Aggiunge i tornei con hub, pagina pubblica e tabellone per semifinali e finali.

Co-authored-by: Cursor <cursoragent@cursor.com>

backend/app/helpers/public/tournaments_helper.rb

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+module Public
+  module TournamentsHelper
+    def tournament_team_chip(participant, name: nil)
+      label = name.presence || participant&.name.presence || t("tournaments.tbd")
+      logo = participant&.effective_logo_url
+      content_tag(:span, class: "tournament-team-chip") do
+        parts = []
+        if logo.present?
+          parts << image_tag(logo, alt: "", width: 28, height: 28)
+        end
+        parts << content_tag(:span, label)
+        safe_join(parts)
+      end
+    end
+
+    def tournament_datetime_local(time)
+      time&.in_time_zone&.strftime("%Y-%m-%dT%H:%M")
+    end
+
+    def tournament_invite_default_html(tournament, invited_by)
+      Tournaments::ComposeInviteEmail.default_html(tournament: tournament, invited_by: invited_by)
+    end
+
+    def tournament_invite_editor_html(tournament, invited_by)
+      stored = tournament.invite_draft_html.to_s
+      return tournament_invite_default_html(tournament, invited_by) if stored.blank?
+
+      Tournaments::ComposeInviteEmail.sanitize_html(stored)
+    end
+
+    def tournament_streaming_operator_label(user)
+      user&.name.presence || user&.email.presence || "—"
+    end
+
+    def tournament_pending_invites_for(match)
+      Array(@pending_invites_by_match_id&.[](match.id))
+    end
+
+    def tournament_invite_cancel_confirm(invitation)
+      count = @matches.to_a.count { |match| invitation.covers_match?(match) }
+      if count > 1
+        t("tournaments.hub.streaming_cancel_multi", email: invitation.email, count: count)
+      else
+        t("tournaments.hub.streaming_cancel", email: invitation.email)
+      end
+    end
+
+    def tournament_matches_grouped_by_date(matches)
+      matches.group_by { |match| match.scheduled_at&.in_time_zone&.to_date }
+    end
+
+    def tournament_streaming_coverage(matches)
+      assigned = pending = open = 0
+      matches.each do |match|
+        if match.broadcast_assignments.any?
+          assigned += 1
+        elsif tournament_pending_invites_for(match).any?
+          pending += 1
+        else
+          open += 1
+        end
+      end
+      { assigned: assigned, pending: pending, open: open, total: matches.size }
+    end
+
+    def tournament_broadcast_live_state(match)
+      sessions = match.stream_sessions.to_a
+      latest = sessions.max_by(&:created_at)
+      if latest && !latest.status.in?(%w[ended error])
+        return :live if latest.status.in?(%w[live reconnecting paused])
+
+        return :waiting_operator
+      end
+      return :ended if sessions.any? { |session| session.status.in?(%w[ended error]) } || match.played?
+
+      if match.broadcast_assignments.any?
+        return :waiting_time if match.scheduled_upcoming?
+
+        return :waiting_operator
+      end
+      return :waiting_operator if tournament_pending_invites_for(match).any?
+
+      :uncovered
+    end
+
+    def tournament_streaming_live_counts(matches)
+      counts = Hash.new(0)
+      matches.each { |match| counts[tournament_broadcast_live_state(match)] += 1 }
+      counts
+    end
+
+    def tournament_public_live_session(match)
+      @live_by_match_id&.[](match.id)
+    end
+
+    def tournament_public_recording(match)
+      @recording_by_match_id&.[](match.id)
+    end
+
+    def tournament_public_board_state(match)
+      return :live if tournament_public_live_session(match)
+      return :replay if tournament_public_recording(match)
+      return :scheduled if match.scheduled_upcoming?
+      return :ended if match.played? || match.home_score.present?
+
+      :waiting
+    end
+
+    def tournament_public_score_label(match)
+      return "#{match.home_score}–#{match.away_score}" if match.home_score.present? && match.away_score.present?
+
+      session = tournament_public_live_session(match)
+      score = session&.score_state
+      return unless score
+
+      "#{score.home_points}–#{score.away_points}"
+    end
+
+    def tournament_match_sides_locked?(match)
+      match.played? || match.result_status.to_s.start_with?("walkover")
+    end
+
+    def tournament_phase_label(match)
+      match.tournament_round&.name.presence || match.tournament_group&.name.presence || "—"
+    end
+
+    def tournament_side_blank_label(match, side)
+      source = tournament_side_source_label(match, side)
+      source.presence || t("tournaments.tbd")
+    end
+
+    def tournament_side_source_label(match, side)
+      kind = match.public_send("#{side}_source_kind").to_s
+      case kind
+      when "winner_match"
+        source = tournament_source_match(match, side)
+        return t("tournaments.hub.winner_tbd") if source.blank?
+
+        t("tournaments.hub.winner_of", match: source.matchup_label)
+      when "group_rank"
+        group = tournament_source_group(match, side)
+        rank = match.public_send("#{side}_source_rank").to_i
+        return t("tournaments.hub.group_rank_tbd") if group.blank? || rank <= 0
+
+        t("tournaments.hub.group_rank", group: group.name, rank: rank)
+      end
+    end
+
+    def tournament_source_match(match, side)
+      id = match.public_send("#{side}_source_match_id")
+      return if id.blank?
+
+      @matches&.find { |item| item.id == id } || Match.find_by(id: id)
+    end
+
+    def tournament_source_group(match, side)
+      id = match.public_send("#{side}_source_group_id")
+      return if id.blank?
+
+      @groups&.find { |item| item.id == id } || TournamentGroup.find_by(id: id)
+    end
+  end
+end