module Magic
  module Api #:nodoc:
    extend FFI::Library

    lib_paths = Array(ENV["MAGIC_LIB"] || Dir["/{opt,usr}/{,local/}lib{,64}/libmagic.{1.dylib,so.1*}"])
    fallback_names = %w(libmagic.1.dylib libmagic.so.1 magic1.dll)
    ffi_lib(lib_paths + fallback_names)

    attach_function :magic_open, [:int], :pointer
    attach_function :magic_close, [:pointer], :void
    attach_function :magic_file, [:pointer, :string], :pointer
    # attach_function :magic_descriptor, [:pointer, :int], :string
    attach_function :magic_buffer, [:pointer, :pointer, :uint], :pointer
    attach_function :magic_error, [:pointer], :string
    attach_function :magic_setflags, [:pointer, :int], :int
    attach_function :magic_load, [:pointer, :string], :int
    # attach_function :magic_compile, [:pointer, :string], :int
    # attach_function :magic_check, [:pointer, :string], :int
    # attach_function :magic_errno, [:pointer], :int
  end
end