AppSettingsSerializer.kt

package com.rickyhu.hushkeyboard.data

import androidx.datastore.core.Serializer
import kotlinx.serialization.SerializationException
import kotlinx.serialization.json.Json
import java.io.InputStream
import java.io.OutputStream

object AppSettingsSerializer : Serializer<AppSettings> {
    override val defaultValue: AppSettings
        get() = AppSettings()

    override suspend fun readFrom(input: InputStream): AppSettings =
        try {
            Json.decodeFromString(
                deserializer = AppSettings.serializer(),
                string = input.readBytes().decodeToString(),
            )
        } catch (e: SerializationException) {
            e.printStackTrace()
            defaultValue
        }

    override suspend fun writeTo(
        t: AppSettings,
        output: OutputStream,
    ) {
        output.write(
            Json
                .encodeToString(
                    serializer = AppSettings.serializer(),
                    value = t,
                ).encodeToByteArray(),
        )
    }
}