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use futures::io::AsyncWrite;
use rmpv::Value;

use super::{Buffer, Tabpage};
use crate::{
  error::CallError, impl_exttype_traits, rpc::model::IntoVal, Neovim,
};

/// A struct representing a neovim window. It is specific to a
/// [`Neovim`](crate::neovim::Neovim) instance, and calling a method on it will
/// always use this instance.
pub struct Window<W>
where
  W: AsyncWrite + Send + Unpin + 'static,
{
  pub(crate) code_data: Value,
  pub(crate) neovim: Neovim<W>,
}

impl_exttype_traits!(Window);

impl<W> Window<W>
where
  W: AsyncWrite + Send + Unpin + 'static,
{
  /// since: 1
  pub async fn get_buf(&self) -> Result<Buffer<W>, Box<CallError>> {
    Ok(
      self
        .neovim
        .call("nvim_win_get_buf", call_args![self.code_data.clone()])
        .await?
        .map(|val| Buffer::new(val, self.neovim.clone()))?,
    )
  }
  /// since: 1
  pub async fn get_tabpage(&self) -> Result<Tabpage<W>, Box<CallError>> {
    Ok(
      self
        .neovim
        .call("nvim_win_get_tabpage", call_args![self.code_data.clone()])
        .await?
        .map(|val| Tabpage::new(val, self.neovim.clone()))?,
    )
  }
}