package editor

import (
	"testing"
    "pad/internal/ui"
)

// TestCursorExistsInLayout checks if the EditorLayout produces a cursor element.
func TestCursorExistsInLayout(t *testing.T) {
	state := NewState()
	TheState = state
	
	// Set to EditorPage
	state.page = EditorPage
	
	elems := EditorLayout(ui.Dp(800), ui.Dp(600), false)
	
	cursorFound := false
	for _, e := range elems {
        // Assuming we add a Type() method to ui.Element interface later.
        // For now, this will fail to compile if Type() doesn't exist.
        // Let's assume we can cast or inspect the element.
		if e.Type() == "cursor" {
			cursorFound = true
			break
		}
	}
	
	if !cursorFound {
		t.Error("Expected cursor element in EditorLayout")
	}
}

// TestKeyDownMove verifies key down events update CursorPosition.
func TestKeyDownMove(t *testing.T) {
	state := NewState()
	TheState = state
	state.Editor.Buffer = "Hello"
	state.Editor.CursorPosition = 1

	// Simulate Right Arrow
	HandleKeyDown("Right")
	if state.Editor.CursorPosition != 2 {
		t.Errorf("Expected cursor position 2, got %d", state.Editor.CursorPosition)
	}

	// Simulate Left Arrow
	HandleKeyDown("Left")
	if state.Editor.CursorPosition != 1 {
		t.Errorf("Expected cursor position 1, got %d", state.Editor.CursorPosition)
	}
}