From e6b0b41e807a64b8340def2eccc0c318684e5f6d Mon Sep 17 00:00:00 2001
From: Vitor Pamplona <vitor@vitorpamplona.com>
Date: Wed, 7 May 2025 13:46:39 -0400
Subject: [PATCH] Adds a Normal Nostr filter as a PerRelay filter

---
 .../ammolite/relays/filters/NormalFilter.kt   | 57 +++++++++++++++++++
 1 file changed, 57 insertions(+)
 create mode 100644 ammolite/src/main/java/com/vitorpamplona/ammolite/relays/filters/NormalFilter.kt

diff --git a/ammolite/src/main/java/com/vitorpamplona/ammolite/relays/filters/NormalFilter.kt b/ammolite/src/main/java/com/vitorpamplona/ammolite/relays/filters/NormalFilter.kt
new file mode 100644
index 000000000..b388f1899
--- /dev/null
+++ b/ammolite/src/main/java/com/vitorpamplona/ammolite/relays/filters/NormalFilter.kt
@@ -0,0 +1,57 @@
+/**
+ * Copyright (c) 2024 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.ammolite.relays.filters
+
+import com.vitorpamplona.quartz.nip01Core.core.Event
+import com.vitorpamplona.quartz.nip01Core.jackson.EventMapper
+import com.vitorpamplona.quartz.nip01Core.relay.filters.Filter
+import com.vitorpamplona.quartz.nip01Core.relay.filters.FilterMatcher
+import com.vitorpamplona.quartz.nip01Core.relay.filters.FilterSerializer
+
+/**
+ * This is a nostr filter with per-relay authors list and since parameters
+ */
+class NormalFilter(
+    val ids: List<String>? = null,
+    val authors: List<String>? = null,
+    val kinds: List<Int>? = null,
+    val tags: Map<String, List<String>>? = null,
+    val since: Long? = null,
+    val until: Long? = null,
+    val limit: Int? = null,
+    val search: String? = null,
+) : IPerRelayFilter {
+    override fun isValidFor(url: String) = true
+
+    override fun toRelay(forRelay: String) = Filter(ids, authors, kinds, tags, since, until, limit, search)
+
+    override fun toJson(forRelay: String) = FilterSerializer.toJson(ids, authors, kinds, tags, since, until, limit, search)
+
+    override fun match(
+        event: Event,
+        forRelay: String,
+    ) = FilterMatcher.match(event, ids, authors, kinds, tags, since, until)
+
+    override fun toDebugJson(): String {
+        val obj = FilterSerializer.toJsonObject(ids, authors, kinds, tags, since, until, limit, search)
+        return EventMapper.toJson(obj)
+    }
+}