Send some messages

gleam.toml

@@ -14,10 +14,6 @@ version = "1.0.0"
 
 [dependencies]
 gleam_stdlib = ">= 0.44.0 and < 2.0.0"
-gleam_otp = ">= 1.2.0 and < 2.0.0"
-gleam_erlang = ">= 1.3.0 and < 2.0.0"
-simplifile = ">= 2.3.1 and < 3.0.0"
-gleam_json = ">= 3.1.0 and < 4.0.0"
 
 [dev-dependencies]
 gleeunit = ">= 1.0.0 and < 2.0.0"

manifest.toml

@@ -2,19 +2,10 @@
 # You typically do not need to edit this file
 
 packages = [
-  { name = "filepath", version = "1.1.2", build_tools = ["gleam"], requirements = ["gleam_stdlib"], otp_app = "filepath", source = "hex", outer_checksum = "B06A9AF0BF10E51401D64B98E4B627F1D2E48C154967DA7AF4D0914780A6D40A" },
-  { name = "gleam_erlang", version = "1.3.0", build_tools = ["gleam"], requirements = ["gleam_stdlib"], otp_app = "gleam_erlang", source = "hex", outer_checksum = "1124AD3AA21143E5AF0FC5CF3D9529F6DB8CA03E43A55711B60B6B7B3874375C" },
-  { name = "gleam_json", version = "3.1.0", build_tools = ["gleam"], requirements = ["gleam_stdlib"], otp_app = "gleam_json", source = "hex", outer_checksum = "44FDAA8847BE8FC48CA7A1C089706BD54BADCC4C45B237A992EDDF9F2CDB2836" },
-  { name = "gleam_otp", version = "1.2.0", build_tools = ["gleam"], requirements = ["gleam_erlang", "gleam_stdlib"], otp_app = "gleam_otp", source = "hex", outer_checksum = "BA6A294E295E428EC1562DC1C11EA7530DCB981E8359134BEABC8493B7B2258E" },
   { name = "gleam_stdlib", version = "0.65.0", build_tools = ["gleam"], requirements = [], otp_app = "gleam_stdlib", source = "hex", outer_checksum = "7C69C71D8C493AE11A5184828A77110EB05A7786EBF8B25B36A72F879C3EE107" },
   { name = "gleeunit", version = "1.9.0", build_tools = ["gleam"], requirements = ["gleam_stdlib"], otp_app = "gleeunit", source = "hex", outer_checksum = "DA9553CE58B67924B3C631F96FE3370C49EB6D6DC6B384EC4862CC4AAA718F3C" },
-  { name = "simplifile", version = "2.3.1", build_tools = ["gleam"], requirements = ["filepath", "gleam_stdlib"], otp_app = "simplifile", source = "hex", outer_checksum = "957E0E5B75927659F1D2A1B7B75D7B9BA96FAA8D0C53EA71C4AD9CD0C6B848F6" },
 ]
 
 [requirements]
-gleam_erlang = { version = ">= 1.3.0 and < 2.0.0" }
-gleam_json = { version = ">= 3.1.0 and < 4.0.0" }
-gleam_otp = { version = ">= 1.2.0 and < 2.0.0" }
 gleam_stdlib = { version = ">= 0.44.0 and < 2.0.0" }
 gleeunit = { version = ">= 1.0.0 and < 2.0.0" }
-simplifile = { version = ">= 2.3.1 and < 3.0.0" }

src/musicplayer.gleam

@@ -1,32 +1,41 @@
-import gleam/erlang/process.{type Name}
+import gleam/io
 
-import musicplayer/input/input
-import musicplayer/input/key.{type Key}
-import musicplayer/mpv/mpv
-import musicplayer/musicplayer
+import tcp/reason
+import tcp/tcp
 
 pub fn main() -> Nil {
-  let input_keys_name: Name(Key) = process.new_name("input_keys")
-  let input_stream_name: Name(List(String)) = process.new_name("input_stream")
+  let socket_path = "/tmp/musicplayer.sock"
 
