/* $Header$
 */

#include <stdio.h>
#include <string.h>
#include <ctype.h>
#include <sys/time.h>
#include <moira.h>
#include <moira_site.h>
EXEC SQL INCLUDE sqlca;


#define WHO 11859		/* root */
#define PROG "emp-tape"

#define MAX_ID_VALUE	31999
#define MIN_ID_VALUE	101

/* File format is:

0-8	id number
9-38	name
39-62	office address
63-74	phone1
75-86	phone2
87-106	dept
107-156	title
157-186	username
187-241	host

*/

#define LOC_ID 0
#define LOC_NAME 9
#define LOC_OFFICE 39
#define LOC_PHONE 63
#define LOC_PHONE2 75
#define LOC_DEPT 87
#define LOC_TITLE 107
#define LOC_USERNAME 157
#define LOC_HOST 187

#define LEN_ID 9
#define LEN_NAME 30
#define LEN_OFFICE 24
#define LEN_PHONE 12
#define LEN_PHONE2 12
#define LEN_DEPT 20
#define LEN_TITLE 50
#define LEN_USERNAME 30
#define LEN_HOST 55


struct entry {
  char *name;
  char *last;
  char *first;
  char *middle;
  char *title;
  char *class;
  char *id;
  char *eid;
  char *dept;
  char *address;
  char *phone;
  char *phone2;
  int highid;
};


char *whoami;
int newfinger = 0;

#define sqlfail() (sqlca.sqlcode && sqlca.sqlcode != 1403)
#define SQL_DUPLICATE -2112


int main(int argc, char **argv)
{
  FILE *in;
  struct entry *e, *get_next_entry();
  int i, wait = 0;
  char buf[BUFSIZ], *file = NULL;
  EXEC SQL BEGIN DECLARE SECTION;
  char *db = "moira";
  EXEC SQL END DECLARE SECTION;

  whoami = strrchr(argv[0], '/');
  if (whoami)
    whoami++;
  else
    whoami = argv[0];

  setvbuf(stdout, NULL, _IOLBF, BUFSIZ);
  setvbuf(stderr, NULL, _IOLBF, BUFSIZ);

  for (i = 1; i < argc; i++)
    {
      if (!strcmp(argv[i], "-w"))
	wait++;
      else if (!strcmp(argv[i], "-D"))
	setenv("ING_SET", "set printqry");
      else if (!strcmp(argv[i], "-n"))
	newfinger++;
      else if (file)
	fprintf(stderr, "Usage: %s [-w] [-D] [-n] inputfile\n", whoami);
      else
	file = argv[i];
    }

  in = fopen(file, "r");
  if (!in)
    {
      fprintf(stderr, "Unable to open %s for input\n", file);
      exit(1);
    }

  initialize_sms_error_table();

  EXEC SQL CONNECT :db IDENTIFIED BY :db;
  if (sqlca.sqlcode)
    {
      dbmserr("opening database", sqlca.sqlcode);
      exit(1);
    }

  while ((e = get_next_entry(in)))
    {
    again:
      process_entry(e);
      EXEC SQL COMMIT WORK;
      if (sqlca.sqlcode)
	{
	  dbmserr("committing work", sqlca.sqlcode);
	  exit(1);
	}
      if (wait)
	{
	  printf("Next");
	  fflush(stdout);
	  gets(buf);
	}
    }

  exit(0);
}


char *substr(char *buf, char *key)
{
  int l;

  for (l = strlen(key); *buf; buf++)
    {
      if (!strncmp(buf, key, l))
	return buf;
    }
  return NULL;
}


struct entry *get_next_entry(FILE *in)
{
  static struct entry e;
  static char buf[BUFSIZ], mid[16], eid[16];
  static char name[LEN_NAME + 1], sname[LEN_NAME + 1], id[LEN_ID + 1];
  static char office[LEN_OFFICE + 1], phone[LEN_PHONE + 1];
  static char phone2[LEN_PHONE2 + 1], dept[LEN_DEPT + 1], title[LEN_TITLE + 1];
  static char username[LEN_USERNAME + 1], host[LEN_HOST + 1];
  int ends_sr, ends_jr, ends_iii, ends_iv, ends_ii, ends_v;
  char *p;

