// Copyright (c) 2026 Storm Dragon
// Authors: Storm Dragon, Angus Kola
// SPDX-License-Identifier: GPL-3.0-or-later
package interaction

import (
	"errors"
	ui "git.stormux.org/storm/screenreader-common/internalui"
)

type GridTab struct {
	ID, Label string
	Items     []Item
}

func NewGridSession(title string, tabs []GridTab, columns int, checkbox Element) (*Session, error) {
	if title == "" || len(tabs) == 0 || columns < 1 || columns > 64 || checkbox.Kind != CheckBox || checkbox.ID == "" || checkbox.Label == "" {
		return nil, errors.New("invalid tabbed grid")
	}
	form := ui.Form{Type: ui.TabForm, Title: title, Detailed: true}
	for _, tab := range tabs {
		choices := make([]ui.Choice, 0, len(tab.Items))
		for _, item := range tab.Items {
			if item.ID == "" {
				return nil, errors.New("invalid grid item")
			}
			choices = append(choices, ui.Choice{ID: item.ID, Label: item.Label, Disabled: item.Disabled, Literal: true})
		}
		form.Tabs = append(form.Tabs, ui.Tab{ID: tab.ID, Label: tab.Label, Controls: []ui.Control{
			{ID: "grid", Label: "Grid", Kind: ui.Grid, Choices: choices, Columns: columns, Action: "select-grid-item"},
			{ID: checkbox.ID, Label: checkbox.Label, Kind: ui.CheckBox, Checked: checkbox.Checked},
		}})
	}
	core, err := ui.NewSession(form, ui.Messages{})
	if err != nil {
		return nil, err
	}
	return &Session{core: core, title: title, grid: true, checkbox: checkbox.ID}, nil
}