class Bundler::CLI::Config::Base

def confirm(name)
  Bundler.ui.confirm "Settings for `#{name}` in order of priority. The top value will be used"
  show_pretty_values_for(name)
end

def confirm_all
  if @options[:parseable]
    thor.with_padding do
      Bundler.settings.all.each do |setting|
        val = Bundler.settings[setting]
        Bundler.ui.info "#{setting}=#{val}"
      end
    end
  else
    Bundler.ui.confirm "Settings are listed in order of priority. The top value will be used.\n"
    Bundler.settings.all.each do |setting|
      Bundler.ui.confirm setting
      show_pretty_values_for(setting)
      Bundler.ui.confirm ""
    end
  end
end

def explicit_scope?
  @explicit_scope
end

def initialize(options, name, value, thor)
  @options = options
  @name = name
  value = Array(value)
  @value = value.empty? ? nil : value.join(" ")
  @thor = thor
  validate_scope!
end

def inside_app?
  Bundler.root
  true
rescue GemfileNotFound
  false
end

def message
  locations = Bundler.settings.locations(name)
  if @options[:parseable]
    "#{name}=#{new_value}" if new_value
  elsif scope == "global"
    if !locations[:local].nil?
      "Your application has set #{name} to #{locations[:local].inspect}. " \
        "This will override the global value you are currently setting"
    elsif locations[:env]
      "You have a bundler environment variable for #{name} set to " \
        "#{locations[:env].inspect}. This will take precedence over the global value you are setting"
    elsif !locations[:global].nil? && locations[:global] != value
      "You are replacing the current global value of #{name}, which is currently " \
        "#{locations[:global].inspect}"
    end
  elsif scope == "local" && !locations[:local].nil? && locations[:local] != value
    "You are replacing the current local value of #{name}, which is currently " \
      "#{locations[:local].inspect}"
  end
end

def new_value
  pathname = Pathname.new(value)
  if name.start_with?("local.") && pathname.directory?
    pathname.expand_path.to_s
  else
    value
  end
end

def run
  unless name
    warn_unused_scope "Ignoring --#{scope}"
    confirm_all
    return
  end
  if options[:delete]
    if !explicit_scope? || scope != "global"
      Bundler.settings.set_local(name, nil)
    end
    if !explicit_scope? || scope != "local"
      Bundler.settings.set_global(name, nil)
    end
    return
  end
  if value.nil?
    warn_unused_scope "Ignoring --#{scope} since no value to set was given"
    if options[:parseable]
      if value = Bundler.settings[name]
        Bundler.ui.info("#{name}=#{value}")
      end
      return
    end
    confirm(name)
    return
  end
  Bundler.ui.info(message) if message
  Bundler.settings.send("set_#{scope}", name, new_value)
end

def show_pretty_values_for(setting)
  thor.with_padding do
    Bundler.settings.pretty_values_for(setting).each do |line|
      Bundler.ui.info line
    end
  end
end

def validate_scope!
  @explicit_scope = true
  scopes = %w[global local].select {|s| options[s] }
  case scopes.size
  when 0
    @scope = inside_app? ? "local" : "global"
    @explicit_scope = false
  when 1
    @scope = scopes.first
  else
    raise InvalidOption,
      "The options #{scopes.join " and "} were specified. Please only use one of the switches at a time."
  end
end

def warn_unused_scope(msg)
  return unless explicit_scope?
  return if options[:parseable]
  Bundler.ui.warn(msg)
end