#!/usr/bin/env bash

source "$rvm_scripts_path/base"

if [[ -z "$1" ]] ; then
  $rvm_scripts_path/log "error" "Action must be specified."
  exit 1
fi

action="$1" ; shift
args="$*"

__rvm_attempt_single_exec() {
  # Return if we have multiple rubies. or we're not running exec.
  local ruby_string_lines="$(printf "$rvm_ruby_strings" | wc -l | __rvm_strip)"
  if [[ "$action" = "exec" && -n "$rvm_ruby_strings" && "$ruby_string_lines" = "0" ]]; then
    __rvm_become "$rvm_ruby_strings"
    eval "exec $args"
  fi
  return 1
}

# Perform an action using one of a selected ruby's specified binaries.
__rvm_ruby_do() {
  # Return on invalid rubies.
  __rvm_become "$current_set_ruby" || return 1
  if [[ "$action" = "exec" ]]; then
    # Exec is a special case.
    rvm_command="$args"
  else
    binary="$(echo $action | sed 's#do$##')"
    if [[ -x "$rvm_ruby_home/bin/$binary" ]] ; then
      binary="$rvm_ruby_home/bin/$binary"
    elif [[ -x "$rvm_ruby_global_gems_path/bin/$binary" ]] ; then
      binary="$rvm_ruby_global_gems_path/bin/$binary"
    elif [[ -x "$rvm_ruby_gem_home/bin/$binary" ]] ; then
      binary="$rvm_ruby_gem_home/bin/$binary"
    elif [[ "system" = "$rvm_ruby_string" ]] && [[ -x "$(command -v $binary)" ]] ; then
      binary="$(basename $(command -v $binary) 2>/dev/null)"
    else
      $rvm_scripts_path/log "warn" "'$binary not found for $rvm_ruby_string' either does not exist or is not executable? :("
      __rvm_unset_ruby_variables
      return 1
    fi

    if [[ ! -z "$rvm_ruby_mode" ]] ; then
      rvm_ruby_string="${rvm_ruby_string}-${rvm_ruby_mode}"
      rvm_ruby_mode="--$(echo "$rvm_ruby_mode" | sed 's/^m//')"
    fi

    load_path="$(dirname $(command -v $binary) 2>/dev/null):$rvm_ruby_load_path"
    # TODO: the else case below should be run if $args =~ /\.rb$/
    if [[ "ruby" = "$(basename $binary)" ]] && [[ "$rvm_benchmark_flag" -ne 1 ]] ; then
      if $rvm_scripts_path/match "$args" "\.rb$" ; then
        if [[ -z "$prefix" ]] ; then prefix="-S" ; fi
        if ! $rvm_scripts_path/match "$args" "$prefix" ; then
          args="$prefix $args"
        fi
      fi
      rvm_command="$binary $rvm_ruby_mode $rvm_ruby_require -I$load_path $args"
    else
      rvm_command="$binary $rvm_ruby_mode $args"
    fi
  fi

  if [[ ! -z "$rvm_json_flag" ]] || [[ ! -z "$rvm_yaml_flag" ]] || [[ ! -z "$rvm_summary_flag" ]] ; then
    \mkdir -p ./log/$rvm_ruby_string/
    \touch ./log/$rvm_ruby_string/$action.log ./log/$rvm_ruby_string/$action.error.log
    eval "$rvm_command" >> ./log/$rvm_ruby_string/$action.log 2>> ./log/$rvm_ruby_string/$action.error.log
  else
    if [[ "$rvm_verbose_flag" != "0" ]] ; then
      current_env="$(__rvm_environment_identifier)"
      if [[ "$current_env" != "$current_set_ruby" ]]; then
        current_env="$current_set_ruby ($current_env)"
      fi
      $rvm_scripts_path/log "info" "$current_env: $(ruby -v $rvm_ruby_mode | \tr "\n" ' ')\n"
      unset current_env
    fi
    eval "$rvm_command"
  fi
  result=$?

  string=$(basename $rvm_ruby_gem_home)
  if [[ $result -eq 0 ]]; then
    eval "successes=(${successes[*]} $string)"
  else
    eval "errors=(${errors[*]} $string)"
  fi
  eval "rubies=(${rubies[*]} $string)"
  eval "statuses=(${statuses[*]} $result)"
  unset string
  __rvm_unset_ruby_variables
}

