package core

import (
	"context"
	"testing"

	"github.com/bnema/neferwl/internal/ports"
)

func TestDataDragUnchangedRetargetAllocations(t *testing.T) {
	c := publishRig(t, 1)
	c.cursorX, c.cursorY = 20, 30
	id, x, y := c.hit(c.cursorX, c.cursorY)
	if id == 0 {
		t.Fatal("no target")
	}
	c.dataDrag = &dataDragState{target: id, at: [2]float64{x, y}}
	ctx := context.Background()
	var ev ports.ClientEvent = ports.InputRegionChanged{ID: id, All: true}
	if n := testing.AllocsPerRun(1000, func() {
		if dataDragHitChanged(ev) {
			if err := c.dataDragRetarget(ctx, 0); err != nil {
				panic(err)
			}
		}
	}); n != 0 {
		t.Fatalf("unchanged retarget: %g allocations, want 0", n)
	}
	for _, ev := range []ports.ClientEvent{ports.DataDragIcon{}, ports.WindowAppID{}, ports.CaptureSessionOpen{}, ports.PointerConstrained{}} {
		if dataDragHitChanged(ev) {
			t.Fatalf("rehit for irrelevant event %T", ev)
		}
	}
}