From e0b7a0e87e97735e79f87cace73ef9e7b230c4e7 Mon Sep 17 00:00:00 2001
From: Claude <noreply@anthropic.com>
Date: Sun, 22 Mar 2026 15:42:17 +0000
Subject: [PATCH] Add tap-to-filter posts by user ID in thread view

Tapping a poster's colored ID badge now filters the thread to show
only posts from that user. A banner at the bottom shows the active
filter with post count and an X button to clear it. Tapping the same
ID again also clears the filter. The filter also appears as a chip
in the search toolbar when searching.

https://claude.ai/code/session_012Wd384Z4N4PGehDv6Lbn4N
---
 .../Boards/Catalog/Thread/PostView.swift      | 14 ++++++
 .../Boards/Catalog/Thread/ThreadView.swift    | 45 +++++++++++++++++++
 2 files changed, 59 insertions(+)

diff --git a/swiftchan/Views/Boards/Catalog/Thread/PostView.swift b/swiftchan/Views/Boards/Catalog/Thread/PostView.swift
index df7d201..427686f 100644
--- a/swiftchan/Views/Boards/Catalog/Thread/PostView.swift
+++ b/swiftchan/Views/Boards/Catalog/Thread/PostView.swift
@@ -94,6 +94,7 @@ struct PostView: View {
                             }
                             if let id = post.pid {
                                 let color = Color.randomColor(seed: id)
+                                let isFiltered = viewModel.searchFilters.posterID == id
                                 Text(id.description)
                                     .foregroundColor(Color.isRandomColorLight(seed: id) ? .black : .white)
                                     .background(
@@ -102,7 +103,20 @@ struct PostView: View {
                                             .cornerRadius(5)
                                             .padding(.horizontal, -5)
                                     )
+                                    .overlay(
+                                        RoundedRectangle(cornerRadius: 5)
+                                            .stroke(Color.accentColor, lineWidth: isFiltered ? 2 : 0)
+                                            .padding(.horizontal, -5)
+                                    )
                                     .offset(x: 5)
+                                    .onTapGesture {
+                                        UIImpactFeedbackGenerator(style: .light).impactOccurred()
+                                        if viewModel.searchFilters.posterID == id {
+                                            viewModel.searchFilters.posterID = nil
+                                        } else {
+                                            viewModel.searchFilters.posterID = id
+                                        }
+                                    }
 
                             }
                             // Anonymous
diff --git a/swiftchan/Views/Boards/Catalog/Thread/ThreadView.swift b/swiftchan/Views/Boards/Catalog/Thread/ThreadView.swift
index e6c8227..6777f79 100644
--- a/swiftchan/Views/Boards/Catalog/Thread/ThreadView.swift
+++ b/swiftchan/Views/Boards/Catalog/Thread/ThreadView.swift
@@ -106,6 +106,8 @@ struct ThreadView: View {
                 .overlay(alignment: .bottom) {
                     if isSearching && !viewModel.searchResultIndices.isEmpty {
                         searchToolbar
+                    } else if viewModel.searchFilters.posterID != nil {
+                        posterIDFilterBanner
                     }
                 }
                 .overlay {
@@ -305,6 +307,16 @@ struct ThreadView: View {
                             viewModel.searchFilters.hasReplies.toggle()
                         }
                     )
+
+                    if let posterID = viewModel.searchFilters.posterID {
+                        FilterChip(
+                            label: "ID: \(posterID)",
+                            isSelected: true,
+                            action: {
+                                viewModel.searchFilters.posterID = nil
+                            }
+                        )
+                    }
                 }
                 .padding(.horizontal)
             }
@@ -338,6 +350,39 @@ struct ThreadView: View {
         .background(.regularMaterial)
     }
 
+    @ViewBuilder
+    var posterIDFilterBanner: some View {
+        if let posterID = viewModel.searchFilters.posterID {
+            HStack {
+                let color = Color.randomColor(seed: posterID)
+                Text("Showing posts by")
+                    .font(.subheadline)
+                    .foregroundColor(.secondary)
+                Text(posterID)
+                    .font(.subheadline)
+                    .bold()
+                    .foregroundColor(Color.isRandomColorLight(seed: posterID) ? .black : .white)
+                    .padding(.horizontal, 8)
+                    .padding(.vertical, 2)
+                    .background(color)
+                    .cornerRadius(5)
+                Text("(\(viewModel.searchResultIndices.count))")
+                    .font(.subheadline)
+                    .foregroundColor(.secondary)
+                Spacer()
+                Button {
+                    viewModel.searchFilters.posterID = nil
+                } label: {
+                    Image(systemName: "xmark.circle.fill")
+                        .foregroundColor(.secondary)
+                }
+            }
+            .padding(.horizontal)
+            .padding(.vertical, 8)
+            .background(.regularMaterial)
+        }
+    }
+
     private func fetchAndPrefetchMedia(auto: Bool = false) async {
         let hadPosts = !viewModel.posts.isEmpty
         await viewModel.getPosts()