package no.naiv.meddetsamme.data

import androidx.room.Dao
import androidx.room.Insert
import androidx.room.Query
import androidx.room.Transaction

/**
 * Bulk read/replace for backup. Inserts preserve original ids (autoGenerate
 * only kicks in for id = 0), which keeps FK references in the file intact.
 */
@Dao
interface BackupDao {

    @Query("SELECT * FROM medication")
    suspend fun allMedications(): List<Medication>

    @Query("SELECT * FROM dose_time")
    suspend fun allDoseTimes(): List<DoseTime>

    @Query("SELECT * FROM dose_log")
    suspend fun allDoseLogs(): List<DoseLog>

    @Query("DELETE FROM medication")
    suspend fun clearMedications()

    @Insert
    suspend fun insertMedications(meds: List<Medication>)

    @Insert
    suspend fun insertDoseTimes(doseTimes: List<DoseTime>)

    @Insert
    suspend fun insertDoseLogs(logs: List<DoseLog>)

    /**
     * Replace-all restore. Deleting medication CASCADEs to dose_time and
     * dose_log, so one delete clears everything; insertion order respects FKs.
     */
    @Transaction
    suspend fun replaceAll(
        meds: List<Medication>,
        doseTimes: List<DoseTime>,
        logs: List<DoseLog>,
    ) {
        clearMedications()
        insertMedications(meds)
        insertDoseTimes(doseTimes)
        insertDoseLogs(logs)
    }
}