all: record and display the history of failed scan

In the main Reports struct, we record the failed ScanReport in separate
slices.
Those slices then displayed on the main page under "Fail history"
section.

1 files changed, 23 insertions, 0 deletions

diff --git a/reports.go b/reports.go
index 91ff2df..fdf472e 100644
--- a/reports.go
+++ b/reports.go
@@ -3,8 +3,31 @@
 
 package lilin
 
+import "sync"
+
+const failKeepSize = 600
+const failMax = failKeepSize + (failKeepSize / 3)
+
 // Reports contains the report for all services.
 type Reports struct {
 	Services map[string]*ServiceReport
 	Title    string
+	Fail     []ScanReport
+	sync.Mutex
+}
+
+// Store the service scan report.
+func (reports *Reports) Store(scanReport ScanReport) {
+	reports.Lock()
+	var svcReport = reports.Services[scanReport.Name]
+	svcReport.Store(scanReport)
+	if !scanReport.Success {
+		reports.Fail = append(reports.Fail, scanReport)
+		if len(reports.Fail) >= failMax {
+			var start = len(reports.Fail) - failKeepSize
+			copy(reports.Fail, reports.Fail[start:])
+			reports.Fail = reports.Fail[:failKeepSize-1]
+		}
+	}
+	reports.Unlock()
 }