package builder

import (
	"context"
	"strings"
	"testing"
)

// A build's source fingerprint (novox/hq issue 280): what it was made from, so a rebuild of an unchanged
// source is one build however the image digest it made differs.

const anImage = `{"module":"bus","version":"1",
  "build":{"on":[{"arg":"BASE","image":"vendor/server@sha256:` + "1111111111111111111111111111111111111111111111111111111111111111" + `"}],
    "artifacts":[{"name":"server","kind":"image","from":"Dockerfile"}]},
  "resources":[{"id":"svc","type":"container","name":"bus","artifact":"server"}]}`

// mirroring is a store that copies a vendor's image into the mesh's registry, at an address a test says.
type mirroring struct {
	*recorded
	at string
}

func (m *mirroring) MirrorImage(_ context.Context, from, repository string) (string, error) {
	_, digest, _ := strings.Cut(from, "@")
	return m.at + "/" + repository + "@" + digest, nil
}

func TestABuildTheRegistryDecidesHasNoFingerprint(t *testing.T) {
	s := newSourceInputs("app")
	s.tree = "aaaa"
	if s.fingerprint() == "" {
		t.Fatal("a pinned source has no fingerprint")
	}
	s.notPinned("it resolves packages from the mesh's registry at build time")
	if got := s.fingerprint(); got != "" {
		t.Fatalf("a build the registry decides has a fingerprint: %s", got)
	}
	if (&sourceInputs{module: "app"}).fingerprint() != "" {
		t.Fatal("a build whose tree was not named has a fingerprint")
	}
}