From 9b21a971fef408445530c11e7f7a808334c1103d Mon Sep 17 00:00:00 2001
From: Mikayla Fischler <mikayla@ky8.io>
Date: Wed, 20 Jul 2022 13:28:58 -0400
Subject: [PATCH] #74 close supervisor connection on exit, start of touch event
 handling

---
 coordinator/coordinator.lua | 12 +++++++++++-
 coordinator/renderer.lua    | 17 ++++++++++++++++-
 coordinator/startup.lua     | 13 ++++++++++---
 3 files changed, 37 insertions(+), 5 deletions(-)

diff --git a/coordinator/coordinator.lua b/coordinator/coordinator.lua
index 9a72cdb..5972bfc 100644
--- a/coordinator/coordinator.lua
+++ b/coordinator/coordinator.lua
@@ -44,7 +44,9 @@ function coordinator.configure_monitors(num_units)
     ---@class monitors_struct
     local monitors = {
         primary = nil,
-        unit_displays = {}
+        primary_name = "",
+        unit_displays = {},
+        unit_name_map = {}
     }
 
     local monitors_avail = ppm.get_monitor_list()
@@ -89,6 +91,7 @@ function coordinator.configure_monitors(num_units)
     util.filter_table(names, function (x) return x ~= iface_primary_display end)
 
     monitors.primary = ppm.get_periph(iface_primary_display)
+    monitors.primary_name = iface_primary_display
 
     -------------------
     -- UNIT DISPLAYS --
@@ -139,6 +142,7 @@ function coordinator.configure_monitors(num_units)
 
     for i = 1, #unit_displays do
         monitors.unit_displays[i] = ppm.get_periph(unit_displays[i])
+        monitors.unit_name_map[i] = unit_displays[i]
     end
 
     return true, monitors
@@ -251,6 +255,12 @@ function coordinator.comms(version, modem, sv_port, sv_listen, api_listen, sv_wa
         _open_channels()
     end
 
+    -- close the connection to the server
+    function public.close()
+        sv_watchdog.cancel()
+        _send_sv(PROTOCOLS.SCADA_MGMT, SCADA_MGMT_TYPES.CLOSE, {})
+    end
+
     -- attempt to connect to the subervisor
     ---@param timeout_s number timeout in seconds
     ---@param tick_dmesg_waiting function callback to tick dmesg waiting
diff --git a/coordinator/renderer.lua b/coordinator/renderer.lua
index 59fafcf..2e49026 100644
--- a/coordinator/renderer.lua
+++ b/coordinator/renderer.lua
@@ -1,4 +1,4 @@
-local log  = require("scada-common.log")
+local log = require("scada-common.log")
 
 local main_view = require("coordinator.ui.layout.main_view")
 local unit_view = require("coordinator.ui.layout.unit_view")
@@ -99,4 +99,19 @@ function renderer.close_ui(recolor)
     engine.dmesg_window.redraw()
 end
 
+-- handle a touch event
+---@param event monitor_touch
+function renderer.handle_touch(event)
+    if event.monitor == engine.monitors.primary_name then
+        ui.main_layout.handle_touch(event)
+    else
+        for id, monitor in pairs(engine.monitors.unit_name_map) do
+            if event.monitor == monitor then
+                local layout = ui.unit_layouts[id]  ---@type graphics_element
+                layout.handle_touch(event)
+            end
+        end
+    end
+end
+
 return renderer
diff --git a/coordinator/startup.lua b/coordinator/startup.lua
index d0320c7..b6728f7 100644
--- a/coordinator/startup.lua
+++ b/coordinator/startup.lua
@@ -8,12 +8,14 @@ local log  = require("scada-common.log")
 local ppm  = require("scada-common.ppm")
 local util = require("scada-common.util")
 
+local core = require("graphics.core")
+
 local apisessions = require("coordinator.apisessions")
 local config      = require("coordinator.config")
 local coordinator = require("coordinator.coordinator")
 local renderer    = require("coordinator.renderer")
 
-local COORDINATOR_VERSION = "alpha-v0.3.5"
+local COORDINATOR_VERSION = "alpha-v0.3.6"
 
 local print = util.print
 local println = util.println
@@ -211,12 +213,17 @@ while ui_ok do
         -- got a packet
         local packet = coord_comms.parse_packet(param1, param2, param3, param4, param5)
         coord_comms.handle_packet(packet)
+    elseif event == "monitor_touch" then
+        -- handle a monitor touch event
+        renderer.handle_touch(core.events.touch(param1, param2, param3))
     end
 
     -- check for termination request
     if event == "terminate" or ppm.should_terminate() then
-        log_comms("terminate requested, closing sessions...")
-        println_ts("closing sessions...")
+        log_comms("terminate requested, closing supervisor connection")
+        coord_comms.close()
+        log_comms("closing api sessions...")
+        println_ts("closing api sessions...")
         apisessions.close_all()
         log_comms("api sessions closed")
         break