/*
 * advotracker - Hotline tackingtool for Advocats
 *
 * Copyright 2020 Ralf Zerres <ralf.zerres@networkx.de>
 * SPDX-License-Identifier: (0BSD or MIT)
 */

use orbtk::prelude::*;

use crate::{
    data::constants::*,
    widgets::localization::localization_state::LocalizationState,
};

type List = Vec<String>;

// Macro that initializes the widget structures/variables for our view
widget!(LocalizationView<LocalizationState> {
    languages: List,
    selected_index: i32 }
);

/// The template implementation of the localization view
/// All GUI elements are styled using the "style" attribute referencing to a ron based css
impl Template for LocalizationView {
    fn template(self, id: Entity, ctx: &mut BuildContext<'_>) -> Self {
        let languages = vec!["English".to_string(), "German".to_string()];
        let count = languages.len();

        self.languages(languages)
            .selected_index(1)
            .child(
                Grid::new()
                    .id(ID_LOCALIZATION_FORM)
                    .margin(4)
                    .columns(
                        Columns::create()
                            .push(120)
                            .push(12)
                            .push(150)
                    )
                    .rows(Rows::create()
                          .push("auto")
                          .push(4)
                          .push("auto")
                          .push(4)
                          .push("auto")
                          .push(12)
                          .push("auto"),
                    )
                    .child(
                        TextBlock::new()
                            .id(ID_LOCALIZATION_HEADER)
                            .h_align("start")
                            .attach(Grid::column(0))
                            .attach(Grid::row(0))
                            .attach(Grid::column_span(3))
                            .text("Localization dialog")
                            .style("header")
                            .build(ctx),
                    )
                    .child(
                        TextBlock::new()
                            .id(ID_LOCALIZATION_LABEL_LANGUAGE_NAME)
                            .attach(Grid::column(0))
                            .attach(Grid::row(2))
                            .v_align("center")
                            .h_align("end")
                            .text("Language ID")
                            .build(ctx),
                    )
                    .child(
                        ComboBox::new()
                            .id(ID_LOCALIZATION_LANGUAGES)
                            .count(count)
                            .attach(Grid::column(2))
                            .attach(Grid::row(2))
                            .items_builder(move |bc, index| {
                                let text = bc.get_widget(id)
                                    .get::<Vec<String>>("languages")[index]
                                    .clone();
                                TextBlock::new()
                                    .id(ID_LOCALIZATION_LANGUAGE_NAME)
                                    .v_align("center")
                                    .text(text)
                                    .build(bc)
                            })
                            .on_changed("selected_index", move |states, _| {
                                states.get_mut::<LocalizationState>(id).change_language();
                            })
                            .selected_index(id)
                            .build(ctx),
                    )
                    .build(ctx),
            )
    }
}