#!/bin/bash

# Title......: files
# Description: create index.html for files
# Author.....: Mitchell Johnston - uid 0
# Contact....: mitch@crn.hopto.org
# Updated....: Sat 17 Feb 2024 12:56:21 AM CST
#----------------------------------


# Sections: Changes variables functions setup main
# use '#' in vi/vim to jump to word under cursor

: ' Changes
Sat Feb 10 2024 Added version() to display version and changes
Sun Feb 04 2024 Cleaned up a little on the News section with single test
Fri Jan 26 2024 Code clean up and new debug settings
Thu Dec 21 2023 Added creation of include.html for use with iframes
Sun Oct 15 2023 Added tech news to news bottom of news page
'

# variables
#----------------------------------
[ "$1" == "-D" ] && DEBUG=1 && shift 1     # -D to turn on debug mode
[ "$DEBUG" == 1 ] && echo "---Variables---" && set -x 
INCLUDE=/var/www/include                  # location of my html headers and footer
BASE=/var/www
PDIR="$(cd ..;basename $PWD)"
DIR="$(basename $PWD)"
NAME=${0##*/}                       # name of the script
PDOCOPT="--from=markdown+emoji+lists_without_preceding_blankline+autolink_bare_uris"
[[ $(pwd) == *"$(date +%a|tr [A-Z] [a-z])"* ]] && LOC="NEWS"

if [ -f .conf ]                    # check for local config file for settings
then
	source .conf
else                               # default values
	HEADER="$INCLUDE/media_header.html"
	FOOTER="$INCLUDE/footer.html"
    TITLE="$(echo ${PDIR}/${DIR}|cut -d'.' -f1|tr '-' ' '|sed -e 's/.*/\L&/' -e 's/[a-z]*/\u&/g')"
	SORT="-t"
	BACKGROUND=""
fi
[ "$#" -gt 0 ] && OPTIONS="$*"      # if OPTIONS is set in .conf, it will use them as long as none are passed
[ "$DEBUG" == 1 ] && set +x && read -p "${N}-Continue-" -n 1 x

# functions
#----------------------------------

bl(){ ## write a blank line
	# Use: bl
	[ "$DEBUG" == "1" ] && set -x
    echo "" 
}

html(){ ## mark up code
    vim -f +"syn on" +"colorscheme gruvbox" +"set nonu" +"set foldenable!" +"set nospell" +"run! syntax/2html.vim" +"wq" +"q" $1
}

log(){ ## creates a basic log entry $LOG must be defined
	# Use: log {entry}  
	[ "$DEBUG" == "1" ] && set -x
	logger -i -t "Files" "$*"
}

pause(){ ## simple pause routine
	# Use: pause  {optional number of seconds} or "-nt" for no time out 
	[ "$DEBUG" == "1" ] && set -x
	[ "$1" == "-nt" ] && TMOUT="" && shift
    echo "$BY";
    if [ $# -gt 0 ]
	then
		read -t $1 -r -p "${C}Hit any key (${BY}$1${C} second timeout)${N}" -n 1 FOO;
    else
		read -r -p "${C}Hit any key${N}" -n 1 FOO;
    fi;
    bl
}

xtitle(){ ## set window title
	# Use: xtitle "Text to display"
    printf "\033]0;%s\007" "$*"
}

version(){ ## display version and change history
    grep -E '^# Updated' $0
    bl
    sed -n "/' Changes/,/^ *$/p" <$0 |grep  -E -v 'sed -n|exit 0|}'
    exit 0
}

compile(){ ## Compile

if [ "$LOC" == "NEWS" ] # Add Oped if any mp4 are here
then
    [ "$(ls | grep -c mp4)" -gt 0 ] && rss2md -o >>index.md
    bl >>index.md
fi

