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#ifndef PORTFOLIO_H
#define PORTFOLIO_H
#include <math.h>
#include <unistd.h>
#include "api.h"
#include "rc4.h"
#define REMOVE 0
#define ADD 1
#define SET 2
#define DECRYPT 0
#define ENCRYPT 1
const char* portfolio_file;
/**
* Sets portfolio_file to $HOME/.tick_portfolio.json
*/
void portfolio_file_init();
/**
* Stores the given file in a string and returns it
* @param fp the file
* @param len sets *len to the size of the string -- used for decryption (some chars will be encrypted to '\0', so
* the returned string will be null terminated somewhere in the middle several times
* @return the string containing the file
*/
char* portfolio_file_get_string(FILE* fp, size_t* len);
/**
* Adds quantity_shares of given symbol at given price to portfolio
* @param id name of currency
* @param quantity_shares quantity_shares of currency
* @param purchase_price quantity_shares of money spent
* @param fp portfolio file
*/
void portfolio_modify(char* ticker_name_string, double quantity_shares, double usd_spent, FILE* fp, int option);
/**
* Prints current holdings of all symbols
* @param api_data STRING to hold data in
* @param crypto_data JSON to hold STRING data in
* @param fp portfolio file
*/
void portfolio_print_all(FILE* fp);
/**
* Prints current holdings of a symbol
* @param id name of currency, NULL if printing all
* @param fp portfolio file, NULL if printing all
* @param current_index portfolio file index, NULL if printing one
*/
double* portfolio_print_stock(char* ticker_name_string, FILE* fp, Json* current_index);
/**
* Returns the index in the Json array of the given symbol
* @param ticker_name_string the symbol
* @param jarray the array
* @return -1 if not found, the index otherwise
*/
int portfolio_symbol_index(char* ticker_name_string, Json* jarray);
/**
* Returns a string from the current stream pointer to the next space, newline, or EOF
* @param fp the file
* @return the string
*/
char* portfolio_legacy_get_next_val(FILE* fp);
/**
* Adds contents of legacy portfolio to JSON formatted portfolio
* @param fp JSON formatted portfolio
*/
void portfolio_legacy_convert();
/**
* Returns an either encrypted or decrypted string of the input
* @param input the string to encrypt or decrypt
* @param input_len the length of the string
* @param password the password to encrypt or decrypt with
* @return encrypted or decrypted string
*/
char* portfolio_get_encrypt_string(char* input, size_t input_len, char* password);
/**
* Either encrypts or decrypts the portfolio file
* @param option ENCRYPT or DECRYPT
* @param fp portfolio file
*/
void portfolio_encrypt_decrypt(int option, FILE* fp);
#endif
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