/*
 * Copyright (c) 1991-1994  Sony Corporation
 *
 * Permission is hereby granted, free of charge, to any person obtaining
 * a copy of this software and associated documentation files (the
 * "Software"), to deal in the Software without restriction, including
 * without limitation the rights to use, copy, modify, merge, publish,
 * distribute, sublicense, and/or sell copies of the Software, and to
 * permit persons to whom the Software is furnished to do so, subject to
 * the following conditions:
 *
 * The above copyright notice and this permission notice shall be
 * included in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
 * IN NO EVENT SHALL SONY CORPORATION BE LIABLE FOR ANY CLAIM,
 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR
 * THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 *
 * Except as contained in this notice, the name of Sony Corporation
 * shall not be used in advertising or otherwise to promote the sale, use
 * or other dealings in this Software without prior written authorization
 * from Sony Corporation.
 *
 */

/*
 * $SonyRCSfile: getrank.c,v $
 * $SonyRevision: 1.1 $
 * $SonyDate: 1994/06/03 08:01:50 $
 */

#include "sj_kcnv.h"

#include "sj_kanakan.h"

static void setstynum(SJ4_CONTEXT2), setnspr(SJ4_CONTEXT KHREC*, STDYIN*), regetrank(SJ4_CONTEXT2);

void getrank(SJ4_CONTEXT2) {

	trank = nrank = 1;

	setstynum(SJ4_CONTEXT_PASS2);

	regetrank(SJ4_CONTEXT_PASS2);
}

static void
setstynum(SJ4_CONTEXT2) {
	KHREC*	kptr;
	STDYIN* sptr;
	int	count;

	for(kptr = kouhotbl, count = khcount; count--; kptr++) {

		sptr = srchstdy(SJ4_CONTEXT_PASS kptr->clrec->jnode->jseg, kptr->offs,
				kptr->clrec->jnode->dicid);

		if(!sptr) continue;

		setnspr(SJ4_CONTEXT_PASS kptr, sptr);
	}
}

static void
setnspr(SJ4_CONTEXT KHREC* kptr, STDYIN* sptr) {
	KHREC*	   ptr;
	int	   keepnm;
	TypeStyNum styno;

	styno = kptr->styno = sptr->styno;

	keepnm = trank;

	for(ptr = kouhotbl; ptr < kptr; ptr++) {

		if(styno < ptr->styno) {

			ptr->rank++;

			keepnm--;
		}

		else if(styno == ptr->styno) {

			if(kptr->sttfg && kptr->ka_fg) {

				if((sptr->sttkj == kptr->sttkj) &&
				   (sptr->ka_kj == kptr->ka_kj)) {
					ptr->rank++;
					keepnm--;
				}
			}

			else if(kptr->sttfg) {

				if(sptr->sttkj == kptr->sttkj) {
					ptr->rank++;
					keepnm--;
				}
			}

			else if(kptr->ka_fg) {

				if(sptr->ka_kj == kptr->ka_kj) {
					ptr->rank++;
					keepnm--;
				}
			}
		}
	}

	kptr->rank = (u_char)keepnm;
	trank++;

	if(keepnm <= nrank) nrank++;

	if(sptr->nmflg && (nrank > keepnm)) nrank = keepnm;
}

static void
regetrank(SJ4_CONTEXT2) {
	KHREC* kptr;
	int    count;
	int    tmp;

	if(nrank < trank) {

		tmp = nrank;

		trank += nkhcount;
	}

	else {
		nkhcount = tmp = 0;
	}

	for(count = khcount, kptr = kouhotbl; count--; kptr++) {

		if(!(kptr->rank)) {
			if(tmp && kptr->mode && !(kptr->offs)) {
				kptr->rank = (u_char)tmp++;
			}
		}

		else if((short)kptr->rank >= nrank)
			kptr->rank += (u_char)nkhcount;
	}

	while(1) {
		KHREC* best = NULL;

		for(count = khcount, kptr = kouhotbl; count--; kptr++) {
			if(kptr->rank != 0) continue;

			if(best == NULL || kptr->cost < best->cost) {
				best = kptr;
			}
		}

		if(best == NULL) break;

		best->rank = (u_char)trank++;
	}
}