/*
 * Copyright (c) 2023 New Vector Ltd
 *
 * 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 io.element.android.features.messages.impl.timeline.factories.virtual

import io.element.android.features.messages.impl.timeline.model.TimelineItem
import io.element.android.features.messages.impl.timeline.model.virtual.TimelineItemEncryptedHistoryBannerVirtualModel
import io.element.android.features.messages.impl.timeline.model.virtual.TimelineItemLastForwardIndicatorModel
import io.element.android.features.messages.impl.timeline.model.virtual.TimelineItemLoadingIndicatorModel
import io.element.android.features.messages.impl.timeline.model.virtual.TimelineItemReadMarkerModel
import io.element.android.features.messages.impl.timeline.model.virtual.TimelineItemRoomBeginningModel
import io.element.android.features.messages.impl.timeline.model.virtual.TimelineItemVirtualModel
import io.element.android.libraries.matrix.api.timeline.MatrixTimelineItem
import io.element.android.libraries.matrix.api.timeline.item.virtual.VirtualTimelineItem
import javax.inject.Inject

class TimelineItemVirtualFactory @Inject constructor(
    private val daySeparatorFactory: TimelineItemDaySeparatorFactory,
) {
    fun create(
        virtualTimelineItem: MatrixTimelineItem.Virtual,
    ): TimelineItem.Virtual {
        return TimelineItem.Virtual(
            id = virtualTimelineItem.uniqueId,
            model = virtualTimelineItem.computeModel()
        )
    }

    private fun MatrixTimelineItem.Virtual.computeModel(): TimelineItemVirtualModel {
        return when (val inner = virtual) {
            is VirtualTimelineItem.DayDivider -> daySeparatorFactory.create(inner)
            is VirtualTimelineItem.ReadMarker -> TimelineItemReadMarkerModel
            is VirtualTimelineItem.EncryptedHistoryBanner -> TimelineItemEncryptedHistoryBannerVirtualModel
            is VirtualTimelineItem.RoomBeginning -> TimelineItemRoomBeginningModel
            is VirtualTimelineItem.LoadingIndicator -> TimelineItemLoadingIndicatorModel(
                direction = inner.direction,
                timestamp = inner.timestamp
            )
            is VirtualTimelineItem.LastForwardIndicator -> TimelineItemLastForwardIndicatorModel
        }
    }
}
