-module(gleeth@ethereum@contract).
-compile([no_auto_import, nowarn_unused_vars, nowarn_unused_function, nowarn_nomatch, inline]).
-define(FILEPATH, "src/gleeth/ethereum/contract.gleam").
-export([generate_function_selector/2, encode_parameters/1, build_call_data/2, parse_parameter/1]).

-file("src/gleeth/ethereum/contract.gleam", 88).
-spec parse_abi_type(binary()) -> {ok, gleeth@ethereum@abi@types:abi_type()} |
    {error, gleeth@rpc@types:gleeth_error()}.
parse_abi_type(Type_str) ->
    case string:lowercase(Type_str) of
        <<"uint256"/utf8>> ->
            {ok, {uint, 256}};

        <<"uint"/utf8>> ->
            {ok, {uint, 256}};

        <<"address"/utf8>> ->
            {ok, address};

        <<"string"/utf8>> ->
            {ok, string};

        <<"bool"/utf8>> ->
            {ok, bool};

        <<"boolean"/utf8>> ->
            {ok, bool};

        <<"bytes32"/utf8>> ->
            {ok, {fixed_bytes, 32}};

        _ ->
            {error,
                {parse_error,
                    <<"Unsupported parameter type: "/utf8, Type_str/binary>>}}
    end.

-file("src/gleeth/ethereum/contract.gleam", 119).
-spec parse_uint_value(binary()) -> {ok, gleeth@ethereum@abi@types:abi_value()} |
    {error, gleeth@ethereum@abi@types:abi_error()}.
parse_uint_value(Value) ->
    case gleam_stdlib:parse_int(Value) of
        {ok, N} ->
            {ok, {uint_value, N}};

        {error, _} ->
            case gleeth@utils@hex:to_int(Value) of
                {ok, N@1} ->
                    {ok, {uint_value, N@1}};

                {error, _} ->
                    {error,
                        {encode_error,
                            <<"Cannot parse uint value: "/utf8, Value/binary>>}}
            end
    end.

-file("src/gleeth/ethereum/contract.gleam", 135).
-spec parse_bool_value(binary()) -> {ok, gleeth@ethereum@abi@types:abi_value()} |
    {error, gleeth@ethereum@abi@types:abi_error()}.
parse_bool_value(Value) ->
    case string:lowercase(Value) of
        <<"true"/utf8>> ->
            {ok, {bool_value, true}};

        <<"1"/utf8>> ->
            {ok, {bool_value, true}};

        <<"false"/utf8>> ->
            {ok, {bool_value, false}};

        <<"0"/utf8>> ->
            {ok, {bool_value, false}};

        _ ->
            {error,
                {encode_error,
                    <<"Boolean must be 'true', 'false', '1', or '0'"/utf8>>}}
    end.

-file("src/gleeth/ethereum/contract.gleam", 175).
-spec make_zero_bytes_acc(integer(), bitstring()) -> bitstring().
make_zero_bytes_acc(N, Acc) ->
    case N =< 0 of
        true ->
            Acc;

        false ->
            make_zero_bytes_acc(N - 1, <<Acc/bitstring, 0:8>>)
    end.

-file("src/gleeth/ethereum/contract.gleam", 168).
-spec make_zero_bytes(integer()) -> bitstring().
make_zero_bytes(N) ->
    case N =< 0 of
        true ->
            <<>>;

        false ->
            make_zero_bytes_acc(N, <<>>)
    end.

-file("src/gleeth/ethereum/contract.gleam", 148).
-spec parse_bytes32_value(binary()) -> {ok,
        gleeth@ethereum@abi@types:abi_value()} |
    {error, gleeth@ethereum@abi@types:abi_error()}.
parse_bytes32_value(Value) ->
    case gleeth@utils@hex:decode(Value) of
        {ok, Bytes} ->
            Size = erlang:byte_size(Bytes),
            case Size =< 32 of
                true ->
                    Padding = make_zero_bytes(32 - Size),
                    {ok,
                        {fixed_bytes_value,
                            gleam_stdlib:bit_array_concat([Bytes, Padding])}};

                false ->
                    {error, {encode_error, <<"bytes32 value too long"/utf8>>}}
            end;

        {error, _} ->
            {error,
                {encode_error,
                    <<"Invalid hex for bytes32: "/utf8, Value/binary>>}}
    end.