-  // `input_inject` is created by name to allow the `input` process that
-  // owns `read_input` to be able to register and receive from it,
-  //  while the any other processes can use the name reference to
-  // inject input
-  let input_inject_name: Name(Key) = process.new_name("input_inject_keys")
+  case tcp.connect(socket_path) {
+    Error(r) ->
+      io.println("Failed to connect to socket: " <> reason.to_string(r))
+    Ok(socket) -> {
+      io.println("connected")
 
-  input.new(input_keys_name, input_stream_name, input_inject_name)
+      let messages = ["hello, \n", "world!\n"]
 
-  let assert Ok(mpv) = mpv.new()
+      messages |> send_messages(socket, _)
 
-  let exit = process.new_subject()
-  let assert Ok(_) =
-    musicplayer.new(
-      mpv,
-      input_keys_name,
-      input_stream_name,
-      input_inject_name,
-      exit,
-    )
-  process.receive_forever(exit)
+      io.println("closing")
+      tcp.close(socket)
+    }
+  }
+}
+
+fn send_messages(socket: tcp.Socket, messages: List(String)) -> Nil {
+  case messages {
+    [] -> Nil
+    [message, ..rest] -> {
+      send_message(socket, message)
+      send_messages(socket, rest)
+    }
+  }
+}
+
+fn send_message(socket: tcp.Socket, message: String) -> Nil {
+  case tcp.send(socket, message) {
+    Error(r) ->
+      io.println("Failed to send message to socket: " <> reason.to_string(r))
+    Ok(_) -> io.println("Sent message to socket")
+  }
 }

src/musicplayer/control.gleam

@@ -1,25 +0,0 @@
-import musicplayer/input/key.{type Key}
-
-pub type Control {
-  TogglePlayPause
-
-  Search
-
-  Exit
-}
-
-pub fn from_key(key: Key) -> Result(Control, Nil) {
-  case key {
-    key.Char(char) -> char_control(char)
-    _ -> Error(Nil)
-  }
-}
-
-fn char_control(char: String) -> Result(Control, Nil) {
-  case char {
-    " " -> Ok(TogglePlayPause)
-    "q" -> Ok(Exit)
-    "/" -> Ok(Search)
-    _ -> Error(Nil)
-  }
-}

src/musicplayer/input/input.gleam

@@ -1,48 +0,0 @@
-import gleam/erlang/process.{type Name, type Subject}
-
-import musicplayer/input/key.{type Key}
-
-// TODO REWRITE below
-
-/// `new` accepts a list of listeners that are composed of two subjects;
-///   - one to get the final `Key` and
-///   - one to tap the input as it is read from i/o
-/// and
-///   - a subject name that is used to create a `Subject` that other processes
-///     know they can inject a `Key` into the input with
-pub fn new(
-  input_keys_name: Name(Key),
-  input_stream_name: Name(List(String)),
-  input_inject_name: Name(Key),
-) -> Nil {
-  let _ =
-    process.spawn(fn() {
-      let input_keys = process.named_subject(input_keys_name)
-      let input_stream = process.named_subject(input_stream_name)
-      let input_inject = process.named_subject(input_inject_name)
-
-      let assert Ok(_) = process.register(process.self(), input_inject_name)
-
-      read_input(input_keys, input_stream, input_inject)
-    })
-
-  echo "waiting for input"
-  key.start_raw_shell()
-  Nil
-}
-
-fn read_input(
-  input_keys: Subject(Key),
-  input_stream: Subject(List(String)),
-  input_inject: Subject(Key),
-) -> Nil {
-  let buffer = case process.receive(input_inject, 1) {
-    Ok(key.Continue(buffer)) -> buffer
-    Ok(_) | Error(_) -> []
-  }
-
-  key.read_input_until_key(buffer, input_stream)
-  |> process.send(input_keys, _)
-
-  read_input(input_keys, input_stream, input_inject)
-}

src/musicplayer/input/internal.gleam

@@ -1,15 +0,0 @@
-import gleam/erlang/atom
-
-pub fn read_input() -> String {
-  io_get_chars("", 1)
-}
-
-pub type NotUsed
-
-// https://www.erlang.org/doc/apps/stdlib/shell.html#start_interactive/1
-@external(erlang, "shell", "start_interactive")
-pub fn shell_start_interactive(options: #(atom.Atom, atom.Atom)) -> NotUsed
-
-// https://www.erlang.org/doc/apps/stdlib/io.html#get_chars/2
-@external(erlang, "io", "get_chars")
-fn io_get_chars(prompt: String, count: Int) -> String

