build.c

/* @(#)build.c	2.1.8.1 */
/* Sccsid:     @(#)build.c	9.1.1.17     11/15/95  12:52:28 */
/* stuff related to the customer table */
#include <stdio.h>
#include <string.h>
#ifdef SSBM
#include <time.h>
#endif
#ifndef VMS
#include <sys/types.h>
#endif
#if defined(SUN)
#include <unistd.h>
#endif

#if defined(LINUX)
#include <unistd.h>
#endif

#include <math.h>

#include "dss.h"
#include "dsstypes.h"
#include "bcd2.h"
#ifdef ADHOC
#include "adhoc.h"
extern adhoc_t adhocs[];
#endif /* ADHOC */

#define LEAP_ADJ(yr, mnth) \
	((LEAP(yr) && (mnth) >= 2) ? 1 : 0)
#define JDAY_BASE 8035		  /* start from 1/1/70 a la unix */
#define JMNTH_BASE (-70 * 12) /* start from 1/1/70 a la unix */
#define JDAY(date) ((date)-STARTDATE + JDAY_BASE + 1)
#define PART_SUPP_BRIDGE(tgt, p, s)                    \
	{                                                  \
		long tot_scnt = tdefs[SUPP].base * scale;      \
		tgt = (p + s * (tot_scnt / SUPP_PER_PART +     \
						(long)((p - 1) / tot_scnt))) % \
				  tot_scnt +                           \
			  1;                                       \
	}
#define RPRICE_BRIDGE(tgt, p) tgt = rpb_routine(p)
#define V_STR(avg, sd, tgt) a_rnd((int)(avg * V_STR_LOW), \
								  (int)(avg * V_STR_HGH), sd, tgt)
#define TEXT(avg, sd, tgt) \
	dbg_text(tgt, (int)(avg * V_STR_LOW), (int)(avg * V_STR_HGH), sd)
static void gen_phone PROTO((long ind, char *target, long seed));

#ifdef SSBM
static void gen_category PROTO((char *target, long seed));
int gen_city PROTO((char *cityName, char *nationName));
int gen_season PROTO((char *dest, int month, int day));
int is_last_day_in_month PROTO((int year, int month, int day));
int gen_holiday_fl PROTO((char *dest, int month, int day));
int gen_city PROTO((char *cityName, char *nationName));
int gen_color PROTO((char *source, char *dest));
#endif

long rpb_routine(long p)
{
	long price;
	price = 90000;
	price += (p / 10) % 20001; /* limit contribution to $200 */
	price += (p % 1000) * 100;

	return (price);
}

static void
gen_phone(long ind, char *target, long seed)
{
	long acode,
		exchg,
		number;

	RANDOM(acode, 100, 999, seed);
	RANDOM(exchg, 100, 999, seed);
	RANDOM(number, 1000, 9999, seed);
	sprintf(target, "%02d", 10 + (ind % NATIONS_MAX));
	sprintf(target + 3, "%03d", acode);
	sprintf(target + 7, "%03d", exchg);
	sprintf(target + 11, "%04d", number);
	target[2] = target[6] = target[10] = '-';
	return;
}

static void
gen_category(char *target, long seed)
{
	long num1, num2;
	RANDOM(num1, 1, 5, seed);
	RANDOM(num2, 1, 5, seed);
	strcpy(target, "MFGR");
	sprintf(target + 4, "%01d", num1);
	sprintf(target + 5, "%01d", num2);
	return;
}

#ifdef SSBM
long mk_cust(long n_cust, customer_t *c)
{
	long i;
	c->custkey = n_cust;
	sprintf(c->name, C_NAME_FMT, C_NAME_TAG, n_cust);
	c->alen = V_STR(C_ADDR_LEN, C_ADDR_SD, c->address);
	RANDOM(i, 0, nations.count - 1, C_NTRG_SD);
	strcpy(c->nation_name, nations.list[i].text);
	strcpy(c->region_name, regions.list[nations.list[i].weight].text);
	gen_city(c->city, c->nation_name);
	gen_phone(i, c->phone, (long)C_PHNE_SD);
	pick_str(&c_mseg_set, C_MSEG_SD, c->mktsegment);
	return (0);
}

