package resolution

import (
	"strings"
	"testing"

	mcat "git.novox.be/novox/mesh-sdk/go/catalogue"
)

const handedProvider = `{"module":"db","version":"1","moved":true,
  "provides":[{"name":"postgres-database","scope":"mesh","identity":{"max":63,"in":"a PostgreSQL role"}}],
  "build":{"artifacts":[{"name":"files","kind":"archive","from":"files"}]},
  "resources":[
    {"id":"state","type":"directory","mode":"0700","place":"."},
    {"id":"consumers","type":"file","path":"${dir:state}/consumers.json","mode":"0600","template":"files/consumers.json"}]}`

const consumersText = "${consumers:postgres-database}"

func builtProvider(text string) []mcat.Built {
	return []mcat.Built{{Name: "files", Kind: mcat.ArtifactArchive,
		Reference: mcat.ArtifactStoreScheme + "db/files/blobs/sha256:" + strings.Repeat("f", 64),
		Digest:    "sha256:" + strings.Repeat("f", 64), Texts: map[string]string{"consumers.json": text}}}
}

func TestWhatAConsumersPlaceholderMayNotBeIsRefused(t *testing.T) {
	for why, c := range map[string]struct{ raw, text, want string }{
		"a provision the module does not provide": {handedProvider, "${consumers:cache}", "does not provide"},
		"a module providing nothing": {strings.Replace(handedProvider, `"provides":[{"name":"postgres-database","scope":"mesh","identity":{"max":63,"in":"a PostgreSQL role"}}],`,
			"", 1), consumersText, "does not provide"},
		"a file others may read": {strings.Replace(handedProvider, `"mode":"0600","template"`,
			`"mode":"0640","template"`, 1), consumersText, "0600"},
		"a file the program keeps": {strings.Replace(handedProvider, `"mode":"0600","template"`,
			`"mode":"0600","create-once":true,"template"`, 1), consumersText, "owned"},
	} {
		m, err := decodeForTest([]byte(c.raw))
		if err != nil {
			t.Fatalf("%s: %v", why, err)
		}
		resolved, err := m.Resolve(builtProvider(c.text))
		if err == nil {
			r := notifierOn(t, resolved)
			_, err = Compose(r, handingTo("store:5000"))
		}
		if err == nil || !strings.Contains(err.Error(), c.want) {
			t.Errorf("%s: %v, want a refusal saying %q", why, err, c.want)
		}
	}
}