37 lines
2.1 KiB
Kotlin
37 lines
2.1 KiB
Kotlin
package com.labfytools.trainlog.data
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import android.app.Activity
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import android.content.Intent
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import android.os.Bundle
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import android.widget.Button
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import android.widget.LinearLayout
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import android.widget.TextView
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/** Minimal non-migrating bridge UI; it intentionally exposes backup/restore only. */
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class BackupBridgeActivity : Activity() {
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private lateinit var repository: TrainlogRepository
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private lateinit var status: TextView
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private val service by lazy { AndroidBackupService(applicationContext) }
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override fun onCreate(state: Bundle?) {
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super.onCreate(state); repository = TrainlogRepository(applicationContext)
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status = TextView(this).apply { text = "Plaintext local backup. Keep the exported file private." }
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val backup = Button(this).apply { text = "Create complete backup"; setOnClickListener {
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startActivityForResult(Intent(Intent.ACTION_CREATE_DOCUMENT).setType("application/zip")
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.putExtra(Intent.EXTRA_TITLE, "trainlog-backup.tlbackup").addCategory(Intent.CATEGORY_OPENABLE), 1) } }
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val restore = Button(this).apply { text = "Verify and restore backup"; setOnClickListener {
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startActivityForResult(Intent(Intent.ACTION_OPEN_DOCUMENT).setType("application/zip")
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.addCategory(Intent.CATEGORY_OPENABLE), 2) } }
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setContentView(LinearLayout(this).apply { orientation = LinearLayout.VERTICAL; addView(status); addView(backup); addView(restore) })
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}
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override fun onActivityResult(request: Int, result: Int, data: Intent?) {
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super.onActivityResult(request, result, data); if (result != RESULT_OK || data?.data == null) return
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if (request == 1) contentResolver.openOutputStream(data.data!!, "w")!!.use {
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status.text = service.create(repository, it).toString()
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} else if (request == 2) contentResolver.openInputStream(data.data!!)!!.use {
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val verified = service.verify(it).getOrElse { error -> status.text = error.message; return }
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status.text = service.restore(repository, verified).toString()
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recreate()
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}
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}
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override fun onDestroy() { repository.close(); super.onDestroy() }
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}
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