#!/usr/bin/env bash
rvm_base_except="selector"
source "$rvm_scripts_path/base"

rvm_docs_ruby_string="$(__rvm_environment_identifier | awk -F"$rvm_gemset_separator" '{print $1}')"
if [[ "$rvm_docs_ruby_string" = "system" || -z "$rvm_docs_ruby_string" ]]; then
  "$rvm_scripts_path"/log "error" "Currently 'rvm docs ...' does not work with non-rvm rubies."
  exit 1
fi

rvm_docs_type="${rvm_docs_type:-rdoc}"

# Ensure we have the doc directories.
if [[ ! -d "$rvm_docs_path" ]] ; then
  \mkdir -p "$rvm_docs_path/rdoc" "$rvm_docs_path/yard"
fi

usage() {
  printf "Usage: 'rvm docs {open,generate,generate-ri,generate-rdoc}'\n"
  exit 1
}

open_docs() {
  if [[ -s "$rvm_docs_path/$rvm_docs_ruby_string/$rvm_docs_type/index.html" ]] ; then
    if command -v open >/dev/null ; then
      open "$rvm_docs_path/$rvm_docs_ruby_string/$rvm_docs_type/index.html"
    elif command -v xdg-open >/dev/null ; then
      xdg-open "$rvm_docs_path/$rvm_docs_ruby_string/$rvm_docs_type/index.html"
    else
      "$rvm_scripts_path"/log "error" "Neither open nor xdg-open were found, in order to open the docs one of these two are required. \n(OR you can let me know how else to open the html in your browser from comand line on your OS :) )"
    fi
  else
    "$rvm_scripts_path"/log "error" "$rvm_docs_type docs are missing, perhaps run 'rvm docs generate' first?"
  fi
}

generate_ri() {
  # Generate ri docs
  __rvm_pushpop "$rvm_src_path/$rvm_docs_ruby_string/"
  "$rvm_scripts_path"/log "info" "Generating ri documentation, be aware that this could take a *long* time, and depends heavily on your system resources..."
  "$rvm_scripts_path"/log "info" "( Errors will be logged to $rvm_log_path/$rvm_docs_ruby_string/docs.error.log )"
  rdoc -a --ri --ri-site > /dev/null 2>> $rvm_log_path/$rvm_docs_ruby_string/docs.error.log
  __rvm_pushpop
}

generate_rdoc() {
  __rvm_pushpop "$rvm_src_path/$rvm_docs_ruby_string/"
  \rm -rf "$rvm_docs_path/$rvm_docs_ruby_string/$rvm_docs_type/"
  "$rvm_scripts_path"/log "info" "Generating rdoc documentation, be aware that this could take a *long* time, and depends heavily on your system resources..."
  "$rvm_scripts_path"/log "info" "( Errors will be logged to $rvm_log_path/$rvm_docs_ruby_string/docs.error.log )"
  if gem list | \grep -q ^hanna ; then
    hanna -o "$rvm_docs_path/$rvm_docs_ruby_string/$rvm_docs_type" --inline-source --line-numbers --fmt=html > /dev/null 2>> "$rvm_log_path/$rvm_docs_ruby_string/docs.error.log"
  else
    rdoc -a -o "$rvm_docs_path/$rvm_docs_ruby_string/$rvm_docs_type" > /dev/null 2>> "$rvm_log_path/$rvm_docs_ruby_string/docs.error.log"
  fi
  __rvm_pushpop
}

args=($*)
action="${args[0]}"
args="$(echo ${args[@]:1}) " # Strip trailing / leading / extra spacing.

case "$action" in
  open)          open_docs ;;
  generate)      generate_ri; generate_rdoc ;;
  generate-ri)   generate_ri ;;
  generate-rdoc) generate_rdoc ;;
  *)             usage ;;
esac

exit $result