#!/bin/zsh
###
# a-preview
###
# Previews an md file (or other) as a Almanack page
###
#
# Note: this is a clumsy hack from the very early days (pre-Django) of
# Almanack, and may well be deprecated. And I say that from the pre-Django days
# of Almanack.
 

function open_html() {
    if [[ $# -eq 0 ]]; then
        echo "Usage: open_html <file>"
        return 1
    fi

    local file_to_open="$1"

    case "$OSTYPE" in
        linux-gnu*)
            xdg-open "$file_to_open"
            ;;
        darwin*)
            open "$file_to_open"
            ;;
    esac
}

# Check if ALMANACK_ROOT is defined
if [[ -z "$ALMANACK_ROOT" ]]; then
    echo "Error: ALMANACK_ROOT is not defined."
    exit 1
fi

# Check for one command line argument
if [[ $# -ne 1 ]]; then
    echo "Usage: $(basename $0) <input_file.md>"
    exit 1
fi

WEB_ROOT=$ALMANACK_ROOT/web/static
WEB_RESOURCES=$WEB_ROOT/res
PANDOC_ASSETS=$ALMANACK_ROOT/assets/pandoc/

basename=${1%.*}

# pandoc -i $1 -B $WEB_RESOURCES/_header.html -c $WEB_RESOURCES/almanack.css --standalone -o $basename.html
pandoc --data-dir $PANDOC_ASSETS --metadata-file frontpage.json -i $1 --standalone -o $basename.html

open_html "$basename.html"