package vertex_test

import (
	. "github.com/onsi/ginkgo/v2"
	. "github.com/onsi/gomega"

	"testing"

	"zworld/engine/renderapi/vertex"
	"zworld/plugins/math/vec3"
)

func TestVertex(t *testing.T) {
	RegisterFailHandler(Fail)
	RunSpecs(t, "renderapi/vertex")
}

var _ = Describe("Optimize", func() {
	It("correctly reduces the mesh", func() {
		vertices := []vertex.P{
			{vec3.Zero},
			{vec3.Zero},
			{vec3.New(1, 1, 1)},
			{vec3.Zero},
			{vec3.One},
		}
		indices := []uint32{
			4, 1, 2, 3, 0,
		}

		A := vertex.NewTriangles("test", vertices, indices)
		C := vertex.CollisionMesh(A)

		m := C.(vertex.MutableMesh[vertex.P, uint32])
		Expect(m.Vertices()).To(HaveLen(2))
		Expect(m.Vertices()).To(Equal([]vertex.P{{vec3.One}, {vec3.Zero}}))
		Expect(m.Indices()).To(Equal([]uint32{0, 1, 0, 1, 1}))
	})
})