From cb5f61668d84c8e72c94fc1960140887e58a8104 Mon Sep 17 00:00:00 2001
From: Rustam Ibragimov <iamdaiver@gmail.com>
Date: Sat, 14 Mar 2020 14:42:58 +0300
Subject: [PATCH] [csv-uploader] Start of CSV uplaoder

---
 lib/qonfig.rb               |  1 +
 lib/qonfig/uploaders.rb     |  1 +
 lib/qonfig/uploaders/csv.rb | 58 +++++++++++++++++++++++++++++++++++++
 3 files changed, 60 insertions(+)
 create mode 100644 lib/qonfig/uploaders/csv.rb

diff --git a/lib/qonfig.rb b/lib/qonfig.rb
index 6aff0075..9dc957bb 100644
--- a/lib/qonfig.rb
+++ b/lib/qonfig.rb
@@ -3,6 +3,7 @@
 require 'set'
 require 'yaml'
 require 'json'
+require 'csv'
 require 'erb'
 require 'pathname'
 
diff --git a/lib/qonfig/uploaders.rb b/lib/qonfig/uploaders.rb
index 2fd8ccb3..d9da7a39 100644
--- a/lib/qonfig/uploaders.rb
+++ b/lib/qonfig/uploaders.rb
@@ -7,4 +7,5 @@ module Qonfig::Uploaders
   require_relative 'uploaders/file'
   require_relative 'uploaders/json'
   require_relative 'uploaders/yaml'
+  require_relative 'uploaders/csv'
 end
diff --git a/lib/qonfig/uploaders/csv.rb b/lib/qonfig/uploaders/csv.rb
new file mode 100644
index 00000000..0187cad5
--- /dev/null
+++ b/lib/qonfig/uploaders/csv.rb
@@ -0,0 +1,58 @@
+# frozen_string_literal: true
+
+# @api private
+# @since 0.25.0
+class Qonfig::Uploaders::CSV < Qonfig::Uplaoders::Base
+  # @return [String]
+  #
+  # @api private
+  # @since 0.25.0
+  FILE_OPENING_MODE = 'w'
+
+  # @return [Hash<Symbol,Any>]
+  #
+  # @api private
+  # @since 0.25.0
+  DEFAULT_OPTIONS = {
+    col_sep: '',
+    row_sep: :auto,
+    quote_char: '"',
+    field_size_limit: nil,
+    converters: nil,
+    unconverted_fields: nil,
+    headers: false,
+    return_headers: false,
+    write_headers: nil,
+    header_converters: nil,
+    skip_blanks: false,
+    force_quotes: false,
+    skip_lines: nil,
+    liberal_parsing: false,
+    internal_encoding: nil,
+    external_encoding: nil,
+    encoding: nil,
+    nil_value: nil,
+    empty_value: '',
+    quote_empty: true,
+    write_converters: nil,
+    write_nil_value: nil,
+    write_empty_value: '',
+    strip: false
+  }.freeze
+
+  class << self
+    # @param settings [Qonfig::Settings]
+    # @param value_processor [Block]
+    # @option path [String, Pathname]
+    # @option options [Hash<Symbol|String,Any>]
+    # @return [void]
+    #
+    # @api private
+    # @since 0.11.0
+    def upload(settings, path:, options: self::DEFAULT_OPTIONS, &value_processor)
+      ::CSV.open(path, FILE_OPENING_MODE, **options) do |csv_descriptor|
+        # TODO: realize
+      end
+    end
+  end
+end