-module(rebar_dir_SUITE).

-export([all/0, init_per_testcase/2, end_per_testcase/2]).

-export([default_src_dirs/1, default_extra_src_dirs/1, default_all_src_dirs/1]).
-export([src_dirs/1, extra_src_dirs/1, all_src_dirs/1]).
-export([profile_src_dirs/1, profile_extra_src_dirs/1, profile_all_src_dirs/1]).
-export([retarget_path/1, alt_base_dir_abs/1, alt_base_dir_rel/1]).
-export([global_cache_dir/1, default_global_cache_dir/1, overwrite_default_global_cache_dir/1]).

-include_lib("common_test/include/ct.hrl").
-include_lib("eunit/include/eunit.hrl").
-include_lib("kernel/include/file.hrl").


all() -> [default_src_dirs, default_extra_src_dirs, default_all_src_dirs,
          src_dirs, extra_src_dirs, all_src_dirs,
          profile_src_dirs, profile_extra_src_dirs, profile_all_src_dirs,
          retarget_path, alt_base_dir_abs, alt_base_dir_rel, global_cache_dir,
          default_global_cache_dir, overwrite_default_global_cache_dir].

init_per_testcase(default_global_cache_dir, Config) ->
    [{apps, AppsDir}, {checkouts, CheckoutsDir}, {state, _State} | Config] = rebar_test_utils:init_rebar_state(Config),
    NewState = rebar_state:new([{base_dir, filename:join([AppsDir, "_build"])}
                            ,{root_dir, AppsDir}]),
    [{apps, AppsDir}, {checkouts, CheckoutsDir}, {state, NewState} | Config];
init_per_testcase(overwrite_default_global_cache_dir, Config) ->
    os:putenv("REBAR_CACHE_DIR", ?config(priv_dir, Config)),
    [{apps, AppsDir}, {checkouts, CheckoutsDir}, {state, _State} | Config] = rebar_test_utils:init_rebar_state(Config),
    NewState = rebar_state:new([{base_dir, filename:join([AppsDir, "_build"])}
                            ,{root_dir, AppsDir}]),
    [{apps, AppsDir}, {checkouts, CheckoutsDir}, {state, NewState} | Config];
init_per_testcase(_, Config) ->
    C = rebar_test_utils:init_rebar_state(Config),
    AppDir = ?config(apps, C),

    Name1 = rebar_test_utils:create_random_name("app1_"),
    Vsn1 = rebar_test_utils:create_random_vsn(),
    rebar_test_utils:create_app(filename:join([AppDir,"apps",Name1]), Name1, Vsn1, [kernel, stdlib]),

    Name2 = rebar_test_utils:create_random_name("app2_"),
    Vsn2 = rebar_test_utils:create_random_vsn(),
    rebar_test_utils:create_app(filename:join([AppDir,"apps",Name2]), Name2, Vsn2, [kernel, stdlib]),

    [{app_one, Name1}, {app_two, Name2}] ++ C.

end_per_testcase(_, _Config) -> ok.

default_src_dirs(Config) ->
    {ok, State} = rebar_test_utils:run_and_check(Config, [], ["compile"], return),

    [] = rebar_dir:src_dirs(rebar_state:opts(State)),
    ["src"] = rebar_dir:src_dirs(rebar_state:opts(State), ["src"]).

default_extra_src_dirs(Config) ->
    {ok, State} = rebar_test_utils:run_and_check(Config, [], ["compile"], return),

    [] = rebar_dir:extra_src_dirs(rebar_state:opts(State)),
    ["src"] = rebar_dir:extra_src_dirs(rebar_state:opts(State), ["src"]).

default_all_src_dirs(Config) ->
    {ok, State} = rebar_test_utils:run_and_check(Config, [], ["compile"], return),

    [] = rebar_dir:all_src_dirs(rebar_state:opts(State)),
    ["src", "test"] = rebar_dir:all_src_dirs(rebar_state:opts(State), ["src"], ["test"]).

