new: add send script to chat

src/new/templates/rust/no-ui/chat/Cargo.toml_

@@ -2,6 +2,7 @@
 resolver = "2"
 members = [
     "{package_name}",
+    "send",
 ]
 
 [profile.release]

src/new/templates/rust/no-ui/chat/pkg/scripts.json

@@ -0,0 +1,13 @@
+{
+    "send.wasm": {
+        "root": false,
+        "public": false,
+        "request_networking": false,
+        "request_capabilities": [
+            "{package_name}:{package_name}:{publisher}"
+        ],
+        "grant_capabilities": [
+            "{package_name}:{package_name}:{publisher}"
+        ]
+    }
+}

src/new/templates/rust/no-ui/chat/send/Cargo.toml_

@@ -0,0 +1,17 @@
+[package]
+name = "send"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
+anyhow = "1.0"
+kinode_process_lib = { git = "https://github.com/kinode-dao/process_lib", tag = "v0.6.0" }
+serde = { version = "1.0", features = ["derive"] }
+serde_json = "1.0"
+wit-bindgen = { git = "https://github.com/bytecodealliance/wit-bindgen", rev = "21a46c7" }
+
+[lib]
+crate-type = ["cdylib"]
+
+[package.metadata.component]
+package = "kinode:process"

src/new/templates/rust/no-ui/chat/send/src/lib.rs

@@ -0,0 +1,62 @@
+use serde::{Deserialize, Serialize};
+
+use kinode_process_lib::{
+    await_next_request_body, call_init, println, Address, Message, Request,
+};
+
+wit_bindgen::generate!({
+    path: "wit",
+    world: "process",
+    exports: {
+        world: Component,
+    },
+});
+
+#[derive(Debug, Serialize, Deserialize)]
+enum ChatRequest {
+    Send { target: String, message: String },
+    History,
+}
+
+#[derive(Debug, Serialize, Deserialize)]
+enum ChatResponse {
+    Ack,
+    History { messages: MessageArchive },
+}
+
+type MessageArchive = Vec<(String, String)>;
+
+call_init!(init);
+fn init(our: Address) {
+    let Ok(body) = await_next_request_body() else {
+        println!("failed to get args!");
+        return;
+    };
+
+    let args = String::from_utf8(body).unwrap_or_default();
+
+    let Some((target, message)) = args.split_once(" ") else {
+        println!("usage:\nsend:{package_name}:{publisher} target message");
+        return;
+    };
+
+    let Ok(Ok(Message::Response { body, .. })) =
+        Request::to((our.node(), ("{package_name}", "{package_name}", "{publisher}")))
+            .body(
+                serde_json::to_vec(&ChatRequest::Send {
+                    target: target.into(),
+                    message: message.into(),
+                })
+                .unwrap(),
+            )
+            .send_and_await_response(5)
+    else {
+        println!("did not receive expected Response from {package_name}:{package_name}:{publisher}");
+        return;
+    };
+
+    let Ok(ChatResponse::Ack) = serde_json::from_slice(&body) else {
+        println!("did not receive expected Ack from {package_name}:{package_name}:{publisher}");
+        return;
+    };
+}