use super::*;

/// A wrapper around gtk::ListBox for Pawns
#[derive(Debug, Clone)]
pub struct PawnList {
    inner: gtk::ListBox,
}

impl PawnList {
    /// Initialize from the given existing ListBox
    pub fn init(inner: gtk::ListBox) -> Self {
        PawnList { inner }
    }

    /// Adds a Pawn to the list
    pub fn add(&self, pawn: &Pawn) {
        let row = gtk::ListBoxRow::new();
        row.add(pawn.as_ref());
        self.inner.add(&row);
        self.inner.show_all();
    }
}

/// Application data related to a Pawn
#[derive(Debug, Clone)]
pub struct PawnData {
    pub name: String,
    pub description: String,
    pub position: Option<String>, // Content of label from CellWidget
}

/// A wrapper widget for pawns.
#[derive(Debug, Clone)]
pub struct Pawn {
    data: PawnData,
    widget: gtk::Box,
    place_btn: gtk::Button,
    stats_btn: gtk::Button,
}

impl Pawn {
    pub fn new<S: Into<String>>(name: S, description: S) -> Self {
        let pawn_src = include_str!("../res/pawn.glade");
        let builder = gtk::Builder::new_from_string(pawn_src);
        let name = name.into();
        let label: gtk::Label = builder.get_object("name").unwrap();
        label.set_text(&name);
        let widget: gtk::Box = builder.get_object("pawn").unwrap();
        Pawn {
            data: PawnData {
                name,
                description: description.into(),
                position: None,
            },
            widget,
            place_btn: builder.get_object("place_btn").unwrap(),
            stats_btn: builder.get_object("stats_btn").unwrap(),
        }
    }

    pub fn from_data(data: PawnData) -> Self {
        Self::new(data.name, data.description)
    }

    pub fn connect_place(&self, state: AppState) {
        let data = self.data.clone();
        self.place_btn.connect_clicked(move |_| {
            println!("Placing {}...", &data.name);
            let mut state = state.0.borrow_mut();
            let _ = state.pending.replace(data.clone()); // ???
        });
    }

    pub fn connect_stats(&self) {
        self.stats_btn.connect_clicked(move |_| {
            println!("Showing stats...");
        });
    }
}

impl AsRef<gtk::Box> for Pawn {
    fn as_ref(&self) -> &gtk::Box {
        &self.widget
    }
}

pub fn pawn_factory() -> Vec<Pawn> {
    let mut pawns = Vec::with_capacity(3);
    for name in &["Lomion", "Oilosse", "Fefi"] {
        pawns.push(Pawn::new(*name, ""));
    }
    pawns
}

#[cfg(test)]
mod tests {
    #[test]
    fn test_pawn_factory() {
        let pawns = pawn_factory();
        assert_eq!(pawns.len(), 3);
        assert_eq!(pawns.get(2).unwrap(), "Fefi");
    }
}