#!/bin/bash

# Title......: gmap
# Description: gophermap generator
# Author.....: Mitchell Johnston - uid 0
# Contact....: mitch@crn.hopto.org
# Updated....: Thu 16 May 2024 05:59:22 AM CDT
#----------------------------------

# variables
#----------------------------------
[ "$1" == "-D" ] && DEBUG=1 && shift 1     # -D to turn on debug mode
PS4='$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
ROOT=/var/gopher                           # base gopher directory
SITE="Christian Remnant Now"               # Default name of site
DIR=${PWD##*/}                             # Current directory
TITLE="$(echo $DIR|sed -e 's/[-_]/ /g' -e 's/.*/\L&/' -e 's/[a-z]*/\u&/g')"

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

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

# 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
	log "Updated $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
$NAME {-r} {directory}

If a directory is not passed then the current directory will be assumed, if under $ROOT.

Options:
-r Checks for sub directories, will map them, unless named 'scripts'

Function:
- Looks for gophermap.head to use for a header
	- If not found will generate title based on direcotry name \$SITE/\$DIR
- Looks for gophermap.tail to use for a footer
	- Can use a a system default footer as well: $ROOT/default.tail
- for each file found will create map line with correct file type.
	- Title cases names

END
exit
fi

# listing of required apps
command -v bash >/dev/null || sudo apt install bash -qyy

if [ "$#" -eq 1 ]
then
	[ -d "$1" ] && cd $1
	[ "$1" == "-r" ] && echo "Recursive run"
elif [ "$#" -eq 2 ]
then
	[ -d "$1" ] && cd $1 && shift
	[ "$1" == "-r" ] && echo "Recursive run"
fi

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

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

## set header
if [ -f gophermap.head ]
then
	cat gophermap.head >gophermap
	[ "$(pwd)" == "$ROOT" ] && quote -g >>gophermap
	[ "$(pwd)" == "$ROOT" ] && echo "Tip: $(qt|fmt -w 40)" >>gophermap
	[ "$(pwd)" == "$ROOT" ] && log "Update"
else
	echo "$SITE / $TITLE" >gophermap
fi
echo " 
---[${TITLE}]---
">>gophermap
	
## check for additional directories
for DIRS in $(\ls -d */ 2>/dev/null)
do
	if [ "$1" == "-r" ] # recurse into directories
	then
		cd $DIRS
		$0 
		cd ..
	fi
	DIRN=$(echo $DIRS|cut -d'.' -f1|tr '-' ' '|sed -e 's/.*/\L&/' -e 's/[a-z]*/\u&/g')
	echo -e "1${DIRN}\t${DIRS}">>gophermap
done

## process files
for ENTRY in $(ls | egrep -v 'gophermap|default|bin|head|index|include')
do
	[ ! -f $ENTRY ] && continue
	EXT="${ENTRY##*.}"
	FNAME=$(echo $ENTRY|cut -d'.' -f1|sed -e 's/[-_]/ /g' -e 's/.*/\L&/' -e 's/[a-z]*/\u&/g')
	SIZE=$(ls -hs $ENTRY|cut -d' ' -f1)           # Get size in human readable format
	case $EXT in
		m4v|mp4|mpv|avi) # videos
			TYPE="9"
			;;
		pdf|epub|moba|azw3) # ebooks
			TYPE="9"
			;;
		wav|mp3|midi) # audio
			TYPE="s"
			;;
		jpg|jpeg|png|gif) # Pic
			TYPE="I"
			;;
		iso|gz|zip|tar|tgz|7z) # archive
			TYPE="9"
			;;
		exe) # Windows or DOS program
			TYPE="5"
			;;
		txt|md) # Text
			TYPE="0"
			;;
		htm|html) # Text
			TYPE="h"
			;;
		*) # fallback
			TYPE="9"
			;;
	esac
	echo -e "${TYPE}${FNAME} ${EXT} ${SIZE}\t $ENTRY"	>>gophermap
done

## set footer
if [ -f gophermap.tail ]
then
	cat gophermap.tail >>gophermap
else
	cat ${ROOT}/default.tail >>gophermap
fi

echo " ">>gophermap
echo "Updated:  $(date)">>gophermap

# Display quote to validate change
[ "$(pwd)" == "$ROOT" ] && grep -A 3 KJV gophermap

# vim: nospell ft=sh