#!/bin/bash

set -euo pipefail

# Prepare pandoc filters

if [ -d pandocfilters/.git ]; then

    (cd pandocfilters && git remote update && git merge --ff-only)

else

    git clone https://github.com/octobus-net/pandocfilters.git

fi

# Dependencies for pandoc and its filters itself

python -m pip install pandocfilters

python -m pip install panflute

python -m pip install pygraphviz

CMD_NOT_FOUND=0

check_command() {

    cmd=$1

    if ! which "$cmd" >/dev/null 2>&1; then

        echo "Error: command '$cmd' not found in \$PATH"

        echo "Please install '$cmd'"

        CMD_NOT_FOUND=1

    else

        echo "$cmd command was found"

    fi

}

check_command pandoc

if [ "$CMD_NOT_FOUND" -ne "0" ]; then

    exit 1

fi