-file("src/gleeth/ethereum/contract.gleam", 101).
-spec string_to_abi_value(gleeth@ethereum@abi@types:abi_type(), binary()) -> {ok,
        gleeth@ethereum@abi@types:abi_value()} |
    {error, gleeth@ethereum@abi@types:abi_error()}.
string_to_abi_value(Abi_type, Value) ->
    case Abi_type of
        {uint, _} ->
            parse_uint_value(Value);

        address ->
            {ok, {address_value, Value}};

        string ->
            {ok, {string_value, Value}};

        bool ->
            parse_bool_value(Value);

        {fixed_bytes, _} ->
            parse_bytes32_value(Value);

        _ ->
            {error,
                {encode_error,
                    <<"Unsupported ABI type for CLI parsing: "/utf8,
                        (gleeth@ethereum@abi@types:to_string(Abi_type))/binary>>}}
    end.

-file("src/gleeth/ethereum/contract.gleam", 182).
-spec abi_error_to_gleeth_error(gleeth@ethereum@abi@types:abi_error()) -> gleeth@rpc@types:gleeth_error().
abi_error_to_gleeth_error(Err) ->
    {abi_err, Err}.

-file("src/gleeth/ethereum/contract.gleam", 12).
-spec generate_function_selector(
    binary(),
    list(gleeth@ethereum@abi@types:abi_type())
) -> {ok, binary()} | {error, gleeth@rpc@types:gleeth_error()}.
generate_function_selector(Function_name, Param_types) ->
    case gleeth@ethereum@abi@encode:function_selector(
        Function_name,
        Param_types
    ) of
        {ok, Selector} ->
            {ok, gleeth@utils@hex:encode(Selector)};

        {error, Err} ->
            {error, abi_error_to_gleeth_error(Err)}
    end.

-file("src/gleeth/ethereum/contract.gleam", 23).
-spec encode_parameters(
    list({gleeth@ethereum@abi@types:abi_type(),
        gleeth@ethereum@abi@types:abi_value()})
) -> {ok, binary()} | {error, gleeth@rpc@types:gleeth_error()}.
encode_parameters(Parameters) ->
    case Parameters of
        [] ->
            {ok, <<""/utf8>>};

        Params ->
            case gleeth@ethereum@abi@encode:encode(Params) of
                {ok, Encoded} ->
                    {ok, string:lowercase(gleam_stdlib:base16_encode(Encoded))};

                {error, Err} ->
                    {error, abi_error_to_gleeth_error(Err)}
            end
    end.

-file("src/gleeth/ethereum/contract.gleam", 38).
-spec build_call_data(
    binary(),
    list({gleeth@ethereum@abi@types:abi_type(),
        gleeth@ethereum@abi@types:abi_value()})
) -> {ok, binary()} | {error, gleeth@rpc@types:gleeth_error()}.
build_call_data(Function_name, Parameters) ->
    Abi_type_list = gleam@list:map(
        Parameters,
        fun(P) -> erlang:element(1, P) end
    ),
    case gleeth@ethereum@abi@encode:function_selector(
        Function_name,
        Abi_type_list
    ) of
        {ok, Selector} ->
            case Parameters of
                [] ->
                    {ok, gleeth@utils@hex:encode(Selector)};

                _ ->
                    case gleeth@ethereum@abi@encode:encode(Parameters) of
                        {ok, Encoded} ->
                            Selector_hex = string:lowercase(
                                gleam_stdlib:base16_encode(Selector)
                            ),
                            Params_hex = string:lowercase(
                                gleam_stdlib:base16_encode(Encoded)
                            ),
                            {ok,
                                <<<<"0x"/utf8, Selector_hex/binary>>/binary,
                                    Params_hex/binary>>};

                        {error, Err} ->
                            {error, abi_error_to_gleeth_error(Err)}
                    end
            end;

        {error, Err@1} ->
            {error, abi_error_to_gleeth_error(Err@1)}
    end.

-file("src/gleeth/ethereum/contract.gleam", 68).
-spec parse_parameter(binary()) -> {ok,
        {gleeth@ethereum@abi@types:abi_type(),
            gleeth@ethereum@abi@types:abi_value()}} |
    {error, gleeth@rpc@types:gleeth_error()}.
parse_parameter(Param_str) ->
    case gleam@string:split(Param_str, <<":"/utf8>>) of
        [Type_str, Value] ->
            gleam@result:'try'(
                parse_abi_type(Type_str),
                fun(Abi_type) ->
                    gleam@result:'try'(
                        begin
                            _pipe = string_to_abi_value(Abi_type, Value),
                            gleam@result:map_error(
                                _pipe,
                                fun(E) -> abi_error_to_gleeth_error(E) end
                            )
                        end,
                        fun(Abi_value) -> {ok, {Abi_type, Abi_value}} end
                    )
                end
            );

        _ ->
            {error,
                {parse_error,
                    <<"Parameter must be in format 'type:value'"/utf8>>}}
    end.