app/src/main/java/soy/iko/opencode/data/repo/DraftStore.kt · opencode-android

git.iko.soy/opencode-android

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1package soy.iko.opencode.data.repo

3import android.content.Context

4import kotlinx.coroutines.CoroutineScope

5import kotlinx.coroutines.launch

7/**

8 * Persists the in-progress message draft for each session so it survives

9 * back-navigation and process death. Backed by SharedPreferences because the

10 * UI needs the initial value synchronously and drafts are low-stakes data.

12 * The prefs file is loaded on a background thread at construction time so the

13 * first [get] call on the main thread doesn't trigger a synchronous disk read.

14 */

15class DraftStore(context: Context, scope: CoroutineScope) {

17 private val appContext = context.applicationContext

18 private val prefs by lazy {

19 appContext.getSharedPreferences("drafts", Context.MODE_PRIVATE)

20 }

22 init {

23 // Eagerly load the prefs file on a background thread so the first main-thread

24 // get() doesn't block on disk I/O. The lazy delegate ensures the same instance.

25 scope.launch { prefs.all }

26 }

28 fun get(sessionId: String): String = prefs.getString(sessionId, "").orEmpty()

30 fun set(sessionId: String, text: String) {

31 prefs.edit().apply {

32 if (text.isBlank()) remove(sessionId) else putString(sessionId, text)

33 }.apply()

34 }

36 /** Remove the draft for a session (call on session deletion to avoid orphaned entries). */

37 fun remove(sessionId: String) {

38 prefs.edit().remove(sessionId).apply()

39 }