/*
 * 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.libraries.dateformatter.impl

import com.squareup.anvil.annotations.ContributesBinding
import io.element.android.libraries.dateformatter.api.LastMessageTimestampFormatter
import io.element.android.libraries.di.AppScope
import javax.inject.Inject

@ContributesBinding(AppScope::class)
class DefaultLastMessageTimestampFormatter @Inject constructor(
    private val localDateTimeProvider: LocalDateTimeProvider,
    private val dateFormatters: DateFormatters,
) : LastMessageTimestampFormatter {
    override fun format(timestamp: Long?): String {
        if (timestamp == null) return ""
        val currentDate = localDateTimeProvider.providesNow()
        val dateToFormat = localDateTimeProvider.providesFromTimestamp(timestamp)
        val isSameDay = currentDate.date == dateToFormat.date
        return when {
            isSameDay -> {
                dateFormatters.formatTime(dateToFormat)
            }
            else -> {
                dateFormatters.formatDate(
                    dateToFormat = dateToFormat,
                    currentDate = currentDate,
                    useRelative = true
                )
            }
        }
    }
}
