/* ***** WTPPN.H -- Header for WTPPN.C ***** */

/* ===== CONSTANTS ===== */

#if defined(WIZTERM)
	#define PPN_FG	BLACK				/* foreground for PPN display */
	#define PPN_BG	LIGHTGRAY			/* background for PPN display */
#endif

#define PPNFILENAME "wtnotes.dat"
#define TMPFILENAME "wtnotes.tmp"
#define BAKFILENAME "wtnotes.bak"
#define FIXFILENAME	"wtnotes.fix"

#define NAME_LEN 	9					/* # of chars in user name			*/
#define UID_LEN1 	6					/* # of chars before comma in uid	*/
#define UID_LEN2	4					/* # of chars after comma in uid	*/
#define UID_LEN (UID_LEN1 + 1 + UID_LEN2)
#define CDATE_LEN	6                   /* length of "YYMMDD"				*/


/*********************/
/* ***** TYPES ***** */
/*********************/

typedef struct user {
    char uid[UID_LEN];
	char name[NAME_LEN];
    char mxlv;
    } t_user;

typedef char cdate[CDATE_LEN+1];

typedef int cmpfunc(const void *ptr1, const void *ptr2);

typedef struct ppnrec {
	t_user user;
    char date1[CDATE_LEN];
    char date2[CDATE_LEN];
    char crlf[2];
} t_ppnrec;
#define l_ppnrec (sizeof(t_ppnrec))


/**************************/
/* ***** PROTOTYPES ***** */
/**************************/

#if defined(WIZTERM)
    void ppn_exi(void);
    void ppn_init(void);
    void ppn_lookup(char *id);
    void ppn_position(int where);
#endif

int cmp_by_name(const void far *uitem1, const void far *uitem2);
int cmp_by_uids(const void far *uitem1, const void far *uitem2);

/********************************/
/* ***** COMMON FUNCTIONS ***** */
/********************************/

/*
**  It may seem strange to define coding in a header file, where
**	it could be in an OBJ to be shared by multiple programs.
**	But WizTerm and WizWho are routinely built in different
**	memory models, meaning that the OBJ could not be re-used
**	without re-compiling. Having the common code in a .H file
**	means the identical code will be included in all programs that
**	need it, with no memory model hassles.
*/

#if defined(PPNFUNC)
    /**********************************************************/
    /* cmp_by_name(): compare two t_user items by name first. */
    /* The result is -1, 0 or 1 and can be used in a switch   */
    /**********************************************************/
    int cmp_by_name(const void far *uitem1, const void far *uitem2) {

	    int dif;
        dif = strncmp(((t_user *) uitem1)->name,
	                  ((t_user *) uitem2)->name,
                      NAME_LEN);
	    if (!dif) {
            dif = strncmp(((t_user *) uitem1)->uid,
	                      ((t_user *) uitem2)->uid,
                          UID_LEN);
	    }
        if (dif < 0) return -1;
        if (dif > 0) return 1;
	    return 0;

    } /* end cmp_by_name() */


    /*********************************************************/
    /* cmp_by_uids(): compare two t_user items by UID first. */
    /* The result is -1, 0 or 1 and can be used in a switch  */
    /*********************************************************/
    int cmp_by_uids(const void far *uitem1, const void far *uitem2) {

	    int dif;
        dif = strncmp(((t_user *) uitem1)->uid,
	                  ((t_user *) uitem2)->uid,
                      UID_LEN);
	    if (!dif) {
            dif = strncmp(((t_user *) uitem1)->name,
	                      ((t_user *) uitem2)->name,
                          NAME_LEN);
	    }
        if (dif < 0) return -1;
        if (dif > 0) return 1;
	    return 0;

    } /* end cmp_by_uids() */

#endif /* defined(PPNFUNC) */

/* ***** EOF(WtPPN.H) ***** */