Fixed health checker.

modules/checkers/health-checker.js

@@ -5,6 +5,7 @@ import https     from "https"
 
 const log = getLogger("Health Checker", settings.checkers["health-checker"].color)
 
+// This function is a mess -- I know.
 function checkService(serviceDomain) {
     log(`Checking service '${serviceDomain}'`)
     return new Promise(
@@ -15,10 +16,12 @@ function checkService(serviceDomain) {
                 path:     "/",
                 method:   "GET"
             }, res => {
-                if (res.statusCode === 200) resolve(`Service '${serviceDomain}' seems to be running!`)
-                res.on("error", () => reject(`Service '${serviceDomain}' seems to have stopped!`))
+                res.on("error", () => reject())
+                res.on("end",   () => res.statusCode === 200 ? resolve() : reject())
+                res.on("close", () => res.statusCode === 200 ? resolve() : reject())
+                return res.statusCode === 200 ? resolve() : reject()
             })
-            req.on("error", () => reject(`Service '${serviceDomain}' seems to have stopped!`))
+            req.on("error", () => reject())
             req.end()
         }
     )
@@ -31,11 +34,12 @@ export function start(sendMessage) {
     function checkServices(serviceDomains) {
         for (const serviceDomain of serviceDomains) {
             checkService(serviceDomain).then(
-                status => log(status)
+                () => log(`Service '${serviceDomain}' seems to be running!`)
             ).catch(
-                status => {
-                    log(status)
-                    sendMessage(status)
+                () => {
+                    const message = `**IMPORTANT!** Service '${serviceDomain}' seems to have stopped!`
+                    log(message)
+                    sendMessage(message)
                 }
             )
         }