package configkit

import "testing"

func TestFacadeResolutionRecordingIntents(t *testing.T) {
	type configuration struct {
		Derived    string `yaml:"derived"`
		Normalized string `yaml:"normalized"`
	}

	result, err := Load(Bytes("recording.yml", []byte("derived: explicit\nnormalized: before\n")), Options[configuration]{
		Definition: Definition[configuration]{Resolve: func(value *configuration, resolution *Resolution) error {
			value.Derived = "changed explicit input"
			resolution.RecordDerivedDefault(Keys("derived"), "derive explicit input")
			value.Normalized = "after"
			resolution.RecordNormalization(Keys("normalized"), "normalize configured input")
			return nil
		}},
	})
	if err != nil {
		t.Fatal(err)
	}

	for _, test := range []struct {
		path Path
		kind ChangeKind
	}{
		{path: Keys("derived"), kind: ChangeDerivedDefault},
		{path: Keys("normalized"), kind: ChangeNormalization},
	} {
		info, ok := result.Metadata().Lookup(test.path)
		if !ok || info.Origin.Operation != test.kind {
			t.Errorf("metadata %s = %#v, %v; want operation %q", test.path, info, ok, test.kind)
		}
		history := result.Metadata().History(test.path)
		if len(history) == 0 || history[len(history)-1].Origin.Operation != test.kind {
			t.Errorf("history %s = %#v; want final operation %q", test.path, history, test.kind)
		}
	}
	if !result.Metadata().IsExplicit(Keys("derived")) {
		t.Fatal("recording a derived default suppressed explicit-input provenance")
	}
}