src/musicplayer/input/key.gleam

@@ -1,79 +0,0 @@
-import gleam/erlang/atom
-import gleam/erlang/process.{type Subject}
-import gleam/list
-import gleam/string
-
-import musicplayer/input/internal as internal_input
-
-pub type Key {
-  Char(String)
-
-  Input(String)
-  Left
-  Right
-  Up
-  Down
-
-  Continue(buffer: List(String))
-  Unknown
-}
-
-pub const esc = "\u{001B}"
-
-// control sequence introducer
-pub const csi = "["
-
-// input introducer
-pub const input_introducer = "::"
-
-pub fn from_list(l: List(String)) -> Key {
-  case l {
-    [e, c, "D"] if e == esc && c == csi -> Left
-    [e, c, "C"] if e == esc && c == csi -> Right
-    [e, c, "A"] if e == esc && c == csi -> Up
-    [e, c, "B"] if e == esc && c == csi -> Down
-
-    [e, c] if e == esc && c == csi -> Continue(l)
-
-    [ci] | [ci, _] if ci == input_introducer -> Continue(l)
-    [ii, cmd, tail] if ii == input_introducer -> {
-      case tail {
-        // Return
-        "\r" -> Input(cmd)
-        // Backspace
-        "\u{007F}" -> Continue([ii, string.drop_end(cmd, 1)])
-        _ -> Continue([ii, cmd <> tail])
-      }
-    }
-
-    [e] if e == esc -> Continue(l)
-    [char] -> Char(char)
-
-    [] -> Continue([])
-    _ -> Unknown
-  }
-}
-
-pub fn start_raw_shell() {
-  let no_shell = atom.create("noshell")
-  let raw = atom.create("raw")
-  internal_input.shell_start_interactive(#(no_shell, raw))
-}
-
-pub fn read_input_until_key(
-  l: List(String),
-  input_stream: Subject(List(String)),
-) -> Key {
-  case
-    internal_input.read_input()
-    |> list.wrap
-    |> list.append(l, _)
-    |> from_list
-  {
-    Continue(l) -> {
-      process.send(input_stream, l)
-      read_input_until_key(l, input_stream)
-    }
-    k -> k
-  }
-}

src/musicplayer/mpv/control.gleam

@@ -1,61 +0,0 @@
-import gleam/erlang/process.{type Subject}
-import gleam/json
-import gleam/result
-import gleam/string
-
-import musicplayer/mpv/internal as internal_control
-import musicplayer/tcp/reason.{type Reason}
-import musicplayer/tcp/tcp.{type Socket}
-
-pub type Control {
-  TogglePlayPause
-
-  GetPlaybackTime(reply_to: Subject(Result(PlaybackTime, ControlError)))
-
-  Exit(reply_to: Subject(Nil))
-}
-
-pub type ControlError {
-  ControlError(details: String)
-}
-
-pub fn toggle_play_pause(socket: Socket) -> Result(Nil, ControlError) {
-  let command =
-    json.object([#("command", json.array(["cycle", "pause"], of: json.string))])
-
-  case send_command(socket, command) {
-    Error(r) -> Error(ControlError(reason.to_string(r)))
-    Ok(_) -> Ok(Nil)
-  }
-}
-
-// https://mpv.io/manual/master/#command-interface-playback-time
-pub type PlaybackTime {
-  PlaybackTime(data: Float)
-}
-
-pub fn get_playback_time(socket: Socket) -> Result(PlaybackTime, ControlError) {
-  let command =
-    json.object([
-      #(
-        "command",
-        json.array(["get_property_string", "playback-time"], of: json.string),
-      ),
-    ])
-
-  case send_command(socket, command) {
-    Error(r) -> Error(ControlError(reason.to_string(r)))
-    Ok(json_string) ->
-      case internal_control.parse_playback_time(json_string) {
-        Error(e) -> Error(ControlError(string.inspect(e)))
-        Ok(data) -> Ok(PlaybackTime(data))
-      }
-  }
-}
-
-fn send_command(socket: Socket, command: json.Json) -> Result(String, Reason) {
-  result.try(tcp.send(socket, json.to_string(command) <> "\n"), fn(_) {
-    let timeout_ms = 10_000
-    tcp.receive(socket, timeout_ms)
-  })
-}

