fix: dashboard fixes (Status column, Refresh without reload, RRD matching, Fleet Power range) and a Run Graph Automation action

CHANGELOG.md

@@ -8,6 +8,12 @@
 * feature: Add a per-UPS Timeout (seconds) setting, 5 by default and limited to 1-120, for `apcupsd` and NUT UPS'. NUT connects and conversations are now bounded by twice the timeout in total, and `apcaccess` is run through Cacti's `exec_with_timeout()` so a hung `apcaccess` can no longer stall the poller; a timed out `apcaccess` now records an error on the UPS
 * feature: Make the UPSes table on the Fleet Dashboard sort like the HMIB dashboards: click (or press Enter/Space on) a column header to sort and click again to reverse, in the card and in its maximize dialog
 * issue: Right-align the Load, Charge, Time Left, Est. Power and Last Updated columns of the Fleet Dashboard UPSes table
+* feature: Add a "Run Graph Automation" action to the UPSes list bulk-action dropdown. It runs Cacti's graph automation (the same as the Devices page's "Apply Automation Rules") for the Cacti Device linked to each selected UPS, creating the graphs, data sources and tree items its templates and automation rules call for, so a device that never got its graphs can be given them without leaving the plugin. Graphs that already exist are left alone, a UPS with no Cacti Device yet is skipped and reported, and the action needs the same realm as Cacti's own device action (Sites/Devices/Data)
+* issue: Centre the Status column of the Fleet Dashboard UPSes table
+* issue: Make the UPS Dashboard bullets and gauges find the Device Package's data sources. They looked for names the package does not use (`batt_volts`, `line_volts`, `output_volts`, `batt_charge`), so Battery Voltage, Line Voltage and Output Voltage never found an RRD even when the device had graphs. The RRD profile's consolidation functions are now checked first, and when an RRD has no MIN or MAX archive (for example one created from an older or customised profile) the window is bounded by its averages instead of leaving the bound blank. A device with no graphs has no RRD files, so it still has no min/avg/max history; the readings simply show the current value
+* issue: The bullet charts now label the ends of the track with the axis (0 and the full-scale value) and list the current, min, avg and max readings above it, leaving out any that are unknown instead of printing N/A; gauge captions do the same
+* feature: The Fleet Power gauge now shows min and max ticks and a min / avg / max caption like the other fleet gauges, derived from each UPS's load RRD scaled by its (constant) nominal power
+* issue: Changing the Refresh interval on the dashboards now applies it straight away, restarting or stopping the refresh timer, instead of forcing a full page reload; saves are sent one at a time so only a value that was actually saved takes effect, a failed save puts the dropdown (including Cacti's Select2 picker) back to the interval in force, and turning Refresh off puts Cacti's browser auto-logout timer back. The dashboard script is also now loaded before the script that starts the refresh, so the in-place refresh applies the first time the page is opened through Cacti's ajax navigation, not just on later visits
 * feature: Share the UPS Dashboard card arrangement across every UPS (graph cards stay per UPS since they belong to each device), hide N/A rows in the UPS Information card, combine Cable and Driver on one row, and add a per-UPS Estimated Power gauge card that reuses the shared nominal power x load % estimate
 * issue: Show N/A for a slave UPS's (e.g. ONLINE SLAVE) estimated power on the Fleet Dashboard and leave it out of the fleet power total, since its draw is already counted in its master's
 * feature: Estimate each UPS's power draw as nominal power x load % for UPSes that do not report real wattage, and show it on the Fleet Dashboard (an "Est. Power" tile, a new "Fleet Power" gauge card of total estimated watts against rated capacity, and an "Est. Power" column with a fleet total in the UPSes card) and as a sortable "Est. Power" column in the UPSes list

README.md

@@ -57,6 +57,15 @@ After you have installed the plugin, install the Device Package in the
 templates folder from Console > Import/Export > Import Package.  This 
 Device Template will be used for showing available graphs.
 
+The dashboards read each reading's min, average and max from the RRD files of
+the UPS's Cacti Device, so the device needs its graphs.  They are created when
+the device is first added, but if a device has none (for example the Device
+Package was imported afterwards), tick the UPS on the UPSes page and choose
+`Run Graph Automation` from the action dropdown.  It runs Cacti's graph
+automation for the linked device, the same as `Apply Automation Rules` on the
+Devices page, and leaves graphs that already exist alone.  It needs the
+`Sites/Devices/Data` permission.
+
 ## Monitoring UPS' with NUT
 
 Support for Network UPS Tools (NUT) is new in version 1.4.0.  The plugin talks

css/apcupsd.css

@@ -530,6 +530,13 @@
 	white-space: nowrap;
 }
 
+/* Centred columns, such as the status pill. Must outrank
+   ".apcupsdDashTable th, .apcupsdDashTable td { text-align: left }". */
+.apcupsdDashTable td.apcupsdDashCenter,
+.apcupsdDashTable th.apcupsdDashCenter {
+	text-align: center;
+}
+
 /* Sortable column headers (same behaviour as the HMIB dashboards): click or
    press Enter/Space to sort; the arrow shows the active direction. */
 .apcupsdDashTable th.apcupsdDashSortable {