-module(rebar_prv_app_builder).

-behaviour(rebar_provider).

-export([init/1,
         do/1,
         build/2]).

-include("rebar.hrl").

-define(PROVIDER, compile).
-define(DEPS, [install_deps]).

%% ===================================================================
%% Public API
%% ===================================================================

-spec init(rebar_state:t()) -> {ok, rebar_state:t()}.
init(State) ->
    State1 = rebar_state:add_provider(State, #provider{name = ?PROVIDER,
                                                        provider_impl = ?MODULE,
                                                        bare = false,
                                                        deps = ?DEPS,
                                                        example = "rebar compile",
                                                        short_desc = "",
                                                        desc = "",
                                                        opts = []}),
    {ok, State1}.

-spec do(rebar_state:t()) -> {ok, rebar_state:t()} | relx:error().
do(State) ->
    Apps = rebar_state:apps_to_build(State),

    lists:foreach(fun(AppInfo) ->
                          ?INFO("Compiling ~s ~s~n", [rebar_app_info:name(AppInfo)
                                                     ,rebar_app_info:original_vsn(AppInfo)]),
                          _AppInfo1 = build(State, AppInfo)
                  end, Apps),

    %% DepsDir = get_deps_dir(Config1),
    %% LockDeps = lists:map(fun({Name, Vsn, Source}) ->
    %%                              Dir = get_deps_dir(DepsDir, Name),
    %%                              rebar_fetch:new(Dir, Name, Vsn, Source)
    %%                      end, rebar_state:deps(Config)),
    %% ok = file:write_file("./rebar.lock", io_lib:format("~p.~n", [LockDeps])),
    {ok, State}.

build(State, AppInfo) ->
    {ok, AppInfo1} = rebar_otp_app:compile(State, AppInfo),
    rebar_erlc_compiler:compile(State, rebar_app_info:dir(AppInfo1)),
    AppInfo1.

%% ===================================================================
%% Internal functions
%% ===================================================================