src_dirs(Config) ->
    RebarConfig = [{erl_opts, [{src_dirs, ["foo", "bar", "baz"]}]}],
    {ok, State} = rebar_test_utils:run_and_check(Config, RebarConfig, ["compile"], return),

    ["bar", "baz", "foo"] = rebar_dir:src_dirs(rebar_state:opts(State)).

extra_src_dirs(Config) ->
    RebarConfig = [{erl_opts, [{extra_src_dirs, ["foo", "bar", "baz"]}]}],
    {ok, State} = rebar_test_utils:run_and_check(Config, RebarConfig, ["compile"], return),

    ["bar", "baz", "foo"] = rebar_dir:extra_src_dirs(rebar_state:opts(State)).

all_src_dirs(Config) ->
    RebarConfig = [{erl_opts, [{src_dirs, ["foo", "bar"]}, {extra_src_dirs, ["baz", "qux"]}]}],
    {ok, State} = rebar_test_utils:run_and_check(Config, RebarConfig, ["compile"], return),

    ["bar", "baz", "foo", "qux"] = rebar_dir:all_src_dirs(rebar_state:opts(State)).

profile_src_dirs(Config) ->
    RebarConfig = [
        {erl_opts, [{src_dirs, ["foo", "bar"]}]},
        {profiles, [
            {more, [{erl_opts, [{src_dirs, ["baz", "qux"]}]}]}
        ]}
    ],
    {ok, State} = rebar_test_utils:run_and_check(Config, RebarConfig, ["as", "more", "compile"], return),

    R = lists:sort(["foo", "bar", "baz", "qux"]),
    R = rebar_dir:src_dirs(rebar_state:opts(State)).

profile_extra_src_dirs(Config) ->
    RebarConfig = [
        {erl_opts, [{extra_src_dirs, ["foo", "bar"]}]},
        {profiles, [
            {more, [{erl_opts, [{extra_src_dirs, ["baz", "qux"]}]}]}
        ]}
    ],
    {ok, State} = rebar_test_utils:run_and_check(Config, RebarConfig, ["as", "more", "compile"], return),

    R = lists:sort(["foo", "bar", "baz", "qux"]),
    R = rebar_dir:extra_src_dirs(rebar_state:opts(State)).

profile_all_src_dirs(Config) ->
    RebarConfig = [
        {erl_opts, [{src_dirs, ["foo"]}, {extra_src_dirs, ["bar"]}]},
        {profiles, [
            {more, [{erl_opts, [{src_dirs, ["baz"]}, {extra_src_dirs, ["qux"]}]}]}
        ]}
    ],
    {ok, State} = rebar_test_utils:run_and_check(Config, RebarConfig, ["as", "more", "compile"], return),

    R = lists:sort(["foo", "bar", "baz", "qux"]),
    R = rebar_dir:all_src_dirs(rebar_state:opts(State)).

retarget_path(Config) ->
    {ok, State} = rebar_test_utils:run_and_check(Config, [], ["compile"], return),

    BaseDir = rebar_dir:base_dir(State),

    Name1 = ?config(app_one, Config),
    Name2 = ?config(app_two, Config),

    ?assertEqual(filename:join([BaseDir, "lib", Name1, "test"]),
                 rebar_dir:retarget_path(State, filename:join([rebar_dir:root_dir(State), "apps", Name1, "test"]))),
    ?assertEqual(filename:join([BaseDir, "lib", Name2, "test"]),
                 rebar_dir:retarget_path(State, filename:join([rebar_dir:root_dir(State), "apps", Name2, "test"]))),
    ?assertEqual(filename:join([BaseDir, "lib", Name1, "more_test"]),
                 rebar_dir:retarget_path(State, filename:join([rebar_dir:root_dir(State), "apps", Name1, "more_test"]))),
    ?assertEqual(filename:join([BaseDir, "test"]),
                 rebar_dir:retarget_path(State, filename:join([rebar_dir:root_dir(State), "test"]))),
    ?assertEqual(filename:join([BaseDir, "some_other_dir"]),
                 rebar_dir:retarget_path(State, filename:join([rebar_dir:root_dir(State), "some_other_dir"]))),
    ?assertEqual("/somewhere/outside/the/project",
                 rebar_dir:retarget_path(State, "/somewhere/outside/the/project")).

