package hostops

import (
	"context"
	"errors"
	"testing"

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

// TestClassifyPromotionRecordIsExact: a build's signed promotion record,
// releases/<acct>/<app>/promoted/<version> (settings plan 2, spec §4.1), is
// a reviewed family scoped to exactly its app, put and deleted; nothing
// else under releases/<acct>/<app>/ is.
func TestClassifyPromotionRecordIsExact(t *testing.T) {
	ctx := context.Background()
	key := release.PromotionRecordKey("bab", "km", "v1")
	for _, c := range []struct {
		name   string
		target MutationTarget
	}{
		{"record put", MutationTarget{Surface: "bucket", Method: "Put", Key: key, After: []byte(`{}`)}},
		{"record put over an existing one", MutationTarget{Surface: "bucket", Method: "Put", Key: key, ETag: "x", Before: []byte(`{}`), After: []byte(`{}`)}},
		{"record delete", MutationTarget{Surface: "bucket", Method: "Delete", Key: key}},
	} {
		got, err := ClassifyMutation(ctx, nil, nil, c.target)
		if err != nil {
			t.Errorf("%s: %v", c.name, err)
			continue
		}
		if got.Family != "promotion-record" || got.NonApp != "" || got.MailGate ||
			len(got.Scopes) != 1 || got.Scopes[0] != (AppScope{"bab", "km"}) {
			t.Errorf("%s: classified %+v, want family promotion-record scoped to exactly {bab km}", c.name, got)
		}
	}
	for _, c := range []struct {
		name   string
		target MutationTarget
	}{
		{"an invalid account", MutationTarget{Surface: "bucket", Method: "Put", Key: "releases/BAB!/km/promoted/v1", After: []byte(`{}`)}},
		{"an invalid app", MutationTarget{Surface: "bucket", Method: "Put", Key: "releases/bab/KM!/promoted/v1", After: []byte(`{}`)}},
		{"an empty version", MutationTarget{Surface: "bucket", Method: "Put", Key: "releases/bab/km/promoted/", After: []byte(`{}`)}},
		{"a sixth segment", MutationTarget{Surface: "bucket", Method: "Put", Key: key + "/x", After: []byte(`{}`)}},
		{"no version", MutationTarget{Surface: "bucket", Method: "Put", Key: "releases/bab/km/promoted", After: []byte(`{}`)}},
		{"another name under the app", MutationTarget{Surface: "bucket", Method: "Put", Key: "releases/bab/km/other/v1", After: []byte(`{}`)}},
		{"the dev version", MutationTarget{Surface: "bucket", Method: "Put", Key: "releases/bab/km/promoted/dev", After: []byte(`{}`)}},
		{"a delete-if-match", MutationTarget{Surface: "bucket", Method: "DeleteIfMatch", Key: key, ETag: "x"}},
	} {
		got, err := ClassifyMutation(ctx, nil, nil, c.target)
		if !errors.Is(err, ErrUnclassified) && !errors.Is(err, ErrIdentity) {
			t.Errorf("%s: classified %+v, err %v; want ErrUnclassified or ErrIdentity", c.name, got, err)
		}
	}
}