-module(startest@test_tree).
-compile([no_auto_import, nowarn_unused_vars, nowarn_unused_function, nowarn_nomatch]).
-define(FILEPATH, "src/startest/test_tree.gleam").
-export([all_tests/1, test_tree_decoder/0]).
-export_type([test_tree/0]).

-type test_tree() :: {suite, binary(), list(test_tree())} |
    {test, startest@test_case:test()}.

-file("src/startest/test_tree.gleam", 15).
-spec collect_all_tests(
    test_tree(),
    list(binary()),
    list({binary(), startest@test_case:test()})
) -> list({binary(), startest@test_case:test()}).
collect_all_tests(Tree, Path, Acc) ->
    case Tree of
        {suite, Name, Suite} ->
            _pipe = Suite,
            gleam@list:flat_map(
                _pipe,
                fun(_capture) ->
                    collect_all_tests(_capture, [Name | Path], Acc)
                end
            );

        {test, Test_case} ->
            Test_path = begin
                _pipe@1 = [erlang:element(2, Test_case) | Path],
                _pipe@2 = lists:reverse(_pipe@1),
                gleam@string:join(_pipe@2, <<" ❯ "/utf8>>)
            end,
            [{Test_path, Test_case} | Acc]
    end.

-file("src/startest/test_tree.gleam", 11).
-spec all_tests(test_tree()) -> list({binary(), startest@test_case:test()}).
all_tests(Tree) ->
    collect_all_tests(Tree, [], []).

-file("src/startest/test_tree.gleam", 36).
-spec test_tree_decoder() -> gleam@dynamic@decode:decoder(test_tree()).
test_tree_decoder() ->
    gleam@dynamic@decode:one_of(
        begin
            gleam@dynamic@decode:then(
                gleam@dynamic@decode:at(
                    [1],
                    {decoder, fun gleam@dynamic@decode:decode_string/1}
                ),
                fun(Name) ->
                    gleam@dynamic@decode:then(
                        gleam@dynamic@decode:at(
                            [2],
                            gleam@dynamic@decode:list(test_tree_decoder())
                        ),
                        fun(Suite) ->
                            gleam@dynamic@decode:success({suite, Name, Suite})
                        end
                    )
                end
            )
        end,
        [begin
                _pipe = gleam@dynamic@decode:at(
                    [1],
                    startest@test_case:test_decoder()
                ),
                gleam@dynamic@decode:map(
                    _pipe,
                    fun(Field@0) -> {test, Field@0} end
                )
            end]
    ).