Add Fever initial and classic synchronisation logic

api/src/main/java/com/readrops/api/services/fever/FeverDataSource.kt

@@ -1,7 +1,9 @@
 package com.readrops.api.services.fever
 
+import com.readrops.api.services.SyncType
 import com.readrops.api.services.fever.adapters.FeverAPIAdapter
 import com.readrops.api.utils.ApiUtils
+import com.readrops.db.entities.Item
 import com.squareup.moshi.Moshi
 import okhttp3.MultipartBody
 
@@ -25,14 +27,56 @@ class FeverDataSource(private val service: FeverService) {
         adapter.fromJson(response.source())!!
     }
 
-    suspend fun sync(body: MultipartBody): FeverSyncResult {
+    suspend fun sync(syncType: SyncType, syncData: FeverSyncData, body: MultipartBody): FeverSyncResult {
+        if (syncType == SyncType.INITIAL_SYNC) {
+            val unreadIds = service.getUnreadItemsIds(body)
+                    .reversed()
+                    .subList(0, MAX_ITEMS_IDS)
+
+            var lastId = unreadIds.first()
+            val items = arrayListOf<Item>()
+            repeat(INITIAL_SYNC_ITEMS_REQUESTS_COUNT) {
+                val newItems = service.getItems(body, lastId, null)
+
+                lastId = newItems.last().remoteId!!
+                items += newItems
+            }
+
             return FeverSyncResult(
                     feverFeeds = service.getFeeds(body),
                     folders = service.getFolders(body),
-                items = service.getItems(body),
+                    items = items,
+                    unreadIds = unreadIds,
+                    starredIds = service.getStarredItemsIds(body),
+                    favicons = listOf(),
+                    sinceId = unreadIds.first().toLong(),
+            )
+        } else {
+            val items = arrayListOf<Item>()
+            var sinceId = syncData.sinceId
+
+            while (true) {
+                val newItems = service.getItems(body, null, sinceId)
+
+                if (newItems.isEmpty()) break
+                sinceId = newItems.first().remoteId!!
+                items += newItems
+            }
+
+            return FeverSyncResult(
+                    feverFeeds = service.getFeeds(body),
+                    folders = service.getFolders(body),
+                    items = items,
                     unreadIds = service.getUnreadItemsIds(body),
                     starredIds = service.getStarredItemsIds(body),
                     favicons = listOf(),
+                    sinceId = if (items.isNotEmpty()) items.first().remoteId!!.toLong() else sinceId.toLong(),
             )
         }
+    }
+
+    companion object {
+        private const val MAX_ITEMS_IDS = 5000
+        private const val INITIAL_SYNC_ITEMS_REQUESTS_COUNT = 10
+    }
 }

api/src/main/java/com/readrops/api/services/fever/FeverService.kt

@@ -2,14 +2,13 @@ package com.readrops.api.services.fever
 
 import com.readrops.api.services.fever.adapters.Favicon
 import com.readrops.api.services.fever.adapters.FeverFeeds
-import com.readrops.db.entities.Feed
 import com.readrops.db.entities.Folder
 import com.readrops.db.entities.Item
 import okhttp3.MultipartBody
 import okhttp3.ResponseBody
 import retrofit2.http.Body
-import retrofit2.http.GET
 import retrofit2.http.POST
+import retrofit2.http.Query
 
 interface FeverService {
 
@@ -26,7 +25,8 @@ interface FeverService {
     suspend fun getFavicons(@Body body: MultipartBody): List<Favicon>
 
     @POST("?items")
-    suspend fun getItems(@Body body: MultipartBody): List<Item>
+    suspend fun getItems(@Body body: MultipartBody, @Query("max_id") maxId: String?,
+                         @Query("since_id") sinceId: String?): List<Item>
 
     @POST("?unread_item_ids")
     suspend fun getUnreadItemsIds(@Body body: MultipartBody): List<String>

api/src/main/java/com/readrops/api/services/fever/FeverSyncData.kt

@@ -0,0 +1,5 @@
+package com.readrops.api.services.fever
+
+data class FeverSyncData(
+        val sinceId: String,
+)

api/src/main/java/com/readrops/api/services/fever/FeverSyncResult.kt

@@ -12,4 +12,5 @@ data class FeverSyncResult(
         val unreadIds: List<String>,
         val starredIds: List<String>,
         val favicons: List<Favicon>,
+        val sinceId: Long = 0,
 )

app/src/main/java/com/readrops/app/repositories/FeverRepository.kt

@@ -4,6 +4,7 @@ import android.content.Context
 import android.util.Log
 import com.readrops.api.services.SyncType
 import com.readrops.api.services.fever.FeverDataSource
+import com.readrops.api.services.fever.FeverSyncData
 import com.readrops.api.services.fever.adapters.FeverFeeds
 import com.readrops.api.utils.ApiUtils
 import com.readrops.app.addfeed.FeedInsertionResult
@@ -62,13 +63,17 @@ class FeverRepository(
                         .addFormDataPart("api_key", credentials)
                         .build()
 
-                val syncResult = feverDataSource.sync(requestBody)
+                val syncResult = feverDataSource.sync(syncType,
+                        FeverSyncData(account.lastModified.toString()), requestBody)
 
                 insertFolders(syncResult.folders)
                 insertFeeds(syncResult.feverFeeds)
 
                 insertItems(syncResult.items)
                 insertItemsIds(syncResult.unreadIds, syncResult.starredIds.toMutableList())
+
+                // We store the id to use for the next synchronisation even if it's not a timestamp
+                database.accountDao().updateLastModified(account.id, syncResult.sinceId)
             } catch (e: Exception) {
                 Log.e(TAG, "sync: ${e.message}")
                 error(e.message!!)