package game

import (
	"testing"

	"github.com/google/uuid"
	"github.com/stretchr/testify/assert"
)

func TestCommand_Spawn(t *testing.T) {
	world := NewWorld()
	a := uuid.New()

	spawnCommand := world.CommandSpawn(a)
	assert.NoError(t, world.Execute(spawnCommand), "Failed to execute spawn command")

	instance, ok := world.Instances[a]
	assert.True(t, ok, "No new instance in world")
	assert.Equal(t, a, instance.id, "New instance has incorrect id")
}

func TestCommand_Move(t *testing.T) {
	world := NewWorld()
	a := uuid.New()
	assert.NoError(t, world.Spawn(a), "Failed to spawn")

	pos := Vector{
		X: 1.0,
		Y: 2.0,
		Z: 3.0,
	}

	err := world.SetPosition(a, pos)
	assert.NoError(t, err, "Failed to set position for instance")

	move := Vector{
		X: 3.0,
		Y: 2.0,
		Z: 1.0,
	}

	// Try the move command
	moveCommand := world.CommandMove(a, move)
	assert.NoError(t, world.Execute(moveCommand), "Failed to execute move command")

	newpos, err := world.GetPosition(a)
	assert.NoError(t, err, "Failed to set position for instance")
	pos.Add(move)
	assert.Equal(t, pos, newpos, "Failed to correctly set position for instance")
}