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# frozen_string_literal: true
module MergeRequests
class OutdatedDiscussionDiffLinesService
include Gitlab::Utils::StrongMemoize
attr_reader :project, :note
OVERFLOW_LINES_COUNT = 2
def initialize(project:, note:)
@project = project
@note = note
end
def execute
line_position = position.line_range["end"] || position.line_range["start"]
found_line = false
diff_line_index = -1
diff_lines.each_with_index do |l, i|
if found_line
if !l.type
break
elsif l.type == 'new'
diff_line_index = i
break
end
else
# Find the old line
found_line = l.old_line == line_position["new_line"]
end
diff_line_index = i
end
initial_line_index = [diff_line_index - OVERFLOW_LINES_COUNT, 0].max
last_line_index = [diff_line_index + OVERFLOW_LINES_COUNT, diff_lines.length].min
prev_lines = []
diff_lines[initial_line_index..last_line_index].each do |line|
if line.meta?
prev_lines.clear
else
prev_lines << line
end
end
prev_lines
end
private
def position
note.change_position
end
def repository
project.repository
end
def diff_file
position.diff_file(repository)
end
def diff_lines
strong_memoize(:diff_lines) do
diff_file.highlighted_diff_lines
end
end
end
end
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