#!/usr/bin/env bash
: << '@UsageComment'
./new-entry $1 = [00|b|n|h|i]
b or 0 = find md, files without extension
0h or 00 = find .htm files
	./new-entry 00 b
n or 1 = new entry, must give second input as title
	./new-entry n 'blog title here'
r,mh,h or 2 = md file convert to html, 2nd input as filename, 
			3rd input is not require ( default is b/)
	./foo h 011 (im)
i or 3 = add/edit md filename and blog title to index, 2nd input as filename
	./foo i 011 (im)
@UsageComment
######
blogs(){
find . -maxdepth 1 -type f ! -name '*.*'
#find file with no extension
}

blogTitle(){
head -1 "${1}"| sed 's/.*# //'|xargs
}
missing(){
	if [[ -z "${1}" ]];then 
		echo "missing input!!"; exit;
	fi
}

newEntry(){
title="${1}"
#title=$(echo "$title"| sed "s/\b\(.\)/\u\1/g") #captialize, now done in css
new=01
[[ -z `blogs` ]] && touch 01
if [[ -f 01 ]];then
 #new=$(blogs|sort -V|tail -1|cut -d"/" -f2)
 #new=$(ls|grep -E "^[0-9]"|sort -V|tail -1)
 new=$(blogs|sed 's/^..//'|grep -E "^[0-9]"|sort -V|tail -1)
 new=$((new+1))&& touch $new
fi
#markdown
echo -e "### $title\n----" > $new 
echo 'filename:' $new 'was created'
}

useExtra(){
input="${1}"; output="${2}";
head -2 $input |markdown_py > $output;
## get parameters for extras on line 3 of markdown file
extra=$(sed '3!d' $input| awk 'BEGIN {FS="--"};{print $2}'|cut -d':' -f2|tr -d " ")
#apply extra starting from line 5
tail -n +5 $input |python2 ./bin/markdown2 --extras $extra >> $output;
#break;
}

mdtoHtml(){
input="${1}" #markdown file
output="$input.htm"
#[[ -z "$2" ]] && exit;
missing "$2";
todir="${2}" #relative, ../$input2/
headOut=entry-template.txt
#copy input to tmp
cp "$input" /tmp/$input
input="/tmp/$input"

new_title=$(blogTitle "$input")
[[ -f $input && -f $headOut ]] || exit 1;

sed -i 's/[[:blank:]]*$//' $input # each line remove blank end
sed -i 's/$/  /' $input # add double space at end

#checkExtra=$(awk "/markdown-extras/ {print FNR}" $input)
checkExtra=$(awk "/extra/ {print FNR}" $input|grep 3)
if [[ -z $checkExtra ]];then
markdown_py $input > $output; #extra not found/use on 3rd line
else
echo 'use Extra!'
useExtra "$input" $output; #if detect
fi

sed -i -e "1 e head -n -4 $headOut" $output #prepend $headOut except last 4 line to $output
sed -i "s<blog_title<$new_title<g" $output # no \/[]; {}+$.*[\^ etc.
tail -4 $headOut >> $output
if [[ "${2}" != "b" ]];then sed -i 's/00blogdex/00imdex/g' $output;fi

mv $output "../$todir/"
echo 'markdown' $input 'to' "$todir/$output" 'complete'
#exit
}

newIndex(){
input="${1}" # md filename
missing "$2"; #[[ -z "$2" ]] && exit;
todir="${2}" #which dir, realtively ../$todir/
# check input md or input.htm exist 
in=$(blogs|grep $input)
in2=$(ls "../$todir"/*.htm|grep $input)
missing "$in"; #[[ -z "$in" ]] && exit;
[[ -z "$in2" ]] && mdtoHtml "$input" "$todir";
#output which index
[[ "${2}" != "b" ]] && id=index2.md || id=index.md 
echo $id
#exit
new_title=$(blogTitle "$input")
check=$(awk "/$input.htm/ {print FNR}" $id)
if [[ -z $check ]];then
 sed -i "1i[$new_title]($input.htm)" $id #new entry
 echo -e '\nnew entry added'
else
 line=$check\s
 sed -i "$line<\[.*]<[$new_title]<" $id #or replace
 ## "s/aaa=.*/aaa=xxx/g"; "63s|^.*$|$string|"
 echo -e '\ntitle replaced'
fi

[[ "${2}" != "b" ]] && dexx=im
./index-md2html.sh $dexx #final steps
exit
}

#### exec begins here
[[ $(pwd|grep md-sh) ]] || exit;
missing "$1"; # [[ -z "$1" ]] && exit
infile="${2}" #blog title or md file
atdir="${2}"
case "$1" in
0h|00)
	[[ -z "$2" ]] && atdir="../b" || atdir="../$atdir";
	ls "$atdir"/*.htm|sort -V;exit ;;
[b0])
	[[ -z `blogs` ]] && echo "find none" || blogs|sort -V;exit ;;
*)
	;;
esac
missing "$2"; #[[ -z "$2" ]] && exit 
outdir="${3}"
#default output to b/ folder
[[ -z "$3" ]] && outdir="b"
case "$1" in	
[n1])
	newEntry "$infile";echo "title: $infile";; #infile = blog title
r|mh|h|2)
	mdtoHtml "$infile" "$outdir";; # md and todir
r2|h2)
	mdtoHtml "$infile" im;; # md and todir
[i3])
	newIndex "$infile" "$outdir";; # md and todir
ii|i2)
	newIndex "$infile" im;; # md and todir
*)
	echo NULL; exit
	;;	
esac
exit;

#http://omz-software.com/pythonista/docs/ios/markdown2.html
#https://github.com/trentm/python-markdown2/wiki/link-patterns
#python markdown2.py --extras name1,name2 ...
# spoiler
#https://pastebin.com/raw/uFhhu6GL
#https://stackoverflow.com/questions/255898/how-to-iterate-over-arguments-in-a-bash-script