//go:build integration

package main

import (
	"reflect"
	"strings"
	"testing"

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

// 1382: the adapter's Input names, for every node, what the inventory answers for it, each compared with the read named
// beside the field in go/compose/input.go (novox/hq ADR 0453 clause 3).
func TestTheAdaptersInputNamesWhatTheInventoryAnswersForEachNode(t *testing.T) {
	open, _ := aMeshWithSecrets(t)
	ctx := t.Context()
	inv := open.inventory
	if err := inv.SetPublicDomain(ctx, "anchor", "example.test"); err != nil {
		t.Fatal(err)
	}
	if _, err := inv.PortFor(ctx, "laptop", "files", 8080, false); err != nil {
		t.Fatal(err)
	}
	in, err := readComposeInput(ctx, open)
	if err != nil {
		t.Fatal(err)
	}

	shelf, err := inv.Catalogue(ctx)
	if err != nil {
		t.Fatal(err)
	}
	if !reflect.DeepEqual(in.Catalogue, shelf) {
		t.Error("the Input's Catalogue is not the shelf the inventory holds")
	}
	nodes, err := inv.Nodes(ctx)
	if err != nil {
		t.Fatal(err)
	}
	if len(in.Nodes) != len(nodes) {
		t.Fatalf("the Input names %d node(s), the inventory has %d", len(in.Nodes), len(nodes))
	}
	places, err := inv.Overlays(ctx)
	if err != nil {
		t.Fatal(err)
	}
	for _, record := range nodes {
		n, ok := nodeOf(in.Input, record.Name)
		if !ok {
			t.Fatalf("%s is not in the Input", record.Name)
		}
		for _, p := range places {
			if p.Name == record.Name {
				if want := (compose.Place{Key: p.Key, Endpoint: p.Endpoint, Site: p.Site, Hub: p.Hub, Address: p.Address}); n.Place != want {
					t.Errorf("%s: Place is %+v, the inventory's %+v", record.Name, n.Place, want)
				}
			}
		}
		assigned, _ := inv.Assigned(ctx, record.Name)
		if !reflect.DeepEqual(n.Assigned, assigned) {
			t.Errorf("%s: Assigned is %v, the inventory's %v", record.Name, n.Assigned, assigned)
		}
		caps, _ := inv.ProfileOf(ctx, record.Name)
		if !reflect.DeepEqual(n.Capabilities, caps) {
			t.Errorf("%s: Capabilities are %v, the inventory's %v", record.Name, n.Capabilities, caps)
		}
		domain, _ := inv.PublicDomainOf(ctx, record.Name)
		if n.PublicDomain != domain {
			t.Errorf("%s: PublicDomain is %q, the inventory's %q", record.Name, n.PublicDomain, domain)
		}
		if n.Account != record.Account || n.AccountHome != record.AccountHome || n.AgentAccount != record.AgentAccount ||
			n.AgentAccountHome != record.AgentAccountHome || n.Adopted != record.Adopted {
			t.Errorf("%s: the accounts or the mode differ from the inventory's: %+v", record.Name, n)
		}
		pins, _ := inv.PinsFor(ctx, record.Name)
		if len(pins) != len(n.Pins) || (len(pins) > 0 && !reflect.DeepEqual(n.Pins, pins)) {
			t.Errorf("%s: Pins are %v, the inventory's %v", record.Name, n.Pins, pins)
		}
		bound, _ := inv.BindingsFor(ctx, record.Name)
		if len(bound) != len(n.Bound) || (len(bound) > 0 && !reflect.DeepEqual(n.Bound, bound)) {
			t.Errorf("%s: Bound is %v, the inventory's %v", record.Name, n.Bound, bound)
		}
		key, _ := inv.SealingKeyOf(ctx, record.Name)
		if n.SealingKey != key {
			t.Errorf("%s: SealingKey is %q, the inventory's %q", record.Name, n.SealingKey, key)
		}
		ports, _ := inv.PortsFor(ctx, record.Name)
		want := map[string]map[int]int{}
		for _, a := range ports {
			if want[a.Module] == nil {
				want[a.Module] = map[int]int{}
			}
			want[a.Module][a.Wanted] = a.Machine
		}
		if len(want) != len(n.Ports) || (len(want) > 0 && !reflect.DeepEqual(n.Ports, want)) {
			t.Errorf("%s: Ports are %v, the inventory's %v", record.Name, n.Ports, want)
		}
		// The settings of every module it resolves to, layer for layer.
		resolved, err := compose.Resolve(in.Input, record.Name)
		if err != nil {
			continue
		}
		for _, m := range resolved.Plan.Modules {
			layers, err := inv.SettingsFor(ctx, record.Name, m.Module)
			if err != nil {
				t.Fatal(err)
			}
			if len(layers) != len(n.Settings[m.Module]) || (len(layers) > 0 && !reflect.DeepEqual(n.Settings[m.Module], layers)) {
				t.Errorf("%s: the settings of %s are %v, the inventory's %v", record.Name, m.Module, n.Settings[m.Module], layers)
			}
		}
	}
	if domain := nodeDomain(in.Input, "anchor"); domain != "example.test" {
		t.Errorf("anchor's PublicDomain is %q", domain)
	}
	if got := nodePorts(in.Input, "laptop"); got["files"][8080] == 0 {
		t.Errorf("laptop's port for files:8080 is not in the Input: %v", got)
	}
}

