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using Gee;
using Gtk;

using Dino.Entities;
using Xmpp.Xep;

namespace Dino.Ui.Util {
    public Adw.PreferencesGroup rows_to_preference_group(GLib.ListStore row_view_models, string title) {
        var preference_group = new Adw.PreferencesGroup() { title=title };

        for (int preference_group_i = 0; preference_group_i < row_view_models.get_n_items(); preference_group_i++) {
            var preferences_row = (ViewModel.PreferencesRow.Any) row_view_models.get_item(preference_group_i);

            Widget? w = row_to_preference_row(preferences_row);
            if (w == null) continue;

            preference_group.add(w);
        }

        return preference_group;
    }

    public Adw.PreferencesRow? row_to_preference_row(ViewModel.PreferencesRow.Any preferences_row) {
        var entry_view_model = preferences_row as ViewModel.PreferencesRow.Entry;
        if (entry_view_model != null) {
            Adw.EntryRow view = new Adw.EntryRow() { title = entry_view_model.title, show_apply_button=true };
            entry_view_model.bind_property("text", view, "text", BindingFlags.SYNC_CREATE | BindingFlags.BIDIRECTIONAL, (_, from, ref to) => {
                var str = (string) from;
                to = str ?? "";
                return true;
            });
            view.apply.connect(() => {
                entry_view_model.changed();
            });
            return view;
        }

        var password_view_model = preferences_row as ViewModel.PreferencesRow.PrivateText;
        if (password_view_model != null) {
            Adw.PasswordEntryRow view = new Adw.PasswordEntryRow() { title = password_view_model.title, show_apply_button=true };
            password_view_model.bind_property("text", view, "text", BindingFlags.SYNC_CREATE | BindingFlags.BIDIRECTIONAL, (_, from, ref to) => {
                var str = (string) from;
                to = str ?? "";
                return true;
            });
            view.apply.connect(() => {
                password_view_model.changed();
            });

            return view;
        }

        var row_text = preferences_row as ViewModel.PreferencesRow.Text;
        if (row_text != null) {
            var view = new Adw.ActionRow() {
                title = row_text.title,
                subtitle = row_text.text,
#if Adw_1_3
                subtitle_selectable = true,
#endif
            };
            view.add_css_class("property");

            Util.force_css(view, "row.property > box.header > box.title > .title { font-weight: 400; font-size: 9pt; opacity: 0.55; }");
            Util.force_css(view, "row.property > box.header > box.title > .subtitle { font-size: inherit; opacity: 1; }");
            return view;
        }

        var toggle_view_model = preferences_row as ViewModel.PreferencesRow.Toggle;
        if (toggle_view_model != null) {
            var view = new Adw.ActionRow() { title = toggle_view_model.title, subtitle = toggle_view_model.subtitle };
            var toggle = new Switch() { valign = Align.CENTER };
            view.activatable_widget = toggle;
            view.add_suffix(toggle);
            toggle_view_model.bind_property("state", toggle, "active", BindingFlags.SYNC_CREATE | BindingFlags.BIDIRECTIONAL);
            return view;
        }

        var combobox_view_model = preferences_row as ViewModel.PreferencesRow.ComboBox;
        if (combobox_view_model != null) {
            var string_list = new StringList(null);
            foreach (string text in combobox_view_model.items) {
                string_list.append(text);
            }
#if Adw_1_4
            var view = new Adw.ComboRow() { title = combobox_view_model.title };
            view.model = string_list;
            combobox_view_model.bind_property("active-item", view, "selected", BindingFlags.SYNC_CREATE | BindingFlags.BIDIRECTIONAL);
#else
            var view = new Adw.ActionRow() { title = combobox_view_model.title };
            var drop_down = new DropDown(string_list, null) { valign = Align.CENTER };
            combobox_view_model.bind_property("active-item", drop_down, "selected", BindingFlags.SYNC_CREATE | BindingFlags.BIDIRECTIONAL);
            view.activatable_widget = drop_down;
            view.add_suffix(drop_down);
#endif
            return view;
        }

        var widget_view_model = preferences_row as ViewModel.PreferencesRow.WidgetDeprecated;
        if (widget_view_model != null) {
            var view = new Adw.ActionRow() { title = widget_view_model.title };
            view.add_suffix(widget_view_model.widget);
            return view;
        }

        return null;
    }
}