Ole-Morten Duesund
8f5b18cf68
Milestone 5. One BackupManager entry point so export, import and auto-backup share the same serializer and crypto by construction. Explicit DTOs decouple the backup contract from the Room schema. JCE baseline (PBKDF2-HMAC-SHA256 600k → AES-256-GCM) behind the BackupCrypto interface with format auto-detection on decrypt; age lands behind the same interface in milestone 6. SigV4 signer verified against AWS's published documentation example signature. Settings in SharedPreferences encrypted under a non-exportable AndroidKeyStore key — replaces the now fully deprecated androidx security-crypto with the same construction (~70 lines, zero deps); threat-model comments state plainly that the stored auto-backup passphrase only protects against bucket compromise. WorkManager daily periodic job, inexact by design. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
51 lines
1.3 KiB
Kotlin
51 lines
1.3 KiB
Kotlin
package no.naiv.meddetsamme.data
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import androidx.room.Dao
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import androidx.room.Insert
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import androidx.room.Query
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import androidx.room.Transaction
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/**
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* Bulk read/replace for backup. Inserts preserve original ids (autoGenerate
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* only kicks in for id = 0), which keeps FK references in the file intact.
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*/
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@Dao
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interface BackupDao {
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@Query("SELECT * FROM medication")
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suspend fun allMedications(): List<Medication>
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@Query("SELECT * FROM dose_time")
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suspend fun allDoseTimes(): List<DoseTime>
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@Query("SELECT * FROM dose_log")
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suspend fun allDoseLogs(): List<DoseLog>
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@Query("DELETE FROM medication")
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suspend fun clearMedications()
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@Insert
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suspend fun insertMedications(meds: List<Medication>)
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@Insert
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suspend fun insertDoseTimes(doseTimes: List<DoseTime>)
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@Insert
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suspend fun insertDoseLogs(logs: List<DoseLog>)
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/**
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* Replace-all restore. Deleting medication CASCADEs to dose_time and
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* dose_log, so one delete clears everything; insertion order respects FKs.
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*/
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@Transaction
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suspend fun replaceAll(
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meds: List<Medication>,
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doseTimes: List<DoseTime>,
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logs: List<DoseLog>,
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) {
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clearMedications()
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insertMedications(meds)
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insertDoseTimes(doseTimes)
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insertDoseLogs(logs)
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}
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}
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