-module(olive@config).
-compile([no_auto_import, nowarn_unused_vars, nowarn_unused_function, nowarn_nomatch]).

-export([read_config/1]).
-export_type([config/0]).

-type config() :: {config,
        integer(),
        integer(),
        binary(),
        binary(),
        binary(),
        list(binary())}.

-file("src/olive/config.gleam", 94).
-spec get_root(binary()) -> {ok, binary()} | {error, binary()}.
get_root(Path) ->
    case simplifile_erl:is_file(filepath:join(Path, <<"gleam.toml"/utf8>>)) of
        {ok, true} ->
            {ok, Path};

        {ok, false} ->
            case filepath:expand(filepath:join(Path, <<".."/utf8>>)) of
                {ok, Path@1} ->
                    get_root(Path@1);

                {error, _} ->
                    {error,
                        <<"Could not locate root dir where gleam.toml is"/utf8>>}
            end;

        {error, _} ->
            case filepath:expand(filepath:join(Path, <<".."/utf8>>)) of
                {ok, Path@1} ->
                    get_root(Path@1);

                {error, _} ->
                    {error,
                        <<"Could not locate root dir where gleam.toml is"/utf8>>}
            end
    end.

-file("src/olive/config.gleam", 106).
-spec get_full_path(binary(), binary()) -> binary().
get_full_path(Root, Path) ->
    _assert_subject = begin
        _pipe = filepath:join(Root, Path),
        _pipe@1 = filepath:join(_pipe, <<"src"/utf8>>),
        filepath:expand(_pipe@1)
    end,
    {ok, Full_path} = case _assert_subject of
        {ok, _} -> _assert_subject;
        _assert_fail ->
            erlang:error(#{gleam_error => let_assert,
                        message => <<"Pattern match failed, no pattern matched the value."/utf8>>,
                        value => _assert_fail,
                        module => <<"olive/config"/utf8>>,
                        function => <<"get_full_path"/utf8>>,
                        line => 109})
    end,
    Full_path.

-file("src/olive/config.gleam", 128).
-spec cwd_error_to_string(gleam@erlang@atom:atom_()) -> binary().
cwd_error_to_string(Posix_error) ->
    <<"Could not get current working dir, error is: "/utf8,
        (erlang:atom_to_binary(Posix_error))/binary>>.

-file("src/olive/config.gleam", 88).
-spec get_gleam_toml_path() -> {ok, binary()} | {error, binary()}.
get_gleam_toml_path() ->
    _pipe = olive_ffi:get_cwd(),
    _pipe@1 = gleam@result:map_error(_pipe, fun cwd_error_to_string/1),
    gleam@result:then(_pipe@1, fun get_root/1).

-file("src/olive/config.gleam", 132).
-spec simplifile_error_to_string(simplifile:file_error()) -> binary().
simplifile_error_to_string(Err) ->
    <<"Could not read gleam.toml: "/utf8,
        (simplifile:describe_error(Err))/binary>>.

-file("src/olive/config.gleam", 136).
-spec tom_error_to_string(tom:parse_error()) -> binary().
tom_error_to_string(Parse_error) ->
    case Parse_error of
        {key_already_in_use, Keys} ->
            <<"Could not parse gleam.toml: Key already in use: "/utf8,
                (gleam@string:join(Keys, <<", "/utf8>>))/binary>>;

        {unexpected, Char, _} ->
            <<"Could not parse gleam.toml: Unexpected character: "/utf8,
                Char/binary>>
    end.

-file("src/olive/config.gleam", 116).
-spec read_gleam_toml(binary()) -> {ok, gleam@dict:dict(binary(), tom:toml())} |
    {error, binary()}.
read_gleam_toml(Path) ->
    _pipe = filepath:join(Path, <<"gleam.toml"/utf8>>),
    _pipe@1 = simplifile:read(_pipe),
    _pipe@2 = gleam@result:map_error(_pipe@1, fun simplifile_error_to_string/1),
    gleam@result:'try'(_pipe@2, fun(Content) -> _pipe@3 = tom:parse(Content),
            gleam@result:map_error(_pipe@3, fun tom_error_to_string/1) end).

-file("src/olive/config.gleam", 146).
-spec tom_field_error_to_string(tom:get_error()) -> binary().
tom_field_error_to_string(Parse_error) ->
    case Parse_error of
        {not_found, Keys} ->
            <<<<"Could not find "/utf8,
                    (gleam@string:join(Keys, <<"."/utf8>>))/binary>>/binary,
                " in gleam.toml"/utf8>>;

        {wrong_type, Keys@1, Expected, Got} ->
            <<<<<<<<<<"Could not read "/utf8,
                                (gleam@string:join(Keys@1, <<"."/utf8>>))/binary>>/binary,
                            ". Expected "/utf8>>/binary,
                        Expected/binary>>/binary,
                    " but got "/utf8>>/binary,
                Got/binary>>
    end.

-file("src/olive/config.gleam", 61).
-spec read_project_name(gleam@dict:dict(binary(), tom:toml())) -> {ok, binary()} |
    {error, binary()}.
read_project_name(Toml) ->
    _pipe = tom:get_string(Toml, [<<"name"/utf8>>]),
    gleam@result:map_error(_pipe, fun tom_field_error_to_string/1).

-file("src/olive/config.gleam", 65).
-spec read_project_dependencies(gleam@dict:dict(binary(), tom:toml()), binary()) -> {ok,
        list(binary())} |
    {error, binary()}.
read_project_dependencies(Toml, Root) ->
    _pipe = tom:get_table(Toml, [<<"dependencies"/utf8>>]),
    _pipe@1 = gleam@result:map_error(_pipe, fun tom_field_error_to_string/1),
    gleam@result:map(_pipe@1, fun(Deps) -> _pipe@2 = Deps,
            gleam@dict:fold(
                _pipe@2,
                [filepath:join(Root, <<"src"/utf8>>)],
                fun(Acc, _, Value) -> case Value of
                        {inline_table, Table} ->
                            case gleam_stdlib:map_get(Table, <<"path"/utf8>>) of
                                {error, _} ->
                                    Acc;

                                {ok, {string, Path}} ->
                                    [get_full_path(Root, Path) | Acc];

                                {ok, _} ->
                                    Acc
                            end;

                        _ ->
                            Acc
                    end end
            ) end).

-file("src/olive/config.gleam", 33).
-spec read_config(olive@cli:cli_options()) -> {ok, config()} | {error, binary()}.
read_config(Options) ->
    olive@logging:notice(
        <<"Reading gleam.toml to retrieve project's name and directories to watch"/utf8>>
    ),
    gleam@result:'try'(
        get_gleam_toml_path(),
        fun(Root) ->
            gleam@result:'try'(
                read_gleam_toml(Root),
                fun(Gleam_toml) ->
                    gleam@result:'try'(
                        read_project_name(Gleam_toml),
                        fun(Name) ->
                            gleam@result:'try'(
                                read_project_dependencies(Gleam_toml, Root),
                                fun(Deps) ->
                                    olive@logging:notice(
                                        <<"Olive will watch for changes in those folders:\n"/utf8,
                                            (gleam@string:join(
                                                Deps,
                                                <<"\n"/utf8>>
                                            ))/binary>>
                                    ),
                                    {ok,
                                        {config,
                                            erlang:element(2, Options),
                                            erlang:element(3, Options),
                                            erlang:element(4, Options),
                                            Root,
                                            Name,
                                            Deps}}
                                end
                            )
                        end
                    )
                end
            )
        end
    ).