#else
long mk_cust(long n_cust, customer_t *c)
{
	long i;

	c->custkey = n_cust;
	sprintf(c->name, C_NAME_FMT, C_NAME_TAG, n_cust);
	c->alen = V_STR(C_ADDR_LEN, C_ADDR_SD, c->address);
	RANDOM(i, 0, (nations.count - 1), C_NTRG_SD);
	c->nation_code = i;
	gen_phone(i, c->phone, (long)C_PHNE_SD);
	RANDOM(c->acctbal, C_ABAL_MIN, C_ABAL_MAX, C_ABAL_SD);
	pick_str(&c_mseg_set, C_MSEG_SD, c->mktsegment);
	c->clen = TEXT(C_CMNT_LEN, C_CMNT_SD, c->comment);

	return (0);
}
#endif

/*
	* generate the numbered order and its associated lineitems
*/
void mk_sparse(long i, DSS_HUGE *ok, long seq)
{
#ifndef SUPPORT_64BITS
	if (scale < MAX_32B_SCALE)
#endif
		ez_sparse(i, ok, seq);
#ifndef SUPPORT_64BITS
	else
		hd_sparse(i, ok, seq);
#endif
	return;
}

/*
	* the "simple" version of mk_sparse, used on systems with 64b support
	* and on all systems at SF <= 300G where 32b support is sufficient
*/
void ez_sparse(long i, DSS_HUGE *ok, long seq)
{
	long low_bits;

	LONG2HUGE(i, ok);
	low_bits = (long)(i & ((1 << SPARSE_KEEP) - 1));
	*ok = *ok >> SPARSE_KEEP;
	*ok = *ok << SPARSE_BITS;
	*ok += seq;
	*ok = *ok << SPARSE_KEEP;
	*ok += low_bits;

	return;
}

#ifndef SUPPORT_64BITS
void hd_sparse(long i, DSS_HUGE *ok, long seq)
{
	long low_mask, seq_mask;
	static int init = 0;
	static DSS_HUGE *base, *res;

	if (init == 0)
	{
		INIT_HUGE(base);
		INIT_HUGE(res);
		init = 1;
	}

	low_mask = (1 << SPARSE_KEEP) - 1;
	seq_mask = (1 << SPARSE_BITS) - 1;
	bin_bcd2(i, base, base + 1);
	HUGE_SET(base, res);
	HUGE_DIV(res, 1 << SPARSE_KEEP);
	HUGE_MUL(res, 1 << SPARSE_BITS);
	HUGE_ADD(res, seq, res);
	HUGE_MUL(res, 1 << SPARSE_KEEP);
	HUGE_ADD(res, *base & low_mask, res);
	bcd2_bin(&low_mask, *res);
	bcd2_bin(&seq_mask, *(res + 1));
	*ok = low_mask;
	*(ok + 1) = seq_mask;
	return;
}
#endif

#ifdef SSBM
long mk_order(long index, order_t *o, long upd_num)
{
	long lcnt;
	long rprice;
	long ocnt;
	long tmp_date;
	long c_date;
	long clk_num;
	long supp_num;
	static char **asc_date = NULL;
	char tmp_str[2];
	char **mk_ascdate PROTO((void));
	int delta = 1;

	if (asc_date == NULL)
		asc_date = mk_ascdate();

	RANDOM(tmp_date, O_ODATE_MIN, O_ODATE_MAX, O_ODATE_SD);
	strcpy(o->odate, asc_date[tmp_date - STARTDATE]);

	mk_sparse(index, o->okey,
			  (upd_num == 0) ? 0 : 1 + upd_num / (10000 / refresh));
	RANDOM(o->custkey, O_CKEY_MIN, O_CKEY_MAX, O_CKEY_SD);
	while (o->custkey % CUST_MORTALITY == 0)
	{
		o->custkey += delta;
		o->custkey = MIN(o->custkey, O_CKEY_MAX);
		delta *= -1;
	}
	pick_str(&o_priority_set, O_PRIO_SD, o->opriority);
	RANDOM(clk_num, 1, MAX((scale * O_CLRK_SCL), O_CLRK_SCL), O_CLRK_SD);
	o->spriority = 0;

	o->totalprice = 0;
	ocnt = 0;

