Store api version and select correct date formatter when offline.

app/src/main/java/apps/amine/bou/readerforselfoss/HomeActivity.kt

@@ -108,7 +108,6 @@ class HomeActivity : AppCompatActivity(), SearchView.OnQueryTextListener {
     private var periodicRefresh = false
     private var refreshMinutes: Long = 360L
     private var refreshWhenChargingOnly = false
-    private val dateTimeFormatter = "yyyy-MM-dd HH:mm:ss"
 
     private lateinit var tabNewBadge: TextBadgeItem
     private lateinit var tabArchiveBadge: TextBadgeItem

app/src/main/java/apps/amine/bou/readerforselfoss/MyApp.kt

@@ -3,12 +3,15 @@ package apps.amine.bou.readerforselfoss
 import android.app.NotificationChannel
 import android.app.NotificationManager
 import android.content.Context
+import android.content.SharedPreferences
 import android.graphics.drawable.Drawable
 import android.net.Uri
 import android.os.Build
 import android.preference.PreferenceManager
 import android.widget.ImageView
 import androidx.multidex.MultiDexApplication
+import apps.amine.bou.readerforselfoss.api.selfoss.ApiVersion
+import apps.amine.bou.readerforselfoss.api.selfoss.SelfossApi
 import apps.amine.bou.readerforselfoss.utils.Config
 import apps.amine.bou.readerforselfoss.utils.glide.loadMaybeBasicAuth
 import com.bumptech.glide.Glide
@@ -16,10 +19,20 @@ import com.bumptech.glide.request.RequestOptions
 import com.ftinc.scoop.Scoop
 import com.mikepenz.materialdrawer.util.AbstractDrawerImageLoader
 import com.mikepenz.materialdrawer.util.DrawerImageLoader
+import retrofit2.Call
+import retrofit2.Callback
+import retrofit2.Response
 import java.util.UUID.randomUUID
 
+var dateTimeFormatter = "yyyy-MM-dd HH:mm:ss"
+
 class MyApp : MultiDexApplication() {
     private lateinit var config: Config
+    private lateinit var api: SelfossApi
+    private lateinit var settings: SharedPreferences
+    private lateinit var sharedPref: SharedPreferences
+
+    private var apiVersionMajor: Int = 0
 
     override fun onCreate() {
         super.onCreate()
@@ -39,6 +52,19 @@ class MyApp : MultiDexApplication() {
         tryToHandleBug()
 
         handleNotificationChannels()
+
+        sharedPref = PreferenceManager.getDefaultSharedPreferences(this)
+        apiVersionMajor = sharedPref.getInt("apiVersionMajor", 0)
+        settings = getSharedPreferences(Config.settingsName, Context.MODE_PRIVATE)
+
+        api = SelfossApi(
+                this,
+                null,
+                settings.getBoolean("isSelfSignedCert", false),
+                sharedPref.getString("api_timeout", "-1")!!.toLong()
+        )
+
+        getApiMajorVersion()
     }
 
     private fun handleNotificationChannels() {
@@ -103,4 +129,24 @@ class MyApp : MultiDexApplication() {
             }
         }
     }
+
+    private fun getApiMajorVersion() {
+        api.apiVersion.enqueue(object : Callback<ApiVersion> {
+            override fun onFailure(call: Call<ApiVersion>, t: Throwable) {
+                if (apiVersionMajor >= 4) {
+                    dateTimeFormatter = "yyyy-MM-dd'T'HH:mm:ssXXX"
+                }
+            }
+
+            override fun onResponse(call: Call<ApiVersion>, response: Response<ApiVersion>) {
+                val version = response.body() as ApiVersion
+                apiVersionMajor = version.getApiMajorVersion()
+                sharedPref.edit().putInt("apiVersionMajor", apiVersionMajor).commit()
+
+                if (apiVersionMajor >= 4) {
+                    dateTimeFormatter = "yyyy-MM-dd'T'HH:mm:ssXXX"
+                }
+            }
+        })
+    }
 }

app/src/main/java/apps/amine/bou/readerforselfoss/api/selfoss/SelfossApi.kt

@@ -215,6 +215,9 @@ class SelfossApi(
     fun update(): Call<String> =
         service.update(userName, password)
 
+    val apiVersion: Call<ApiVersion>
+        get() = service.version()
+
     val sources: Call<List<Source>>
         get() = service.sources(userName, password)
 

app/src/main/java/apps/amine/bou/readerforselfoss/api/selfoss/SelfossModels.kt

@@ -48,6 +48,19 @@ data class Spout(
     @SerializedName("description") val description: String
 )
 
+data class ApiVersion(
+        @SerializedName("version") val version: String,
+        @SerializedName("apiversion") val apiversion: String
+) {
+    fun getApiMajorVersion() : Int {
+        var versionNumber = 0
+        if (apiversion != null) {
+            versionNumber = apiversion.substringBefore(".").toInt()
+        }
+        return versionNumber
+    }
+}
+
 data class Source(
     @SerializedName("id") val id: String,
     @SerializedName("title") val title: String,

app/src/main/java/apps/amine/bou/readerforselfoss/api/selfoss/SelfossService.kt

@@ -103,6 +103,9 @@ internal interface SelfossService {
         @Query("password") password: String
     ): Call<List<Source>>
 
+    @GET("api/about")
+    fun version(): Call<ApiVersion>
+
     @DELETE("source/{id}")
     fun deleteSource(
         @Path("id") id: String,

app/src/main/java/apps/amine/bou/readerforselfoss/utils/ItemsUtils.kt

@@ -4,6 +4,7 @@ import android.content.Context
 import android.text.format.DateUtils
 import apps.amine.bou.readerforselfoss.api.selfoss.Item
 import apps.amine.bou.readerforselfoss.api.selfoss.SelfossTagType
+import apps.amine.bou.readerforselfoss.dateTimeFormatter
 import java.text.ParseException
 import java.text.SimpleDateFormat
 import java.util.*
@@ -22,7 +23,7 @@ fun String.toTextDrawableString(c: Context): String {
 fun Item.sourceAndDateText(): String {
     val formattedDate: String = try {
         " " + DateUtils.getRelativeTimeSpanString(
-            SimpleDateFormat("yyyy-MM-dd HH:mm:ss").parse(this.datetime).time,
+            SimpleDateFormat(dateTimeFormatter).parse(this.datetime).time,
             Date().time,
             DateUtils.MINUTE_IN_MILLIS,
             DateUtils.FORMAT_ABBREV_RELATIVE