## tail end
if [ -f tail.md ] # Add if here, else do a random quote!
then
	bl >>index.md
	cat tail.md >>index.md
	bl >>index.md
fi

if [ "$LOC" == "NEWS" ] # Add tech news to bottom
then
    rss2md -t >>"index.md"
    bl >>index.md
fi
if [ $(basename $PWD) != "gif-files" ]
then
bl >>index.md
echo ":scroll:">>index.md
echo "$(quote -w)" >>index.md
bl >>index.md
fi

CURRENT=$(pwd)
if [ $(basename $PWD) != "gif-files" ] 
then
    echo "[🔝](#)" >>index.md
    echo "<hr>" >>index.md
    bl >>index.md
fi
echo "Updated:  $(date)">>index.md
pandoc "$PDOCOPT" "index.md" -o $$.html   # convert markdown to html
cp $$.html include.html        # used in iframes, no menus
cat "$HEADER" >"index.html"    # create new html file with header
cat $$.html >>"index.html"     # add new content
cat "$FOOTER" >>"index.html"   # add footer
rm $$.html                     # clean up
log "Processed: $PWD"          # update system log
exit                           # script ends after a compile
}

# setup
#----------------------------------

# this provides a quick way to edit all my scripts on the fly
if [ "$1" == "-E" ]
then
	vim $0
	sed -i -e "7s/.*/# Updated....: $(date)/" $0
    html $0
    cp $0 /var/www/unix
    mv $0.html /var/www/unix
    cp $0 /var/gopher/scripts
	exit
fi

# display help if needed
if [ "$1" == "-h" ] || [ "$1" == "--help" ]
then
fmt -s -w $(tput cols) <<END  # formats out to display width 
$NAME -conf

Generate an index.html file from all files in a directory.

-conf {name}# display default .conf format or $INCLUDE/{file}
-c          # Check the files in current directory for links in $BASE Markdown files
-d          # directories only, skip files
-f          # files only, skip directories
-l          # List all header files in $INCLUDE
-L          # List all conf files in $INCLUDE
-r          # Recurse into subdirectories (will automaticly do it if missing index.html)

.bold       # Any file listed in this file will be bold, and italic.
.conf       # Settings for: HTML header (menu), footer, title, and sorting.
.desc       # one line description of directory used if set in parent listing
header.md   # If found it will parse the markdown into the index.html at top.
head.md     # If found it will parse the markdown into the index.html at top after header.
tail.md     # If found it will parse the markdown into the index.html at bottom.

Note: "-d" or "-f" will have not impact on the header.md or tail.md, if you do not want them they must be removed. 

## Conf file format
$($0 -conf)

END
exit
fi

# display version and change history
if [ "$1" == "-v" ] || [ "$1" == "--version" ]
then
    version
fi


# listing of required apps
#--------------------------- 
command -v bash >/dev/null || sudo apt install bash -qyy
#command -v site >/dev/null || exit 1 
command -v pandoc >/dev/null || sudo apt install pandoc -yyq

# create .conf file
#--------------------------- 
if [[ "$1" == "-conf" ]] && [[ -f "$INCLUDE/$2" ]]
then
	cat "$INCLUDE/$2"
	exit
fi

if [ "$1" == "-conf" ]
then
echo '
# Sort options:
#   extension: -X
#   time: -t
#   reverse: -r
#   size: -S
#--------------------------------------
HEADER="$INCLUDE/media_header.html"   # list headers choices: files -l
FOOTER="$INCLUDE/footer.html"
TITLE="CRN/something" # page title
SORT=""
BACKGROUND=""         # image for background of HTML (will override header setting)
OPTIONS=""            # set default options
'
exit
fi

# file check
#--------------------------- 
if [ "$1" == "-c" ]
then
	for FILE in $(ls|egrep -v 'index|header|tail') # skip matching files
	do    
		[ -d $FILE ] && continue  # ignore directories
		cd "$BASE"
		for SOURCE in $(find . -name '*.md' -print|egrep -v "$DIR|version")
		do
			if [ $(grep -c "$FILE $SOURCE")  -gt 0 ]
			then
				echo "$FILE: $SOURCE $(grep -c $FILE $SOURCE)"
			fi
		done
		cd - >/dev/null
	done
	exit
fi