src/musicplayer/mpv/internal.gleam

@@ -1,25 +0,0 @@
-import gleam/dynamic/decode
-import gleam/float
-import gleam/json
-import gleam/string
-
-pub fn parse_playback_time(
-  json_string: String,
-) -> Result(Float, json.DecodeError) {
-  let decoder = {
-    let float_dececoder = fn(data_string) {
-      case float.parse(data_string) {
-        Error(_) -> decode.failure(0.0, "data")
-        Ok(float_value) -> decode.success(float_value)
-      }
-    }
-    use data <- decode.field(
-      "data",
-      decode.then(decode.string, float_dececoder),
-    )
-
-    decode.success(data)
-  }
-
-  json.parse(from: string.trim(json_string), using: decoder)
-}

src/musicplayer/mpv/mpv.gleam

@@ -1,62 +0,0 @@
-import gleam/erlang/process.{type Subject}
-import gleam/otp/actor
-import gleam/result
-import gleam/string
-
-import musicplayer/mpv/control
-import musicplayer/tcp/reason
-import musicplayer/tcp/tcp.{type Socket}
-
-type State(socket) {
-  State(socket: Socket)
-}
-
-pub fn new() -> Result(Subject(control.Control), String) {
-  // TODO start up mvp here, currently hi-jacking `naviterm`s socket
-  let socket_path = "/tmp/naviterm_mpv"
-
-  case tcp.connect(socket_path) {
-    Error(r) -> Error("Could not connect to mpv: " <> reason.to_string(r))
-    Ok(socket) -> {
-      case
-        actor.new(State(socket))
-        |> actor.on_message(handle_message)
-        |> actor.start
-      {
-        Error(start_error) ->
-          Error("Could not start actor: " <> string.inspect(start_error))
-        Ok(actor.Started(data: mpv, ..)) -> Ok(mpv)
-      }
-    }
-  }
-}
-
-fn handle_message(
-  state: State(socket),
-  control: control.Control,
-) -> actor.Next(State(socket), control.Control) {
-  case control {
-    control.TogglePlayPause -> {
-      echo "mpv: toggling play/pause"
-
-      let _ =
-        result.map_error(control.toggle_play_pause(state.socket), fn(err) {
-          echo "Could not toggle play/pause: " <> err.details
-        })
-
-      actor.continue(state)
-    }
-
-    control.GetPlaybackTime(reply_to) -> {
-      let res = control.get_playback_time(state.socket)
-      process.send(reply_to, res)
-      actor.continue(state)
-    }
-
-    control.Exit(reply_to) -> {
-      tcp.close(state.socket)
-      process.send(reply_to, Nil)
-      actor.stop()
-    }
-  }
-}

