#!/usr/bin/env bash
# Summary: Configure the shell environment for basher
# Usage: eval "$(basher init -)"

set -e

shell="$2"
if [ -z "$shell" ]; then
  echo "echo 'basher init usage has changed, please specify the name of your shell as an argument:

eval \"\$(basher init - bash)\" # or zsh, fish, sh etc

For more information, check this PR: https://github.com/basherpm/basher/pull/77
'"
  exit 1
fi

print_fish_commands() {
  echo "set -gx BASHER_SHELL $shell"
  echo "set -gx BASHER_ROOT $BASHER_ROOT"
  echo "set -gx BASHER_PREFIX $BASHER_PREFIX"
  echo "set -gx BASHER_PACKAGES_PATH $BASHER_PACKAGES_PATH"

  echo 'if not contains $BASHER_ROOT/cellar/bin $PATH'
  echo '  set -gx PATH $BASHER_ROOT/cellar/bin $PATH'
  echo 'end'
}

print_sh_commands(){
  echo "export BASHER_SHELL=$shell"
  echo "export BASHER_ROOT=$BASHER_ROOT"
  echo "export BASHER_PREFIX=$BASHER_PREFIX"
  echo "export BASHER_PACKAGES_PATH=$BASHER_PACKAGES_PATH"

  echo 'if [ "${PATH#*$BASHER_ROOT/cellar/bin}" = "${PATH}" ]; then'
  echo '  export PATH="$BASHER_ROOT/cellar/bin:$PATH"'
  echo 'fi'
}

load_bash_package_completions() {
  echo 'for f in $(command ls "$BASHER_ROOT/cellar/completions/bash"); do source "$BASHER_ROOT/cellar/completions/bash/$f"; done'
}

load_zsh_package_completions() {
  echo 'fpath=("$BASHER_ROOT/cellar/completions/zsh/compsys" $fpath)'
  echo 'for f in $(command ls "$BASHER_ROOT/cellar/completions/zsh/compctl"); do source "$BASHER_ROOT/cellar/completions/zsh/compctl/$f"; done'
}

case "$shell" in
  fish )
    print_fish_commands
    ;;
  * )
    print_sh_commands
    ;;
esac

if [ -e "$BASHER_ROOT/lib/include.$shell" ]; then
  echo ". \"\$BASHER_ROOT/lib/include.$shell\""
fi

if [ -e "$BASHER_ROOT/completions/basher.$shell" ]; then
  echo ". \"\$BASHER_ROOT/completions/basher.$shell\""
fi

case "$shell" in
  bash )
    load_bash_package_completions
    ;;
  zsh )
    load_zsh_package_completions
    ;;
esac