package meshconfigclient

import (
	"strings"
	"testing"
)

// The keys are the earlier form of go/delivery's HeldValueKey and ConfigCandidateKey (golden), which the holder writes.
func TestKeysAreTheEarlierForm(t *testing.T) {
	if k, err := HeldValueKey("novox/mesh-catalog#42", "novox", "mail", "quota"); k != "novox.mesh-catalog.42.novox.mail.quota" || err != nil {
		t.Errorf("a held value's key is %q, %v", k, err)
	}
	for pull, want := range map[string]string{"novox/mesh-catalog#42": "novox.mesh-catalog.42", "x#1": "", "a/b": "", "a/b.c#1": ""} {
		if got, err := PullKey(pull); got != want || (want == "") != (err != nil) {
			t.Errorf("%s keyed %q, %v", pull, got, err)
		}
	}
	if _, err := HeldValueKey("novox/mesh-catalog#42", "", "mail", "quota"); err == nil {
		t.Error("a held value without a node was keyed")
	}
}

const held = `{"pull":"novox/mesh-catalog#434","head":"abc1234def","declaration":"sha256:3a7b","node":"ace","module":"n8n","key":"media-gid","value":2000,"by":"the operator","approved":"operator@telegram","at":"2026-11-05T12:30:00Z"}`

func TestAHeldValueIsTheOneItsKeyNames(t *testing.T) {
	key := "novox.mesh-catalog.434.ace.n8n.media-gid"
	v, err := DecodeKept(key, []byte(held))
	if err != nil || v.Node != "ace" || v.Value != float64(2000) {
		t.Fatalf("read %+v, %v", v, err)
	}
	if raw, err := ValueOf(v); err != nil || string(raw) != "2000" {
		t.Errorf("the value is %s, %v", raw, err)
	}
	for name, c := range map[string]struct{ key, raw string }{
		"another pull request's key": {"novox.mesh-catalog.435.ace.n8n.media-gid", held},
		"another module's key":       {"novox.mesh-catalog.434.ace.plex.media-gid", held},
		"no head":                    {key, strings.Replace(held, `"head":"abc1234def",`, "", 1)},
		"a field it does not know":   {key, strings.Replace(held, `"by"`, `"extra":1,"by"`, 1)},
		"a pull that is not one":     {key, strings.Replace(held, "novox/mesh-catalog#434", "novox", 1)},
	} {
		if _, err := DecodeKept(c.key, []byte(c.raw)); err == nil {
			t.Errorf("%s was read", name)
		}
	}
}