src/musicplayer/musicplayer.gleam

@@ -1,106 +0,0 @@
-import gleam/erlang/process.{type Name, type Subject}
-import gleam/float
-import gleam/otp/actor
-import gleam/result
-import gleam/string
-
-import musicplayer/control.{type Control}
-import musicplayer/input/key.{type Key}
-import musicplayer/mpv/control as mpv_control
-
-type State(mpv, input_inject, exit) {
-  State(
-    mpv: Subject(mpv_control.Control),
-    input_inject: Subject(Key),
-    exit: Subject(Nil),
-  )
-}
-
-pub fn new(
-  mpv: Subject(mpv_control.Control),
-  input_keys_name: Name(Key),
-  input_stream_name: Name(List(String)),
-  input_inject_name: Name(Key),
-  exit: Subject(Nil),
-) -> Result(Nil, String) {
-  let input_keys = process.named_subject(input_keys_name)
-  let input_stream = process.named_subject(input_stream_name)
-  let input_inject = process.named_subject(input_inject_name)
-
-  case
-    actor.new(State(mpv, input_inject, exit))
-    |> actor.on_message(handle_message)
-    |> actor.start
-  {
-    Error(start_error) ->
-      Error("Could not start actor: " <> string.inspect(start_error))
-    Ok(actor.Started(data: musicplayer, ..)) -> {
-      process.spawn(fn() {
-        let assert Ok(_) = process.register(process.self(), input_keys_name)
-        handle_key(musicplayer, input_keys)
-      })
-
-      process.spawn(fn() {
-        let assert Ok(_) = process.register(process.self(), input_stream_name)
-        temp_input_stream(input_stream)
-      })
-
-      Ok(Nil)
-    }
-  }
-}
-
-fn handle_message(
-  state: State(mpv, input_inject, exit),
-  control: Control,
-) -> actor.Next(State(mpv, input_inject, exit), Control) {
-  case control {
-    control.Search -> {
-      process.send(state.input_inject, key.Continue([key.input_introducer]))
-
-      actor.continue(state)
-    }
-    control.TogglePlayPause -> {
-      echo "toggling play/pause"
-
-      process.send(state.mpv, mpv_control.TogglePlayPause)
-
-      case
-        process.call(state.mpv, 1000, fn(reply_to) {
-          mpv_control.GetPlaybackTime(reply_to)
-        })
-      {
-        Error(err) -> echo "! could not get playbackTime: " <> err.details
-        Ok(mpv_control.PlaybackTime(data: playback_time)) ->
-          echo "playbacktime from mpv: " <> float.to_string(playback_time)
-      }
-
-      actor.continue(state)
-    }
-    control.Exit -> {
-      // Close socket to `mpv`
-      process.call(state.mpv, 1000, fn(reply_to) { mpv_control.Exit(reply_to) })
-
-      // End main process
-      process.send(state.exit, Nil)
-      actor.stop()
-    }
-  }
-}
-
-/// `handle_key` listens to a subject onto which `input` will send messages with
-/// parsed `Key`s which will be mapped to `Control`s (if possible)
-fn handle_key(musicplayer: Subject(Control), input_keys: Subject(Key)) -> Nil {
-  let _ =
-    process.receive_forever(input_keys)
-    |> control.from_key
-    |> result.map(process.send(musicplayer, _))
-
-  handle_key(musicplayer, input_keys)
-}
-
-fn temp_input_stream(input_stream: Subject(List(String))) -> Nil {
-  let stream = process.receive_forever(input_stream)
-  echo "input stream: " <> string.inspect(stream)
-  temp_input_stream(input_stream)
-}

