From 36d5ff553a1d65d70da5251b8865d62294c929f6 Mon Sep 17 00:00:00 2001
From: Melody Horn <melody@boringcactus.com>
Date: Sun, 7 Mar 2021 09:12:47 -0700
Subject: tear it all up and implement super basic actors

---
 src/world.rs | 47 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 47 insertions(+)
 create mode 100644 src/world.rs

(limited to 'src/world.rs')

diff --git a/src/world.rs b/src/world.rs
new file mode 100644
index 0000000..53217e2
--- /dev/null
+++ b/src/world.rs
@@ -0,0 +1,47 @@
+use std::collections::HashMap;
+use std::sync::mpsc::{self, Receiver, Sender};
+use std::thread;
+
+use uuid::Uuid;
+
+use crate::actor::{Actorful, Value, Slot};
+
+pub struct ActorThreadId(Uuid);
+
+#[derive(Default)]
+pub struct World {
+    actor_types: HashMap<String, Box<dyn Actorful + Send>>,
+    actors: HashMap<ActorThreadId, String>,
+}
+
+impl World {
+    pub fn upsert_actor_type(&mut self, name: String, actor: Box<dyn Actorful + Send>) {
+        self.actor_types.insert(name, actor);
+    }
+
+    pub fn spawn_actor(&mut self, r#type: &str) -> (Uuid, HashMap<String, Sender<Value>>, HashMap<String, Receiver<Value>>) {
+        fn make_channels(slot: Slot) -> ((String, Sender<Value>), (String, Receiver<Value>)) {
+            let (sender, receiver) = mpsc::channel::<Value>();
+            ((slot.name.clone(), sender), (slot.name, receiver))
+        }
+
+        let actor = self.actor_types.get(r#type).unwrap();
+        let actor = actor.boxed_clone();
+        let input_slots = actor.inputs();
+        let (input_senders, input_receivers) = input_slots
+            .into_iter()
+            .map(make_channels)
+            .unzip();
+        let output_slots = actor.outputs();
+        let (output_senders, output_receivers) = output_slots
+            .into_iter()
+            .map(make_channels)
+            .unzip();
+        let id = Uuid::new_v4();
+        thread::Builder::new()
+            .name(id.to_string())
+            .spawn(move || actor.launch(input_receivers, output_senders, self))
+            .unwrap();
+        (id, input_senders, output_receivers)
+    }
+}
-- 
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