#!/bin/sh

# ZODIAC - a simple static site generator
# Copyright (c) 2011 Chase Allen James <nx-zodiac@nu-ex.com>

ZODLIB="$( cd "$( dirname "$0" )" && pwd )/../lib"

proj=$1
target=$2

if [ -z "$1" ] || [ -z "$2" ]; then
  echo "usage: zod projectdir targetdir"
  exit
fi

if [ ! -e $proj ]; then
  echo "error: project directory does not exist"
  exit
fi

if [ ! -e $target ]; then
  echo "error: target directory does not exist"
  exit
fi

layout=$proj/main.layout
global_meta=$proj/global.meta

for f in $(find $proj/*); do
  dir=$(dirname $f)

  # Find the target directory if one must be created
  # Start by pulling the project directory out of the filepath
  # with awk and then removing the filename with sed
  targetdir=$(awk "BEGIN { split(\"$f\",a,\"$proj/\"); print a[2] }" | sed "s/`basename $f`//")
  targetpath=$target/$targetdir
  if [ ! -z "$targetdir" ]; then
    mkdir -p $target/$targetdir
  else
    # There is no directory to create in target,
    # i.e. file is in the root of the project
    targetpath=$target
  fi

  filename=$(basename $f)
  if [ "$(echo $filename | sed 's/\.md//;s/\.meta//;s/\.layout//')" == $filename ] &&
     [ $filename != "helpers.awk" ]; then

    # we're just moving a file over
    if [ ! -d $f ]; then
      cp $f $targetpath/
    fi

  elif [ "$(echo $filename | sed 's/\.md//')" != $filename ]; then

    page=$(basename $f | sed 's/\.md//')

    ops=""

    if [ -e $proj/helpers.awk ]; then
      ops="$ops -f `pwd`/$proj/helpers.awk"
    fi

    ops="$ops -f $ZODLIB/render.awk"
    ops="$ops -v AWKLIB=\"$ZODLIB\""

    if [ -e $global_meta ]; then
      ops="$ops $global_meta"
    fi

    if [ -e $dir/$page.meta ]; then
      ops="$ops $dir/$page.meta"
    fi

    ops="$ops $dir/$page.md"

    if [ -e $layout ]; then
      ops="$ops $layout"
    fi

    awk $ops > $targetpath/$page.html

  fi
    

done