// This file was generated by gir (https://github.com/gtk-rs/gir)
// from gir-files (https://github.com/gtk-rs/gir-files.git)
// DO NOT EDIT

use crate::Buffer;
use crate::CompressionType;
use crate::Encoding;
use crate::File;
use crate::NewlineType;
use glib::object::Cast;
use glib::object::IsA;
use glib::translate::*;
use glib::StaticType;
use glib::ToValue;
use std::fmt;

glib::wrapper! {
    pub struct FileLoader(Object<ffi::GtkSourceFileLoader, ffi::GtkSourceFileLoaderClass>);

    match fn {
        get_type => || ffi::gtk_source_file_loader_get_type(),
    }
}

impl FileLoader {
    /// Creates a new `FileLoader` object. The contents is read from the
    /// `File`'s location. If not already done, call
    /// `FileExt::set_location` before calling this constructor. The previous
    /// location is anyway not needed, because as soon as the file loading begins,
    /// the `buffer` is emptied.
    /// ## `buffer`
    /// the `Buffer` to load the contents into.
    /// ## `file`
    /// the `File`.
    ///
    /// # Returns
    ///
    /// a new `FileLoader` object.
    #[doc(alias = "gtk_source_file_loader_new")]
    pub fn new<P: IsA<Buffer>, Q: IsA<File>>(buffer: &P, file: &Q) -> FileLoader {
        skip_assert_initialized!();
        unsafe {
            from_glib_full(ffi::gtk_source_file_loader_new(
                buffer.as_ref().to_glib_none().0,
                file.as_ref().to_glib_none().0,
            ))
        }
    }

    #[doc(alias = "gtk_source_file_loader_new_from_stream")]
    pub fn from_stream<P: IsA<Buffer>, Q: IsA<File>, R: IsA<gio::InputStream>>(
        buffer: &P,
        file: &Q,
        stream: &R,
    ) -> FileLoader {
        skip_assert_initialized!();
        unsafe {
            from_glib_full(ffi::gtk_source_file_loader_new_from_stream(
                buffer.as_ref().to_glib_none().0,
                file.as_ref().to_glib_none().0,
                stream.as_ref().to_glib_none().0,
            ))
        }
    }

    ///
    /// # Returns
    ///
    /// the `Buffer` to load the contents into.
    #[doc(alias = "gtk_source_file_loader_get_buffer")]
    pub fn get_buffer(&self) -> Option<Buffer> {
        unsafe {
            from_glib_none(ffi::gtk_source_file_loader_get_buffer(
                self.to_glib_none().0,
            ))
        }
    }

    ///
    /// # Returns
    ///
    /// the detected compression type.
    #[doc(alias = "gtk_source_file_loader_get_compression_type")]
    pub fn get_compression_type(&self) -> CompressionType {
        unsafe {
            from_glib(ffi::gtk_source_file_loader_get_compression_type(
                self.to_glib_none().0,
            ))
        }
    }

    ///
    /// # Returns
    ///
    /// the detected file encoding.
    #[doc(alias = "gtk_source_file_loader_get_encoding")]
    pub fn get_encoding(&self) -> Option<Encoding> {
        unsafe {
            from_glib_none(ffi::gtk_source_file_loader_get_encoding(
                self.to_glib_none().0,
            ))
        }
    }

    ///
    /// # Returns
    ///
    /// the `File`.
    #[doc(alias = "gtk_source_file_loader_get_file")]
    pub fn get_file(&self) -> Option<File> {
        unsafe { from_glib_none(ffi::gtk_source_file_loader_get_file(self.to_glib_none().0)) }
    }

    ///
    /// # Returns
    ///
    /// the `gio::InputStream` to load, or `None`
    /// if a `gio::File` is used.
    #[doc(alias = "gtk_source_file_loader_get_input_stream")]
    pub fn get_input_stream(&self) -> Option<gio::InputStream> {
        unsafe {
            from_glib_none(ffi::gtk_source_file_loader_get_input_stream(
                self.to_glib_none().0,
            ))
        }
    }