src/musicplayer/tcp/tcp.gleam

@@ -1,117 +0,0 @@
-import gleam/bit_array
-import gleam/erlang/atom
-import gleam/result
-
-import musicplayer/tcp/reason.{type Reason}
-
-pub type Socket
-
-// https://www.erlang.org/doc/apps/kernel/inet#t:address_family/0
-// local socket
-type Local {
-  Local(socket_path: String)
-}
-
-type ModeValue {
-  Binary
-}
-
-type TCPOption {
-  Active(Bool)
-  Mode(ModeValue)
-  Reuseaddr(Bool)
-  Ifaddr(Local)
-  ExitOnClose(Bool)
-}
-
-pub fn listen(socket_path: String) -> Result(Socket, Reason) {
-  let options = [
-    Mode(Binary),
-    Active(False),
-    Reuseaddr(True),
-    Ifaddr(Local(socket_path)),
-    ExitOnClose(False),
-  ]
-  // port zero with `local` address
-  let port = 0
-
-  gen_tcp_listen(port, options)
-}
-
-pub fn accept(listen_socket: Socket) -> Result(Socket, Reason) {
-  gen_tcp_accept(listen_socket)
-}
-
-pub fn receive(socket: Socket, timeout: Int) -> Result(String, Reason) {
-  // Get all bytes
-  let length = 0
-
-  use bits <- result.try(gen_tcp_recv(socket, length, timeout))
-  case bits |> bit_array.to_string {
-    // TODO what error is best?
-    Error(_) -> Error(reason.Ebadmsg)
-    Ok(s) -> Ok(s)
-  }
-}
-
-pub fn connect(socket_path: String) -> Result(Socket, Reason) {
-  let options = [Mode(Binary), Active(False)]
-
-  // port zero with `local` address
-  let port = 0
-
-  // timeout in ms
-  let timeout = 1000
-
-  gen_tcp_connect(Local(socket_path), port, options, timeout)
-}
-
-pub fn send(socket: Socket, message: String) -> Result(Nil, Reason) {
-  gen_tcp_send(socket, bit_array.from_string(message))
-}
-
-pub fn close(socket: Socket) -> Nil {
-  gen_tcp_close(socket)
-}
-
-pub fn shutdown(socket: Socket) -> Result(Nil, Reason) {
-  let how = atom.create("write")
-  gen_tcp_shutdown(socket, how)
-}
-
-// https://www.erlang.org/doc/apps/kernel/gen_tcp.html#listen/2
-@external(erlang, "gen_tcp", "listen")
-fn gen_tcp_listen(port: Int, option: List(TCPOption)) -> Result(Socket, Reason)
-
-// https://www.erlang.org/doc/apps/kernel/gen_tcp.html#accept/1
-@external(erlang, "gen_tcp", "accept")
-fn gen_tcp_accept(listen_socket: Socket) -> Result(Socket, Reason)
-
-// https://www.erlang.org/doc/apps/kernel/gen_tcp.html#recv/3
-@external(erlang, "gen_tcp", "recv")
-fn gen_tcp_recv(
-  socket: Socket,
-  length: Int,
-  timeout: Int,
-) -> Result(BitArray, Reason)
-
-// https://www.erlang.org/doc/apps/kernel/gen_tcp.html#connect/4
-@external(erlang, "gen_tcp", "connect")
-fn gen_tcp_connect(
-  address: Local,
-  port: Int,
-  options: List(TCPOption),
-  timeout: Int,
-) -> Result(Socket, Reason)
-
-// https://www.erlang.org/doc/apps/kernel/gen_tcp.html#send/2
-@external(erlang, "tcp_ffi", "send")
-fn gen_tcp_send(socket: Socket, packet: BitArray) -> Result(Nil, Reason)
-
-// https://www.erlang.org/doc/apps/kernel/gen_tcp.html#close/1
-@external(erlang, "gen_tcp", "close")
-fn gen_tcp_close(socket: Socket) -> Nil
-
-// https://www.erlang.org/doc/apps/kernel/gen_tcp.html#shutdown/2
-@external(erlang, "tcp_ffi", "shutdown")
-fn gen_tcp_shutdown(socket: Socket, how: atom.Atom) -> Result(Nil, Reason)

src/musicplayer/tcp/tcp_ffi.erl

@@ -1,14 +0,0 @@
--module(tcp_ffi).
--export([send/2, shutdown/2]).
-
-send(Socket, Packet) ->
-  case gen_tcp:send(Socket, Packet) of
-    ok -> {ok, nil};
-    Res -> Res
-  end.
-
-shutdown(Socket, How) ->
-  case gen_tcp:shutdown(Socket, How) of
-    ok -> {ok, nil};
-    Res -> Res
-  end.