func nodeDomain(in compose.Input, name string) string {
	n, _ := nodeOf(in, name)
	return n.PublicDomain
}

func nodePorts(in compose.Input, name string) map[string]map[int]int {
	n, _ := nodeOf(in, name)
	return n.Ports
}

// 1382/AC3: the seats on record, the tunnels, the adopted tunnel, its carried peers and the nodes joining equal the
// inventory's answers; the range and the suffix are read from the environment once, here.
func TestTheAdaptersInputCarriesTheNetworkAsTheInventoryHoldsIt(t *testing.T) {
	open, _ := aMeshWithSecrets(t)
	ctx := t.Context()
	inv := open.inventory
	t.Setenv(OverlayCIDRVar, "10.99.0.0/16")
	t.Setenv("MESH_INTERNAL_SUFFIX", "mesh.test")
	in, err := readComposeInput(ctx, open)
	if err != nil {
		t.Fatal(err)
	}
	holdings, err := inv.Holdings(ctx)
	if err != nil {
		t.Fatal(err)
	}
	if !reflect.DeepEqual(in.Holdings, holdings) {
		t.Errorf("Holdings are %v, the inventory's %v", in.Holdings, holdings)
	}
	tunnels, err := inv.Tunnels(ctx)
	if err != nil {
		t.Fatal(err)
	}
	if len(tunnels) != len(in.Tunnels) {
		t.Errorf("Tunnels are %v, the inventory's %v", in.Tunnels, tunnels)
	}
	if _, hub, _, err := inv.AdoptedTunnel(ctx); err != nil {
		t.Fatal(err)
	} else if (hub == "") != (in.Adopted == nil) {
		t.Errorf("Adopted is %v, the inventory's hub is %q", in.Adopted, hub)
	}
	carried, err := inv.CarriedPeers(ctx)
	if err != nil {
		t.Fatal(err)
	}
	if len(carried) != len(in.CarriedPeers) {
		t.Errorf("CarriedPeers are %v, the inventory's %v", in.CarriedPeers, carried)
	}
	joining, err := inv.NodesWithALiveToken(ctx)
	if err != nil {
		t.Fatal(err)
	}
	if len(joining) != len(in.Joining) {
		t.Errorf("Joining is %v, the inventory's %v", in.Joining, joining)
	}
	if in.OverlayCIDR != "10.99.0.0/16" || in.InternalSuffix != "mesh.test" {
		t.Errorf("the range and the suffix are %q and %q", in.OverlayCIDR, in.InternalSuffix)
	}
	// Read once: what the environment says afterwards moves nothing already read.
	t.Setenv(OverlayCIDRVar, "10.1.0.0/16")
	if in.OverlayCIDR != "10.99.0.0/16" {
		t.Error("the range moved with the environment")
	}
}

