From de487d18c5f02b32e570b17d3aff76e81fd1d16a Mon Sep 17 00:00:00 2001
From: torque <torque@epicyclic.dev>
Date: Thu, 18 Jul 2024 19:42:47 -0700
Subject: [PATCH] rotctl: add autopark functionality

Since gpredict doesn't have a park button or anything, this will just
automatically park the antenna when the gpredict rotator controller
disconnects. This may or may not actually be a good idea. We will see.
---
 src/Config.zig | 2 ++
 src/RotCtl.zig | 7 ++++++-
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/src/Config.zig b/src/Config.zig
index 8d5ed1c..4652281 100644
--- a/src/Config.zig
+++ b/src/Config.zig
@@ -92,6 +92,7 @@ pub fn validate(self: Config, err_writer: anytype) !void {
 rotctl: RotControlConfig = .{
     .listen_address = "127.0.0.1",
     .listen_port = 4533,
+    .autopark = false,
 },
 labjack: LabjackConfig = .{
     .device = .autodetect,
@@ -151,6 +152,7 @@ pub const MinMax = struct {
 const RotControlConfig = struct {
     listen_address: []const u8,
     listen_port: u16,
+    autopark: bool,
 };
 
 const LabjackConfig = struct {
diff --git a/src/RotCtl.zig b/src/RotCtl.zig
index b42073c..da019e8 100644
--- a/src/RotCtl.zig
+++ b/src/RotCtl.zig
@@ -37,7 +37,8 @@ pub fn run(allocator: std.mem.Allocator) !void {
         const client = try server.accept();
         defer {
             log.info("disconnecting client", .{});
-            interface.rotator.stop();
+            if (!config.rotctl.autopark)
+                interface.rotator.stop();
             client.stream.close();
         }
 
@@ -60,6 +61,10 @@ pub fn run(allocator: std.mem.Allocator) !void {
                 std.mem.trim(u8, fbs.getWritten(), &std.ascii.whitespace),
             ) catch break;
         }
+
+        // loop ended due to client disconnect
+        if (interface.running and config.rotctl.autopark)
+            interface.rotator.startPark();
     }
 }