From f3b2d17b3417486946d7e3ec9a2c90d815808c5a Mon Sep 17 00:00:00 2001
From: jan00 <jan00@JBENICEK-NB>
Date: Sat, 28 Oct 2023 09:05:07 +0200
Subject: [PATCH] =?UTF-8?q?P=C5=99idejte=20soubory=20projektu.?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
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---
 CSVImporter.csproj |  9 +++++
 Importer.cs        | 89 ++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 98 insertions(+)
 create mode 100644 CSVImporter.csproj
 create mode 100644 Importer.cs

diff --git a/CSVImporter.csproj b/CSVImporter.csproj
new file mode 100644
index 0000000..132c02c
--- /dev/null
+++ b/CSVImporter.csproj
@@ -0,0 +1,9 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net6.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+</Project>
diff --git a/Importer.cs b/Importer.cs
new file mode 100644
index 0000000..f38a37c
--- /dev/null
+++ b/Importer.cs
@@ -0,0 +1,89 @@
+using System.Reflection.Metadata;
+
+namespace CSVImporter
+{
+    public class Importer
+    {
+        /// <summary>
+        /// Import CSV data to 2D List pole
+        /// </summary>
+        /// <param name="path">Path of CSV File</param>
+        /// <param name="separator">Separator between values</param>
+        /// <param name="skip">Skip first x rows (do not load)</param>
+        /// <returns></returns>
+        public static List<List<string>> ImportCSV(string path, string separator, int skip = 0)
+        {
+            List<List<string>> Collumns = new List<List<string>>(); //Initialize Lists Object
+            int RowsCount = 0; //Counting number of Rows
+
+            foreach (string row in File.ReadAllLines(path)) //Read Lines of CSV file
+            {
+                RowsCount++;    //Count Row
+
+                if (skip < RowsCount && row.Contains(separator) && row != "")   //test for skipping specified rows for skip or skip empty rows and if missing separator in row
+                {
+                    List<string> Collumn = row.Split(separator).ToList();    //Splitting CSV Line
+
+                    if (Collumns.Count < Collumn.Count)    //Test if sufficient number of collumns 
+                    {
+                        int collumnsRequest = Collumn.Count - Collumns.Count;  //Count missing collumns
+
+                        while (collumnsRequest > 0) //loop for add missing collumns
+                        {
+                            Collumns.Add(new List<string>(RowsCount - skip));   //Add collumn to collumns with specified number of elements
+                            collumnsRequest--;  //subtraction added collumn
+                        }
+                    }
+
+                    foreach (string data in Collumn)    //loop for moving data to position
+                    {
+                        Collumns[Collumn.IndexOf(data)].Add(data);  //Adding data to position
+                    }
+
+                    if (Collumns.Count > Collumn.Count) //test if new Row is not shorter when previous
+                    {
+                        int missingnumber = Collumns.Count - Collumn.Count; //count missing collumns
+
+                        while(missingnumber > 0)    //loop for adding empty strings to collumns in shorter row
+                        {
+                            Collumns[Collumn.Count + missingnumber].Add("");    //adding empty strings to collumns in shorter row
+                            missingnumber--;    //subtraction number of missing collumns data
+                        }
+                    }
+                }
+            }
+
+            return Collumns;    //return Imported Data
+        }
+
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+    }
+}
\ No newline at end of file