#!/bin/bash

#
# Builds the ReadTheDocs documentation locally.
# Usage. Execute in this directory:
#   $ ./local-build.sh
# This creates a Python virtual env 'venv' in the current directory.
#

# Choose the default directories
source_dir="source"
build_dir="source/_build"
venv_dir="venv"
ext_dir="../"

die() {
  echo "$@" 1>&2 ; popd 2>/dev/null; exit 1
}

arg() {
  echo "$1" | sed "s/^${2-[^=]*=}//" | sed "s/:/;/g"
}

# Display bootstrap usage
usage() {
echo '
Usage: '"$0"' [<options>]
Options: [defaults in brackets after descriptions]
Configuration:
    --help                          print this message
    --tiledb=PATH                   (required) path to TileDB repo root
'
    exit 10
}

# Parse arguments
tiledb=""
while test $# != 0; do
    case "$1" in
    --tiledb=*) dir=`arg "$1"`
                tiledb="$dir";;
    --help) usage ;;
    *) die "Unknown option: $1" ;;
    esac
    shift
done

if [ ! -d "${tiledb}" ]; then
    die "invalid tiledb installation directory (use --tiledb)"
fi

build_ext() {
    pushd "${ext_dir}"
    TILEDB_PATH=${tiledb} pip install .[doc] || die "could not install tiledb-py"
    popd
}

build_site() {
  if [[ $OSTYPE == darwin* ]]; then
      export DYLD_LIBRARY_PATH="${tiledb}/lib"
  else
      export LD_LIBRARY_PATH="${tiledb}/lib"
  fi
  export TILEDB_PY_NO_VERSION_CHECK="yes"
  sphinx-build -E -T -b html -d ${build_dir}/doctrees -D language=en ${source_dir} ${build_dir}/html || \
      die "could not build sphinx site"
}

run() {
  build_ext
  build_site
  echo "Build complete. Open '${build_dir}/html/index.html' in your browser."
}

run