# list headers
#--------------------------- 
# if you want a copy of the ones I use, email me.
if [ "$1" == "-l" ]
then
	cd $INCLUDE
	ls ${SORT} *header*
	cd - >/dev/null
	exit
fi

# list conf files
#--------------------------- 
# if you was a copy of the ones I use, email me.
if [ "$1" == "-L" ]
then
	cd $INCLUDE
	ls ${SORT} *conf*
	cd - >/dev/null
	exit
fi

# directory check
[[ "$(pwd)" != *"include"* ]] && echo "$NAME: directory error" && exit 1 # only run under include
[[ "$(pwd)" == "$INCLUDE" ]] && echo "$NAME: directory error" && exit 1  # but not in it

# main
#--------------------------- 
[ "$DEBUG" == 1 ] && echo "---Functions---" && typeset -F && read -p "${N}-Continue-" -n 1 x
[ "$DEBUG" == 1 ] && echo "---Main---" && set -x

## rename readme.md to header.md if found - because I changed the way it worked
[ -f readme.md ] && mv readme.md header.md

## top 
bl >index.md         # start a new file each run
[ ! -z "$BACKGROUND" ] && echo "<style> body { background-image: url($BACKGROUND); } </style>" >index.md  # if a background is set start with that
echo "# $TITLE" >>index.md
bl >>index.md
if [ "$LOC" == "NEWS" ]
then
    echo "<div style=\"text-align: center;\">">>index.md
    echo "## $(date "+%A %B %e, %Y")">>index.md
    echo "</div>">>index.md
fi
[ -f header.md ] &&	cat header.md >>index.md
bl >>index.md
[ -f .bold ] && bl >>index.md && echo "___Bold Italics items are recommended___" >>index.md && bl >>index.md 
echo "<hr class=\"two\">"  >>index.md
bl >>index.md
if [ "$LOC" == "NEWS" ] # Add daily Proverb to today's clip listing
then
	echo -n "<div style=\"text-align: center;font-size: x-large;\">[:scroll: Proverb $(date "+%e")](/kjv/proverbs.html#prv-$(date +%-e)){target="blank"}">>index.md
    echo " [📚 Morning And Evening](/include/faith/morning-and-evening.pdf#view=FitH&nameddest=Morning, $(date "+%B %-e")){target="blank"}</div>">>index.md
	bl >>index.md
    if [ -f head.md ] 
    then
        cat head.md >>index.md
        bl >>index.md
        /home/mitch/bin/rss2md >>index.md
        bl >>index.md
    fi
else
    [ -f head.md ] && cat head.md >>index.md
    bl >>index.md
fi

## check for additional directories
for DIRS in $(\ls -d */ 2>/dev/null)
do
	[[ "$OPTIONS" == *"-f"* ]] && break
	DIRN=$(echo $DIRS|cut -d'.' -f1|tr '-' ' '|sed -e 's/.*/\L&/' -e 's/[a-z]*/\u&/g')
	if [[ $DIRN == *"$(date +%a)"* ]] || [[ "$DIRN" == *"$(date +%b)"* ]] 
	then
		echo "- [📂 ___${DIRN}___](${DIRS}) $([ -f "$DIRS.desc" ] && cat "$DIRS.desc")" >>index.md
	else
		echo "- [📂 ${DIRN}](${DIRS}) $([ -f "$DIRS.desc" ] && cat "$DIRS.desc")" >>index.md
		if [ $(ls -d ${DIRS}*/ 2>/dev/null| wc -l) -gt 0 ]
		then
			for SUBD in $(\ls -d ${DIRS}*/)
			do
				SUBN=$(echo $(basename $SUBD)|cut -d'.' -f1|tr '-' ' '|sed -e 's/.*/\L&/' -e 's/[a-z]*/\u&/g')
				if [[ "$SUBD" == *"$(date +%b|tr [A-Z] [a-z])"* ]] || [[ "$SUBD" == *"$(date +%a|tr [A-Z] [a-z] )"* ]] 
				then
					echo "  - [📂 ___${SUBN}___](${SUBD}) $([ -f "$SUBD.desc" ] && cat "$SUBD.desc")" >>index.md
				else
					echo "  - [📂 ${SUBN}](${SUBD}) $([ -f "$SUBD.desc" ] && cat "$SUBD.desc")" >>index.md
				fi
			done
		fi
	fi
	if [ ! -f "${DIRS}index.html" ] || [[ "$1" == *"-r"* ]]
	then
		cd ${DIRS}
		$0 -n
		cd -
	fi
done
[ -n "$DIRS" ] && bl >>index.md && echo "---" >>index.md && bl >>index.md

