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# frozen_string_literal: true
module Issuable
module ImportCsv
class BaseService
def initialize(user, project, csv_io)
@user = user
@project = project
@csv_io = csv_io
@results = { success: 0, error_lines: [], parse_error: false }
end
def execute
process_csv
email_results_to_user
@results
end
private
def process_csv
with_csv_lines.each do |row, line_no|
issuable_attributes = {
title: row[:title],
description: row[:description]
}
if create_issuable(issuable_attributes).persisted?
@results[:success] += 1
else
@results[:error_lines].push(line_no)
end
end
rescue ArgumentError, CSV::MalformedCSVError
@results[:parse_error] = true
end
def with_csv_lines
csv_data = @csv_io.open(&:read).force_encoding(Encoding::UTF_8)
verify_headers!(csv_data)
csv_parsing_params = {
col_sep: detect_col_sep(csv_data.lines.first),
headers: true,
header_converters: :symbol
}
CSV.new(csv_data, csv_parsing_params).each.with_index(2)
end
def verify_headers!(data)
headers = data.lines.first.downcase
return if headers.include?('title') && headers.include?('description')
raise CSV::MalformedCSVError
end
def detect_col_sep(header)
if header.include?(",")
","
elsif header.include?(";")
";"
elsif header.include?("\t")
"\t"
else
raise CSV::MalformedCSVError
end
end
def create_issuable(attributes)
create_issuable_class.new(@project, @user, attributes).execute
end
def email_results_to_user
# defined in ImportCsvService
end
def create_issuable_class
# defined in ImportCsvService
end
end
end
end
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