src/tcp/tcp.gleam

@@ -0,0 +1,57 @@
+import gleam/bytes_tree
+
+import tcp/reason.{type Reason}
+
+pub type Socket
+
+// https://www.erlang.org/doc/apps/kernel/inet#t:address_family/0
+// local socket
+type Local {
+  Local(socket_path: String)
+}
+
+type ModeValue {
+  Binary
+}
+
+type TCPOption {
+  Active(Bool)
+  Mode(ModeValue)
+}
+
+pub fn connect(socket_path: String) -> Result(Socket, Reason) {
+  let options = [Mode(Binary), Active(False)]
+
+  // timeout in ms
+  let timeout = 1000
+
+  gen_tcp_connect(Local(socket_path), 0, options, timeout)
+}
+
+pub fn send(socket: Socket, message: String) -> Result(Nil, Reason) {
+  gen_tcp_send(socket, bytes_tree.from_string(message))
+}
+
+pub fn close(socket: Socket) -> Nil {
+  gen_tcp_close(socket)
+}
+
+// https://www.erlang.org/doc/apps/kernel/gen_tcp.html#connect/4
+@external(erlang, "gen_tcp", "connect")
+fn gen_tcp_connect(
+  address: Local,
+  port: Int,
+  options: List(TCPOption),
+  timeout: Int,
+) -> Result(Socket, Reason)
+
+// https://www.erlang.org/doc/apps/kernel/gen_tcp.html#send/2
+@external(erlang, "ipc_ffi", "send")
+fn gen_tcp_send(
+  socket: Socket,
+  packet: bytes_tree.BytesTree,
+) -> Result(Nil, Reason)
+
+// https://www.erlang.org/doc/apps/kernel/gen_tcp.html#close/1
+@external(erlang, "gen_tcp", "close")
+fn gen_tcp_close(socket: Socket) -> Nil

src/tcp/tcp_ffi.erl

@@ -0,0 +1,8 @@
+-module(tcp_ffi).
+-export([send/2]).
+
+send(Socket, Packet) ->
+  case gen_tcp:send(Socket, Packet) of
+    ok -> {ok, nil};
+    Res -> Res
+  end.

test/echo_server.gleam

@@ -1,81 +0,0 @@
-import gleam/erlang/process.{type Subject}
-import gleam/io
-import gleam/otp/actor
-import gleam/result
-import gleam/string
-
-import musicplayer/tcp/reason.{type Reason}
-import musicplayer/tcp/tcp
-
-pub type Message {
-  Shutdown
-  ReadyToAccept(subject: Subject(Message), listen_socket: tcp.Socket)
-}
-
-pub fn new(socket_path: String) -> Result(tcp.Socket, String) {
-  let server = actor.new(Nil) |> actor.on_message(handle_message) |> actor.start
-
-  case tcp.listen(socket_path), server {
-    Error(r), _ -> Error(reason.to_string(r))
-    _, Error(start_error) ->
-      case start_error {
-        actor.InitExited(_) -> Error("InitExited")
-        actor.InitFailed(_) -> Error("InitFailed")
-        actor.InitTimeout -> Error("InitTimeout")
-      }
-    Ok(listen_socket), Ok(b) -> {
-      let subject = b.data
-      actor.send(subject, ReadyToAccept(subject, listen_socket))
-      Ok(listen_socket)
-    }
-  }
-}
-
-fn handle_message(_: Nil, message: Message) -> actor.Next(Nil, Message) {
-  case message {
-    Shutdown -> actor.stop()
-
-    ReadyToAccept(subject, listen_socket) -> {
-      case tcp.accept(listen_socket) {
-        Error(r) ->
-          actor.stop_abnormal(
-            "Could not accept connection :" <> reason.to_string(r),
-          )
-        Ok(socket) -> {
-          case receive_from_connection(socket) {
-            Error(r) ->
-              io.println_error(
-                "Failed to receive from connection :" <> reason.to_string(r),
-              )
-            Ok(_) -> Nil
-          }
-
-          actor.send(subject, ReadyToAccept(subject, listen_socket))
-          actor.continue(Nil)
-        }
-      }
-    }
-  }
-}
-
-fn receive_from_connection(socket: tcp.Socket) -> Result(Nil, Reason) {
-  result.try(receive_until_closed(socket, ""), fn(data) {
-    let _ = tcp.send(socket, data)
-    tcp.close(socket)
-    Ok(Nil)
-  })
-}
-
-fn receive_until_closed(
-  socket: tcp.Socket,
-  result: String,
-) -> Result(String, Reason) {
-  case tcp.receive(socket, 10_000) {
-    Error(reason.Closed) -> Ok(result)
-    Error(err) -> Error(err)
-    Ok(data) -> {
-      let result = data |> string.append(result, _)
-      receive_until_closed(socket, result)
-    }
-  }
-}