	RANDOM(o->lines, O_LCNT_MIN, O_LCNT_MAX, O_LCNT_SD);
	for (lcnt = 0; lcnt < o->lines; lcnt++)
	{

		HUGE_SET(o->okey, o->lineorders[lcnt].okey);
		o->lineorders[lcnt].linenumber = lcnt + 1;
		o->lineorders[lcnt].custkey = o->custkey;
		RANDOM(o->lineorders[lcnt].partkey, L_PKEY_MIN, L_PKEY_MAX, L_PKEY_SD);
		RANDOM(o->lineorders[lcnt].suppkey, L_SKEY_MIN, L_SKEY_MAX, L_SKEY_SD);

		RANDOM(o->lineorders[lcnt].quantity, L_QTY_MIN, L_QTY_MAX, L_QTY_SD);
		RANDOM(o->lineorders[lcnt].discount, L_DCNT_MIN, L_DCNT_MAX, L_DCNT_SD);
		RANDOM(o->lineorders[lcnt].tax, L_TAX_MIN, L_TAX_MAX, L_TAX_SD);

		strcpy(o->lineorders[lcnt].orderdate, o->odate);

		strcpy(o->lineorders[lcnt].opriority, o->opriority);
		o->lineorders[lcnt].ship_priority = o->spriority;

		RANDOM(c_date, L_CDTE_MIN, L_CDTE_MAX, L_CDTE_SD);
		c_date += tmp_date;
		strcpy(o->lineorders[lcnt].commit_date, asc_date[c_date - STARTDATE]);

		pick_str(&l_smode_set, L_SMODE_SD, o->lineorders[lcnt].shipmode);

		RPRICE_BRIDGE(rprice, o->lineorders[lcnt].partkey);
		o->lineorders[lcnt].extended_price = rprice * o->lineorders[lcnt].quantity;
		o->lineorders[lcnt].revenue = o->lineorders[lcnt].extended_price * ((long)100 - o->lineorders[lcnt].discount) / (long)PENNIES;

		//round off problem with linux if use 0.6
		o->lineorders[lcnt].supp_cost = 6 * rprice / 10;

		o->totalprice +=
			((o->lineorders[lcnt].extended_price *
			  ((long)100 - o->lineorders[lcnt].discount)) /
			 (long)PENNIES) *
			((long)100 + o->lineorders[lcnt].tax) / (long)PENNIES;
	}

	for (lcnt = 0; lcnt < o->lines; lcnt++)
	{
		o->lineorders[lcnt].order_totalprice = o->totalprice;
	}
	return (0);
}
#else
long mk_order(long index, order_t *o, long upd_num)
{
	long lcnt;
	long rprice;
	long ocnt;
	long tmp_date;
	long s_date;
	long r_date;
	long c_date;
	long clk_num;
	long supp_num;
	static char **asc_date = NULL;
	char tmp_str[2];
	char **mk_ascdate PROTO((void));
	int delta = 1;

	if (asc_date == NULL)
		asc_date = mk_ascdate();
	mk_sparse(index, o->okey,
			  (upd_num == 0) ? 0 : 1 + upd_num / (10000 / refresh));
	RANDOM(o->custkey, O_CKEY_MIN, O_CKEY_MAX, O_CKEY_SD);
	while (o->custkey % CUST_MORTALITY == 0)
	{
		o->custkey += delta;
		o->custkey = MIN(o->custkey, O_CKEY_MAX);
		delta *= -1;
	}

	RANDOM(tmp_date, O_ODATE_MIN, O_ODATE_MAX, O_ODATE_SD);
	strcpy(o->odate, asc_date[tmp_date - STARTDATE]);

	pick_str(&o_priority_set, O_PRIO_SD, o->opriority);
	RANDOM(clk_num, 1, MAX((scale * O_CLRK_SCL), O_CLRK_SCL), O_CLRK_SD);
	sprintf(o->clerk, O_CLRK_FMT,
			O_CLRK_TAG,
			clk_num);
	o->clen = TEXT(O_CMNT_LEN, O_CMNT_SD, o->comment);
#ifdef DEBUG
	if (o->clen > O_CMNT_MAX)
		fprintf(stderr, "comment error: O%d\n", index);
#endif /* DEBUG */
	o->spriority = 0;

	o->totalprice = 0;
	o->orderstatus = 'O';
	ocnt = 0;

