#!/bin/sh
# Update the biblio.csv file, and reflect changes in the corresponding webpages,
# committing and pushing the changes if any made.
# Webpages changed: rd/index, rd/by-month.
# Dependencies: sc-im, git.

BIBLIO="$HOME/docs/wr/orgd/kt/biblio.csv"
TABLE_FILE='/tmp/biblio-tbl-formatted'

if [ "$1" = "-u" ] ; then
	# Do nothing. This won't ask to update the file, but will just carry on,
	# so that it can update the website.
	echo "" > /dev/null
else
	hash_before="$(sha256sum "$BIBLIO")"
	sc-im --txtdelim=";" "$BIBLIO"
	hash_after="$(sha256sum "$BIBLIO")"
	if [ "$hash_before" = "$hash_after" ] ; then 
		echo "No changes made - exitting early!"
		exit 0
	fi
fi

####################### First half: update rd/index ###########################
WEBPAGE_PATH="$WEBSITE_PATH/rd/index.html"
DELIMITER_BEGIN="<!-- rd:begin -->"
DELIMITER_END="<!-- rd:end -->"

table_formatted="$(biblio-fmt-tbl "$BIBLIO")"

echo "$table_formatted" > "$TABLE_FILE"
sed -i -ne "/$DELIMITER_BEGIN/ {p; r $TABLE_FILE" -e ":a; n; /$DELIMITER_END/ {p; b}; ba}; p" "$WEBPAGE_PATH"

# Commit and push the changes
cd "$(dirname "$WEBPAGE_PATH")"
git add "$(basename "$WEBPAGE_PATH")"

####################### Second half: update rd/by-month #######################
WEBPAGE_PATH="$WEBSITE_PATH/rd/by-month.html"
DELIMITER_BEGIN="<!-- rd-by-month:begin -->"
DELIMITER_END="<!-- rd-by-month:end -->"

table_formatted="$(biblio-by-month "$BIBLIO")"

echo "$table_formatted" > "$TABLE_FILE"
sed -i -ne "/$DELIMITER_BEGIN/ {p; r $TABLE_FILE" -e ":a; n; /$DELIMITER_END/ {p; b}; ba}; p" "$WEBPAGE_PATH"

# Commit and push the changes
cd "$(dirname "$WEBPAGE_PATH")"
git add "$(basename "$WEBPAGE_PATH")"


######################### Commit and push all changes #########################
ws-push