Initial commit

checker/provider.go

@@ -0,0 +1,31 @@
+// SPDX-License-Identifier: MIT
+
+package checker
+
+import (
+	"context"
+
+	sdk "git.happydns.org/checker-sdk-go/checker"
+)
+
+// CollectFn is the function signature for the DNSViz data collection step.
+// The checker package is decoupled from the subprocess invocation so it can
+// be imported without GPL obligations. Implementations live in the binary or
+// plugin layer (see internal/collect).
+type CollectFn func(ctx context.Context, opts sdk.CheckerOptions) (any, error)
+
+// Provider returns a new DNSViz observation provider backed by the given
+// collect function.
+func Provider(collect CollectFn) sdk.ObservationProvider {
+	return &dnsvizProvider{collect: collect}
+}
+
+type dnsvizProvider struct{ collect CollectFn }
+
+func (p *dnsvizProvider) Key() sdk.ObservationKey {
+	return ObservationKeyDNSViz
+}
+
+func (p *dnsvizProvider) Collect(ctx context.Context, opts sdk.CheckerOptions) (any, error) {
+	return p.collect(ctx, opts)
+}