-module(diced).
-compile([no_auto_import, nowarn_unused_vars, nowarn_unused_function, nowarn_nomatch]).

-export([dice_from_string/1]).
-export_type([roll_variant/0, dice/0, dice_error/0]).

-type roll_variant() :: advantage | disadvantage | normal.

-type dice() :: {dice, integer(), integer(), roll_variant()}.

-type dice_error() :: invalid_amount | invalid_string | invalid_value.

-file("C:\\Users\\isaac\\Projects\\sheetr\\diced\\src\\diced.gleam", 28).
-spec parse_amount(binary()) -> {ok, integer()} | {error, dice_error()}.
parse_amount(Amount) ->
    case Amount of
        <<""/utf8>> ->
            {ok, 1};

        _ ->
            _pipe = Amount,
            _pipe@1 = gleam_stdlib:parse_int(_pipe),
            gleam@result:replace_error(_pipe@1, invalid_amount)
    end.

-file("C:\\Users\\isaac\\Projects\\sheetr\\diced\\src\\diced.gleam", 35).
-spec parse_value(binary()) -> {ok, {integer(), roll_variant()}} |
    {error, dice_error()}.
parse_value(Value) ->
    Variant = normal,
    {Value@1, Variant@1} = case begin
        _pipe = Value,
        gleam_stdlib:string_ends_with(_pipe, <<"kh"/utf8>>)
    end of
        true ->
            {begin
                    _pipe@1 = Value,
                    gleam@string:drop_end(_pipe@1, 2)
                end,
                advantage};

        false ->
            {Value, Variant}
    end,
    {Value@2, Variant@2} = case begin
        _pipe@2 = Value@1,
        gleam_stdlib:string_ends_with(_pipe@2, <<"kl"/utf8>>)
    end of
        true ->
            {begin
                    _pipe@3 = Value@1,
                    gleam@string:drop_end(_pipe@3, 2)
                end,
                disadvantage};

        false ->
            {Value@1, Variant@1}
    end,
    case begin
        _pipe@4 = Value@2,
        gleam_stdlib:parse_int(_pipe@4)
    end of
        {ok, Num} ->
            {ok, {Num, Variant@2}};

        _ ->
            {error, invalid_value}
    end.

-file("C:\\Users\\isaac\\Projects\\sheetr\\diced\\src\\diced.gleam", 52).
-spec split_dice(binary()) -> {ok, {binary(), binary()}} | {error, dice_error()}.
split_dice(String) ->
    case begin
        _pipe = String,
        gleam_stdlib:parse_int(_pipe)
    end of
        {ok, _} ->
            {ok, {String, String}};

        _ ->
            _pipe@1 = String,
            _pipe@2 = gleam@string:split_once(_pipe@1, <<"d"/utf8>>),
            gleam@result:replace_error(_pipe@2, invalid_string)
    end.

-file("C:\\Users\\isaac\\Projects\\sheetr\\diced\\src\\diced.gleam", 21).
-spec dice_from_string(binary()) -> {ok, dice()} | {error, dice_error()}.
dice_from_string(String) ->
    gleam@result:'try'(
        split_dice(String),
        fun(_use0) ->
            {Amount_string, Value_string} = _use0,
            gleam@result:'try'(
                parse_amount(Amount_string),
                fun(Amount) ->
                    gleam@result:'try'(
                        parse_value(Value_string),
                        fun(_use0@1) ->
                            {Value, Variant} = _use0@1,
                            {ok, {dice, Amount, Value, Variant}}
                        end
                    )
                end
            )
        end
    ).