package resolution

import (
	"testing"

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

// mailSenderManifest is the fixture every mail-sender issue builds on: the real parts of mesh-mail's manifest
// taken from mesh-catalog/modules/mesh-mail/module.json, extended as ADR 0436 §7-§8 describe, with `own` naming
// the account that owns the family's files.
func mailSenderManifest(t *testing.T, own string) mcat.Manifest {
	t.Helper()
	ownSecrets := `"mail-credential-*":{"path":"/var/lib/mesh-mail/mail-credential-*.secret","issued-by":"outside"`
	if own != "" {
		ownSecrets += `,"owner":"` + own + `"`
	}
	ownSecrets += `}`
	m, err := decodeForTest([]byte(`{"module":"mesh-mail","version":"1","secrets-owner":"mesh-mail","own-secrets":{` +
		ownSecrets + `},"resources":[{"id":"account","type":"user","name":"mesh-mail-send"}]}`))
	if err != nil {
		t.Fatalf("a manifest with own=%q was refused: %v", own, err)
	}
	return m
}

// 1170/AC1: a family owned by the module's own account lands at 0600, owned by that account — and a module's
// other own secrets (no per-secret owner declared) keep secrets-owner, unchanged.
func TestAnOwnSecretsOwnerIsGivenToItsFiles(t *testing.T) {
	m := mailSenderManifest(t, "mesh-mail-send")
	m.OwnSecrets["smtp-relay-key"] = mcat.OwnSecret{Path: "/var/lib/mesh-mail/smtp-relay-key", Taken: mcat.TakenAtStart}
	r := mcat.Resolution{Node: "novox", Modules: []mcat.Manifest{m}}
	out, err := Declaration(r, mcat.Rendering{
		Needed: map[string]map[string]string{"mesh-mail": {"mail-credential-smtp": "sealed-credential", "smtp-relay-key": "sealed-relay"}},
	})
	if err != nil {
		t.Fatalf("composing the declaration: %v", err)
	}
	var family, plain map[string]any
	for _, res := range out {
		if res["type"] != "file" {
			continue
		}
		switch res["path"] {
		case "/var/lib/mesh-mail/mail-credential-smtp.secret":
			family = res
		case "/var/lib/mesh-mail/smtp-relay-key":
			plain = res
		}
	}
	if family == nil {
		t.Fatalf("the family member was not composed at all: %v", out)
	}
	if got := family["owner"]; got != "mesh-mail-send" {
		t.Fatalf("the family member's owner: %v; want mesh-mail-send", got)
	}
	// review round 1, finding 7: asserted, not merely logged. ownedBy never sets "mode", so a sealed secret
	// file carries none here either — the host applies 0600 to every one regardless (novox/hq ADR 0086) —
	// and the owner clause must not have added one of its own that could override that.
	if _, has := family["mode"]; has {
		t.Fatalf("the family member carries its own mode %v; the owner clause must not set one, so the "+
			"host's 0600 for every sealed secret file stands", family["mode"])
	}
	if plain == nil {
		t.Fatalf("the module's other own secret was not composed at all: %v", out)
	}
	if got := plain["owner"]; got != "mesh-mail" {
		t.Fatalf("a secret with no per-secret owner kept %v; want the module's secrets-owner %q", got, "mesh-mail")
	}
}

// 1170/AC3: a manifest with no owner on any own secret composes exactly as it did before this clause existed:
// every secret file belongs to the module's secrets-owner (or nothing, when that is absent too).
func TestNoOwnerOnAnySecretComposesAsMainDoes(t *testing.T) {
	m := mailSenderManifest(t, "")
	r := mcat.Resolution{Node: "novox", Modules: []mcat.Manifest{m}}
	out, err := Declaration(r, mcat.Rendering{
		Needed: map[string]map[string]string{"mesh-mail": {"mail-credential-smtp": "sealed-credential"}},
	})
	if err != nil {
		t.Fatalf("composing the declaration: %v", err)
	}
	var found bool
	for _, res := range out {
		if res["type"] == "file" && res["path"] == "/var/lib/mesh-mail/mail-credential-smtp.secret" {
			found = true
			if got := res["owner"]; got != "mesh-mail" {
				t.Fatalf("with no per-secret owner declared, the file's owner: %v; want secrets-owner %q", got, "mesh-mail")
			}
		}
	}
	if !found {
		t.Fatalf("the family member was not composed at all: %v", out)
	}
}