package host

import (
	"testing"
	"time"

	"github.com/carlosframework/platform/internal/hostclaim"
	"github.com/carlosframework/platform/internal/release"
)

// ClaimOriginProof is the moves provider's proof (movesOriginProof's batch
// contract), adopted with the Plan 15 switch.
var _ movesOriginProof = ClaimOriginProof{}

func TestPlan15MovesProof(t *testing.T) {
	t.Setenv("CARLOS_HOST_CLAIM", "1")
	t.Setenv("CARLOS_HOST_CLAIM_ORIGINS", "1")
	s := release.NewDirStore(t.TempDir())
	host := "test.example"
	o, err := hostclaim.Read(t.Context(), s, host)
	if err != nil {
		t.Fatal(err)
	}
	n := hostclaim.NewHolder{Family: "instance", Key: "apps/bab/app/instances/test.example.json", Account: "bab", App: "app", Host: host, Region: "ie", CreatedAt: time.Date(2026, 10, 12, 0, 0, 0, 0, time.UTC)}
	o, err = hostclaim.Update(t.Context(), s, o, hostclaim.BeginCreate(n, []byte(`{"host":"test.example","account":"bab","app":"app","created_at":"2026-10-12T00:00:00Z"}`), "create", "console", time.Now()))
	if err != nil {
		t.Fatal(err)
	}
	o, err = hostclaim.Update(t.Context(), s, o, hostclaim.CompleteCreate("create", "box"))
	if err != nil {
		t.Fatal(err)
	}
	o, err = hostclaim.Update(t.Context(), s, o, hostclaim.AdmitWriter(hostclaim.Admission{Box: "box", Mode: "cold", Region: "ie", NewGeneration: "admitted"}))
	if err != nil {
		t.Fatal(err)
	}
	for _, tc := range []struct {
		home, region, generation string
		want                     bool
	}{
		{"", "ie", "admitted", true}, {"ie", "@home", "admitted", true}, {"", "@home", "admitted", false},
		{"ie", "uk", "admitted", false}, {"", "ie", "prepared", false},
	} {
		p := ClaimOriginProof{Claims: s, HomeRegion: tc.home, Region: tc.region}
		got, err := p.Proven(t.Context(), o, hostclaim.Admission{NewGeneration: tc.generation}, []string{tc.generation})
		if got[tc.generation] != tc.want || err != nil {
			t.Fatalf("%+v: %v %v", tc, got, err)
		}
	}
}