/*
 * The handling of +CMGW responses and send-after-write for fcup-smsend
 * family is implemented here.
 */

#include <sys/types.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <strings.h>
#include "../../rvinterf/include/exitcodes.h"
#include "resp_parse.h"

extern char at_response[];
extern int sms_write_mode;

struct saw_rec {
	unsigned	msgid;
	struct saw_rec	*next;
};

struct saw_rec *sendafterwr_head, **sendafterwr_tail = &sendafterwr_head;

add_sendafterwr_record(msgid)
	unsigned msgid;
{
	struct saw_rec *rec;

	rec = malloc(sizeof(struct saw_rec));
	if (!rec) {
		perror("malloc for send-after-write record");
		exit(ERROR_UNIX);
	}
	rec->msgid = msgid;
	rec->next = 0;
	*sendafterwr_tail = rec;
	sendafterwr_tail = &rec->next;
}

cmgw_callback()
{
	struct resp_field fields[1];
	int cc;

	/* skip empty lines */
	if (!at_response[1])
		return;
	/* if not empty, it MUST be +CMGW */
	if (strncmp(at_response+1, "+CMGW: ", 7)) {
		fprintf(stderr, "error: response from target is not +CMGW\n");
		exit(ERROR_TARGET);
	}
	if (sms_write_mode == 2) {
		puts(at_response+1);
		return;
	}
	if (parse_structured_response(at_response+8, fields, 1) != 1) {
malformed:	fprintf(stderr, "error: malformed +CMGW response\n");
		exit(ERROR_TARGET);
	}
	if (fields[0].type != RESP_FIELD_NUMBER)
		goto malformed;
	add_sendafterwr_record(fields[0].num);
}

sendafterwr_process()
{
	struct saw_rec *rec;
	char cmss_cmd[32];

	if (!sendafterwr_head) {
		fprintf(stderr,
			"error: no +CMGW response received from target\n");
		exit(ERROR_TARGET);
	}
	if (sendafterwr_head->next)
		atinterf_exec_cmd_needok("AT+CMMS=1", 0, 0);
	for (rec = sendafterwr_head; rec; rec = rec->next) {
		sprintf(cmss_cmd, "AT+CMSS=%u", rec->msgid);
		atinterf_exec_cmd_needok(cmss_cmd, 0, 0);
	}
	if (sendafterwr_head->next)
		atinterf_exec_cmd_needok("AT+CMMS=0", 0, 0);
}