import {
  BufferReader,
  BufferReaderCtor,
  BufferWriterCtor, BufferWriter,
  EncodingErrorCtor, StaticWriter,
  StaticWriterCtor,
  Struct, StructCtor, Encoding, Varint,
} from './types';

type ReadFn = (data: Buffer, off: number) => number;
type ReadnFn = (data: Buffer, off: number, len: number) => number;
type WriteFn = (data: Buffer, num: number, off: number) => number;
type WritenFn = (data: Buffer, num: number, off: number, len: number) => number;
type ReadvarFn = (data: Buffer, off: number) => Varint;
type WritecbFn = (data: Buffer, num: number, off: number) => number;

interface BufioEntry {
  encoding: Encoding,
  EncodingError: EncodingErrorCtor,
  BufferReader: BufferReaderCtor,
  BufferWriter: BufferWriterCtor,
  StaticWriter: StaticWriterCtor,
  Struct: StructCtor<Struct>,

  read(data: Buffer, zeroCopy?: boolean): BufferReader;

  write(size?: number | null): BufferWriter | StaticWriter;

  pool(size: number): StaticWriter;

  readU: ReadnFn,
  readU64: ReadFn,
  readU56: ReadFn,
  readU48: ReadFn,
  readU40: ReadFn,
  readU32: ReadFn,
  readU24: ReadFn,
  readU16: ReadFn,
  readU8: ReadFn,

  readUBE: ReadnFn,
  readU64BE: ReadFn,
  readU56BE: ReadFn,
  readU48BE: ReadFn,
  readU40BE: ReadFn,
  readU32BE: ReadFn,
  readU24BE: ReadFn,
  readU16BE: ReadFn,

  readI: ReadnFn,
  readI64: ReadFn,
  readI56: ReadFn,
  readI48: ReadFn,
  readI40: ReadFn,
  readI32: ReadFn,
  readI24: ReadFn,
  readI16: ReadFn,
  readI8: ReadFn,

  readIBE: ReadnFn,
  readI64BE: ReadFn,
  readI56BE: ReadFn,
  readI48BE: ReadFn,
  readI40BE: ReadFn,
  readI32BE: ReadFn,
  readI24BE: ReadFn,
  readI16BE: ReadFn,

  readFloat: ReadFn,
  readFloatBE: ReadFn,
  readDouble: ReadFn,
  readDoubleBE: ReadFn,

  writeU: WritenFn,
  writeU64: WriteFn,
  writeU56: WriteFn,
  writeU48: WriteFn,
  writeU40: WriteFn,
  writeU32: WriteFn,
  writeU24: WriteFn,
  writeU16: WriteFn,
  writeU8: WriteFn,

  writeUBE: WritenFn,
  writeU64BE: WriteFn,
  writeU56BE: WriteFn,
  writeU48BE: WriteFn,
  writeU40BE: WriteFn,
  writeU32BE: WriteFn,
  writeU24BE: WriteFn,
  writeU16BE: WriteFn,

  writeI: WritenFn,
  writeI64: WriteFn,
  writeI56: WriteFn,
  writeI48: WriteFn,
  writeI40: WriteFn,
  writeI32: WriteFn,
  writeI24: WriteFn,
  writeI16: WriteFn,
  writeI8: WriteFn,

  writeIBE: WritenFn,
  writeI64BE: WriteFn,
  writeI56BE: WriteFn,
  writeI48BE: WriteFn,
  writeI40BE: WriteFn,
  writeI32BE: WriteFn,
  writeI24BE: WriteFn,
  writeI16BE: WriteFn,

  writeFloat: WriteFn,
  writeFloatBE: WriteFn,
  writeDouble: WriteFn,
  writeDoubleBE: WriteFn,

  readVarint: ReadvarFn,
  writeVarint: WritecbFn,

  sizeVarint(num: number): number,

  readVarint2: ReadvarFn,
  writeVarint2: WritecbFn,

  sizeVarint2(num: number): number,

  sliceBytes(data: Buffer, off: number, size: number): Buffer,

  readBytes(data: Buffer, off: number, size: number): Buffer,

  writeBytes(dst: Buffer, value: Buffer, off: number): number,

  readString(data: Buffer, off: number, size: number, enc?: BufferEncoding | null): string,

  writeString(dst: Buffer, str: string, off: number, enc?: BufferEncoding | null): number,

  realloc(data: Buffer, size: number): Buffer,

  copy(data: Buffer): Buffer,

  concat(a: Buffer, b: Buffer): Buffer,

  sizeVarBytes(data: Buffer): number,

  sizeVarlen(len: number): number,

  sizeVarString(str: string, enc?: BufferEncoding | null): number,
}

export default <BufioEntry>require('bufio');
export * from './types';