add opt-out from anonymous map (#149)

* add field & ui for map opt out

* no opters out in map data gen

app/controllers/public/settings_controller.rb

@@ -0,0 +1,14 @@
+module Public
+  class SettingsController < ApplicationController
+    before_action :authenticate_public_user!
+
+    def anonymous_map
+    end
+
+    def update_anonymous_map
+      current_public_user.update!(opted_out_of_map: params[:opt] == "out")
+      flash[:success] = "k, pls wait for the map to recache itself"
+      redirect_to anonymous_map_path
+    end
+  end
+end

app/jobs/public/update_map_data_job.rb

@@ -10,13 +10,14 @@ class Public::UpdateMapDataJob < ApplicationJob
   private
 
   def fetch_recent_letters_data
-    # Get mailed letters (any time) and letters received in the last 7 days
+    the_paranoid_few = Public::User.where(opted_out_of_map: true).pluck(:email)
     recent_letters = Letter.joins(:address, :return_address)
-      .where(
-        "aasm_state = 'mailed' OR (aasm_state = 'received' AND received_at >= ?)",
-        7.days.ago
-      )
-      .includes(:iv_mtr_events, :address, :return_address)
+                           .where(
+                             "aasm_state = 'mailed' OR (aasm_state = 'received' AND received_at >= ?)",
+                             7.days.ago
+                           )
+                           .includes(:iv_mtr_events, :address, :return_address)
+                           .where.not(recipient_email: the_paranoid_few)
 
     letters_data = recent_letters.map do |letter|
       event_coords = build_letter_event_coordinates(letter)

app/models/public/user.rb

@@ -2,10 +2,11 @@
 #
 # Table name: public_users
 #
-#  id         :bigint           not null, primary key
-#  email      :string
-#  created_at :datetime         not null
-#  updated_at :datetime         not null
+#  id               :bigint           not null, primary key
+#  email            :string
+#  opted_out_of_map :boolean          default(FALSE)
+#  created_at       :datetime         not null
+#  updated_at       :datetime         not null
 #
 class Public::User < ApplicationRecord
   has_many :login_codes

app/views/public/settings/anonymous_map.html.erb

@@ -0,0 +1,22 @@
+<% oo = current_public_user.opted_out_of_map? %>
+<div class="window" style="width: 320px">
+  <div class="title-bar">
+    <div class="title-bar-text">Opt in or out of the anonymous map</div>
+    <div class="title-bar-controls">
+      <%= w95_title_button_to("Close", public_root_path) %>
+    </div>
+  </div>
+  <div class="window-body">
+    <%= form_with url: update_anonymous_map_path, data: {turbo: false} do |form| %>
+      Your letters currently <b><%= oo ? "don't" : "do" %></b> show up on the anonymous <%= link_to "letter map", map_path %>. <br/>
+      <%= oo ? "They wouldn't be" : "They're not" %> associated with your identity in any way, and the displayed coordinates <%= oo ? "would be" : "are" %> offset from your actual location. <br/> <br/>
+      <% if current_public_user.opted_out_of_map? %>
+        <%= hidden_field_tag :opt, "in" %>
+        <%= form.submit "actually, on second thought i'm cool with that" %>
+      <% else %>
+        <%= hidden_field_tag :opt, "out" %>
+        <%= form.submit "don't show my approximate location in aggregate please" %>
+      <% end %>
+    <% end %>
+  </div>
+</div>

config/routes.rb

@@ -602,6 +602,9 @@ Rails.application.routes.draw do
   get "/lsv/msr/:id/customs_receipt", to: "public/lsv#customs_receipt", as: :msr_customs_receipt
   post "/lsv/msr/:id/customs_receipt", to: "public/lsv#generate_customs_receipt", as: :msr_generate_customs_receipt
 
+  get "/settings/anonymous_map", to: "public/settings#anonymous_map", as: :anonymous_map
+  post "/settings/anonymous_map", to: "public/settings#update_anonymous_map", as: :update_anonymous_map
+
   get "/packages/:id/customs_receipt", to: "public/packages#customs_receipt", as: :package_customs_receipt
   post "/packages/:id/customs_receipt", to: "public/packages#generate_customs_receipt", as: :package_generate_customs_receipt
 

db/migrate/20250729204357_add_map_optout_to_public_users.rb

@@ -0,0 +1,5 @@
+class AddMapOptoutToPublicUsers < ActiveRecord::Migration[8.0]
+  def change
+    add_column :public_users, :opted_out_of_map, :boolean, default: false
+  end
+end

db/schema.rb

@@ -10,7 +10,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema[8.0].define(version: 2025_06_01_023335) do
+ActiveRecord::Schema[8.0].define(version: 2025_07_29_204357) do
   # These are extensions that must be enabled in order to support this database
   enable_extension "citext"
   enable_extension "pg_catalog.plpgsql"
@@ -372,6 +372,7 @@ ActiveRecord::Schema[8.0].define(version: 2025_06_01_023335) do
     t.string "email"
     t.datetime "created_at", null: false
     t.datetime "updated_at", null: false
+    t.boolean "opted_out_of_map", default: false
   end
 
   create_table "return_addresses", force: :cascade do |t|