package credentialform

import (
	"os"
	"path/filepath"
	"strings"
	"testing"
)

func aCatalogue(t *testing.T, manifests map[string]string) string {
	t.Helper()
	root := t.TempDir()
	for module, body := range manifests {
		dir := filepath.Join(root, "modules", module)
		if err := os.MkdirAll(dir, 0o755); err != nil {
			t.Fatal(err)
		}
		if err := os.WriteFile(filepath.Join(dir, "module.json"), []byte(body), 0o644); err != nil {
			t.Fatal(err)
		}
	}
	return root
}

// An offer that says no form is refused and named; one that says pair, none or an own secret passes; and the real
// catalogue is clean.
func TestEveryOfferSaysTheFormOfItsCredential(t *testing.T) {
	root := aCatalogue(t, map[string]string{
		"silent":           `{"module":"silent","provides":[{"name":"thing","scope":"mesh"}]}`,
		"binder":           `{"module":"binder","provides":[{"name":"d","credential":{"form":"pair"}}],"state":["bound"]}`,
		"mesh-provisioner": `{"module":"mesh-provisioner","reads":["other.bound"]}`,
		"says":             `{"module":"says","provides":[{"name":"a","credential":{"form":"pair"}},{"name":"b","credential":{"form":"none"}},{"name":"c","credential":{"own":"jwt"}}]}`,
	})
	got, err := Problems(root)
	if err != nil {
		t.Fatal(err)
	}
	if len(got) != 2 || !strings.Contains(got[0], `silent provides "thing"`) ||
		!strings.Contains(got[1], "binder") || !strings.Contains(got[1], "mesh-provisioner") {
		t.Fatalf("refused %v, wanted the silent offer and the binder the provisioner does not read", got)
	}
	real, err := Problems(filepath.Join("..", ".."))
	if err != nil {
		t.Fatal(err)
	}
	if len(real) != 0 {
		t.Fatalf("the catalogue has offers with no credential form:\n%s", strings.Join(real, "\n"))
	}
}