#!/bin/bash

if ! [ -d "./.git" ]
	then
		echo "Should be executed from the repo root."
		exit 1
fi

#Use "sed" or "gsed" if avaliable.
seder="sed"
if hash gsed 2>/dev/null; then
    seder="gsed"
fi

if [ $1 = "test" ]
  then
    places=("./core/tools/doc-fmt")
  else
    places=("./doc" "./layers")
fi

for place in "${places[@]}"
do :
   #Remove trailing delimiters in headlines
   find $place -name "*.org" -type f -exec $seder -i 's/^\(*\+\s\+.*\)[;,.]$/\1/g' {} \;
   #Remove trailing spaces
   find $place -name "*.org" -type f -exec $seder -i 's/[ \t]*$//' {} \;
   #Remove #+HTML_HEAD_EXTRA: ... readtheorg.css" />
   find $place -name "*.org" -type f -exec $seder -i '/#+HTML_HEAD_EXTRA.*readtheorg.css.*/d' {} \;
   #Replace multiply empty lines with a single empty line
   find $place -name "*.org" -type f -exec $seder -i '/^$/N;/^\n$/D' {} \;
   #Replace :TOC_4_org: with :TOC_4_gh:
   find $place -name "*.org" -type f -exec $seder -i 's/:TOC_4_org:/:TOC_4_gh:/' {} \;
   #apply toc-org
   find $place -name "*.org" -type f -exec emacs -batch -l ./core/tools/doc-fmt/fmt.el '{}' -f apply-all \;
done