#!/bin/bash

# Title......: pi
# Description: post it - a tool to create html mp4 videos or pictures
# Author.....: Mitchell Johnston - uid 0
# Contact....: mitch@crn.hopto.org
# Updated....: Thu May 21 11:17:31 AM CDT 2026
#----------------------------------

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

: ' Changes
Sun May 17 2026 Added -F option to display functions, -V view source
Tue Jul 08 2025 Added ability to pass file paths and local URLs
Thu Jan 30 2025 Added option to not display comment file
Thu Feb 15 2024 Added version() to display version and changes
'

# variables
#----------------------------------
[ "$1" == "-D" ] && DEBUG=1 && shift 1     # -D to turn on debug mode

if [[ "$1" == "-n" ]] # -n to turn off comments
then
    export SKIP="yes" 
    shift 1   
fi

PS4='$SECONDS $LINENO: '                   # debug prompt
DOW=$(date +%a)                            # day of week: Thu
TODAY=$(date +%m/%d)                       # month/day: 03/25
DOM=$(date +%d)                            # day of month: 25
OS=$(uname -s)                             # OS type: SunOS Linux
NAME=${0##*/}                              # name of the script
BASE='/var/www'
PDIR=$(cd ..;basename `pwd`)

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

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

html(){ ## mark up code
    vim -f +"syn on" +"colorscheme termschool" +"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 "$NAME" "$*"
}

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' $0
    echo " "
    sed -n "/' Changes/,/^ *$/p" <$0 |grep  -E -v 'sed -n|exit 0|}'
    exit 0
}

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

# part of my code management system
# if you want a function or peice of code from another script:
#  !!{script} -F {function}
#  will insert the code.
[[ "$1" = "-V" ]] && bat -p -l bash $0 && exit
if [[ "$1" = "-F" ]] 
    then
        [[ "$#" -eq 2 ]] && declare -f "$2" |bat -p -l bash && exit
        [[ "$#" -eq 1 ]] && declare -f |bat -p -l bash && exit
fi

# 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
	log "Updated $0"
    html $0
    cp $0 /var/www/unix
    mv $0.html /var/www/unix
	exit
fi

# display help if needed
if [ "$1" == "-h" ] || [ "$1" == "--help" ]
then
fmt -s -w $(tput cols) <<END
$NAME {file.mp4|jpg,png,webp}

Generate HTML code with preview for use in web page. By default it will use file in the same directory it is run in. If not found, it will search for it under $BASE, and if found will use that as the location.
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 ffmpegthumbnailer >/dev/null || sudo apt install ffmpegthumbnailer -yyq
command -v ffmpeg >/dev/null || sudo apt install ffmpeg -yyq

# directory check
[[ "$(pwd)" != *"www"* ]] && echo "$NAME: directory error" && exit 1


# main
#--------------------------- 
[ "$DEBUG" == 1 ] && set -x

if [[ "$1" == *"/"* ]]
then
    exec $0 $(basename $1)
fi
FILE=$1
EXT="${FILE##*.}"

if [[ "$FILE" == *"http"* ]]
then
cat <<END
<div style="padding-bottom:56.25%; position:relative; display:block; width: 100%">
  <iframe width="100%" height="100%"
    src="$1"
    frameborder="0" allowfullscreen="" style="position:absolute; top:0; left: 0">
  </iframe>
</div>
END
exit
fi

case $EXT in
	svg|bmp|jpeg|jpg|png|gif|webp) # picture
		NAME=$(echo $FILE|cut -d'.' -f1|sed -e 's/[-_]/ /g' -e 's/.*/\L&/' -e 's/[a-z]*/\u&/g')
		cd /var/www/
		PIC="$(find . -name $1 -print |cut -d'.' -f2-)"
		cd - >/dev/null
        case $PDIR in
            "clips") SIZE="100%" ;;
            *) SIZE="100%";;
esac

# Exceptions 
[ "$(basename $PWD)" == "larkin" ] && SIZE="100%"
[ "$(basename $PWD)" == "linux-desktops" ] && SIZE="100%"
[ "$(basename $PWD)" == "desktops" ] && SIZE="100%"
[ "$(basename $PWD)" == ".house" ] && SIZE="100%"
[ "$(basename $PWD)" == ".family" ] && SIZE="100%"
[ "$(basename $PWD)" == "lisbon-nd" ] && SIZE="100%"
[[ "$PWD" == "*user-friendly*" ]] && SIZE="100%"
[[ "$PWD" == "*demotivation*" ]] && SIZE="100%"
[ "$(basename $PWD)" == "unix" ] && SIZE="100%"
[ "$(basename $PWD)" == "posters" ] && SIZE="75%"
[ "$(basename $PWD)" == "maps" ] && SIZE="75%"
[ "$(basename $PWD)" == "maps-us" ] && SIZE="75%"
[ "$(basename $PWD)" == "work" ] && SIZE="100%"
[ "$(basename $PWD)" == "think" ] && SIZE="85%"
[ "$(basename $PWD)" == "think2" ] && SIZE="85%"
[ "$(basename $PWD)" == "think3" ] && SIZE="85%"
[ "$(basename $PWD)" == "1000-flat-earth-memes" ] && SIZE="85%"
[ "$EXT" == "svg" ] && SIZE="100%"

cat <<END # here docs need to be left justified
[${NAME}.${EXT}](${PIC})
[!["$NAME"](${PIC}){width=${SIZE} height=auto}](${PIC} "$NAME")<p>

[🔝](#)
<HR>
END
exit ;; # stop here for picture
    pdf) #pdf
		cd /var/www/
		PDF="$(find . -name $1 -print|cut -d '.' -f2-)"
cat <<END
<iframe src="${PDF}#view=FitH" scrolling="no" width="100%" height="400" style="border:1px solid black;"></iframe> 
END
exit ;;
esac

# Check to see if file is current directory, if not find it
if [ ! -f "$1" ]
then
	cd $BASE
	FOUND=$(find . -name $1 2>/dev/null) 
	cd $(dirname $FOUND)
fi

DURATION=$(ffmpeg -i $1 -hide_banner 2>&1 |grep Duration |awk '{print $2}'|cut -d: -f1,2)
FILE="${1%.*}"                   # strip extention
PIC="$FILE.png"                  # png name

if [ ! -f $PIC ] # this determines if the file has been posted before 
then
	ffmpegthumbnailer -i $1 -o $PIC -s 0 -t 15 -f >/dev/null 2>&1 # create png pics from file
	log "Added: $(echo $1|tr '-' ' ')"
fi

# set path/name
cd /var/www
NEW="$(find . -name $1 -print |cut -d'.' -f2-)"
PNG="$(find . -name $PIC -print |cut -d'.' -f2-)"
cd - >/dev/null

# Display code
cat <<END
[__$(echo $FILE|tr '-' ' '|tr '_' ' '|sed -e 's/.*/\L&/' -e 's/[a-z]*/\u&/g')__]($NEW) Duration: $DURATION Posted: $(stat $1|grep Modify|cut -d ' ' -f 2) <video width="100%" height="none" controls="controls" poster="$PNG" preload="none"> <source src="$NEW" preload="none" type="video/mp4"> Your browser does not support the video tag.  </video> 
END

log "added: $1"
## Add comment unless -n was passed

COMMENT="${FILE}.md"
if [[ -f "$COMMENT" && "$SKIP" = "" ]]
then
    bl 
    cat $COMMENT
    bl
fi

exit 0