-module(ranged_int@builtin@uint).
-compile([no_auto_import, nowarn_unused_vars, nowarn_unused_function, nowarn_nomatch]).

-export([to_bigint/1, from_bigint/1, compare/2, add/2, subtract/2, multiply/2, divide/2, modulo/2, remainder/2, power/2, eject/1]).
-export_type([uint/0]).

-opaque uint() :: {uint, bigi:big_int()}.

-spec to_bigint(uint()) -> bigi:big_int().
to_bigint(Uint) ->
    erlang:element(2, Uint).

-spec from_bigint_unsafe(bigi:big_int()) -> uint().
from_bigint_unsafe(Value) ->
    {uint, Value}.

-spec limits() -> ranged_int@interface:limits(ranged_int@interface:non_overflowable()).
limits() ->
    ranged_int@interface:min_limit(bigi_ffi:from(0)).

-spec from_bigint(bigi:big_int()) -> {ok, uint()} |
    {error, ranged_int@utils:overflow()}.
from_bigint(Value) ->
    ranged_int@interface:from_bigint(
        Value,
        {interface, fun to_bigint/1, fun from_bigint_unsafe/1, fun limits/0}
    ).

-spec compare(uint(), uint()) -> gleam@order:order().
compare(A, B) ->
    ranged_int@interface:compare(
        A,
        B,
        {interface, fun to_bigint/1, fun from_bigint_unsafe/1, fun limits/0}
    ).

-spec add(uint(), bigi:big_int()) -> {ok, uint()} |
    {error, ranged_int@utils:overflow()}.
add(A, B) ->
    ranged_int@interface:math_op(
        A,
        B,
        {interface, fun to_bigint/1, fun from_bigint_unsafe/1, fun limits/0},
        fun bigi_ffi:add/2
    ).

-spec subtract(uint(), bigi:big_int()) -> {ok, uint()} |
    {error, ranged_int@utils:overflow()}.
subtract(A, B) ->
    ranged_int@interface:math_op(
        A,
        B,
        {interface, fun to_bigint/1, fun from_bigint_unsafe/1, fun limits/0},
        fun bigi_ffi:subtract/2
    ).

-spec multiply(uint(), bigi:big_int()) -> {ok, uint()} |
    {error, ranged_int@utils:overflow()}.
multiply(A, B) ->
    ranged_int@interface:math_op(
        A,
        B,
        {interface, fun to_bigint/1, fun from_bigint_unsafe/1, fun limits/0},
        fun bigi_ffi:multiply/2
    ).

-spec divide(uint(), bigi:big_int()) -> {ok, uint()} |
    {error, ranged_int@utils:overflow()}.
divide(A, B) ->
    ranged_int@interface:math_op(
        A,
        B,
        {interface, fun to_bigint/1, fun from_bigint_unsafe/1, fun limits/0},
        fun bigi_ffi:divide/2
    ).

-spec modulo(uint(), bigi:big_int()) -> {ok, uint()} |
    {error, ranged_int@utils:overflow()}.
modulo(A, B) ->
    ranged_int@interface:math_op(
        A,
        B,
        {interface, fun to_bigint/1, fun from_bigint_unsafe/1, fun limits/0},
        fun bigi_ffi:modulo/2
    ).

-spec remainder(uint(), bigi:big_int()) -> {ok, uint()} |
    {error, ranged_int@utils:overflow()}.
remainder(A, B) ->
    ranged_int@interface:math_op(
        A,
        B,
        {interface, fun to_bigint/1, fun from_bigint_unsafe/1, fun limits/0},
        fun bigi_ffi:remainder/2
    ).

-spec power(uint(), uint()) -> {ok, uint()} |
    {error, ranged_int@utils:overflow()}.
power(A, B) ->
    _assert_subject = ranged_int@interface:fallible_op(
        A,
        to_bigint(B),
        {interface, fun to_bigint/1, fun from_bigint_unsafe/1, fun limits/0},
        fun bigi_ffi:power/2
    ),
    {ok, Result} = case _assert_subject of
        {ok, _} -> _assert_subject;
        _assert_fail ->
            erlang:error(#{gleam_error => let_assert,
                        message => <<"Assertion pattern match failed"/utf8>>,
                        value => _assert_fail,
                        module => <<"ranged_int/builtin/uint"/utf8>>,
                        function => <<"power"/utf8>>,
                        line => 55})
    end,
    Result.

-spec eject({ok, uint()} | {error, ranged_int@utils:overflow()}) -> bigi:big_int().
eject(Op) ->
    ranged_int@interface:eject(
        Op,
        {interface, fun to_bigint/1, fun from_bigint_unsafe/1, fun limits/0}
    ).