  if (!fgets(buf, sizeof(buf), in))
    return NULL;

  strncpy(id, &buf[LOC_ID], LEN_ID);
  id[LEN_ID] = '\0';
  strncpy(name, &buf[LOC_NAME], LEN_NAME);
  name[LEN_NAME] = '\0';
  strncpy(office, &buf[LOC_OFFICE], LEN_OFFICE);
  office[LEN_OFFICE] = '\0';
  strncpy(phone, &buf[LOC_PHONE], LEN_PHONE);
  phone[LEN_PHONE] = '\0';
  strncpy(phone2, &buf[LOC_PHONE2], LEN_PHONE2);
  phone2[LEN_PHONE2] = '\0';
  strncpy(dept, &buf[LOC_DEPT], LEN_DEPT);
  dept[LEN_DEPT] = '\0';
  strncpy(title, &buf[LOC_TITLE], LEN_TITLE);
  title[LEN_TITLE] = '\0';
  strncpy(username, &buf[LOC_USERNAME], LEN_USERNAME);
  username[LEN_USERNAME] = '\0';
  strncpy(host, &buf[LOC_HOST], LEN_HOST);
  host[LEN_HOST] = '\0';

  strcpy(sname, name);
  e.name = strtrim(sname);
  p = strchr(name, ',');
  if (p)
    *p = '\0';
  e.last = strtrim(name);
  if (p)
    {
      p++;
      while (isspace(*p))
	p++;
      e.first = p;
      if (p = strchr(e.first, ' '))
	{
	  *p = '\0';
	  e.first = strtrim(e.first);
	  e.middle = strtrim(p + 1);
	}
      else
	{
	  e.first = strtrim(e.first);
	  e.middle = "";
	}
    }
  else
    {
      e.first = "";
      e.middle = "";
    }
  ends_sr = ends_jr = ends_iii = ends_iv = ends_ii = ends_v = 0;
  LookForSt(e.last);
  LookForO(e.last);
  LookForJrAndIII(e.last, &ends_sr, &ends_jr, &ends_iii, &ends_iv,
		  &ends_ii, &ends_v);
  LookForJrAndIII(e.first, &ends_sr, &ends_jr, &ends_iii, &ends_iv,
		  &ends_ii, &ends_v);
  FixCase(e.last);
  FixCase(e.first);
  FixCase(e.middle);

  e.id = id;
  e.eid = eid;
  EncryptID(e.eid, e.id, e.first, e.last);

  e.address = strtrim(office);
  e.phone = strtrim(phone);
  e.phone2 = strtrim(phone2);
  e.dept = strtrim(dept);
  e.title = strtrim(title);

  e.class = "MITS";
  e.highid = 0;
  if (substr(e.title, "PROF") || substr(e.title, "LECTURE"))
    e.class = "FACULTY";
  if (!strcmp(e.dept, "LINCOLN LAB"))
    {
      e.class = "LINCOLN";
      e.highid = 1;
    }

  return &e;
}


process_entry(struct entry *e)
{
  int changed, nochange, encrypted;
  char buf[BUFSIZ], *from, *to;
  EXEC SQL BEGIN DECLARE SECTION;
  char *first, *last, *middle, *eid, *sid, *name, *title, *phone2, *rdept;
  char *rtitle, *raddr, *rhphone, *rophone, *prog;
  char class[9], oaddr[25], ophone[17], dept[128];
  char dfirst[17], dlast[17], dmiddle[17];
  int id, status, who;
  EXEC SQL END DECLARE SECTION;

  who = WHO;
  prog = PROG;
  first = e->first;
  if (strlen(first) > 16)
    first[16] = '\0';
  last = e->last;
  if (strlen(last) > 16)
    last[16] = '\0';
  middle = e->middle;
  eid = e->eid;
  sid = e->id;
  id = 0;
  encrypted = 0;

