/*
Copyright 2023, Savanni D'Gerinel <savanni@luminescent-dreams.com>

This file is part of FitnessTrax.

FitnessTrax is free software: you can redistribute it and/or modify it under the terms of the GNU
General Public License as published by the Free Software Foundation, either version 3 of the
License, or (at your option) any later version.

FitnessTrax is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without
even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.

You should have received a copy of the GNU General Public License along with FitnessTrax. If not, see <https://www.gnu.org/licenses/>.
*/

use crate::components::DaySummary;
use dimensioned::si::KG;
use ft_core::{TraxRecord, Weight};
use glib::Object;
use gtk::{prelude::*, subclass::prelude::*};
use std::cell::RefCell;

/// The historical view will show a window into the main database. It will show some version of
/// daily summaries, daily details, and will provide all functions the user may need for editing
/// records.
pub struct HistoricalViewPrivate {}

#[glib::object_subclass]
impl ObjectSubclass for HistoricalViewPrivate {
    const NAME: &'static str = "HistoricalView";
    type Type = HistoricalView;
    type ParentType = gtk::Box;

    fn new() -> Self {
        Self {}
    }
}

impl ObjectImpl for HistoricalViewPrivate {}
impl WidgetImpl for HistoricalViewPrivate {}
impl BoxImpl for HistoricalViewPrivate {}

glib::wrapper! {
    pub struct HistoricalView(ObjectSubclass<HistoricalViewPrivate>) @extends gtk::Box, gtk::Widget, @implements gtk::Orientable;
}

impl HistoricalView {
    pub fn new(_records: Vec<TraxRecord>) -> Self {
        let s: Self = Object::builder().build();
        s.set_orientation(gtk::Orientation::Vertical);

        let label = gtk::Label::builder()
            .label("Database has been configured and now it is time to show data")
            .build();
        s.append(&label);

        let day_records: Vec<DayRecords> = vec![DayRecords::new(
            chrono::NaiveDate::from_ymd_opt(2023, 10, 13).unwrap(),
            vec![TraxRecord::Weight(Weight {
                date: chrono::NaiveDate::from_ymd_opt(2023, 10, 13).unwrap(),
                weight: 100. * KG,
            })],
        )];

        let model = gio::ListStore::new::<DayRecords>();
        model.extend_from_slice(&day_records);

        let factory = gtk::SignalListItemFactory::new();
        factory.connect_setup(move |_, list_item| {
            list_item
                .downcast_ref::<gtk::ListItem>()
                .expect("should be a ListItem")
                .set_child(Some(&DaySummary::new()));
        });

        factory.connect_bind(move |_, list_item| {
            let records = list_item
                .downcast_ref::<gtk::ListItem>()
                .expect("should be a ListItem")
                .item()
                .and_downcast::<DayRecords>()
                .expect("should be a DaySummary");

            let summary = list_item
                .downcast_ref::<gtk::ListItem>()
                .expect("should be a ListItem")
                .child()
                .and_downcast::<DaySummary>()
                .expect("should be a DaySummary");

            summary.set_date(records.date());
            summary.set_records(records.records());
        });

        let lst = gtk::ListView::builder()
            .model(&gtk::NoSelection::new(Some(model)))
            .factory(&factory)
            .build();

        s.append(&lst);

        s
    }
}

#[derive(Default)]
pub struct DayRecordsPrivate {
    date: RefCell<chrono::NaiveDate>,
    records: RefCell<Vec<TraxRecord>>,
}

#[glib::object_subclass]
impl ObjectSubclass for DayRecordsPrivate {
    const NAME: &'static str = "DayRecords";
    type Type = DayRecords;
}

impl ObjectImpl for DayRecordsPrivate {}

glib::wrapper! {
    pub struct DayRecords(ObjectSubclass<DayRecordsPrivate>);
}

impl DayRecords {
    pub fn new(date: chrono::NaiveDate, records: Vec<TraxRecord>) -> Self {
        let s: Self = Object::builder().build();

        *s.imp().date.borrow_mut() = date;
        *s.imp().records.borrow_mut() = records;

        s
    }

    pub fn date(&self) -> chrono::NaiveDate {
        self.imp().date.borrow().clone()
    }

    pub fn records(&self) -> Vec<TraxRecord> {
        self.imp().records.borrow().clone()
    }
}