#!/usr/local/bin/bash
# requires: calibre installed for ebook-convert

# mk-pdf
# Modified from mk-epub

# Created by Sensei on Jan 16, 2018
# Last edited: Aug 18, 2019

usage() {
   #printf -v spcs "%*s" ${#prgE} " "   # indent
   #indent example: $spcs  Options MUST appear before message.
   cat <<EOF

Usage: $prgE [options]

       Create NCID-UserManual.pdf and NCID-API.pdf from markdown files.
       
Options:
       [-h] [-k]

       -h = show this help

       -k = keep work around files when done instead of deleting them
            
EOF
       
exit 1
}

prog=`basename $0 .sh`
prgE=`basename $0` # with extension

MacOS_ebook_prog=/Applications/calibre.app/Contents/MacOS/ebook-convert

# Options on command line
while getopts :hk opt ; do
    case $opt in
        h) usage;;
        k) keep=1;;
        :) echo "Option -$OPTARG requires an argument."; usage;;
        *) echo "Invalid option: -$OPTARG"; usage;;
    esac
done
shift $((OPTIND-1)) # skip over command line args (if any)

# main routine  

# check for needed files
[ -f NCID-API-pdf.md -a -f NCID-UserManual-pdf.md ] || make doc

# create NCID-UserManual-pdf-workaround.md
sed 's/&#x7[Cc];/@PIPE@/g' > NCID-UserManual-pdf-workaround.md < NCID-UserManual-pdf.md

ebook_prog=$MacOS_ebook_prog
[ -x "${ebook_prog}" ] || \
{
    ebook_prog=`type -p ebook-convert` > /dev/null 2>&1
    [ $? = "1" ] && ebook_prog=""

    [ -x ${ebook_prog} ] || \
    {
      echo "Could not find ${ebook_prog}"
      exit 1
    }
}

${ebook_prog} \
    NCID-UserManual-pdf-workaround.md NCID-UserManual.pdf \
    --title "NCID User Manual" \
    --authors "John L Chmielewski & Todd A Andrews" \
    --tags "setup, admin" \
    --language English \
    --max-toc-link 300 \
    --input-encoding UTF-8 \
    --pdf-page-numbers \
    --pdf-page-margin-top=24 \
    --pdf-page-margin-right=20 \
    --pdf-page-margin-bottom=36 \
    --pdf-page-margin-left=30 \
    --toc-threshold 6 \
    --preserve-cover-aspect-ratio \
    --sr1-search @PIPE@ \
    --sr1-replace "|"

# remove NCID-UserManual-pdf-workaround.md
[ -z "$keep" ] && rm -f NCID-UserManual-pdf-workaround.md

# create NCID-API-pdf-workaround.md
sed 's/&#x7[Cc];/@PIPE@/g' > NCID-API-pdf-workaround.md < NCID-API-pdf.md

${ebook_prog} \
    NCID-API-pdf-workaround.md NCID-API.pdf \
    --title "NCID API" \
    --authors "John L Chmielewski" \
    --tags "API" \
    --language English \
    --max-toc-links 200 \
    --pdf-page-numbers \
    --pdf-page-margin-top=24 \
    --pdf-page-margin-right=20 \
    --pdf-page-margin-bottom=36 \
    --pdf-page-margin-left=30 \
    --toc-threshold 6 \
    --preserve-cover-aspect-ratio \
    --sr1-search @PIPE@ \
    --sr1-replace "|"

# remove NCID-API-pdf-workaround.md
[ -z "$keep" ] && rm -f NCID-API-pdf-workaround.md