# NanoBlogger Calendar Plugin, requires the cal command.
# converts the output of cal to an HTML Table and creates links of entries
# used for last month's calendar table!
#
# sample code for template - based off default stylesheet
#
# <div class="calendar">
# $NB_Calendar_prev
# </div>

PLUGIN_OUTFILE="$BLOG_DIR/$PARTS_DIR/cal_prev.$NB_FILETYPE"
: ${CAL_CMD:=cal}

if $CAL_CMD > "$PLUGIN_OUTFILE" 2>&1 ; then
nb_msg "generating calendar (last month) ..."
[ -z "$DATE_LOCALE" ] || CALENDAR=`LC_ALL="$DATE_LOCALE" $CAL_CMD $CAL_ARGS_PREV`
[ ! -z "$CALENDAR" ] || CALENDAR=`$CAL_CMD $CAL_ARGS_PREV`
CAL_HEAD=`echo "$CALENDAR" |sed -e '/^[ ]*/ s///g; 1q'`
WEEK_DAYS=`echo "$CALENDAR" |sed -n 2p`
DAYS=`echo "$CALENDAR" |sed 1,2d`
NUM_DAY_LINES=`echo "$DAYS" |grep -n "[0-9]" |cut -c1`

curr_month=`date +%Y.%m --date "$(date +%Y-%m-15) 1 months ago"`
query_db all
set_baseurl "./"
MONTH_LIST=`echo "$DB_RESULTS" |sort $SORT_ARGS |grep ''$curr_month''`

echo '<table border="0" cellspacing="4" cellpadding="0" summary="Calendar with links to days with entries">' > "$PLUGIN_OUTFILE"
echo '<caption class="calendarhead">'$CAL_HEAD'</caption>' >> "$PLUGIN_OUTFILE"
echo '<tr>' >> "$PLUGIN_OUTFILE"
for wd in $WEEK_DAYS ; do
	echo '<th style="text-align: center;"><span class="calendarday">'$wd'</span></th>' >> "$PLUGIN_OUTFILE"
done
echo '</tr>' >> "$PLUGIN_OUTFILE"
for line in $NUM_DAY_LINES ; do
	DN_LINES=`echo "$DAYS" |sed -n "$line"p`
	[ -n "$DN_LINES" ] || continue
	echo '<tr>' >> "$PLUGIN_OUTFILE"
	echo "$DN_LINES" | sed -e '/  $/ Q; /  [ \t]/ s//<td style="text-align: center;"><\/td>\ /g; /[0-9]/ s///g' >> "$PLUGIN_OUTFILE"
	for dn in $DN_LINES ; do
		set_link=0
		MONTH_LINE=`echo "$MONTH_LIST" |grep $dn`
		for entry in $MONTH_LINE ; do
			entry_year=`echo $entry |cut -c1-4`
			entry_month=`echo $entry |cut -c6-7`
			entry_day=`echo $entry |cut -c9-10 |sed -e '/^0/ s///g'`
			curr_month=`date +%m --date "$(date +%Y-%m-15) 1 months ago"`
			curr_year=`date +%Y --date "$(date +%Y-%m-15) 1 months ago"`
		if [ "$curr_year$curr_month$dn" = "$entry_year$entry_month$entry_day" ] ; then
			set_link=1
			NB_EntryID=`set_entryid $entry`
			set_entrylink "$entry" altlink
			dn='<a href="'${ARCHIVES_PATH}$NB_EntryPermalink'">'$dn'</a>'
			echo '<td style="text-align: center;"><span class="calendar">'$dn'</span></td>' >> "$PLUGIN_OUTFILE"
		fi
		done
		if [ "$set_link" != 1 ] ; then
			echo '<td style="text-align: center;"><span class="calendar">'$dn'</span></td>' >> "$PLUGIN_OUTFILE"
		fi
	done
	echo "$DN_LINES" | sed -e '/^  / Q; /  [ \t]/ s//<td style="text-align: center;"><\/td>\ /g; /[0-9]/ s///g' >> "$PLUGIN_OUTFILE"
	echo '</tr>' >> "$PLUGIN_OUTFILE"
done
echo '</table>' >> "$PLUGIN_OUTFILE"

# The calendar's place-holder for the templates
NB_Calendar_prev=$(< "$PLUGIN_OUTFILE")
CALENDAR=
fi