Initial commit

checker/evaluate.go

@@ -0,0 +1,67 @@
+// This file is part of the happyDomain (R) project.
+// Copyright (c) 2026 happyDomain
+// Authors: Pierre-Olivier Mercier, et al.
+
+package checker
+
+import (
+	"fmt"
+
+	sdk "git.happydns.org/checker-sdk-go/checker"
+)
+
+// Evaluate turns an AliasData into one CheckState per finding. When the run
+// produced no findings, it returns a single StatusOK state describing the
+// healthy alias.
+func Evaluate(data *AliasData) []sdk.CheckState {
+	if len(data.Findings) == 0 {
+		msg := fmt.Sprintf("Alias chain for %s is healthy", data.Owner)
+		if data.FinalTarget != "" && data.FinalTarget != data.Owner {
+			msg = fmt.Sprintf("%s → %s resolves cleanly", data.Owner, data.FinalTarget)
+		}
+		return []sdk.CheckState{{
+			Status:  sdk.StatusOK,
+			Message: msg,
+			Subject: data.Owner,
+			Meta: map[string]any{
+				"owner":        data.Owner,
+				"apex":         data.Apex,
+				"final_target": data.FinalTarget,
+				"final_a":      data.FinalA,
+				"final_aaaa":   data.FinalAAAA,
+				"chain_length": len(data.Chain),
+			},
+		}}
+	}
+
+	out := make([]sdk.CheckState, 0, len(data.Findings))
+	for _, f := range data.Findings {
+		subject := f.Subject
+		if subject == "" {
+			subject = data.Owner
+		}
+		state := sdk.CheckState{
+			Status:  severityToStatus(f.Severity),
+			Code:    f.Code,
+			Message: f.Message,
+			Subject: subject,
+		}
+		if f.Hint != "" {
+			state.Meta = map[string]any{"hint": f.Hint}
+		}
+		out = append(out, state)
+	}
+	return out
+}
+
+func severityToStatus(s Severity) sdk.Status {
+	switch s {
+	case SeverityCrit:
+		return sdk.StatusCrit
+	case SeverityWarn:
+		return sdk.StatusWarn
+	case SeverityInfo:
+		return sdk.StatusInfo
+	}
+	return sdk.StatusOK
+}