  /* Get user info */
  EXEC SQL SELECT users_id, first, last, middle, type, office_addr,
    office_phone, department, status
    INTO :id, :dfirst, :dlast, :dmiddle, :class, :oaddr,
    :ophone, :dept, :status
    FROM users
    WHERE clearid = :sid;
  if (sqlfail())
    {
      if (sqlca.sqlcode == SQL_DUPLICATE)
	{
	  com_err(whoami, 0, "duplicate ID number %s on user %s %s",
		  sid, first, last);
	  return;
	}
      else
	sqlexit();
    }
  if (id == 0)
    {
      EXEC SQL SELECT users_id, first, last, middle, type, office_addr,
	office_phone, department, status
	INTO :id, :dfirst, :dlast, :dmiddle, :class, :oaddr,
	:ophone, :dept, :status
	FROM users
	WHERE last = :last and first = :first and clearid = :eid;
      if (sqlfail() && sqlca.sqlcode != SQL_DUPLICATE)
	sqlexit();
      encrypted++;
      if (id == 0)
	{
	  newuser(e);
	  return;
	}
    }

  /* Update class/state if necessary.  (Exclude several spacial cases.) */
  if (strcmp(e->class, strtrim(class)) &&
      strcmp(class, "STAFF") && strcmp(class, "SIPBMEM") &&
      strcmp(class, "KNIGHT"))
    {
      com_err(whoami, 0, "updating class for %s %s from %s to %s",
	      first, last, class, e->class);
      if (status == US_NOT_ALLOWED)
	status = US_NO_LOGIN_YET;
      if (status == US_ENROLL_NOT_ALLOWED)
	status = US_ENROLLED;
      strcpy(class, e->class);
      EXEC SQL UPDATE users
	SET type = NVL(:class, CHR(0)), status = :status, modtime = SYSDATE,
	modby = :who, modwith = :prog
	WHERE users_id = :id;
      if (sqlca.sqlcode)
	{
	  dbmserr("updating user", sqlca.sqlcode);
	  exit(1);
	}
    }

  /* Update name if necessary */
  if (strcmp(first, strtrim(dfirst)) ||
      strcmp(last, strtrim(dlast)) ||
      strcmp(middle, strtrim(dmiddle)))
    {
      com_err(whoami, 0, "updating real name for %s %s", first, last);
      EXEC SQL UPDATE users
	SET first = NVL(:first, CHR(0)), last = NVL(:last, CHR(0)),
	middle = NVL(:middle, CHR(0)), modby = :who, modwith = :prog,
	modtime = SYSDATE
	WHERE users_id = :id;
      if (sqlca.sqlcode)
	{
	  dbmserr("updating name", sqlca.sqlcode);
	  exit(1);
	}
    }

