class Spring::CommandWrapper

def binstub
  Spring.application_root_path.join(binstub_name)
end

def binstub_name
  "bin/#{name}"
end

def call
  if command.respond_to?(:call)
    command.call
  else
    $0 = exec
    load exec
  end
end

def description
  if command.respond_to?(:description)
    command.description
  else
    "Runs the #{name} command"
  end
end

def env(args)
  if command.respond_to?(:env)
    command.env(args)
  end
end

def exec
  if binstub.exist?
    binstub.to_s
  else
    Gem.bin_path(gem_name, exec_name)
  end
end

def exec_name
  if command.respond_to?(:exec_name)
    command.exec_name
  else
    name
  end
end

def gem_name
  if command.respond_to?(:gem_name)
    command.gem_name
  else
    exec_name
  end
end

def initialize(name, command = nil)
  @name    = name
  @command = command
  @setup   = false
end

def setup
  if !setup? && command.respond_to?(:setup)
    command.setup
    @setup = true
    return true
  else
    @setup = true
    return false
  end
end

def setup?
  @setup
end