-module(mad_erl).
%%-author('Sina Samavati').

-export([
  compile/5
]).


-define(COMPILE_OPTS(Inc, Ebin, Opts, Deps),
  [return_errors, return_warnings, warn_export_all, warn_export_all, warn_unused_import,
   {i, [Inc]}, {outdir, Ebin}] ++ Opts ++ Deps). %% warnings_as_errors


erl_to_beam(Bin, F) ->
  filename:join(Bin, filename:basename(F, ".erl") ++ ".beam").

compile(File, Inc, Bin, Opt, Deps) ->
  BeamFile = erl_to_beam(Bin, File),
  Compiled = mad_compile:is_compiled(BeamFile, File),
  case Compiled of
    false ->
      Opt1 = case {application:get_env(mad, debug, false), application:get_env(mad, warnings_as_errors, false)} of
        {true, true} -> [ debug_info, warnings_as_errors ];
        {true, false} -> [ debug_info ];
        {false, true} -> [ warnings_as_errors ];
        _ -> []
      end ++ Opt,
      Opts2 = ?COMPILE_OPTS(Inc, Bin, Opt1, Deps),
      mad:info("Compiling ~s~n", [File -- mad_utils:cwd()]),
      R1 = compile:file(File, Opts2),
      %mad:info("compile: ~p~n", [R1]),
      ret(R1);
    _ -> false
  end.


ret(error) -> mad:info("compile: error~n", []), true;
ret({error, X} = _R) ->
  %%mad:info("compile: ~p~n", [R]),
  lines(error, X);
ret({error, X, Y} = _R) ->
  %%mad:info("compile: ~p~n", [R]),
  lines(error, X),
  lines(error, Y);
ret({ok, _}) -> false;
ret({ok, _, []}) -> false;
ret({ok, _, X}) -> lines(warning, X), false;
ret({ok, _, X, _}) -> lines(warning, X), false.

lines(Tag,X) ->
  S = case file:get_cwd() of
    {ok, Cwd} -> erlang:length(Cwd);
    _ -> 0
  end,
  [[ mad:info("Line ~p: ~p ~p in ~p~n", [ L, Tag, R, lists:nthtail(S, F) ]) || {L, _, R} <- E ] || {F, E} <- X ],
  true.