  changed = nochange = 0;
  if (encrypted)
    changed++;
  strcpy(buf, e->address);
  while ((to = strchr(buf, ',')))
    *to = ';';
  while ((to = strchr(buf, ':')))
    *to = ';';
  if (newfinger)
    {
      if (oaddr[0] == ' ' && buf[0])
	{
	  strncpy(oaddr, buf, 16);
	  oaddr[16] = '\0';
	  changed++;
	}
      else if (strncmp(strtrim(oaddr), buf, 15))
	nochange++;
    }
  else
    {
      if (strncmp(strtrim(oaddr), buf, 15))
	changed++;
      strncpy(oaddr, buf, 16);
      oaddr[16] = '\0';
    }
  from = e->phone;
  to = buf;
  while (*from)
    {
      if (isdigit(*from))
	*to++ = *from;
      from++;
    }
  *to = '\0';
  if (newfinger)
    {
      if (ophone[0] == ' ')
	{
	  strncpy(ophone, buf, 16);
	  ophone[16] = '\0';
	}
      else if (strncmp(strtrim(ophone), buf, 11))
	nochange++;
    }
  else
    {
      if (strncmp(strtrim(ophone), buf, 11))
	changed++;
      strncpy(ophone, buf, 16);
      ophone[16] = '\0';
    }
  FixCase(e->dept);
  FixCase(e->title);
  if (newfinger)
    {
      if (dept[0] == ' ')
	{
	  strncpy(dept, e->dept, 12);
	  dept[12] = '\0';
	}
      else if (strncmp(strtrim(dept), e->dept, 11))
	nochange++;
    }
  else
    {
      if (strncmp(strtrim(dept), e->dept, 11))
	changed++;
      strncpy(dept, e->dept, 12);
      dept[12] = '\0';
    }
  sid = e->id;
  name = e->name;
  rdept = e->dept;
  rtitle = e->title;
  raddr = e->address;
  rhphone = e->phone;
  rophone = e->phone2;
  if (changed)
    {
      com_err(whoami, 0, "updating finger for %s %s", first, last);
      EXEC SQL UPDATE users
	SET office_addr = NVL(:oaddr, CHR(0)),
	office_phone = NVL(:ophone, CHR(0)), department = NVL(:dept, CHR(0)),
	fmodtime = SYSDATE, fmodby = :who, fmodwith = :prog,
	xname = NVL(:name, CHR(0)), xdept = NVL(:rdept, CHR(0)),
	xtitle = NVL(:rtitle, CHR(0)), xaddress = NVL(:raddr, CHR(0)),
	xphone1 = NVL(:rhphone, CHR(0)), xphone2 = NVL(:rophone, CHR(0)),
	xmodtime = SYSDATE, clearid = NVL(:sid, CHR(0))
	WHERE users_id = :id;
      if (sqlca.sqlcode)
	{
	  dbmserr(NULL, sqlca.sqlcode);
	  exit(1);
	}
    }
  else
    {
      EXEC SQL UPDATE users
	SET xname = NVL(:name, CHR(0)), xdept = NVL(:rdept, CHR(0)),
	xtitle = NVL(:rtitle, CHR(0)), xaddress = NVL(:raddr, CHR(0)),
	xphone1 = NVL(:rhphone, CHR(0)), xphone2 = NVL(:rophone, CHR(0)),
	xmodtime = SYSDATE, clearid = NVL(:sid, CHR(0))
	WHERE users_id = :id;
      if (sqlca.sqlcode)
	{
	  dbmserr(NULL, sqlca.sqlcode);
	  exit(1);
	}
    }
}


newuser(struct entry *e)
{
  char *from, *to;
  EXEC SQL BEGIN DECLARE SECTION;
  int id, uid, st, who;
  char *last, *first, *class, *middle, login[9], *sid, fullname[65], *prog;
  char oaddr[81], ophone[17], dept[128], *name, *title, phone2[17];
  char *rdept, *rhphone, *rophone;
  EXEC SQL END DECLARE SECTION;

  who = WHO;
  prog = PROG;
  strncpy(oaddr, e->address, 16);
  oaddr[16] = '\0';
  while ((to = strchr(oaddr, ',')))
    *to = ';';
  while ((to = strchr(oaddr, ':')))
    *to = ';';
  from = e->phone;
  to = ophone;
  while (*from)
    {
      if (isdigit(*from))
	*to++ = *from;
      from++;
    }
  *to = '\0';
  FixCase(e->dept);
  strncpy(dept, e->dept, 12);
  dept[12] = '\0';

  id = set_next_users_id(0);
  uid = set_next_uid(e->highid);
  sprintf(login, "#%d", uid);
  last = e->last;
  first = e->first;
  middle = e->middle;
  class = e->class;
  if (*middle)
    sprintf(fullname, "%s %s %s", first, middle, last);
  else
    sprintf(fullname, "%s %s", first, last);
  st = US_NO_LOGIN_YET;

  sid = e->id;
  name = e->name;
  rdept = e->dept;
  title = e->title;
  rhphone = e->phone;
  rophone = e->phone2;

  EXEC SQL INSERT INTO users
    (login, users_id, unix_uid, shell, last, first, middle, status,
     clearid, type, modtime, modby, modwith, fullname, office_addr,
     office_phone, department, fmodtime, fmodby, fmodwith,
     potype, xname, xdept, xtitle, xaddress, xphone1, xphone2, xmodtime)
    VALUES (:login, :id, :uid, '/bin/athena/tcsh',
	    NVL(:last, CHR(0)), NVL(:first, CHR(0)), NVL(:middle, CHR(0)),
	    :st, NVL(:sid, CHR(0)), NVL(:class, CHR(0)), SYSDATE, :who, :prog,
	    NVL(:fullname, CHR(0)), NVL(:oaddr, CHR(0)), NVL(:ophone, CHR(0)),
	    NVL(:dept, CHR(0)), SYSDATE, :who, :prog, 'NONE',
	    NVL(:name, CHR(0)), NVL(:rdept, CHR(0)), NVL(:title, CHR(0)),
	    NVL(:oaddr, CHR(0)), NVL(:rhphone, CHR(0)), NVL(:rophone, CHR(0)),
	    SYSDATE);
  if (sqlca.sqlcode)
    {
      dbmserr("adding user", sqlca.sqlcode);
      exit(1);
    }
  else
    com_err(whoami, 0, "adding user %s %s", e->first, e->last);
}


