// Copyright (c) 2026 Storm Dragon
// SPDX-License-Identifier: GPL-3.0-or-later

package interaction

import (
	"strings"
	"testing"
)

func TestEmptyAndRefreshedGridKeepsFocusSearchAndLiteralWords(t *testing.T) {
	form := grid_form()
	form.Tabs[0].Controls[0].Choices = nil
	form.Tabs[0].Controls[0].DeleteAction = "remove"
	session, err := New_session(form)
	if err != nil {
		t.Fatal(err)
	}
	session.Handle(Key{Name: "tab"})
	if got := session.Handle(Key{Name: "enter"}); got.Action != "" || got.Speech != "No matches" {
		t.Fatal(got)
	}
	session.Handle(Key{Text: "c"})
	session.Set_choices("one", "grid", []Choice{{ID: "cat", Label: "cat", Literal: true}, {ID: "car", Label: "car", Literal: true}})
	session.Handle(Key{Name: "right"})
	session.Set_choices("one", "grid", []Choice{{ID: "car", Label: "car", Literal: true}, {ID: "cat", Label: "cat", Literal: true}})
	control, _ := session.Focused_control()
	if control.Text != "c" || control.Choices[control.Selected].ID != "car" {
		t.Fatal(control)
	}
	if got := session.Handle(Key{Name: "delete", Repeat: true}); got.Action != "" {
		t.Fatal(got)
	}
	if got := session.Handle(Key{Name: "delete"}); got.Action != "remove" {
		t.Fatal(got)
	}
	session.Set_choices("one", "grid", nil)
	if !strings.Contains(session.Describe(), "No matches") {
		t.Fatal(session.Describe())
	}
	// Updating a grid must own its choices, independently of worker buffers.
	choices := []Choice{{ID: "cat", Label: "cat", Literal: true}}
	session.Set_choices("one", "grid", choices)
	choices[0].Label = "wrong"
	if !strings.Contains(session.Describe(), "cat") {
		t.Fatal(session.Describe())
	}
}