{
	"schemaVersion": "1.0",
	"version": "1.1",
	"name": "Custom Ruleset",
    "rules":[        
      {
        "target": {
          "type": "Database",
		  "engineEdition": "OnPremises, ManagedInstance",
		  "version": [
			"[11.0,11.0.7001.0)",
			"[12.0,12.0.6259.0)",
			"[13.0,)"
			],
		  "platform": "/Windows|Linux/"
        },
		"id": "DBSpaceAvailable",
		"itemType": "definition",
        "displayName": "Database files have little free space",
		"description": "Average available space in all the database files is less than the threshold.",
        "message": "Database has only @{SPACEAVAILABLEPERC}% of free space (threshold is set to @{threshold}%). Total space: @{SPACETOTALMB} MB. Free space: @{SPACEAVAILABLEMB} MB",
		"probes": ["DBSpaceAvailable"],
		"threshold": 25,
        "condition": [
			{"greater": ["@SPACEAVAILABLEPERC", "@threshold"]}
		]
      }
    ],
	"probes":{
		"DBSpaceAvailable": [
			{
				"type": "SQL",
				"target": {
				"type": "Database",
				"engineEdition": "OnPremises, ManagedInstance",
				"platform": "/Windows|Linux/"
				},
				"implementation": {
					"useDatabase": true, 
					"query":
					"SELECT convert(decimal(12,2),((sum (convert(decimal(12,2),round(a.size/128.000,2))) - sum(convert(decimal(12,2),round(fileproperty(a.name,'SpaceUsed')/128.000,2)))) /sum (convert(decimal(12,2),round(a.size/128.000,2)))*100)) as SPACEAVAILABLEPERC , SUM(convert(decimal(12,2),round(a.size/128.000,2))) as SPACETOTALMB , SUM(convert(decimal(12,2),round(fileproperty(a.name,'SpaceUsed')/128.000,2))) as SPACEUSEDMB , SUM(convert(decimal(12,2),round((a.size-fileproperty(a.name,'SpaceUsed'))/128.000,2))) as SPACEAVAILABLEMB FROM dbo.sysfiles a  WHERE groupid <> 0;"
				}
			}
		]
	}
}