set_next_users_id(int limit)
{
  EXEC SQL BEGIN DECLARE SECTION;
  int rowcount, flag, value, retval;
  EXEC SQL END DECLARE SECTION;

  EXEC SQL SELECT value INTO :value FROM numvalues
    WHERE name = 'users_id';
  if (sqlfail())
    sqlexit();
  if (sqlca.sqlerrd[2] != 1)
    {
      EXEC SQL ROLLBACK;
      com_err(whoami, MR_INTERNAL, "values table inconsistancy");
      exit(1);
    }

  flag = 0;
  EXEC SQL SELECT users_id INTO :flag FROM users
    WHERE users_id = :value;
  if (sqlfail())
    sqlexit();
  if (sqlca.sqlerrd[2] == 0)
    flag = 0;
  while (flag)
    {
      value++;
      if (limit && value > MAX_ID_VALUE)
	value = MIN_ID_VALUE;
      flag = 0;
      EXEC SQL SELECT users_id INTO :flag FROM users
	WHERE users_id = :value;
      if (sqlfail())
	sqlexit();
      if (sqlca.sqlerrd[2] == 0)
	flag = 0;
    }

  retval = value++;
  if (limit && value > MAX_ID_VALUE)
    value = MIN_ID_VALUE;
  EXEC SQL UPDATE numvalues SET value = :value
    WHERE name = 'users_id';
  if (sqlca.sqlcode)
    {
      dbmserr("assigning ID", sqlca.sqlcode);
      exit(1);
    }
  return retval;
}

set_next_uid(int high)
{
  EXEC SQL BEGIN DECLARE SECTION;
  int rowcount, flag, value, retval;
  char *name;
  EXEC SQL END DECLARE SECTION;

  if (high)
    name = "high_uid";
  else
    name = "unix_uid";

  EXEC SQL SELECT value INTO :value FROM numvalues
    WHERE name = :name;
  if (sqlfail())
    sqlexit();
  if (sqlca.sqlerrd[2] != 1)
    {
      EXEC SQL ROLLBACK;
      com_err(whoami, MR_INTERNAL, "values table inconsistancy");
      exit(1);
    }

  flag = 0;
  EXEC SQL SELECT unix_uid INTO :flag FROM users WHERE unix_uid = :value;
  if (sqlfail())
    sqlexit();
  if (sqlca.sqlerrd[2] == 0)
    flag = 0;
  while (flag)
    {
      value++;
      if (!high && value > MAX_ID_VALUE)
	value = MIN_ID_VALUE;
      flag = 0;
      EXEC SQL SELECT unix_uid INTO :flag FROM users WHERE unix_uid = :value;
      if (sqlfail())
	sqlexit();
      if (sqlca.sqlerrd[2] == 0)
	flag = 0;
    }

  retval = value++;
  if (!high && value > MAX_ID_VALUE)
    value = MIN_ID_VALUE;
  EXEC SQL UPDATE numvalues SET value = :value WHERE name = :name;
  if (sqlca.sqlcode)
    {
      dbmserr("assigning ID", sqlca.sqlcode);
      exit(1);
    }
  return retval;
}


sqlexit(void)
{
  dbmserr(NULL, sqlca.sqlcode);
  EXEC SQL ROLLBACK WORK;
  exit(1);
}

dbmserr(char *where, int what)
{
  char err_msg[256];
  int bufsize = 256, msglength = 0;

  sqlglm(err_msg, &bufsize, &msglength);
  err_msg[msglength] = '\0';

  if (where)
    com_err(whoami, 0, "DBMS error %swhile %s", err_msg, where);
  else
    com_err(whoami, 0, "DBMS error %s", err_msg);
}