test/musicplayer/control_test.gleam

@@ -1,24 +0,0 @@
-import gleam/list
-import gleeunit
-
-import musicplayer/control.{type Control}
-import musicplayer/input/key.{type Key, Char}
-
-pub fn main() -> Nil {
-  gleeunit.main()
-}
-
-type TestCase {
-  TestCase(key: Key, expected: Result(Control, Nil))
-}
-
-pub fn control_from_key_test() {
-  let test_cases = [
-    TestCase(Char(" "), Ok(control.TogglePlayPause)),
-    TestCase(Char("q"), Ok(control.Exit)),
-  ]
-
-  list.each(test_cases, fn(tc) {
-    assert tc.expected == control.from_key(tc.key)
-  })
-}

test/musicplayer/input/input_test.gleam

@@ -1,42 +0,0 @@
-import gleam/list
-import gleeunit
-
-import musicplayer/input/key.{type Key, Char, csi, esc, input_introducer as ii}
-
-pub fn main() -> Nil {
-  gleeunit.main()
-}
-
-type TestCase {
-  TestCase(input: List(String), expected: Key)
-}
-
-pub fn key_from_list_test() {
-  let base_tests = [TestCase([], key.Continue([]))]
-
-  let char_tests = [TestCase(["c"], Char("c"))]
-
-  let escape_tests = [
-    TestCase([esc, csi], key.Continue([esc, csi])),
-    TestCase([esc], key.Continue([esc])),
-
-    TestCase([esc, csi, "D"], key.Left),
-    TestCase([esc, csi, "C"], key.Right),
-    TestCase([esc, csi, "A"], key.Up),
-    TestCase([esc, csi, "B"], key.Down),
-  ]
-
-  let input_tests = [
-    TestCase([ii], key.Continue([ii])),
-    TestCase([ii, "a"], key.Continue([ii, "a"])),
-    TestCase([ii, "a", "b"], key.Continue([ii, "ab"])),
-    TestCase([ii, "ab", "\u{007F}"], key.Continue([ii, "a"])),
-    TestCase([ii, "ab", "\r"], key.Input("ab")),
-  ]
-
-  let test_cases = [base_tests, char_tests, escape_tests, input_tests]
-
-  list.each(list.flatten(test_cases), fn(tc) {
-    assert tc.expected == key.from_list(tc.input)
-  })
-}

test/musicplayer/mpv/mpv_test.gleam

@@ -1,15 +0,0 @@
-import gleeunit
-
-import musicplayer/mpv/internal as control_internal
-
-pub fn main() -> Nil {
-  gleeunit.main()
-}
-
-pub fn parse_playback_time_test() {
-  let json_string =
-    "{\"data\":\"123.456789\",\"request_id\":0,\"error\":\"success\"}\n"
-
-  let assert Ok(data) = control_internal.parse_playback_time(json_string)
-  assert data == 123.456789
-}

test/musicplayer/tcp/tcp_test.gleam

@@ -1,30 +0,0 @@
-import gleam/list
-import gleeunit
-import simplifile
-
-import echo_server
-import musicplayer/tcp/tcp
-
-pub fn main() -> Nil {
-  gleeunit.main()
-}
-
-pub fn tcp_send_shutdown_receive_test() {
-  let socket_path = "/tmp/musicplayer-test.sock"
-
-  let assert Ok(_) = echo_server.new(socket_path)
-  let assert Ok(socket) = tcp.connect(socket_path)
-
-  let messages = ["hello, ", "world!\n"]
-  list.each(messages, fn(message) {
-    let assert Ok(_) = tcp.send(socket, message)
-  })
-
-  let assert Ok(_) = tcp.shutdown(socket)
-
-  let timeout_ms = 100
-  assert Ok("hello, world!\n") == tcp.receive(socket, timeout_ms)
-
-  // TODO find better way to always do cleanup
-  simplifile.delete(socket_path)
-}

test/musicplayer_test.gleam

@@ -3,3 +3,11 @@ import gleeunit
 pub fn main() -> Nil {
   gleeunit.main()
 }
+
+// gleeunit test functions end in `_test`
+pub fn hello_world_test() {
+  let name = "Joe"
+  let greeting = "Hello, " <> name <> "!"
+
+  assert greeting == "Hello, Joe!"
+}