	RANDOM(o->lines, O_LCNT_MIN, O_LCNT_MAX, O_LCNT_SD);
	for (lcnt = 0; lcnt < o->lines; lcnt++)
	{
		HUGE_SET(o->okey, o->l[lcnt].okey);
		o->l[lcnt].lcnt = lcnt + 1;
		RANDOM(o->l[lcnt].quantity, L_QTY_MIN, L_QTY_MAX, L_QTY_SD);
		RANDOM(o->l[lcnt].discount, L_DCNT_MIN, L_DCNT_MAX, L_DCNT_SD);
		RANDOM(o->l[lcnt].tax, L_TAX_MIN, L_TAX_MAX, L_TAX_SD);
		pick_str(&l_instruct_set, L_SHIP_SD, o->l[lcnt].shipinstruct);
		pick_str(&l_smode_set, L_SMODE_SD, o->l[lcnt].shipmode);
		o->l[lcnt].clen = TEXT(L_CMNT_LEN, L_CMNT_SD, o->l[lcnt].comment);
		RANDOM(o->l[lcnt].partkey, L_PKEY_MIN, L_PKEY_MAX, L_PKEY_SD);
		RPRICE_BRIDGE(rprice, o->l[lcnt].partkey);
		RANDOM(supp_num, 0, 3, L_SKEY_SD);
		PART_SUPP_BRIDGE(o->l[lcnt].suppkey, o->l[lcnt].partkey, supp_num);
		o->l[lcnt].eprice = rprice * o->l[lcnt].quantity;

		o->totalprice +=
			((o->l[lcnt].eprice *
			  ((long)100 - o->l[lcnt].discount)) /
			 (long)PENNIES) *
			((long)100 + o->l[lcnt].tax) / (long)PENNIES;

		RANDOM(s_date, L_SDTE_MIN, L_SDTE_MAX, L_SDTE_SD);
		s_date += tmp_date;
		RANDOM(c_date, L_CDTE_MIN, L_CDTE_MAX, L_CDTE_SD);
		c_date += tmp_date;
		RANDOM(r_date, L_RDTE_MIN, L_RDTE_MAX, L_RDTE_SD);
		r_date += s_date;

		strcpy(o->l[lcnt].sdate, asc_date[s_date - STARTDATE]);
		strcpy(o->l[lcnt].cdate, asc_date[c_date - STARTDATE]);
		strcpy(o->l[lcnt].rdate, asc_date[r_date - STARTDATE]);

		if (julian(r_date) <= CURRENTDATE)
		{
			pick_str(&l_rflag_set, L_RFLG_SD, tmp_str);
			o->l[lcnt].rflag[0] = *tmp_str;
		}
		else
			o->l[lcnt].rflag[0] = 'N';

		if (julian(s_date) <= CURRENTDATE)
		{
			ocnt++;
			o->l[lcnt].lstatus[0] = 'F';
		}
		else
			o->l[lcnt].lstatus[0] = 'O';
	}

	if (ocnt > 0)
		o->orderstatus = 'P';
	if (ocnt == o->lines)
		o->orderstatus = 'F';

	return (0);
}
#endif

#ifdef SSBM
long mk_part(long index, part_t *p)
{
	long mfgr, cat, brnd;

	p->partkey = index;

	agg_str(&colors, (long)P_NAME_SCL, (long)P_NAME_SD, p->name);

	/*extract color from substring of p->name*/
	p->clen = gen_color(p->name, p->color);

	RANDOM(mfgr, P_MFG_MIN, P_MFG_MAX, P_MFG_SD);
	sprintf(p->mfgr, "%s%d", "MFGR#", mfgr);

	RANDOM(cat, P_CAT_MIN, P_CAT_MAX, P_CAT_SD);
	sprintf(p->category, "%s%d", p->mfgr, cat);

