// Copyright 2023 Northern.tech AS
//
//	Licensed under the Apache License, Version 2.0 (the "License");
//	you may not use this file except in compliance with the License.
//	You may obtain a copy of the License at
//
//	    http://www.apache.org/licenses/LICENSE-2.0
//
//	Unless required by applicable law or agreed to in writing, software
//	distributed under the License is distributed on an "AS IS" BASIS,
//	WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
//	See the License for the specific language governing permissions and
//	limitations under the License.
package mongo

import (
	"context"
	"time"

	"github.com/pkg/errors"
	"go.mongodb.org/mongo-driver/v2/bson"

	"github.com/mendersoftware/mender-server/pkg/mongo/v2/migrate"
	ctxstore "github.com/mendersoftware/mender-server/pkg/store"

	"github.com/mendersoftware/mender-server/services/deviceauth/model"
	"github.com/mendersoftware/mender-server/services/deviceauth/store"
	uto "github.com/mendersoftware/mender-server/services/deviceauth/utils/to"
)

type migration_1_4_0 struct {
	ms  *DataStoreMongo
	ctx context.Context
}

func (m *migration_1_4_0) Up(from migrate.Version) error {
	devColl := m.ms.client.Database(ctxstore.DbFromContext(m.ctx, DbName)).Collection(DbDevicesColl)

	cursor, err := devColl.Find(m.ctx, bson.M{})
	if err != nil {
		return err
	}

	var dev model.Device

	for cursor.Next(m.ctx) {
		if err = cursor.Decode(&dev); err != nil {
			continue
		}

		status, err := getDeviceStatusDB(
			m.ms,
			ctxstore.DbFromContext(m.ctx, DbName),
			"",
			m.ctx,
			dev.Id,
		)

		if err != nil {
			if err == store.ErrAuthSetNotFound {
				status = model.DevStatusRejected
			} else {
				return errors.Wrapf(err, "Cannot determine device status for device: %s", dev.Id)
			}
		}

		update := model.DeviceUpdate{
			Status:    status,
			UpdatedTs: uto.TimePtr(time.Now().UTC()),
		}

		_, err = devColl.UpdateOne(m.ctx, bson.M{"_id": dev.Id}, bson.M{"$set": update})
		if err != nil {
			return errors.Wrap(err, "failed to update device status")
		}

	}

	if err := cursor.Close(m.ctx); err != nil {
		return errors.Wrap(err, "failed to close DB iterator")
	}

	return nil
}

func (m *migration_1_4_0) Version() migrate.Version {
	return migrate.MakeVersion(1, 4, 0)
}
