// Copyright (c) 2017 PSForever
import org.specs2.mutable._
import net.psforever.newcodecs._
import net.psforever.types._
import scodec.bits._

class CodecTest extends Specification {

  "QuantizedDoubleCodec" should {
    val string_1 = hex"6E2D70"
    val string_2 = hex"000000"
    val string_3 = hex"B616"
    val string_4 = hex"857C"
    val string_5 = hex"5380"
    val string_6 = hex"FFFC"

    "decode" in {
      newcodecs.q_double(0.0, 8192.0, 20).decode(string_1.bits).require.value mustEqual 3674.859375
      newcodecs.q_double(0.0, 8192.0, 20).decode(string_2.bits).require.value mustEqual 0.0
      newcodecs.q_double(0.0, 1024.0, 16).decode(string_3.bits).require.value mustEqual 90.84375
      newcodecs.q_double(-256.0, 256.0, 14).decode(string_4.bits).require.value mustEqual -3.84375
      newcodecs.q_double(-256.0, 256.0, 14).decode(string_5.bits).require.value mustEqual 2.59375
      newcodecs.q_double(-256.0, 256.0, 14).decode(string_6.bits).require.value mustEqual 255.96875
    }

    "encode" in {
      newcodecs.q_double(0.0, 8192.0, 20).encode(3674.859375).require.bytes mustEqual string_1
      newcodecs.q_double(0.0, 8192.0, 20).encode(-1.23).require.bytes mustEqual string_2
      newcodecs.q_double(0.0, 1024.0, 16).encode(90.84375).require.bytes mustEqual string_3
      newcodecs.q_double(-256.0, 256.0, 14).encode(-3.84375).require.bytes mustEqual string_4
      newcodecs.q_double(-256.0, 256.0, 14).encode(2.59375).require.bytes mustEqual string_5
      newcodecs.q_double(-256.0, 256.0, 14).encode(257.0).require.bytes mustEqual string_6
    }
  }

  "Vector3" should {
    val string_pos = hex"6E2D762222B616"
    val string_vel = hex"857D4E0FFFC0"

    "decode position" in {
      Vector3.codec_pos.decode(string_pos.bits).require.value mustEqual Vector3(3674.859375f, 1092.7656f, 90.84375f)
    }

    "encode position" in {
      Vector3.codec_pos.encode(Vector3(3674.859375f, 1092.7656f, 90.84375f)).require.bytes mustEqual string_pos
    }

    "decode velocity" in {
      Vector3.codec_vel.decode(string_vel.bits).require.value mustEqual Vector3(-3.84375f, 2.59375f, 255.96875f)
    }

    "encode velocity" in {
      Vector3.codec_vel.encode(Vector3(-3.84375f, 2.59375f, 255.96875f)).require.bytes mustEqual string_vel
    }
  }
}