Merge pull request #5190 from rubyforgood/local-time

Render Local Time

app/components/local_time_component.html.erb

@@ -0,0 +1 @@
+<div><%= local_time %></div>

app/components/local_time_component.rb

@@ -0,0 +1,34 @@
+# frozen_string_literal: true
+
+class LocalTimeComponent < ViewComponent::Base
+  include ActionController::Cookies
+  attr_reader :format, :unix_timestamp
+
+  def initialize(format:, unix_timestamp:)
+    @format = format
+    @unix_timestamp = unix_timestamp
+  end
+
+  def local_time
+    # Time format should be passed as 12 or 24 only
+    unless [12, 24].include?(format)
+      raise ArgumentError, "Invalid time format argument"
+    end
+
+    time = Time.at(unix_timestamp).in_time_zone(@time_zone)
+    time_format = format == 12 ? "%I:%M %p" : "%H:%M"
+    formatted_date = time.strftime("%B %d, %Y")
+    time_of_day = time.strftime(time_format)
+    time_zone = time.zone
+    formatted_date + " at " + time_of_day + " " + time_zone
+  end
+
+  private
+
+  def before_render
+    browser_tz = ActiveSupport::TimeZone.find_tzinfo(cookies[:browser_time_zone])
+    ActiveSupport::TimeZone.all.find { |zone| zone.tzinfo == browser_tz } || Time.zone
+  rescue TZInfo::UnknownTimezone, TZInfo::InvalidTimezoneIdentifier
+    @time_zone = Time.zone
+  end
+end

spec/components/local_time_component_spec.rb

@@ -0,0 +1,17 @@
+# frozen_string_literal: true
+
+require "rails_helper"
+
+RSpec.describe LocalTimeComponent, type: :component do
+  it "render correct date from user local time" do
+    component = described_class.new(format: 12, unix_timestamp: 1693825843)
+    render_inline(component)
+    expect(page).to have_text("September 04, 2023")
+  end
+
+  it "does not render correct date from user local time" do
+    component = described_class.new(format: 12, unix_timestamp: 1693825843)
+    render_inline(component)
+    expect(page).to_not have_text("September 06, 2023")
+  end
+end