#!/bin/bash
# WordPress posting script

# config:
EDITOR=vim
TRANSFORM=() # empty or a subset of: 'title' 'markdown'
USER="" # WP user to create the post
PASSWORD="" # application password generated for your WP user
SERVER="" # server hostname, optionally with subdirectories
STATUS="draft" # one of publish,future,draft,pending,private
CATEGORIES="" # comma separated integer IDs of categories
TAGS="" # comma separated integer IDs of tags
TMPFILE=/tmp/wordpress-post.txt # location of a temporary file with the post text

source ~/.config/wordpress-rest-curl/config.sh

# let the user create the post
$EDITOR $TMPFILE || exit 1
[[ -e $TMPFILE ]] || exit 1

# transformations
cp $TMPFILE $TMPFILE.trans
for T in "${TRANSFORM[@]}"; do
    if [[ "$T" == "title" ]]; then
        python >$TMPFILE.trans2 <<EOF
import re
with open('$TMPFILE.trans', 'r') as file:
    title = ''
    content = file.read()
    matches = re.match('^#+ (.+)', content, flags=0)
    if matches:
        title = matches.group(1)
        content = content[len(matches.group(0)) + 1:]
    with open('$TMPFILE.title', 'w') as titlefile:
        titlefile.write(title)
    print(content)
EOF
        TITLE=`cat $TMPFILE.title`
        rm $TMPFILE.title
        mv $TMPFILE.trans2 $TMPFILE.trans
    elif [[ "$T" == "markdown" ]]; then
        python >$TMPFILE.trans2 <<EOF
import markdown2
print(markdown2.markdown_path('$TMPFILE.trans'))
EOF
        mv $TMPFILE.trans2 $TMPFILE.trans
    fi
done
CONTENT=`cat $TMPFILE.trans`
rm $TMPFILE.trans

echo "--- START POST ---"
echo $CONTENT
echo "---  END POST  ---"
echo "Title: $TITLE"
echo "User: $USER"
echo "Server: $SERVER"
echo "Status: $STATUS"
echo "Categories: $CATEGORIES"
echo "Tags: $TAGS"
echo
read -p "Press enter to confirm..."

# push the post!
curl --user "$USER:$PASSWORD" -X POST \
    --data-urlencode "title=$TITLE" \
    --data-urlencode "content=$CONTENT" \
    --data-urlencode "status=$STATUS" \
    --data-urlencode "categories=$CATEGORIES" \
    --data-urlencode "tags=$TAGS" \
    "https://$SERVER/wp-json/wp/v2/posts/" || exit 1

# backup the posted data (temporarily until it is auto-removed)
mv $TMPFILE $TMPFILE.posted