InitialHEADmaster

1 files changed, 64 insertions, 0 deletions

diff --git a/set.sh b/set.sh
new file mode 100755
index 0000000..3cd3551
--- /dev/null
+++ b/set.sh
@@ -0,0 +1,64 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+cd "$(dirname "$(realpath "$0")")"
+
+source functions.sh
+
+read_vars
+
+if [[ ! -f lights.txt ]]; then
+  echo >&2 'First run:'
+  echo >&2 '$ ./get_lights.sh >lights.txt'
+  exit 1
+fi
+
+if [[ $# -eq 0 || ($1 = "-h" || $1 = "--help") ]]; then
+  echo >&2 "Usage: $0 <light name> [commands...]"
+  echo >&2 "The light name is case-insensitive and may be any unambiguous substring of the full name."
+  echo >&2 "Commands:"
+  echo >&2 "- on:  turn on the light"
+  echo >&2 "- off:  turn off the light"
+  echo >&2 "- switch <n>:  turn on if n=1, off if n=0"
+  echo >&2 "- br <n>:  set brightness; n in [0, 100]"
+  [[ $# -eq 0 ]] && exit 1
+  exit 0
+fi
+
+namesubstr=$1
+
+matches=$(cut -d' ' -f2- lights.txt | grep -niF "$namesubstr" | cut -d: -f1 || true)
+[[ -z $matches ]] && { echo >&2 "Light not found"; exit 1; }
+[[ $(wc -l <<<"$matches") -gt 1 ]] && { echo >&2 "Multiple lights matched, name must be unambiguous"; exit 1; }
+lightid=$(sed -n "$matches s/ .*//p" <lights.txt)
+
+shift
+
+commandstr="{}"
+while [[ $# -gt 0 ]]; do
+  case "$1" in
+    on) commandstr="$commandstr * {on:{on:true}}"; shift ;;
+    off) commandstr="$commandstr * {on:{on:false}}"; shift ;;
+
+    switch)
+      [[ $# -lt 2 ]] && { echo >&2 "Not enough arguments to 'switch' command"; exit 1; }
+      if   [[ $2 = '1' ]]; then commandstr="$commandstr * {on:{on:true}}"
+      elif [[ $2 = '0' ]]; then commandstr="$commandstr * {on:{on:false}}"
+      else echo >&2 "Invalid argument to 'switch' command"; exit 1
+      fi
+      shift 2
+      ;;
+
+    br)
+      [[ $# -lt 2 ]] && { echo >&2 "Not enough arguments to 'br' command"; exit 1; }
+      commandstr="$commandstr * {dimming:{brightness:$2}}"
+      shift 2
+      ;;
+
+    *)
+      echo >&2 "Unrecognised command: '$1'"
+      exit 1
+  esac
+done
+
+hue_request resource/light/"$lightid" PUT "$(jq "$commandstr" <<<0)" >/dev/null