//go:build integration

package main

import (
	"testing"
	"time"

	"github.com/novox/mesh-controller/internal/catalogue"
	"github.com/novox/mesh-controller/internal/inventory"
)

func TestAWalksClassAndWindowAreReadAtItsCut(t *testing.T) {
	entries := []inventory.Entry{
		{Manifest: catalogue.Manifest{Module: "dnsmasq", Claims: []catalogue.Claim{{Name: resolverSeat}}}},
		{Manifest: catalogue.Manifest{Module: "gitea"}},
	}
	walk := func(modules ...string) inventory.Plan {
		p := inventory.Plan{Modules: map[string]*inventory.PlanModule{}}
		for _, m := range modules {
			p.Modules[m] = &inventory.PlanModule{}
		}
		return p
	}
	for want, w := range map[string]inventory.Plan{
		inventory.ClassLeaf: walk("gitea"), inventory.ClassCore: walk("gitea", "mesh-controller"),
	} {
		if got := classOf(w, entries); got != want {
			t.Errorf("%v: %s, want %s", w.Modules, got, want)
		}
	}
	if got := classOf(walk("dnsmasq"), entries); got != inventory.ClassCore {
		t.Errorf("the resolver's holder is core: %s", got)
	}
	now := time.Date(2026, 10, 10, 18, 0, 0, 0, time.UTC)
	batch := inventory.Plan{Delivery: &inventory.PlanDelivery{Batch: &inventory.PlanBatch{
		ClosesAt: now.Add(-20 * time.Second), AtMost: now.Add(5 * time.Minute)}}}
	times := walkTimesAtCut(batch, walk("gitea"), entries, now)
	if times.Cut == nil || !times.Cut.Equal(now) || times.WindowClosed == nil || !times.WindowClosed.Equal(now.Add(-20*time.Second)) ||
		times.Class != inventory.ClassLeaf {
		t.Fatalf("times at the cut: %+v", times)
	}
	batch.Delivery.Batch.AtMost = now.Add(-time.Minute)
	if times := walkTimesAtCut(batch, walk("gitea"), entries, now); !times.WindowClosed.Equal(now.Add(-time.Minute)) {
		t.Fatalf("a window closed at its maximum: %v", times.WindowClosed)
	}
	if times := walkTimesAtCut(inventory.Plan{Delivery: &inventory.PlanDelivery{Alone: true}}, walk("gitea"), entries, now); times.WindowClosed != nil {
		t.Fatalf("a merge walked alone had no window: %v", times.WindowClosed)
	}
}