Moves all hashtags to lowercase and unfollows with ignore case just in case some other client added in uppercase

quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/nip51Lists/TagArrayExt.kt

@@ -24,6 +24,7 @@ import com.vitorpamplona.quartz.nip01Core.core.Tag
 import com.vitorpamplona.quartz.nip01Core.core.TagArray
 import com.vitorpamplona.quartz.utils.startsWith
 import com.vitorpamplona.quartz.utils.startsWithAny
+import com.vitorpamplona.quartz.utils.startsWithIgnoreCase
 
 inline fun TagArray.filterToArray(predicate: (Array<String>) -> Boolean): TagArray = filterTo(ArrayList(), predicate).toTypedArray()
 
@@ -31,6 +32,8 @@ inline fun TagArray.remove(predicate: (Array<String>) -> Boolean): TagArray = fi
 
 fun TagArray.remove(startsWith: Array<String>): TagArray = filterNotTo(ArrayList(this.size), { it.startsWith(startsWith) }).toTypedArray()
 
+fun TagArray.removeIgnoreCase(startsWith: Array<String>): TagArray = filterNotTo(ArrayList(this.size), { it.startsWithIgnoreCase(startsWith) }).toTypedArray()
+
 fun <R> TagArray.removeParsing(
     transform: (Tag) -> R,
     equalsTo: R,

quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/nip51Lists/hashtagList/HashtagListEvent.kt

@@ -36,8 +36,8 @@ import com.vitorpamplona.quartz.nip31Alts.alt
 import com.vitorpamplona.quartz.nip51Lists.PrivateTagArrayEvent
 import com.vitorpamplona.quartz.nip51Lists.encryption.PrivateTagsInContent
 import com.vitorpamplona.quartz.nip51Lists.encryption.signNip51List
-import com.vitorpamplona.quartz.nip51Lists.remove
 import com.vitorpamplona.quartz.nip51Lists.removeAny
+import com.vitorpamplona.quartz.nip51Lists.removeIgnoreCase
 import com.vitorpamplona.quartz.utils.TimeUtils
 
 @Immutable
@@ -140,8 +140,8 @@ class HashtagListEvent(
         ): HashtagListEvent {
             val privateTags = earlierVersion.privateTags(signer) ?: throw SignerExceptions.UnauthorizedDecryptionException()
             return resign(
-                privateTags = privateTags.remove(HashtagTag.assemble(hashtag)),
-                tags = earlierVersion.tags.remove(HashtagTag.assemble(hashtag)),
+                privateTags = privateTags.removeIgnoreCase(HashtagTag.assemble(hashtag)),
+                tags = earlierVersion.tags.removeIgnoreCase(HashtagTag.assemble(hashtag)),
                 signer = signer,
                 createdAt = createdAt,
             )

quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/utils/ArrayUtils.kt

@@ -40,6 +40,14 @@ fun Array<String>.startsWith(startsWith: Array<String>): Boolean {
     return true
 }
 
+fun Array<String>.startsWithIgnoreCase(startsWith: Array<String>): Boolean {
+    if (startsWith.size > this.size) return false
+    for (tagIdx in startsWith.indices) {
+        if (!startsWith[tagIdx].equals(this[tagIdx], ignoreCase = true)) return false
+    }
+    return true
+}
+
 fun Array<String>.startsWithAny(startsWithList: List<Array<String>>): Boolean = startsWithList.any { startsWith(it) }
 
 public inline fun <T, R> Array<out T>.lastNotNullOfOrNull(transform: (T) -> R?): R? {