package main

import (
	"testing"
	"time"

	"git.novox.be/novox/mesh-sdk/go/catalogue"
	"github.com/novox/mesh-controller/internal/conditions"
	"github.com/novox/mesh-controller/internal/inventory"
)

// Between `assign` and `push` a module's own secrets are not made yet: the push makes them. D1 composed
// the machine's declaration without making anything, failed on the missing secret, and raised an urgent
// "nothing can be sent to <machine>" — seen live on 2026-10-06, a desktop notification for a machine
// the next push sent to without a word (novox/hq issue 275). D1 now composes as the push would, with a
// stand-in for what the push makes: pending, not broken, and said only past a bound, as a warning.

// aKeeper is a module with an own secret the mesh makes — a backup repository's password.
func aKeeper() catalogue.Manifest {
	return catalogue.Manifest{Module: "keeper", Version: "1",
		OwnSecrets: catalogue.OwnSecrets{"repository": {Path: "/var/lib/mesh/keeper/repository"}},
		Resources: []map[string]any{
			{"id": "state", "type": "directory", "path": "/var/lib/mesh/keeper", "mode": "0700"},
		}}
}

// pushedBy records a send to a machine as a push does — composed on the send path, so its own secrets
// are made — without a bus to carry it.
func pushedBy(t *testing.T, open *stores, node string) string {
	t.Helper()
	ctx := t.Context()
	plan, settings, err := resolveNode(ctx, open, node)
	if err != nil {
		t.Fatal(err)
	}
	declared, err := declarationFor(ctx, open, node, plan, settings)
	if err != nil {
		t.Fatal(err)
	}
	body, err := declared.Body()
	if err != nil {
		t.Fatal(err)
	}
	record, err := open.inventory.NodeByName(ctx, node)
	if err != nil {
		t.Fatal(err)
	}
	digest := digestOf(body)
	// A push records the build of each module it carries (plan.go, Allocating); a module is carried by a send only when it was
	// built from a commit, for what a machine was sent is read from the commits its assignments name (issue 1109).
	builds := declared.Builds
	if builds == nil {
		current, err := open.inventory.CurrentBuilds(ctx)
		if err != nil {
			t.Fatal(err)
		}
		builds = map[string]string{}
		for _, m := range plan.Modules {
			builds[m.Module] = current[m.Module].Commit
		}
	}
	if err := open.inventory.RecordSent(ctx, record.ID, digest, builds); err != nil {
		t.Fatal(err)
	}
	return digest
}

// pushedAndApplied is pushedBy, and the machine reporting it applied that declaration.
func pushedAndApplied(t *testing.T, open *stores, node string) {
	t.Helper()
	digest := pushedBy(t, open, node)
	record, err := open.inventory.NodeByName(t.Context(), node)
	if err != nil {
		t.Fatal(err)
	}
	if _, err := open.inventory.RecordDoing(t.Context(), record.ID, inventory.Doing{
		Outcome: inventory.OutcomeApplied, Declared: digest}); err != nil {
		t.Fatal(err)
	}
}

// d1 runs D1 once.
func d1(t *testing.T, open *stores) []conditions.Observation {
	t.Helper()
	got, err := probeDeclarations(t.Context(), &doctor{open: open})
	if err != nil {
		t.Fatal(err)
	}
	return got
}

// **THE WINDOW, REPRODUCED**: assigned and not pushed, a module whose own secret the push makes is
// waiting, not uncomposable; past the bound it is a warning naming what the push makes; pushed, nothing.

// **A REAL FAILURE IS STILL URGENT**: a secret the push would be refused on is not one it will make.
// A bus credential nobody issued (issue 203) fails the push, so D1 says it — urgent, in the push's words.

// A given secret sealed to a key the machine no longer has is not the mesh's to make again: the push is
// refused on it, so D1 is too.

// The bound is read from when the machine began waiting: the oldest assignment since its last send.

// **D3 AND D13 WAIT FOR THE SEND**: a holder is expected to answer on a machine once the machine was sent
// it and had time to report — never between assign and push.
func TestAHolderIsExpectedOnlyOnceSentAndReported(t *testing.T) {
	now := time.Now()
	sent := now.Add(-time.Minute)
	long := now.Add(-time.Hour)
	cases := []struct {
		name string
		send lastSend
		want bool
	}{
		{"never sent", lastSend{}, false},
		{"sent without it", lastSend{sent: &long, current: true, carried: map[string]string{"other": "c"}}, false},
		{"sent with it, not reported yet", lastSend{sent: &sent, carried: map[string]string{"keeper": "c"}}, false},
		{"sent with it and reported", lastSend{sent: &sent, current: true, carried: map[string]string{"keeper": "c"}}, true},
		{"sent with it long ago, never reported", lastSend{sent: &long, carried: map[string]string{"keeper": "c"}}, true},
		{"sent before builds were kept", lastSend{sent: &long, current: true}, true},
	}
	for _, c := range cases {
		if got := c.send.settled("keeper", now); got != c.want {
			t.Errorf("%s: settled %v, want %v", c.name, got, c.want)
		}
	}
}

// And through the stores: assigned, not in the last send; pushed and reported, carried and settled.