SU2-19 | Парсинг двух форм, пока без понимания того, что делать с расхожениями в данных (обе формы в одном файле)

app/services/report_parsers/base_parser.rb

@@ -0,0 +1,100 @@
+require 'set'
+
+module ReportParsers
+  class BaseParser
+    def initialize(yearly_file, spreadsheet:)
+      @yearly_file = yearly_file
+      @spreadsheet = spreadsheet
+    end
+
+    private
+
+    attr_reader :yearly_file, :spreadsheet
+
+    def sheet_exists?(sheet_name)
+      spreadsheet.sheets.include?(sheet_name)
+    end
+
+    def read_cell(sheet, row, col)
+      value = sheet.cell(row, col)
+
+      # Handle merged cells: if value is nil/blank, try reading from nearby cells
+      if value.blank? && sheet.respond_to?(:merged_cells)
+        value = find_merged_cell_value(sheet, row, col)
+      end
+
+      value.is_a?(String) ? value.strip.presence : value
+    end
+
+    def find_merged_cell_value(sheet, row, col)
+      # Try to find value in merged cell range
+      # Check cells in a small radius around the target cell
+      (-1..1).each do |row_offset|
+        (-1..1).each do |col_offset|
+          next if row_offset == 0 && col_offset == 0
+
+          check_row = row + row_offset
+          check_col = col + col_offset
+
+          next if check_row < 1 || check_col < 1
+          next if check_row > sheet.last_row || check_col > sheet.last_column
+
+          value = sheet.cell(check_row, check_col)
+          return value if value.present?
+        end
+      end
+
+      nil
+    end
+
+    def find_value_by_labels(sheet, labels, row_range:, value_offset: 1)
+      position = find_label_position(sheet, labels, row_range: row_range)
+      return if position.nil?
+
+      row, col = position
+
+      max_col = sheet.last_column.to_i
+      (col + value_offset).upto(max_col) do |search_col|
+        value = read_cell(sheet, row, search_col)
+        return value if value.present?
+      end
+
+      nil
+    end
+
+    def find_label_position(sheet, labels, row_range:)
+      normalized_labels = Array(labels).map { |label| normalize_label(label) }.to_set
+      max_col = sheet.last_column.to_i
+      return if max_col <= 1
+
+      row_range.each do |row|
+        1.upto(max_col - 1) do |col|
+          label_text = normalize_label(sheet.cell(row, col))
+          next if label_text.blank?
+          next unless label_matches?(label_text, normalized_labels)
+
+          return [row, col]
+        end
+      end
+
+      nil
+    end
+
+    def label_matches?(label_text, normalized_labels)
+      normalized_labels.any? do |label|
+        label_text == label ||
+          label_text.start_with?("#{label} ") ||
+          label_text.start_with?("#{label}:")
+      end
+    end
+
+    def normalize_label(value)
+      value.to_s
+           .downcase
+           .tr("\u00A0", ' ')
+           .gsub(/\s+/, ' ')
+           .gsub(/[«»]/, '')
+           .strip
+    end
+  end
+end