	RANDOM(brnd, P_BRND_MIN, P_BRND_MAX, P_BRND_SD);
	sprintf(p->brand, "%s%d", p->category, brnd);

	p->tlen = pick_str(&p_types_set, P_TYPE_SD, p->type);
	p->tlen = strlen(p_types_set.list[p->tlen].text);
	RANDOM(p->size, P_SIZE_MIN, P_SIZE_MAX, P_SIZE_SD);

	pick_str(&p_cntr_set, P_CNTR_SD, p->container);

	return (0);
}
#else
long mk_part(long index, part_t *p)
{
	long temp;
	long snum;
	long brnd;

	p->partkey = index;
	agg_str(&colors, (long)P_NAME_SCL, (long)P_NAME_SD, p->name);
	RANDOM(temp, P_MFG_MIN, P_MFG_MAX, P_MFG_SD);
	sprintf(p->mfgr, P_MFG_FMT, P_MFG_TAG, temp);
	RANDOM(brnd, P_BRND_MIN, P_BRND_MAX, P_BRND_SD);
	sprintf(p->brand, P_BRND_FMT,
			P_BRND_TAG,
			(temp * 10 + brnd));
	p->tlen = pick_str(&p_types_set, P_TYPE_SD, p->type);
	p->tlen = strlen(p_types_set.list[p->tlen].text);
	RANDOM(p->size, P_SIZE_MIN, P_SIZE_MAX, P_SIZE_SD);
	pick_str(&p_cntr_set, P_CNTR_SD, p->container);
	RPRICE_BRIDGE(p->retailprice, index);
	p->clen = TEXT(P_CMNT_LEN, P_CMNT_SD, p->comment);

	for (snum = 0; snum < SUPP_PER_PART; snum++)
	{
		p->s[snum].partkey = p->partkey;
		PART_SUPP_BRIDGE(p->s[snum].suppkey, index, snum);
		RANDOM(p->s[snum].qty, PS_QTY_MIN, PS_QTY_MAX, PS_QTY_SD);
		RANDOM(p->s[snum].scost, PS_SCST_MIN, PS_SCST_MAX, PS_SCST_SD);
		p->s[snum].clen = TEXT(PS_CMNT_LEN, PS_CMNT_SD, p->s[snum].comment);
	}
	return (0);
}
#endif

#ifdef SSBM
long mk_supp(long index, supplier_t *s)
{
	long i,
		bad_press,
		noise,
		offset,
		type;
	s->suppkey = index;
	sprintf(s->name, S_NAME_FMT, S_NAME_TAG, index);
	s->alen = V_STR(S_ADDR_LEN, S_ADDR_SD, s->address);
	RANDOM(i, 0, nations.count - 1, S_NTRG_SD);
	strcpy(s->nation_name, nations.list[i].text);
	strcpy(s->region_name, regions.list[nations.list[i].weight].text);
	gen_city(s->city, s->nation_name);
	gen_phone(i, s->phone, (long)C_PHNE_SD);
	return (0);
}
#else
long mk_supp(long index, supplier_t *s)
{
	long i,
		bad_press,
		noise,
		offset,
		type;

	s->suppkey = index;
	sprintf(s->name, S_NAME_FMT, S_NAME_TAG, index);
	s->alen = V_STR(S_ADDR_LEN, S_ADDR_SD, s->address);
	RANDOM(i, 0, nations.count - 1, S_NTRG_SD);
	s->nation_code = i;
	gen_phone(i, s->phone, S_PHNE_SD);
	RANDOM(s->acctbal, S_ABAL_MIN, S_ABAL_MAX, S_ABAL_SD);

	s->clen = TEXT(S_CMNT_LEN, S_CMNT_SD, s->comment);
	/* these calls should really move inside the if stmt below, 
	* but this will simplify seedless parallel load 
	*/
	RANDOM(bad_press, 1, 10000, BBB_CMNT_SD);
	RANDOM(type, 0, 100, BBB_TYPE_SD);
	RANDOM(noise, 0, (s->clen - BBB_CMNT_LEN), BBB_JNK_SD);
	RANDOM(offset, 0, (s->clen - (BBB_CMNT_LEN + noise)),
		   BBB_OFFSET_SD);
	if (bad_press <= S_CMNT_BBB)
	{
		type = (type < BBB_DEADBEATS) ? 0 : 1;
		memcpy(s->comment + offset, BBB_BASE, BBB_BASE_LEN);
		if (type == 0)
			memcpy(s->comment + BBB_BASE_LEN + offset + noise,
				   BBB_COMPLAIN, BBB_TYPE_LEN);
		else
			memcpy(s->comment + BBB_BASE_LEN + offset + noise,
				   BBB_COMMEND, BBB_TYPE_LEN);
	}

