From e1dc3c1de7b1ea77556fdd64c635727b9f094332 Mon Sep 17 00:00:00 2001
From: Alexander Heldt <me@alexanderheldt.se>
Date: Tue, 18 Nov 2025 21:25:35 +0100
Subject: [PATCH] wip

---
 src/mpv/control.gleam |  4 +++
 src/mpv/mpv.gleam     | 75 +++++++++++++++++++++++++++++++++++++------
 2 files changed, 69 insertions(+), 10 deletions(-)

diff --git a/src/mpv/control.gleam b/src/mpv/control.gleam
index 690beaf..9db8c55 100644
--- a/src/mpv/control.gleam
+++ b/src/mpv/control.gleam
@@ -10,6 +10,8 @@ import tcp/tcp.{type Socket}
 pub type Control {
   TogglePlayPause
 
+  Search
+
   Exit
 }
 
@@ -18,6 +20,7 @@ pub type ControlError {
 }
 
 pub fn from_key(key: Key) -> Result(Control, Nil) {
+  echo key
   case key {
     key.Char(char) -> char_control(char)
     _ -> Error(Nil)
@@ -28,6 +31,7 @@ fn char_control(char: String) -> Result(Control, Nil) {
   case char {
     " " -> Ok(TogglePlayPause)
     "q" -> Ok(Exit)
+    "/" -> Ok(Search)
     _ -> Error(Nil)
   }
 }
diff --git a/src/mpv/mpv.gleam b/src/mpv/mpv.gleam
index ab8d2b1..cd170fe 100644
--- a/src/mpv/mpv.gleam
+++ b/src/mpv/mpv.gleam
@@ -4,13 +4,13 @@ import gleam/otp/actor
 import gleam/result
 import gleam/string
 
-import input/key
+import input/key.{type Key}
 import mpv/control.{type Control}
 import tcp/reason
 import tcp/tcp.{type Socket}
 
-type State(socket, exit) {
-  State(socket: Socket, exit: Subject(Nil))
+type State(socket, input, exit) {
+  State(socket: Socket, inject: Subject(Key), exit: Subject(Nil))
 }
 
 pub fn new(exit: Subject(Nil)) -> Result(Nil, String) {
@@ -20,8 +20,14 @@ pub fn new(exit: Subject(Nil)) -> Result(Nil, String) {
   case tcp.connect(socket_path) {
     Error(r) -> Error("Could not connect to mpv: " <> reason.to_string(r))
     Ok(socket) -> {
+      let input_name = process.new_name("input")
+      let input = process.named_subject(input_name)
+
+      let inject_name = process.new_name("inject")
+      let inject = process.named_subject(inject_name)
+
       case
-        actor.new(State(socket, exit))
+        actor.new(State(socket, inject, exit))
         |> actor.on_message(handle_message)
         |> actor.start
       {
@@ -30,7 +36,29 @@ pub fn new(exit: Subject(Nil)) -> Result(Nil, String) {
         Ok(actor.Started(data:, ..)) -> {
           echo "waiting for input"
           key.start_raw_shell()
-          process.spawn(fn() { read_input(data) })
+
+          // read_input should just have  access to input, for sending
+
+          // input hnadler should register both inject and input
+          process.spawn(fn() {
+            echo "registering?"
+            let register_input = process.register(process.self(), input_name)
+            let register_inject = process.register(process.self(), inject_name)
+
+            case register_input, register_inject {
+              Ok(_), Ok(_) -> {
+                echo "registered both"
+                input_handler(data, input, inject)
+              }
+              _, _ -> {
+                echo "failed to register"
+                Error("TODO panic?")
+              }
+            }
+          })
+
+          process.spawn(fn() { read_input(input) })
+
           Ok(Nil)
         }
       }
@@ -39,10 +67,14 @@ pub fn new(exit: Subject(Nil)) -> Result(Nil, String) {
 }
 
 fn handle_message(
-  state: State(socket, exit),
+  state: State(socket, inject, exit),
   control: Control,
-) -> actor.Next(State(socket, exit), Control) {
+) -> actor.Next(State(socket, inject, exit), Control) {
   case control {
+    control.Search -> {
+      process.send(state.inject, key.Continue(["$"]))
+      actor.continue(state)
+    }
     control.TogglePlayPause -> {
       echo "toggling play/pause"
 
@@ -65,14 +97,37 @@ fn handle_message(
   }
 }
 
-fn read_input(subject: Subject(Control)) -> Nil {
+fn read_input(input: Subject(Control)) -> Nil {
+  echo "### read_input"
   case
     key.read_input_until_key([])
     |> control.from_key
   {
     Error(_) -> Nil
-    Ok(control) -> process.send(subject, control)
+    Ok(control) -> process.send(input, control)
   }
 
-  read_input(subject)
+  read_input(input)
+}
+
+fn input_handler(
+  actor: Subject(Control),
+  input: Subject(Control),
+  inject: Subject(Key),
+) {
+  echo "### input_handler"
+  case
+    process.new_selector()
+    |> process.select_map(input, fn(i) { Ok(i) })
+    |> process.select_map(inject, control.from_key)
+    |> process.selector_receive_forever
+  {
+    Error(_) -> Nil
+    Ok(c) -> {
+      echo "input_handler: " <> string.inspect(c)
+      process.send(actor, c)
+    }
+  }
+
+  input_handler(actor, input, inject)
 }