From 906d265ce4400e17a541ff163b46c1f084f8cdc8 Mon Sep 17 00:00:00 2001
From: makefu <github@syntax-fehler.de>
Date: Tue, 31 Aug 2021 15:14:37 +0200
Subject: [PATCH] ma ham: consolidate button management

---
 .../home/ham/automation/keller_buttons.nix    |  7 --
 .../home/ham/automation/ladestecker_timer.nix | 24 ++++++
 .../home/ham/automation/light_buttons.nix     |  4 +-
 2configs/home/ham/default.nix                 |  2 +-
 2configs/home/ham/lib/default.nix             | 76 +++++++++++++++++++
 5 files changed, 104 insertions(+), 9 deletions(-)
 delete mode 100644 2configs/home/ham/automation/keller_buttons.nix
 create mode 100644 2configs/home/ham/automation/ladestecker_timer.nix

diff --git a/2configs/home/ham/automation/keller_buttons.nix b/2configs/home/ham/automation/keller_buttons.nix
deleted file mode 100644
index 598dc7d..0000000
--- a/2configs/home/ham/automation/keller_buttons.nix
+++ /dev/null
@@ -1,7 +0,0 @@
-let
-  inherit (../lib) btn_cycle_light;
-in {
-  services.home-assistant.config.automation = [
-    (btn_cycle_light "light.keller_osram" "keller_btn1" 128)
-  ];
-}
diff --git a/2configs/home/ham/automation/ladestecker_timer.nix b/2configs/home/ham/automation/ladestecker_timer.nix
new file mode 100644
index 0000000..8e87712
--- /dev/null
+++ b/2configs/home/ham/automation/ladestecker_timer.nix
@@ -0,0 +1,24 @@
+let
+  relay = "switch.terrasse_plug_relay";
+  timeout = "300";
+in {
+  services.home-assistant.config.automation = [
+      { alias = "Always turn off Charging station after ${toString (timeout)}m";
+        trigger = [
+          {
+            platform = "state";
+            entity_id = relay;
+            to = "on";
+            for.minutes = timeout;
+          }
+        ];
+        action =
+        [
+          {
+            service = "homeassistant.turn_off";
+            entity_id =  [ relay ];
+          }
+        ];
+      }
+  ];
+}
diff --git a/2configs/home/ham/automation/light_buttons.nix b/2configs/home/ham/automation/light_buttons.nix
index b3c9ecd..62fc87b 100644
--- a/2configs/home/ham/automation/light_buttons.nix
+++ b/2configs/home/ham/automation/light_buttons.nix
@@ -1,6 +1,6 @@
 
 let
-  inherit (../lib) btn_cycle_light;
+  inherit (import ../lib) btn_cycle_light;
   turn_off_all = btn: #lights:
   {
     alias = "Turn of all lights via ${btn} double click";
@@ -19,6 +19,8 @@ in {
   services.home-assistant.config.automation = [
     # (btn_cycle_light "light.arbeitszimmerbeleuchtung" "arbeitszimmer_btn1")
     (btn_cycle_light "light.schlafzimmer_komode_osram" "schlafzimmer_btn2" 128)
+
+    (btn_cycle_light "light.keller_osram" "keller_btn1" 128)
     # (btn_cycle_light "light.wohnzimmerbeleuchtung" "wohnzimmer_btn3")
     (turn_off_all "schlafzimmer_btn2" )
   ];
diff --git a/2configs/home/ham/default.nix b/2configs/home/ham/default.nix
index 79f26a0..cb42f32 100644
--- a/2configs/home/ham/default.nix
+++ b/2configs/home/ham/default.nix
@@ -1,5 +1,4 @@
 { pkgs, lib, config, ... }:
-
 # Ideas:
 ## wake-on-lan server
 ##
@@ -33,6 +32,7 @@ in {
     ./automation/firetv_restart.nix
     ./automation/light_buttons.nix
     ./automation/wohnzimmer_rf_fernbedienung.nix
+    ./automation/ladestecker_timer.nix
     #./automation/giesskanne.nix
     ./automation/pflanzen_giessen_erinnerung.nix
     #./automation/urlaub.nix
diff --git a/2configs/home/ham/lib/default.nix b/2configs/home/ham/lib/default.nix
index 45c8613..75be527 100644
--- a/2configs/home/ham/lib/default.nix
+++ b/2configs/home/ham/lib/default.nix
@@ -40,5 +40,81 @@ in
       entity = "firetv";
     };
   };
+
   zigbee.prefix = "/ham/zigbee";
+
+  btn_cycle_light = light: btn: halfbright:
+  let
+    maxbright = 255;
+    transition = 0.2; # seconds
+  in
+  # this function implements a simple state machine based on the state and brightness of the light (light must support brightness
+  {
+    alias = "Cycle through states of ${light} via button ${btn}";
+    trigger = {
+      platform = "state";
+      entity_id = "sensor.${btn}_click";
+      to = "single";
+    };
+    action = {
+      choose = [
+        {
+          # state 0: off to half
+          conditions = {
+            condition = "template";
+            value_template = ''{{ states("${light}")  == "off" }}'';
+          };
+          sequence = [
+            {
+              service = "light.turn_on";
+              data = {
+                entity_id = light;
+                brightness = halfbright;
+              };
+            }
+          ];
+        }
+        {
+          # state 1: half to full
+          conditions = {
+            condition = "template";
+            value_template = ''{{ states('${light}')  == 'on' and ( ${toString (halfbright - 1)} <= state_attr("${light}","brightness") <= ${toString (halfbright + 1)})}}'';
+          };
+          sequence = [
+            {
+              service = "light.turn_on";
+              data = {
+                entity_id = light;
+                brightness = maxbright;
+              };
+            }
+          ];
+        }
+        {
+          # state 2: full to off
+          conditions =  {
+            condition = "template";
+            # TODO: it seems like the devices respond with brightness-1 , maybe off-by-one somewhere?
+            value_template = ''{{ states("${light}")  == "on" and state_attr("${light}","brightness") >= ${toString (maxbright - 1)}}}'';
+          };
+          sequence = [
+            {
+              service = "light.turn_off";
+              data = {
+                entity_id = light;
+              };
+            }
+          ];
+        }
+      ];
+      # default: on to off
+      # this works because state 0 checks for "state == off"
+      default = [{
+        service = "light.turn_off";
+        data = {
+          entity_id = light;
+        };
+      }];
+    };
+  };
 }