	return (0);
}
#endif

struct
{
	char *mdes;
	long days;
	long dcnt;
} months[] =

	{
		{NULL, 0, 0},
		{"JAN", 31, 31},
		{"FEB", 28, 59},
		{"MAR", 31, 90},
		{"APR", 30, 120},
		{"MAY", 31, 151},
		{"JUN", 30, 181},
		{"JUL", 31, 212},
		{"AUG", 31, 243},
		{"SEP", 30, 273},
		{"OCT", 31, 304},
		{"NOV", 30, 334},
		{"DEC", 31, 365}};

long mk_time(long index, dss_time_t *t)
{
	long m = 0;
	long y;
	long d;

	t->timekey = index + JDAY_BASE;
	y = julian(index + STARTDATE - 1) / 1000;
	d = julian(index + STARTDATE - 1) % 1000;
	while (d > months[m].dcnt + LEAP_ADJ(y, m))
		m++;
	PR_DATE(t->alpha, y, m,
			d - months[m - 1].dcnt - ((LEAP(y) && m > 2) ? 1 : 0));
	t->year = 1900 + y;
	t->month = m + 12 * y + JMNTH_BASE;
	t->week = (d + T_START_DAY - 1) / 7 + 1;
	t->day = d - months[m - 1].dcnt - LEAP_ADJ(y, m - 1);

	return (0);
}

int mk_nation(long index, code_t *c)
{
	c->code = index - 1;
	c->text = nations.list[index - 1].text;
	c->join = nations.list[index - 1].weight;
	c->clen = TEXT(N_CMNT_LEN, N_CMNT_SD, c->comment);
	return (0);
}

int mk_region(long index, code_t *c)
{

	c->code = index - 1;
	c->text = regions.list[index - 1].text;
	c->join = 0; /* for completeness */
	c->clen = TEXT(R_CMNT_LEN, R_CMNT_SD, c->comment);
	return (0);
}

#ifdef SSBM
/*bug!*/
int gen_city(char *cityName, char *nationName)
{
	int i = 0;
	long randomPick;
	int clen = strlen(cityName);
	int nlen = strlen(nationName);

	strncpy(cityName, nationName, CITY_FIX - 1);

	if (nlen < CITY_FIX - 1)
	{
		for (i = nlen; i < CITY_FIX - 1; i++)
			cityName[i] = ' ';
	}
	RANDOM(randomPick, 0, 9, 98);

	sprintf(cityName + CITY_FIX - 1, "%d", randomPick);
	cityName[CITY_FIX] = '\0';
	return 0;
}

/*
P_NAME is as long as 55 bytes in TPC-H, which is un�reasonably large. 
We reduce it to 22 by limiting to a concatena�tion of two colors (see [TPC-H], pg 94). 
We also add a new column named P_COLOR that could be used in queries where currently a 
color must be chosen by substring from P_NAME.
*/
int gen_color(char *source, char *dest)
{
	int i = 0, j = 0;
	int clen = 0;

	while (source[i] != ' ')
	{
		dest[i] = source[i];
		i++;
	}
	dest[i] = '\0';

	i++;
	while (source[i] != '\0')
	{
		source[j] = source[i];
		j++;
		i++;
	}

	source[j] = '\0';

