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use std::collections::{HashMap, VecDeque};
use std::io::Write;
use std::os::unix::io::RawFd;
use std::path::PathBuf;
use std::sync::{mpsc, Arc, Condvar, Mutex};
use std::time::{Duration, Instant};
use zellij_utils::{nix, zellij_tile};
use crate::tests::possible_tty_inputs::{get_possible_tty_inputs, Bytes};
use crate::tests::utils::commands::{QUIT, SLEEP};
use zellij_client::os_input_output::ClientOsApi;
use zellij_server::os_input_output::{async_trait, AsyncReader, Pid, ServerOsApi};
use zellij_tile::data::Palette;
use zellij_utils::{
async_std,
channels::{ChannelWithContext, SenderType, SenderWithContext},
errors::ErrorContext,
interprocess::local_socket::LocalSocketStream,
ipc::{ClientToServerMsg, ServerToClientMsg},
pane_size::PositionAndSize,
shared::default_palette,
};
const MIN_TIME_BETWEEN_SNAPSHOTS: Duration = Duration::from_millis(150);
#[derive(Clone)]
pub enum IoEvent {
Kill(Pid),
SetTerminalSizeUsingFd(RawFd, u16, u16),
IntoRawMode(RawFd),
UnsetRawMode(RawFd),
TcDrain(RawFd),
}
#[derive(Clone)]
pub struct FakeStdoutWriter {
output_buffer: Arc<Mutex<Vec<u8>>>,
pub output_frames: Arc<Mutex<Vec<Vec<u8>>>>,
last_snapshot_time: Arc<Mutex<Instant>>,
}
impl FakeStdoutWriter {
pub fn new(last_snapshot_time: Arc<Mutex<Instant>>) -> Self {
FakeStdoutWriter {
output_buffer: Arc::new(Mutex::new(Vec::new())),
output_frames: Arc::new(Mutex::new(Vec::new())),
last_snapshot_time,
}
}
}
impl Write for FakeStdoutWriter {
fn write(&mut self, buf: &[u8]) -> Result<usize, std::io::Error> {
let mut bytes_written = 0;
let mut output_buffer = self.output_buffer.lock().unwrap();
for byte in buf {
bytes_written += 1;
output_buffer.push(*byte);
}
Ok(bytes_written)
}
fn flush(&mut self) -> Result<(), std::io::Error> {
let mut output_buffer = self.output_buffer.lock().unwrap();
let mut output_frames = self.output_frames.lock().unwrap();
let new_frame = output_buffer.drain(..).collect();
output_frames.push(new_frame);
let mut last_snapshot_time = self.last_snapshot_time.lock().unwrap();
*last_snapshot_time = Instant::now();
Ok(())
}
}
#[derive(Clone)]
pub struct FakeInputOutput {
read_buffers: Arc<Mutex<HashMap<RawFd, Bytes>>>,
input_to_add: Arc<Mutex<Option<Vec<[u8; 10]>>>>,
stdin_commands: Arc<Mutex<VecDeque<Vec<u8>>>>,
stdin_writes: Arc<Mutex<HashMap<RawFd, Vec<u8>>>>,
pub stdout_writer: FakeStdoutWriter, // stdout_writer.output is already an arc/mutex
io_events: Arc<Mutex<Vec<IoEvent>>>,
win_sizes: Arc<Mutex<HashMap<RawFd, PositionAndSize>>>,
possible_tty_inputs: HashMap<u16, Bytes>,
last_snapshot_time: Arc<Mutex<Instant>>,
send_instructions_to_client: SenderWithContext<ServerToClientMsg>,
receive_instructions_from_server: Arc<Mutex<mpsc::Receiver<(ServerToClientMsg, ErrorContext)>>>,
send_instructions_to_server: SenderWithContext<ClientToServerMsg>,
receive_instructions_from_client: Arc<Mutex<mpsc::Receiver<(ClientToServerMsg, ErrorContext)>>>,
should_trigger_sigwinch: Arc<(Mutex<bool>, Condvar)>,
sigwinch_event: Option<PositionAndSize>,
}
impl FakeInputOutput {
pub fn new(winsize: PositionAndSize) -> Self {
let mut win_sizes = HashMap::new();
let last_snapshot_time = Arc::new(Mutex::new(Instant::now()));
let stdout_writer = FakeStdoutWriter::new(last_snapshot_time.clone());
let (client_sender, client_receiver): ChannelWithContext<ServerToClientMsg> =
mpsc::channel();
let send_instructions_to_client = SenderWithContext::new(SenderType::Sender(client_sender));
let (server_sender, server_receiver): ChannelWithContext<ClientToServerMsg> =
mpsc::channel();
let send_instructions_to_server = SenderWithContext::new(SenderType::Sender(server_sender));
win_sizes.insert(0, winsize); // 0 is the current terminal
FakeInputOutput {
read_buffers: Arc::new(Mutex::new(HashMap::new())),
stdin_writes: Arc::new(Mutex::new(HashMap::new())),
input_to_add: Arc::new(Mutex::new(None)),
stdin_commands: Arc::new(Mutex::new(VecDeque::new())),
stdout_writer,
last_snapshot_time,
io_events: Arc::new(Mutex::new(vec![])),
win_sizes: Arc::new(Mutex::new(win_sizes)),
possible_tty_inputs: get_possible_tty_inputs(),
receive_instructions_from_client: Arc::new(Mutex::new(server_receiver)),
send_instructions_to_server,
receive_instructions_from_server: Arc::new(Mutex::new(client_receiver)),
send_instructions_to_client,
should_trigger_sigwinch: Arc::new((Mutex::new(false), Condvar::new())),
sigwinch_event: None,
}
}
pub fn with_tty_inputs(mut self, tty_inputs: HashMap<u16, Bytes>) -> Self {
self.possible_tty_inputs = tty_inputs;
self
}
pub fn add_terminal_input(&mut self, input: &[&[u8]]) {
let mut stdin_commands: VecDeque<Vec<u8>> = VecDeque::new();
for command in input.iter() {
stdin_commands.push_back(command.
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