From 75fbb107b15d01179a4b772844144e0661240e77 Mon Sep 17 00:00:00 2001
From: Hans Hagen <pragma@wxs.nl>
Date: Tue, 7 Nov 2017 12:49:36 +0100
Subject: 2017-11-07 11:43:00

---
 scripts/context/lua/mtx-youless.lua | 68 ++++++++++++++++++++++++-------------
 1 file changed, 45 insertions(+), 23 deletions(-)

(limited to 'scripts/context/lua/mtx-youless.lua')

diff --git a/scripts/context/lua/mtx-youless.lua b/scripts/context/lua/mtx-youless.lua
index 740fdcb65..6c600517a 100644
--- a/scripts/context/lua/mtx-youless.lua
+++ b/scripts/context/lua/mtx-youless.lua
@@ -33,6 +33,7 @@ local helpinfo = [[
     <flag name="kwh"><short>summative kwh data</short></flag>
     <flag name="watt"><short>collected watt data</short></flag>
     <flag name="host"><short>ip address of device</short></flag>
+    <flag name="auto"><short>fetch kwh and watt data every hour</short></flag>
    </subcategory>
   </category>
  </flags>
@@ -42,6 +43,7 @@ local helpinfo = [[
    <subcategory>
     <example><command>mtxrun --script youless --collect --host=192.168.2.50 --kwh</command></example>
     <example><command>mtxrun --script youless --collect --host=192.168.2.50 --watt somefile.lua</command></example>
+    <example><command>mtxrun --script youless --collect --host=192.168.2.50 --auto file-prefix</command></example>
    </subcategory>
   </category>
  </examples>
@@ -61,17 +63,32 @@ scripts.youless = scripts.youless or { }
 
 function scripts.youless.collect()
     local host     = environment.arguments.host
-    local variant  = environment.arguments.kwh and "kwh" or environment.arguments.watt and "watt"
     local nobackup = environment.arguments.nobackup
     local nofile   = environment.arguments.nofile
     local password = environment.arguments.password
     local filename = environment.files[1]
-    if not variant then
-        report("provide variant --kwh or --watt")
-        return
-    else
+    local delay    = tonumber(environment.delay) or 12*60*60
+
+    local function fetch(filename,variant)
+        local data = utilities.youless.collect {
+            filename = filename,
+            host     = host,
+            variant  = variant,
+            nobackup = nobackup,
+            password = password,
+        }
+        if type(data) ~= "table" then
+            report("no data collected")
+        elseif filename == "" then
+            report("data collected but not saved")
+        end
         report("using variant %a",variant)
+        if filename ~= "" then
+            report("using file %a",filename)
+        end
+        report("current time %a",os.now())
     end
+
     if not host then
         host = "192.168.2.50"
         report("using default host %a",host)
@@ -81,25 +98,30 @@ function scripts.youless.collect()
     if nobackup then
         report("not backing up data file")
     end
-    if not filename and not nofile then
-        filename = formatters["youless-%s.lua"](variant)
-    end
-    if filename ~= "" then
-        report("using file %a",filename)
-    end
-    local data = utilities.youless.collect {
-        filename = filename,
-        host     = host,
-        variant  = variant,
-        nobackup = nobackup,
-        password = password,
-    }
-    if type(data) ~= "table" then
-        report("no data collected")
-    elseif filename == "" then
-        report("data collected but not saved")
+
+    if environment.arguments.auto then
+        local filename_kwh  = formatters["%s-kwh.lua" ](filename ~= "" and filename or "youless")
+        local filename_watt = formatters["%s-watt.lua"](filename ~= "" and filename or "youless")
+        while true do
+            fetch(filename_kwh,"kwh")
+            fetch(filename_watt,"watt")
+            report("sleeping for %i seconds",delay)
+            io.flush()
+            os.sleep(delay)
+        end
+    else
+        local variant  = environment.arguments.kwh and "kwh" or environment.arguments.watt and "watt"
+        if not variant then
+            report("provide variant --kwh or --watt")
+            return
+        end
+        if nofile then
+            filename = ""
+        elseif not filename or filename == "" then
+            filename = formatters["youless-%s.lua"](variant)
+        end
+        fetch(filename,variant)
     end
-    report("current time %a",os.now())
 end
 
 if environment.argument("collect") then
-- 
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