#ifndef PROGRAM4_SERVER_H
#define PROGRAM4_SERVER_H

#define MAX_PEERS 1000

// each client may only publish 10 files, each with a length of 255
#define MAX_FILES 10
#define MAX_FILENAME_LEN 255

#include <malloc.h>
#include <netdb.h>
#include <stdio.h>
#include <string.h>
#include <arpa/inet.h>

struct peer_entry {
    uint32_t id; // ID of peer
    int socket_descriptor; // Socket descriptor for connection to peer
    char files[MAX_FILES][MAX_FILENAME_LEN]; // Files published by peer
    struct sockaddr_in address; // Contains IP address and port number
};

// Returns index of a peer_entry from an array with the given file descriptor
int find_peer(struct peer_entry **peers, int file_descriptor);

// Control flow function for handling commands from peers
int process_request(char *buf, struct peer_entry **peers, int socket_descriptor);

//Process Request sends to these three functions
int parse_join(char *buf, struct peer_entry *peer);

int parse_publish(char *buf, struct peer_entry *peer);

int parse_search(char *buf, struct peer_entry **peers, int sender_fd);

// Returns the index of the first open peer
int find_open_peer(struct peer_entry **peers);


#endif //PROGRAM4_SERVER_H