# PregnancyPreferencesDataSource.kt

    /*
     * The MIT License
     *
     * Original work sponsored and donated by The Danish Health Data Authority (http://www.sundhedsdatastyrelsen.dk)
     *
     * Copyright (C) 2023 The Danish Health Data Authority (http://www.sundhedsdatastyrelsen.dk)
     *
     *
     * Permission is hereby granted, free of charge, to any person obtaining a copy of
     * this software and associated documentation files (the "Software"), to deal in
     * the Software without restriction, including without limitation the rights to
     * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
     * of the Software, and to permit persons to whom the Software is furnished to do
     * so, subject to the following conditions:
     *
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     * The above copyright notice and this permission notice shall be included in all
     * copies or substantial portions of the Software.
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     * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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    package dk.nsp.mingraviditet.core.datastore

    import androidx.datastore.core.DataStore
    import dk.nsp.mingraviditet.core.datastore.extensions.toLocalDate
    import dk.nsp.mingraviditet.core.datastore.extensions.toTimestamp
    import dk.nsp.mingraviditet.core.model.data.PregnancyInfo
    import dk.nsp.mingraviditet.datastore.Pregnancy
    import dk.nsp.mingraviditet.datastore.copy
    import dk.nsp.mingraviditet.datastore.dateOfBirthOrNull
    import dk.nsp.mingraviditet.datastore.dateOfTerminationOrNull
    import dk.nsp.mingraviditet.datastore.expectedDueDateOrNull
    import dk.nsp.mingraviditet.datastore.lastMenstruationPeriodOrNull
    import kotlinx.coroutines.flow.map
    import java.time.LocalDate
    import javax.inject.Inject

    class PregnancyPreferencesDataSource @Inject constructor(
        private val pregnancyPreferences: DataStore<Pregnancy>,
    ) {

        val data = pregnancyPreferences.data
            .map {
                PregnancyInfo(
                    expectedDueDate = it.expectedDueDateOrNull?.toLocalDate(),
                    lastMenstruationPeriod = it.lastMenstruationPeriodOrNull?.toLocalDate(),
                    dateOfBirth = it.dateOfBirthOrNull?.toLocalDate(),
                    pregnancyTerminated = it.dateOfTerminationOrNull?.toLocalDate(),
                )
            }

        // <editor-fold desc="Date selections">
        suspend fun setExpectedDueDate(date: LocalDate?) {
            pregnancyPreferences.updateData {
                it.copy {
                    if (date == null) {
                        clearExpectedDueDate()
                    } else {
                        expectedDueDate = date.toTimestamp()
                    }
                }
            }
        }

        suspend fun setDateOfTermination(date: LocalDate?) {
            pregnancyPreferences.updateData {
                it.copy {
                    if (date == null) {
                        clearDateOfTermination()
                    } else {
                        dateOfTermination = date.toTimestamp()
                    }
                }
            }
        }

        suspend fun setLastMenstruationPeriod(date: LocalDate?) {
            pregnancyPreferences.updateData {
                it.copy {
                    if (date == null) {
                        clearLastMenstruationPeriod()
                    } else {
                        lastMenstruationPeriod = date.toTimestamp()
                    }
                }
            }
        }

        suspend fun setDateOfBirth(date: LocalDate?) {
            pregnancyPreferences.updateData {
                it.copy {
                    if (date == null) {
                        clearDateOfBirth()
                    } else {
                        dateOfBirth = date.toTimestamp()
                    }
                }
            }
        }

        suspend fun clearPregnancy() {
            pregnancyPreferences.updateData {
                it.toBuilder()
                    .clear()
                    .build()
            }
        }
    }