package resolution

import (
	"strings"
	"testing"

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

func outsideManifest(t *testing.T) mcat.Manifest {
	t.Helper()
	m, err := decodeForTest([]byte(`{"module":"assistant","version":"1",
	  "own-secrets":{
	    "password":{"path":"/var/lib/assistant/password.secret","taken":"at-start"},
	    "vendor-key":{"path":"/var/lib/assistant/vendor-key.secret","taken":"at-start","issued-by":"outside"}},
	  "resources":[
	    {"id":"env","type":"file","path":"/var/lib/assistant/env","mode":"0600",
	     "content":"PASSWORD=${secret:password}\nVENDOR_KEY=${secret:vendor-key}\n"},
	    {"id":"server","type":"container","name":"assistant","image":"assistant:1",
	     "env-file":["/var/lib/assistant/env"],
	     "volumes":["/var/lib/assistant/vendor-key.secret:/run/vendor-key:ro"],
	     "secrets-in-environment":"reads its settings from the environment only"}]}`))
	if err != nil {
		t.Fatal(err)
	}
	return m
}

func resourceAt(out []map[string]any, path string) map[string]any {
	for _, r := range out {
		if r["path"] == path {
			return r
		}
	}
	return nil
}

func resourceNamed(out []map[string]any, name string) map[string]any {
	for _, r := range out {
		if r["name"] == name {
			return r
		}
	}
	return nil
}

func TestAnOutsideSecretNotGivenIsNoFileAndAFileNamingItSaysEmpty(t *testing.T) {
	r := mcat.Resolution{Node: "server", Modules: []mcat.Manifest{outsideManifest(t)}}
	out, err := Declaration(r, mcat.Rendering{Needed: map[string]map[string]string{"assistant": {"password": "sealed-password"}}})
	if err != nil {
		t.Fatalf("a module whose outside secret nobody gave did not compose: %v", err)
	}
	if got := resourceAt(out, "/var/lib/assistant/vendor-key.secret"); got != nil {
		t.Fatalf("a secret nobody gave was placed: %v", got)
	}
	env := resourceAt(out, "/var/lib/assistant/env")
	if env == nil {
		t.Fatal("the module's own file is not composed")
	}
	if content := env["content"].(string); content != "PASSWORD=${secret:password}\nVENDOR_KEY=\n" {
		t.Fatalf("the file names the secret nobody gave as %q", content)
	}
	secrets, _ := env["secrets"].(map[string]any)
	if len(secrets) != 1 || secrets["password"] != "sealed-password" {
		t.Fatalf("the file is filled from %v", secrets)
	}
	server := resourceNamed(out, "assistant")
	if on := strings.Join(stringsIn(server["restart-on"]), " "); strings.Contains(on, "vendor-key") {
		t.Fatalf("the container restarts on a secret nobody gave: %q", on)
	}
}

func TestAnOutsideSecretGivenIsPlacedAndFilled(t *testing.T) {
	r := mcat.Resolution{Node: "server", Modules: []mcat.Manifest{outsideManifest(t)}}
	out, err := Declaration(r, mcat.Rendering{Needed: map[string]map[string]string{"assistant": {
		"password": "sealed-password", "vendor-key": "sealed-vendor-key"}}})
	if err != nil {
		t.Fatal(err)
	}
	placed := resourceAt(out, "/var/lib/assistant/vendor-key.secret")
	if placed == nil || placed["sealed"] != "sealed-vendor-key" {
		t.Fatalf("the secret given is placed as %v", placed)
	}
	env := resourceAt(out, "/var/lib/assistant/env")
	if content := env["content"].(string); content != "PASSWORD=${secret:password}\nVENDOR_KEY=${secret:vendor-key}\n" {
		t.Fatalf("the file was changed: %q", content)
	}
	if secrets, _ := env["secrets"].(map[string]any); secrets["vendor-key"] != "sealed-vendor-key" {
		t.Fatalf("the file is filled from %v", secrets)
	}
	server := resourceNamed(out, "assistant")
	if on := strings.Join(stringsIn(server["restart-on"]), " "); !strings.Contains(on, "assistant."+mcat.NeedID("vendor-key")) {
		t.Fatalf("the container does not restart on the secret given: %q", on)
	}
}

// A secret the mesh makes is still refused when it was not made: only an outside one is left out.
func TestAnOwnSecretTheMeshMakesIsStillRefusedWhenNotMade(t *testing.T) {
	r := mcat.Resolution{Node: "server", Modules: []mcat.Manifest{outsideManifest(t)}}
	_, err := Declaration(r, mcat.Rendering{})
	if nm, ok := err.(*NotMadeError); !ok || nm.Name != "password" {
		t.Fatalf("a secret the mesh makes, not made: %v", err)
	}
}