-module(rebar3_lfe_prv_clean_cache).

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

-include("rebar3_lfe.hrl").

-define(PROVIDER, 'clean-cache').
-define(DEPS, [{default, clean}]).

%% =============================================================================
%% Plugin API
%% =============================================================================

init(State) ->
  Description = "Remove the project's cache directories",
  Provider = providers:create([
      {namespace,  ?NAMESPACE},
      {name,       ?PROVIDER},
      {module,     ?MODULE},
      {bare,       true},
      {deps,       ?DEPS},
      {example,    "rebar3 lfe clean-cache"},
      {opts,       []},
      {short_desc, Description},
      {desc,       info(Description)}
  ]),
  {ok, rebar_state:add_provider(State, Provider)}.

do(State) ->
    rebar_paths:set_paths([deps, plugins], State),
    rebar3_lfe_clean:apps_cache(State),
    {ok, State}.

format_error(Reason) ->
    io_lib:format("~p", [Reason]).

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

info(Description) ->
    io_lib:format(
        "~n~s~n"
        "~n"
        "This deletes the project's entries in the local and global plugins~n"
        "and/or lib directories. It also deletes the rebar3_lfe plugin~n"
        "caches.~n",
        [Description]).