alt_base_dir_abs(Config) ->
    AltName = lists:flatten(io_lib:format("~p", [os:timestamp()])),
    AltBaseDir = filename:join(?config(priv_dir, Config), AltName),
    RebarConfig = [{base_dir, AltBaseDir}],
    {ok, State} = rebar_test_utils:run_and_check(Config, RebarConfig, ["compile"], return),

    BaseDir = rebar_dir:base_dir(State),
    ?assertEqual(filename:join(AltBaseDir, "default"), BaseDir),

    Name1 = ?config(app_one, Config),
    Name2 = ?config(app_two, Config),

    ?assert(filelib:is_dir(filename:join([BaseDir, "lib", Name1, "ebin"]))),
    ?assert(filelib:is_file(filename:join([BaseDir, "lib", Name1, "ebin", Name1++".app"]))),
    ?assert(filelib:is_file(filename:join([BaseDir, "lib", Name1, "ebin", Name1++".beam"]))),
    ?assert(filelib:is_dir(filename:join([BaseDir, "lib", Name2, "ebin"]))),
    ?assert(filelib:is_file(filename:join([BaseDir, "lib", Name2, "ebin", Name2++".app"]))),
    ?assert(filelib:is_file(filename:join([BaseDir, "lib", Name2, "ebin", Name2++".beam"]))).

alt_base_dir_rel(Config) ->
    AltName = lists:flatten(io_lib:format("~p", [os:timestamp()])),
    AltBaseDir = filename:join("..", AltName),
    RebarConfig = [{base_dir, AltBaseDir}],
    {ok, State} = rebar_test_utils:run_and_check(Config, RebarConfig, ["compile"], return),

    BaseDir = rebar_dir:base_dir(State),

    Name1 = ?config(app_one, Config),
    Name2 = ?config(app_two, Config),

    ?assert(filelib:is_dir(filename:join([BaseDir, "lib", Name1, "ebin"]))),
    ?assert(filelib:is_file(filename:join([BaseDir, "lib", Name1, "ebin", Name1++".app"]))),
    ?assert(filelib:is_file(filename:join([BaseDir, "lib", Name1, "ebin", Name1++".beam"]))),
    ?assert(filelib:is_dir(filename:join([BaseDir, "lib", Name2, "ebin"]))),
    ?assert(filelib:is_file(filename:join([BaseDir, "lib", Name2, "ebin", Name2++".app"]))),
    ?assert(filelib:is_file(filename:join([BaseDir, "lib", Name2, "ebin", Name2++".beam"]))).

global_cache_dir(Config) ->
    RebarConfig = [{erl_opts, []}],
    {ok, State} = rebar_test_utils:run_and_check(Config, RebarConfig, ["compile"], return),
    DataDir = ?config(priv_dir, Config),
    Expected = filename:join([DataDir, "cache"]),
    ?assertEqual(Expected, rebar_dir:global_cache_dir(rebar_state:opts(State))).

default_global_cache_dir(Config) ->
    RebarConfig = [{erl_opts, []}],
    {ok, State} = rebar_test_utils:run_and_check(Config, RebarConfig, ["compile"], return),
    Expected = filename:join([rebar_dir:home_dir(), ".cache", "rebar3"]),
    ?assertEqual(Expected, rebar_dir:global_cache_dir(rebar_state:opts(State))).

overwrite_default_global_cache_dir(Config) ->
    RebarConfig = [{erl_opts, []}],
    {ok, State} = rebar_test_utils:run_and_check(Config, RebarConfig, ["compile"], return),
    Expected = ?config(priv_dir, Config),
    ?assertEqual(Expected, rebar_dir:global_cache_dir(rebar_state:opts(State))).