import { BigInt } from "as-bigint"

// generic constructor supports string and all native integer types
const generic: BigInt = BigInt.from(42);
// read BigInt from string
const a: BigInt = BigInt.fromString("19374529734987892634530927528739060327972904713094389147895891798347509179347517");
// fromString and toString methods optionally take a radix argument
const b: BigInt = BigInt.fromString("9F59E5Ed123C10D57E92629612511b14628D2799", 16);
// for hex strings, a radix argument is not required if value is prefixed by 0x (or -0x for negative numbers)
const fromHex: BigInt = BigInt.fromString("0x9F59E5Ed123C10D57E92629612511b14628D2799");

// arithmetic (operator overloads: +, -, *, /, %, **)
const sum: BigInt = a.add(b);
const difference: BigInt = a.sub(b);
const product: BigInt = a.mul(b);
const quotient: BigInt = a.div(b);
const remainder: BigInt = a.mod(b);
const exponential: BigInt = a.pow(3);
const squared: BigInt = a.square();
const squareRoot: BigInt = a.sqrt();
const roundedQuotient: BigInt = a.roundedDiv(b);

// faster operations when right-side variable is a 32 bit unsigned integer:
const c: u32 = 1234;
const intSum: BigInt = a.addInt(c);
const intDifference: BigInt = a.subInt(c);
const intProduct: BigInt = a.mulInt(c);
const intQuotient: BigInt = a.divInt(c);
const intRemainder: BigInt = a.modInt(c);
const intRoundedQuotient: BigInt = a.roundedDivInt(c);

// fast multiply and divide by 2 or power of 2
const mulByTwo: BigInt = a.mul2();
const mulByEight: BigInt = a.mulPowTwo(3);
const divBuTwo: BigInt = a.div2();
const divBySixteen: BigInt = a.divPowTwo(4);

// signed arithmetic bit shifts (operator overloads: <<, >>)
const shiftLeft3bits: BigInt = a.leftShift(3);
const shiftRight4bits: BigInt = a.rightShift(4);

// bitwise operations (operator overloads: ~, &, |, ^)
const not: BigInt = BigInt.bitwiseNot(bigIntA);
const and: BigInt = BigInt.bitwiseAnd(bigIntA, bigIntB);
const or: BigInt = BigInt.bitwiseOr(bigIntA, bigIntB);
const xor: BigInt = BigInt.bitwiseXor(bigIntA, bigIntB);

// comparison operations (operator overloads: ==, !=, <, <=, >, >=)
const isEqual: boolean = a.eq(b);
const isNotEqual: boolean = a.ne(b);
const isLessThan: boolean = a.lt(b);
const isLessThanOrEqualTo: boolean = a.lte(b);
const isGreaterThan: boolean = a.gt(b);
const isGreaterThanOrEqualTo: boolean = a.gte(b);

// binary arithmetic, comparison, and bitwise operators also have static implementations
const staticProduct: BigInt = BigInt.mul(a, b);
const staticIsEqual: boolean = BigInt.eq(a, b);
const staticAnd: boolean = BigInt.bitwiseAnd(a, b);

// instantiate new copy, absolute value, or opposite
const sameNumber: BigInt = a.copy();
const positiveNumber: BigInt = a.abs();
const oppositeSign: BigInt = a.opposite();

// convenience functions
const sizeOfNumber: i32 = a.countBits();
const isZeroNumber: boolean = a.isZero();
const zero: BigInt = BigInt.ZERO;
const one: BigInt = BigInt.ONE;
const negOne: BigInt = BigInt.NEG_ONE;

// even faster constructors for small numbers (max values shown here)
const verySmall: BigInt = BigInt.fromUInt16(65535);
const verySmallSigned: BigInt = BigInt.fromInt16(-65535);
const prettySmall: BigInt = BigInt.fromUInt32(4294967295);
const prettySmallSigned: BigInt = BigInt.fromInt32(-4294967295);
const stillSmall: BigInt = BigInt.fromUInt64(18446744073709551615);
const stillSmallSigned: BigInt = BigInt.fromInt64(-18446744073709551615);

// output to integers
const myInt32: i32 = BigInt.toInt32();
const myInt64: i64 = BigInt.toInt64();
const myUInt32: u32 = BigInt.toUInt32();
const myUInt64: u64 = BigInt.toUInt64();