// The lead's equality finding (build 1792487777757012513): a provider on one machine serves a fact that says ${setting:domain},
// the setting is set for it, and a consumer on another machine takes that fact. The first pass of the adapter resolved every
// node with no settings in the Input, so the served fact could not be settled and the whole Input failed. The settings are in
// the Input before any node is resolved, and the Input builds, with the same plan for the consumer as the controller's own
// composition. It failed first, with the finding's words.
func TestAServedFactThatSaysASettingIsResolvedWithTheSettingInTheInput(t *testing.T) {
	open := aMesh(t)
	ctx := t.Context()
	register(t, open, catalogue.Manifest{Module: "step-ca", Version: "1",
		Provides: []catalogue.Offer{{Name: "acme-ca", Scope: catalogue.ScopeMesh}},
		Serves:   map[string]map[string]any{"acme-ca": {"domain": "${setting:domain}"}}})
	register(t, open, catalogue.Manifest{Module: "route-proxy", Version: "1", Requires: []string{"acme-ca"}})
	// The setting is there before the machines are assigned: an assignment resolves the mesh, and a served fact that says
	// ${setting:domain} resolves only with it.
	if err := open.inventory.KeepSettings(ctx, "", "step-ca", map[string]any{"domain": "example.test"}); err != nil {
		t.Fatal(err)
	}
	if _, err := assign(ctx, open, "anchor", "step-ca"); err != nil {
		t.Fatal(err)
	}
	if _, err := assign(ctx, open, "laptop", "route-proxy"); err != nil {
		t.Fatal(err)
	}
	in, err := readComposeInput(ctx, open)
	if err != nil {
		t.Fatalf("the Input cannot be built: %v", err)
	}
	if anchor, _ := nodeOf(in.Input, "anchor"); len(anchor.Settings["step-ca"]) == 0 {
		t.Fatalf("the Input does not carry the setting of the provider: %v", anchor.Settings)
	}
	oldPlan, _, err := resolveNode(ctx, open, "laptop")
	if err != nil {
		t.Fatal(err)
	}
	newPlan, _, err := resolveNode(withInputCache(ctx), open, "laptop")
	if err != nil {
		t.Fatalf("the consumer does not resolve: %v", err)
	}
	if !reflect.DeepEqual(oldPlan.Needs, newPlan.Needs) {
		t.Errorf("the consumer's needs are %+v, the controller's own %+v", newPlan.Needs, oldPlan.Needs)
	}
	t.Logf("a served fact that says a setting resolves with the setting in the Input: the Input builds and the consumer's needs equal planFor's")
}

// A setting that nothing sets, in a fact a provider serves, is not the adapter's to hide: the controller's own composition
// refuses it as well (theRestOfTheMesh returns servedOnNode's error), and the adapter refuses with the same words rather than
// building an Input that composes a placeholder.
func TestAServedFactThatSaysAnUnsetSettingIsRefusedAsTheControllerRefusesIt(t *testing.T) {
	open := aMesh(t)
	ctx := t.Context()
	register(t, open, catalogue.Manifest{Module: "step-ca", Version: "1",
		Provides: []catalogue.Offer{{Name: "acme-ca", Scope: catalogue.ScopeMesh}},
		Serves:   map[string]map[string]any{"acme-ca": {"domain": "${setting:domain}"}}})
	register(t, open, catalogue.Manifest{Module: "route-proxy", Version: "1", Requires: []string{"acme-ca"}})
	// Assigned with the setting there, then the setting is cleared: the mesh the controller holds when someone clears it.
	if err := open.inventory.KeepSettings(ctx, "", "step-ca", map[string]any{"domain": "example.test"}); err != nil {
		t.Fatal(err)
	}
	if _, err := assign(ctx, open, "anchor", "step-ca"); err != nil {
		t.Fatal(err)
	}
	if _, err := assign(ctx, open, "laptop", "route-proxy"); err != nil {
		t.Fatal(err)
	}
	if err := open.inventory.ClearSettings(ctx, "", "step-ca"); err != nil {
		t.Fatal(err)
	}
	_, _, oldErr := resolveNode(ctx, open, "laptop")
	_, newErr := readComposeInput(ctx, open)
	if (oldErr == nil) != (newErr == nil) {
		t.Fatalf("the controller's composition says %v, the adapter says %v", oldErr, newErr)
	}
	if oldErr != nil && !strings.Contains(newErr.Error(), "nothing sets \"domain\"") {
		t.Errorf("the adapter's words are %q, the controller's %q", newErr, oldErr)
	}
	t.Logf("an unset setting in a served fact is refused alike: the controller says %v, the adapter says %v", oldErr != nil, newErr != nil)
}