#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>

#include "ipc.h"
#include "io.h"
#include "pa1.h"
#include "util.h"

int parent_work(IOHandle *handle) {
	return 0;
}

int child_work(IOHandle *handle, void *data) {
	return 0;
}

void child_set_started_msg(char *msg, IOHandle *handle, void *data) {
	snprintf(msg, MAX_PAYLOAD_LEN, log_started_fmt
			 handle->src_pid, getpid(), handle->parent_pid);
}

void child_set_received_all_started_msg(char *msg, IOHandle *handle) {
	snprintf(msg, MAX_PAYLOAD_LEN, log_received_all_started_fmt,
			 handle->src_pid);
}

void child_set_done_msg(char *msg, IOHandle *handle, void *data) {
	snprintf(msg, MAX_PAYLOAD_LEN, log_done_fmt, handle->src_pid);
}

void child_set_received_all_done_msg(char *msg, IOHandle *handle) {
	snprintf(msg, MAX_PAYLOAD_LEN, log_received_all_done_fmt, handle->src_pid);
}

int main(int argc, char *const argv[]){
	int rc = 0;

	int proc_num = get_proc_num_from_args(argc, argv);
	if( proc_num < 0 ) return 1;

	IOHandle handle;
	rc = create_handle(proc_num, &handle);
	if( rc != 0 ) return rc;

	rc = create_pipes(&handle);
	if( rc != 0 ) return rc;

	int is_parent = spawn_childs(&handle);
	if( is_parent < 0 ) return 2;

	if( is_parent ){
		rc = parent(&handle);
	}else{
		rc = child(&handle, NULL);
	}

	free(handle.channel_table);
	return rc;
}