From b3c1b634bf9d4493eb0115573e11d25b1858cf9c Mon Sep 17 00:00:00 2001
From: Alessandro Lepore <lepore.ale@gmail.com>
Date: Wed, 14 Jun 2023 23:48:48 +0200
Subject: [PATCH] Add basic weather alert report

---
 lib/fortuna_luca/reports/allerta_meteo.rb     | 47 +++++++++++++++++++
 .../weather/allerta_meteo/client.rb           | 20 ++++++++
 rakelib/send_allerta_meteo_report.rake        |  5 ++
 3 files changed, 72 insertions(+)
 create mode 100644 lib/fortuna_luca/reports/allerta_meteo.rb
 create mode 100644 lib/fortuna_luca/weather/allerta_meteo/client.rb
 create mode 100644 rakelib/send_allerta_meteo_report.rake

diff --git a/lib/fortuna_luca/reports/allerta_meteo.rb b/lib/fortuna_luca/reports/allerta_meteo.rb
new file mode 100644
index 0000000..6e80168
--- /dev/null
+++ b/lib/fortuna_luca/reports/allerta_meteo.rb
@@ -0,0 +1,47 @@
+# frozen_string_literal: true
+
+require_relative "report"
+require_relative "../weather/allerta_meteo/client"
+
+module FortunaLuca
+  module Reports
+    class AllertaMeteo
+      include Report
+
+      def call
+        return unless show?
+
+        config.each do |chat_id|
+          send_telegram_message(chat_id, message) if message
+        end
+
+        true
+      end
+
+      private
+
+      def message
+        return unless tomorrow_entry
+
+        [
+          "⚠️ #{tomorrow_entry.title}",
+          tomorrow_entry.summary,
+          tomorrow_entry.links.first
+        ].join("\n")
+      end
+
+      def tomorrow_entry
+        @tomorrow_entry ||= feed_entries.first
+      end
+
+      def feed_entries
+        FortunaLuca::Weather::AllertaMeteo::Client.new.call
+      end
+
+      # JSON Config format: ["chat_id"]
+      def config
+        @config ||= JSON.parse(env_or_blank("REPORTS_ALLERTA_METEO_CONFIG"))
+      end
+    end
+  end
+end
diff --git a/lib/fortuna_luca/weather/allerta_meteo/client.rb b/lib/fortuna_luca/weather/allerta_meteo/client.rb
new file mode 100644
index 0000000..da314f4
--- /dev/null
+++ b/lib/fortuna_luca/weather/allerta_meteo/client.rb
@@ -0,0 +1,20 @@
+# frozen_string_literal: true
+
+require "httpclient"
+require "feedjira"
+
+module FortunaLuca
+  module Weather
+    module AllertaMeteo
+      class Client
+        URL = "https://allertameteo.regione.marche.it/compila-allerta-portlet/feed?feed=allerte-bollettini"
+
+        # @return [Array<Feedjira::Parser::AtomEntry>] The feed entries
+        def call
+          data = HTTPClient.get(URL).body
+          Feedjira.parse(data).entries
+        end
+      end
+    end
+  end
+end
diff --git a/rakelib/send_allerta_meteo_report.rake b/rakelib/send_allerta_meteo_report.rake
new file mode 100644
index 0000000..2e42088
--- /dev/null
+++ b/rakelib/send_allerta_meteo_report.rake
@@ -0,0 +1,5 @@
+require_relative '../lib/fortuna_luca/reports/allerta_meteo'
+
+task :send_allerta_meteo_report do
+  FortunaLuca::Reports::AllertaMeteo.new(Date.today.succ).call
+end