    ///
    /// # Returns
    ///
    /// the `gio::File` to load, or `None`
    /// if an input stream is used.
    #[doc(alias = "gtk_source_file_loader_get_location")]
    pub fn get_location(&self) -> Option<gio::File> {
        unsafe {
            from_glib_none(ffi::gtk_source_file_loader_get_location(
                self.to_glib_none().0,
            ))
        }
    }

    ///
    /// # Returns
    ///
    /// the detected newline type.
    #[doc(alias = "gtk_source_file_loader_get_newline_type")]
    pub fn get_newline_type(&self) -> NewlineType {
        unsafe {
            from_glib(ffi::gtk_source_file_loader_get_newline_type(
                self.to_glib_none().0,
            ))
        }
    }

    //#[doc(alias = "gtk_source_file_loader_load_async")]
    //pub fn load_async<P: IsA<gio::Cancellable>, Q: FnOnce(Result<(), glib::Error>) + Send + 'static, R: FnOnce(Result<(), glib::Error>) + Send + 'static>(&self, io_priority: glib::Priority, cancellable: Option<&P>, progress_callback: Q, progress_callback_notify: Fn() + 'static, callback: R) {
    //    unsafe { TODO: call ffi:gtk_source_file_loader_load_async() }
    //}

    //
    //pub fn load_async_future<Q: FnOnce(Result<(), glib::Error>) + Send + 'static>(&self, io_priority: glib::Priority, progress_callback: Q, progress_callback_notify: Fn() + 'static) -> Pin<Box_<dyn std::future::Future<Output = Result<(), glib::Error>> + 'static>> {

    //let progress_callback = progress_callback.map(ToOwned::to_owned);
    //let progress_callback_notify = progress_callback_notify.map(ToOwned::to_owned);
    //Box_::pin(gio::GioFuture::new(self, move |obj, send| {
    //    let cancellable = gio::Cancellable::new();
    //    obj.load_async(
    //        io_priority,
    //        Some(&cancellable),
    //        progress_callback.as_ref().map(::std::borrow::Borrow::borrow),
    //        progress_callback_notify.as_ref().map(::std::borrow::Borrow::borrow),
    //        move |res| {
    //            send.resolve(res);
    //        },
    //    );

    //    cancellable
    //}))
    //}
}

#[derive(Clone, Default)]
pub struct FileLoaderBuilder {
    buffer: Option<Buffer>,
    file: Option<File>,
    input_stream: Option<gio::InputStream>,
    location: Option<gio::File>,
}

impl FileLoaderBuilder {
    pub fn new() -> Self {
        Self::default()
    }

    pub fn build(self) -> FileLoader {
        let mut properties: Vec<(&str, &dyn ToValue)> = vec![];
        if let Some(ref buffer) = self.buffer {
            properties.push(("buffer", buffer));
        }
        if let Some(ref file) = self.file {
            properties.push(("file", file));
        }
        if let Some(ref input_stream) = self.input_stream {
            properties.push(("input-stream", input_stream));
        }
        if let Some(ref location) = self.location {
            properties.push(("location", location));
        }
        let ret = glib::Object::new::<FileLoader>(&properties).expect("object new");
        ret
    }

    pub fn buffer<P: IsA<Buffer>>(mut self, buffer: &P) -> Self {
        self.buffer = Some(buffer.clone().upcast());
        self
    }

    pub fn file<P: IsA<File>>(mut self, file: &P) -> Self {
        self.file = Some(file.clone().upcast());
        self
    }

    pub fn input_stream<P: IsA<gio::InputStream>>(mut self, input_stream: &P) -> Self {
        self.input_stream = Some(input_stream.clone().upcast());
        self
    }

    pub fn location<P: IsA<gio::File>>(mut self, location: &P) -> Self {
        self.location = Some(location.clone().upcast());
        self
    }
}

impl fmt::Display for FileLoader {
    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
        f.write_str("FileLoader")
    }
}