Adds a task for fetching data from wiki

Can be used to fetch one object or multiple

lib/tasks/fetch_wiki.rake

@@ -0,0 +1,79 @@
+namespace :granblue do
+  desc <<~DESC
+    Fetch and store raw wiki data for objects (Character, Weapon, Summon).
+
+    Usage:
+      rake granblue:fetch_wiki_data                     # Fetch all Characters (default)
+      rake granblue:fetch_wiki_data type=Weapon         # Fetch all Weapons
+      rake granblue:fetch_wiki_data type=Summon         # Fetch all Summons
+      rake granblue:fetch_wiki_data type=Character id=5 # Fetch specific Character by ID
+      rake granblue:fetch_wiki_data force=true          # Force re-download even if data exists
+  DESC
+  task fetch_wiki_data: :environment do
+    # Get parameters from environment
+    type = (ENV['type'] || 'Character').classify
+    id = ENV['id']
+    force = ENV['force'] == 'true'
+
+    # Validate object type
+    valid_types = %w[Character Weapon Summon]
+    unless valid_types.include?(type)
+      puts "Error: Invalid type '#{type}'. Must be one of: #{valid_types.join(', ')}"
+      exit 1
+    end
+
+    # Get the class from the type string
+    klass = type.constantize
+
+    # Setup query - either all objects or specific one
+    query = id.present? ? klass.where(granblue_id: id) : klass.all
+
+    errors = []
+    count = 0
+
+    query.find_each do |object|
+      # Skip objects that already have wiki_raw if force is not set
+      if object.wiki_raw.present? && !force
+        puts "Skipping #{object.name_en} (already has wiki_raw)."
+        next
+      end
+
+      # If the object doesn't have a wiki page specified, skip
+      if object.wiki_en.blank?
+        puts "Skipping #{object.name_en} (no wiki_en set)."
+        next
+      end
+
+      begin
+        # 1) Fetch raw wikitext from the wiki
+        wiki_text = Granblue::Parsers::Wiki.new.fetch(object.wiki_en)
+
+        # 2) Check if the page is a redirect
+        redirect_match = wiki_text.match(/#REDIRECT \[\[(.*?)\]\]/)
+        if redirect_match
+          redirect_target = redirect_match[1]
+          # Update object to new wiki_en so we don't keep fetching the old page
+          object.update!(wiki_en: redirect_target)
+          # Fetch again with the new page name
+          wiki_text = Granblue::Parsers::Wiki.new.fetch(redirect_target)
+        end
+        puts wiki_text
+
+        # 3) Save raw wiki text in the object record
+        object.update!(wiki_raw: wiki_text)
+        puts "Saved wiki data for #{object.name_en} (#{object.id})"
+        count += 1
+      rescue StandardError => e
+        errors << { object_id: object.id, type: type, error: e.message }
+        puts "Error fetching data for #{object.name_en}: #{e.message}"
+      end
+    end
+
+    if errors.any?
+      puts "#{errors.size} #{type.pluralize} had errors:"
+      errors.each { |err| puts "  - #{err[:type]} ##{err[:object_id]} => #{err[:error]}" }
+    else
+      puts "Wiki data fetch complete for #{count} #{type.pluralize} with no errors!"
+    end
+  end
+end