Add filters only with selfoss >= 2.19

Source filters have been implemented in 2014 (commit 849957ca) but there is no reliable way to determine whether the selfoss instance does support source filters.

shared/src/commonMain/kotlin/bou/amine/apps/readerforselfossv2/rest/SelfossApi.kt

@@ -642,14 +642,13 @@ class SelfossApi(
     ): SuccessResponse =
         maybeResponse(
             if (appSettingsService.getApiVersion() > 1) {
-                createSource("tags[]", title, url, spout, tags, filter)
+                createSource(title, url, spout, tags, filter)
             } else {
-                createSource("tags", title, url, spout, tags, filter)
+                createSourceOld(title, url, spout, tags)
             },
         )
 
     private suspend fun createSource(
-        tagsParamName: String,
         title: String,
         url: String,
         spout: String,
@@ -668,7 +667,47 @@ class SelfossApi(
                     append("url", url)
                     append("spout", spout)
                     append("filter", filter)
-                    append(tagsParamName, tags)
+                    append("tags[]", tags)
+                },
+            block = {
+                if (appSettingsService
+                        .getBasicUserName()
+                        .isNotEmpty() &&
+                    appSettingsService.getBasicPassword().isNotEmpty()
+                ) {
+                    headers {
+                        append(
+                            HttpHeaders.Authorization,
+                            constructBasicAuthValue(
+                                BasicAuthCredentials(
+                                    username = appSettingsService.getBasicUserName(),
+                                    password = appSettingsService.getBasicPassword(),
+                                ),
+                            ),
+                        )
+                    }
+                }
+            },
+        )
+
+    private suspend fun createSourceOld(
+        title: String,
+        url: String,
+        spout: String,
+        tags: String,
+    ): HttpResponse? =
+        client.tryToSubmitForm(
+            url = url("/source"),
+            formParameters =
+                Parameters.build {
+                    if (!shouldHavePostLogin()) {
+                        append("username", appSettingsService.getUserName())
+                        append("password", appSettingsService.getPassword())
+                    }
+                    append("title", title)
+                    append("url", url)
+                    append("spout", spout)
+                    append("tags", tags)
                 },
             block = {
                 if (appSettingsService
@@ -701,15 +740,14 @@ class SelfossApi(
     ): SuccessResponse =
         maybeResponse(
             if (appSettingsService.getApiVersion() > 1) {
-                updateSource(id, "tags[]", title, url, spout, tags, filter)
+                updateSource(id, title, url, spout, tags, filter)
             } else {
-                updateSource(id, "tags", title, url, spout, tags, filter)
+                updateSourceOld(id, title, url, spout, tags)
             },
         )
 
     private suspend fun updateSource(
         id: Int,
-        tagsParamName: String,
         title: String,
         url: String,
         spout: String,
@@ -727,7 +765,7 @@ class SelfossApi(
                     append("title", title)
                     append("url", url)
                     append("spout", spout)
-                    append(tagsParamName, tags)
+                    append("tags[]", tags)
                     append("filter", filter)
                 },
             block = {
@@ -751,6 +789,47 @@ class SelfossApi(
             },
         )
 
+    private suspend fun updateSourceOld(
+        id: Int,
+        title: String,
+        url: String,
+        spout: String,
+        tags: String,
+    ): HttpResponse? =
+        client.tryToSubmitForm(
+            url = url("/source/$id"),
+            formParameters =
+                Parameters.build {
+                    if (!shouldHavePostLogin()) {
+                        append("username", appSettingsService.getUserName())
+                        append("password", appSettingsService.getPassword())
+                    }
+                    append("title", title)
+                    append("url", url)
+                    append("spout", spout)
+                    append("tags", tags)
+                },
+            block = {
+                if (appSettingsService
+                        .getBasicUserName()
+                        .isNotEmpty() &&
+                    appSettingsService.getBasicPassword().isNotEmpty()
+                ) {
+                    headers {
+                        append(
+                            HttpHeaders.Authorization,
+                            constructBasicAuthValue(
+                                BasicAuthCredentials(
+                                    username = appSettingsService.getBasicUserName(),
+                                    password = appSettingsService.getBasicPassword(),
+                                ),
+                            ),
+                        )
+                    }
+                }
+            },
+        )
+
     suspend fun deleteSource(id: Int): SuccessResponse =
         maybeResponse(
             client.tryToDelete(url("/source/$id")) {