	clen = strlen(dest);
	return clen;
}

/*Following functions are related to date table generation*/
int days_in_a_month[12] = {31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
int days_in_a_month_l[12] = {31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
season seasons[] = {
	{"Christmas", 1, 11, 31, 12},
	{"Summer", 1, 5, 31, 8},
	{"Winter", 1, 1, 31, 3},
	{"Spring", 1, 4, 30, 4},
	{"Fall", 1, 9, 31, 10}};
holiday holidays[] = {
	{"Christmas", 12, 24},
	{"New Years Day", 1, 1},
	{"holiday1", 2, 20},
	{"Easter Day", 4, 20},
	{"holiday2", 5, 20},
	{"holiday3", 7, 20},
	{"holiday4", 8, 20},
	{"holiday5", 9, 20},
	{"holiday6", 10, 20},
	{"holiday7", 11, 20}};

char *month_names[] = {"January", "February", "March", "April",
					   "May", "June", "July", "Augest",
					   "September", "Octorber", "November", "December"};

char *weekday_names[] = {"Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"};

/*make the date table, it takes the continuous index , and add index*60*60*24 to 
 *numeric representation 1/1/1992 01:01:01, 
 *then convert the final numeric date time to tm structure, and thus extract other field
 *for date_t structure */
long mk_date(long index, date_t *d)
{
	long espan = (index - 1) * 60 * 60 * 24;

	time_t numDateTime = D_STARTDATE + espan;

	struct tm *localTime = localtime(&numDateTime);

	/*make Sunday be the first day of a week */
	d->daynuminweek = ((long)localTime->tm_wday + 1) % 7 + 1;
	d->monthnuminyear = (long)localTime->tm_mon + 1;
	strncpy(d->dayofweek, weekday_names[d->daynuminweek - 1], D_DAYWEEK_LEN + 1);
	strncpy(d->month, month_names[d->monthnuminyear - 1], D_MONTH_LEN + 1);
	d->year = (long)localTime->tm_year + 1900;
	d->daynuminmonth = (long)localTime->tm_mday;
	d->yearmonthnum = d->year * 100 + d->monthnuminyear;

	sprintf(d->yearmonth, "%.3s%d", d->month, d->year);
	sprintf(d->date, "%s %d, %d", d->month, d->daynuminmonth, d->year);

	d->datekey = d->year * 10000 + d->monthnuminyear * 100 + d->daynuminmonth;

	d->daynuminyear = (int)localTime->tm_yday + 1;
	d->weeknuminyear = d->daynuminyear / 7 + 1;

	if (d->daynuminweek == 7)
	{
		d->lastdayinweekfl[0] = '1';
	}
	else
	{
		d->lastdayinweekfl[0] = '0';
	}
	d->lastdayinweekfl[1] = '\0';

	if (is_last_day_in_month(d->year, d->monthnuminyear, d->daynuminmonth) == 1)
	{
		d->lastdayinmonthfl[0] = '0';
	}
	else
	{
		d->lastdayinmonthfl[0] = '1';
	}
	d->lastdayinmonthfl[1] = '\0';

	if (d->daynuminweek != 1 && d->daynuminweek != 7)
	{
		d->weekdayfl[0] = '1';
	}
	else
	{
		d->weekdayfl[0] = '0';
	}

	d->weekdayfl[1] = '\0';

	gen_season(d->sellingseason, d->monthnuminyear, d->daynuminmonth);
	d->slen = strlen(d->sellingseason);
	gen_holiday_fl(d->holidayfl, d->monthnuminyear, d->daynuminmonth);
	return (0);
}

int gen_holiday_fl(char *dest, int month, int day)
{
	int i;
	for (i = 0; i < NUM_HOLIDAYS; i++)
	{
		if (holidays[i].month == month && holidays[i].day == day)
		{
			strcpy(dest, "1");
			return 0;
		}
	}
	strcpy(dest, "0");
	return 0;
}

int is_last_day_in_month(int year, int month, int day)
{
	int *days;
	if (LEAP(year))
		days = days_in_a_month_l;
	else
		days = days_in_a_month;
	if (day == days[month - 1])
		return 1;
	return 0;
}

int gen_season(char *dest, int month, int day)
{
	int i;
	for (i = 0; i < NUM_SEASONS; i++)
	{
		season *seas;
		seas = &seasons[i];

		if (month >= seas->start_month && month <= seas->end_month &&
			day >= seas->start_day && day <= seas->end_day)
		{
			strcpy(dest, seas->name);
			return 0;
		}
	}
	strcpy(dest, "");

	return 0;
}

#endif