-module(cel@interpreter@value).
-compile([no_auto_import, nowarn_unused_vars, nowarn_unused_function, nowarn_nomatch]).

-export([key_from_value/1, to_type/1]).
-export_type([key/0, value/0, type/0]).

-type key() :: {key_int, integer()} |
    {key_u_int, integer()} |
    {key_bool, boolean()} |
    {key_string, binary()}.

-type value() :: {list, list(value())} |
    {map, gleam@dict:dict(key(), value())} |
    {function, binary(), gleam@option:option(value())} |
    {int, integer()} |
    {u_int, integer()} |
    {float, float()} |
    {string, binary()} |
    {bytes, bitstring()} |
    {bool, boolean()} |
    null.

-type type() :: list_t |
    map_t |
    function_t |
    int_t |
    u_int_t |
    float_t |
    string_t |
    bytes_t |
    bool_t |
    null_t.

-file("/Users/jonas/src/personal/cel-gleam/src/cel/interpreter/value.gleam", 11).
-spec key_from_value(value()) -> {ok, key()} | {error, nil}.
key_from_value(Value) ->
    case Value of
        {bool, K} ->
            {ok, {key_bool, K}};

        {int, K@1} ->
            {ok, {key_int, K@1}};

        {u_int, K@2} ->
            {ok, {key_u_int, K@2}};

        {string, K@3} ->
            {ok, {key_string, K@3}};

        _ ->
            {error, nil}
    end.

-file("/Users/jonas/src/personal/cel-gleam/src/cel/interpreter/value.gleam", 34).
-spec to_type(value()) -> type().
to_type(Value) ->
    case Value of
        {bool, _} ->
            bool_t;

        {bytes, _} ->
            bytes_t;

        {float, _} ->
            float_t;

        {function, _, _} ->
            function_t;

        {int, _} ->
            int_t;

        {list, _} ->
            list_t;

        {map, _} ->
            map_t;

        null ->
            null_t;

        {string, _} ->
            string_t;

        {u_int, _} ->
            u_int_t
    end.