#!/bin/sh
set -u

# TODO:
# import of images

# root directory of the cryptobox development environment
ROOT_DIR="$(dirname $(dirname $0))"

# retrieve these pages from the wiki
PAGES="CryptoBox CryptoBoxDev CryptoBoxKonzept CryptoBoxEn"
# the trailing slash is important
WIKI_HOST="https://systemausfall.org"
WIKI_URL="/wikis/howto/"
# the trailing slash is important
DEST_PATH="cbox-tree.d/usr/share/doc/cryptobox/html/"
TMP_FILE="/tmp/$(basename $0)-$$.out"
# the URL of the CGI of the cryptobox (the ampersand must be escaped!)
CBOX_CGI='/cryptobox?action=show_doc\&page='

[ ! -e "$DEST_PATH" ] && echo "$DEST_PATH does not exist" && exit 1

for PAGE in $PAGES; do
	PAGE_SRC="$WIKI_HOST$WIKI_URL$PAGE"
	echo "Importing $PAGE ..."

	[ -e "$TMP_FILE" ] && rm "$TMP_FILE"

	# download the page
	echo "	downloading the page ..."
	wget -q -O "$TMP_FILE" "$PAGE_SRC" || { echo "Downloading ($PAGE_SRC) failed!"; exit 1; }

	echo "	removing header and footer ..."
	# break lines before start of content
	sed -i 's#<div [^>]* id="content" [^>]*>#_END_OF_HEADER_\n#' "$TMP_FILE"
	sed -i 's#<div id="footer">#\n_START_OF_FOOTER_#' "$TMP_FILE"
	# remove all lines before and after "body"
	sed -i '1,/_END_OF_HEADER_/d; /_START_OF_FOOTER_/,$d' "$TMP_FILE"

	# TODO: replace wiki-links by references to the cbox-cgi
	# check if wiki-links are absolute!
	echo "	replacing wiki links ..."
	sed -i "s#\"$WIKI_URL#\"$CBOX_CGI#g" "$TMP_FILE"
	
	mv "$TMP_FILE" "${DEST_PATH}${PAGE}.html"
	echo "	finished!"
  done