[[ "$OPTIONS" == *"-d"* ]] && compile

## Get newest and place it at the top, for main directory.
if [[ "$OPTIONS" != *"-n"* ]] && [ $(ls *mp4 2>/dev/null|wc -l) -gt 0 ] 
then
	NEW=$(find . -type f -name '*mp4' -printf '%C@ %p\n' | sort -n | tail -1 | cut -f2- -d" ")
	NEWF=${NEW##*/}         # name of the file
	if [ -f header.md ]
	then
		if [ $(grep -c "$NEW" header.md) -lt 1 ] 
		then
			[ ! -f .skip ] && pi $NEWF >>index.md
			[ ! -f .skip ] && echo "<HR>" >>index.md
		fi
	else
        [ ! -f .skip ] && pi $NEWF >>index.md
        [ ! -f .skip ] && echo "<HR>" >>index.md
	fi
fi

## under construction (what to display in an empty directory)
if [ "$1" == "-u" ]
then
	cp ~/Pictures/under-construction-sign.png .  # You will need to change this to a place/pic of yours
else
	[ -f under-construction-sign.png ] && \rm under-construction-sign.png
fi

X=Y
## main loop
for FILE in $(ls ${SORT}|egrep -v 'index|header|tail|head|include')
do    
	[ -d "$FILE" ] && continue # skip if it's a directory
	[ "$FILE" = "$NEWF" ] && continue
	if [ -f header.md ]
	then
		[ $(grep -c "$FILE" header.md) -gt 0 ] && continue
	fi
	if [ -f head.md ]
	then
		[ $(grep -c "$FILE" head.md) -gt 0 ] && continue
	fi
	if [ -f tail.md ]
	then
		[ $(grep -c "$FILE" tail.md) -gt 0 ] && continue
	fi
	echo -ne "\033[2K" # clear to the beginning of line
	echo -ne "\r$FILE" # move cursor to beginning of line, print file, no new line  ;)
	EXT="${FILE##*.}"
	NAME=$(echo $FILE|cut -d'.' -f1|sed -e 's/[-_]/ /g' -e 's/.*/\L&/' -e 's/[a-z]*/\u&/g')

	case $EXT in
		mp4|webm|mkv) # video to play
			bl >>index.md
			pi $FILE >>index.md
			bl >>index.md
            echo "[🔝](#) ">>index.md
            echo "<HR>>">>index.md
			;;
		bmp|webp|jpg|jpeg|png|gif) # Pic
			bl >>index.md
			FILENAME="${FILE%.*}"
			if [ $(ls $FILENAME.* |wc -l) -lt 2 ]
			then
				pi $FILE |tr -d '\n' >>index.md
			fi
			;;
		md) # markdown
			FILENAME="${FILE%.*}"
			if [ $(ls $FILENAME.* |wc -l) -lt 2 ]
			then
				mkln $FILE >>index.md
			fi
			;;
		*) # fallback
			mkln $FILE >>index.md
			;;
	esac
done  

compile