fprintf(fp, "%s%lf %lf", beginning, new_quantity_shares, new_usd_spent);
if (strlen(end) != 0)
fprintf(fp, "\n%s", end);
if (option == ADD)
printf("Added ");
else if (option == REMOVE)
printf("Removed ");
else {
printf("Set %s to %lf\n", ticker_name_string, quantity_shares);
return;
}
printf("%lf %s.\n", quantity_shares, ticker_name_string);
} else printf("You cannot remove more %s than you have!\n", ticker_name_string);
free(beginning);
free(end);
fclose(fp);
} else {
if (iex_get_current_price(ticker_name_string) == -1)
return;
if (option == REMOVE) {
printf("You don't have any %s to remove!\n", ticker_name_string);
return;
}
fseek(fp, 0, SEEK_END);
if (ftell(fp) != 0)
fprintf(fp, "\n");
fprintf(fp, "%s %lf %lf", ticker_name_string, quantity_shares, usd_spent);
if (option == ADD)
printf("Added ");
else {
printf("Set %s to %lf\n", ticker_name_string, quantity_shares);
return;
}
printf("%lf %s.\n", quantity_shares, ticker_name_string);
}
}
double portfolio_get_quantity_shares(char* ticker_name_string, FILE* fp) {
if (portfolio_contains(ticker_name_string, fp))
return get_next_val(fp);
return 0;
}
double portfolio_get_usd_spent(char* ticker_name_string, FILE* fp) {
if (portfolio_contains(ticker_name_string, fp)) {
get_next_val(fp);
return get_next_val(fp);
}
return 0;
}
void portfolio_print_all(FILE* fp) {
char* str = (char*) calloc(64, sizeof(char));
char* ticker_name_string = (char*) calloc(32, sizeof(char));
double* data;
double total_owned = 0, total_spent = 0;
int i;
char c;
while (fgets(str, 63, fp) != NULL) {
i = 0;
while ((c = str[i]) != ' ') {
ticker_name_string[i] = c;
i++;
}
data = portfolio_print_stock(ticker_name_string, fp);
if (data != NULL) {
total_owned += data[0];
total_spent += data[1];
}
memset(str, '\0', 64);
memset(ticker_name_string, '\0', 32);
free(data);
}
printf("\nTotals: Value: $%8.2lf. Expenditure: $%8.2lf. Profit: %6.2lf (%4.2lf%%)\n",
total_owned, total_spent, total_owned - total_spent, (100 * (total_owned - total_spent)) / total_spent);
free(str);
free(ticker_name_string);
}
double* portfolio_print_stock(char* ticker_name_string, FILE* fp){
double ticker_price_usd = iex_get_current_price(ticker_name_string);
double* a = malloc(sizeof(double) * 2);
if (portfolio_get_usd_spent(ticker_name_string, fp)) {
a[0] = portfolio_get_quantity_shares(ticker_name_string, fp) * ticker_price_usd;
a[1] = portfolio_get_usd_spent(ticker_name_string, fp);
if (a[0] == 0 && a[1] == 0)
printf("Your portfolio does not contain %s\n", ticker_name_string);
else
printf("%8.4lf %5s. Value: $%8.2lf. Expenditure: $%8.2lf. Profit: %6.2lf (%4.2lf%%)\n",
a[0] / ticker_price_usd, ticker_name_string, a[0], a[1], a[0] - a[1], (100 * (a[0] - a[1])) / a[1]);
} else{
free(a);
return NULL;
}
return a;
}
int portfolio_contains(char* ticker_name_string, FILE* fp) {
fseek(fp, 0, SEEK_SET);
char* temp = (char*) calloc(16, sizeof(char)), c;
int i = 0;
while (1) {
c = (char) fgetc(fp);
if (feof(fp)) {
fseek(fp, 0, 0);
free(temp);
return 0;
}
if (c == ' ') {
if (strcmp(ticker_name_string, temp) == 0) {
free(temp);
return 1;
} else {
while (fgetc(fp) != '\n') {
if (feof(fp))
break;
}
memset(temp, '\0', 16);
i = 0;
}
} else {
temp[i] = c;
i++;
}
}
}
double get_next_val(FILE* fp) {
char* temp = (char*) calloc(32, sizeof(char)), c;
int i = 0;
while ((c = (char) fgetc(fp)) != ' ' && c != '\n') {
if (feof(fp))
break;
temp[i] = c;
i++;
}
double val = strtod(temp, NULL);
free(temp);
return val;
}
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