/*
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::{EditView, ParseError, Singleton, TextEntry};
use chrono::{Local, NaiveDate};
use dimensioned::si;
use glib::{object::ObjectRef, Object};
use gtk::{prelude::*, subclass::prelude::*};
use std::{borrow::Borrow, cell::RefCell};

#[derive(Default)]
pub struct WeightViewPrivate {}

pub struct Weight {
    label: gtk::Label,
}

impl Weight {
    pub fn new(weight: Option<si::Kilogram<f64>>) -> Self {
        let label = gtk::Label::builder()
            .css_classes(["card", "weight-view"])
            .can_focus(true)
            .build();

        match weight {
            Some(w) => label.set_text(&format!("{:?}", w)),
            None => label.set_text("No weight recorded"),
        }

        Self { label }
    }

    pub fn widget(&self) -> gtk::Widget {
        self.label.clone().upcast()
    }
}

#[derive(Debug)]
pub struct WeightEdit {
    entry: TextEntry<si::Kilogram<f64>>,
}

impl WeightEdit {
    pub fn new<OnUpdate>(weight: Option<si::Kilogram<f64>>, on_update: OnUpdate) -> Self
    where
        OnUpdate: Fn(si::Kilogram<f64>) + 'static,
    {
        Self {
            entry: TextEntry::new(
                "0 kg",
                weight,
                |val: &si::Kilogram<f64>| val.to_string(),
                move |v: &str| {
                    let new_weight = v.parse::<f64>().map(|w| w * si::KG).map_err(|_| ParseError);
                    match new_weight {
                        Ok(w) => {
                            on_update(w);
                            Ok(w)
                        }
                        Err(err) => Err(err),
                    }
                },
            ),
        }
    }

    pub fn set_value(&self, value: Option<si::Kilogram<f64>>) {
        self.entry.set_value(value);
    }

    pub fn value(&self) -> Option<si::Kilogram<f64>> {
        self.entry.value()
    }

    pub fn widget(&self) -> gtk::Widget {
        self.entry.widget()
    }
}