# Output the summary in a human readable format.
__rvm_summary() {
  export successes errors statuses
  summary="\nSummary:\n\n"
  if [[ ${#successes[*]} -gt 0 ]] ; then
    summary="$summary \033[0;32m${#successes[*]} successful: $(echo "${successes[*]}" | sed 's# #, #g')\033[0m\n"
  fi
  if [[ ${#errors[*]} -gt 0 ]] ; then
    summary="$summary \033[0;31m${#errors[*]} errors: $(echo "${errors[*]}" | sed 's# #, #g')\033[0m\n"
  fi
  total=${#rubies[*]}
  if [[ ! -z "$ZSH_VERSION" ]] ; then array_start=1 ; else array_start=0 ; fi
  printf "$summary" | tee -a log/summary.log
  return ${#errors[*]}
}

# Output the summary in a yaml format.
__rvm_yaml() {
  export successes errors statuses
  yaml="totals:\n  rubies: ${#rubies[*]}\n  successes: ${#successes[*]}\n  errors: ${#errors[*]}\nsuccesses:"
  for var in ${successes[*]} ; do yaml="$yaml\n  - $var" ; done
  yaml="$yaml\nerrors:"
  for var in ${errors[*]} ; do yaml="$yaml\n  - $var" ; done
  yaml="$yaml\nrubies:"
  total=${#rubies[*]}
  if [[ ! -z "$ZSH_VERSION" ]] ; then array_start=1 ; else array_start=0 ; fi
  for (( index = $array_start ; index < $total + $array_start ; index++ )) ; do
    if [[ ! -z "$rvm_debug_flag" ]] ; then
      $rvm_scripts_path/log "debug" "${rubies[$index]}: ${statuses[$index]}"
    fi
    yaml="$yaml\n  \"${rubies[$index]}\": ${statuses[$index]}"
  done ; unset index array_start
  \mkdir -p log
  printf "$yaml" | tee -a log/summary.yaml

  return ${#errors[*]}
}

# Output the summary in a json format.
__rvm_json() {
  json="{"
  json="$json\n  \"totals\": { \"rubies\": ${#rubies[*]}, \"successes\": ${#successes[*]}, \"errors\": ${#errors[*]} },"
  json="$json\n  \"successful\": [$(echo \"${successes[*]}\" | sed 's# #", "#g' | sed 's#\"\"##')],"
  json="$json\n  \"errors\": [$(echo \"${errors[*]}\" | sed 's# #", "#g' | sed 's#\"\"##')],"
  json="$json\n  \"rubies\": {"

  total=${#rubies[*]}
  if [[ ! -z "$ZSH_VERSION" ]] ; then array_start=1 ; else array_start=0 ; fi
  for (( index = $array_start ; index < $total + $array_start ; index++ )) ; do
    if [[ ! -z "$rvm_debug_flag" ]] ; then
      $rvm_scripts_path/log "debug" "${rubies[$index]}: ${statuses[$index]}"
    fi
    json="$json\n    {\"${rubies[$index]}\": ${statuses[$index]}}"
    if (( $index + 1 < $total + $array_start )) ; then json="$json,  " ; fi
  done ; unset index array_start
  json="$json\n  }\n}"

  \mkdir -p log
  printf "$json" | tee -a log/summary.json

  return ${#errors[*]}
}

# Loop over a set or all rvm installed rubies to perform some action.
# Record the results and report based on CLI selections.

rubies=() ; successes=() ; errors=() ; statuses=()

rvm_ruby_strings="$(__rvm_expand_ruby_string "$rvm_ruby_strings")"

# Check for a single ruby && exec if present.
__rvm_attempt_single_exec

for current_set_ruby in ${rvm_ruby_strings} ; do
  __rvm_ruby_do
done; unset current_set_ruby

if [[ ! -z "$rvm_summary_flag" ]] ; then __rvm_summary ; fi
if [[ ! -z "$rvm_yaml_flag" ]]    ; then __rvm_yaml    ; fi
if [[ ! -z "$rvm_json_flag" ]]    ; then __rvm_json    ; fi

rvm_hook="after_do" ; source $rvm_scripts_path/hook

exit ${#errors[*]}