public void ImportEntriesFromCsvIntoList(ContactBookLogic contactbooklogic, string csvFileName, SQLConnection sql)
{
int csvLoop = 1;
var csvFilePath = $@"C:\Users\nwolff\Desktop\git\contactbook\CsvFiles\{csvFileName}.csv";
//TODOL: Importing CSV-File from: {csvFilePath}
using (StreamReader sr = new StreamReader(csvFilePath))
{
string csvLine;
sr.ReadLine();
while ((csvLine = sr.ReadLine()) != null)
{
++csvLoop;
var a = csvLine.Split(','); // turns csvLine into SplitStringArray
a = a.Where(x => !string.IsNullOrEmpty(x)).ToArray();
//CSV CONTACT
if (a.Length == 6)
{
ReadAndAddContactFromCsvLine(csvLine, sql);
}
//CSV LOCATION
else if (a.Length == 2)
{
ReadAndAddLocationFromCsvFile(csvLine, sql);
}
// TODOL: else message Invalid Entry on line {csvLoop} : {csvLine}");
}
}
}
//TODO: confirmation messages etc. (maybe use events, tuples with boolean return value or premethods which check input)
//ADD CONTACT METHOD
public bool AddContact(ContactBookLogic contactbooklogic, SQLConnection sql, long countLocations, string name, Location location, long phoneNumber, string mailAddress, string gender)
{
int LocationID = (int)sql.GetLocationID(location);
Contact contact = new Contact
{
Name = name,
LocationID = LocationID,
PhoneNumber = phoneNumber,
MailAddress = mailAddress,
Gender = gender
};
List <Contact> contactslist = sql.OutputContactTableToList();
var conIsDupe = false;
foreach (var con1 in contactslist)
{
if ((contact.Name == con1.Name) && (contact.LocationID == con1.LocationID) && (contact.PhoneNumber == con1.PhoneNumber) && (contact.MailAddress == con1.MailAddress) && (contact.Gender == con1.Gender))
{
conIsDupe = true;
}
}
if (!conIsDupe)
{
var CommandText = $"INSERT INTO contacts(Name, LocationID, PhoneNumber, MailAddress, Gender) VALUES('{contact.Name}', '{LocationID}', '{contact.PhoneNumber}', '{contact.MailAddress}', '{contact.Gender}');";
sql.ExecuteNonQuery(CommandText);
}
return(conIsDupe);
}
//---------------------------------------ADD OR GET LOCATION-----------------------------------------------------------------------
public Location AddOrGetLocation(ContactBookLogic contactbooklogic, SQLConnection sql, long countLocations, string address, string cityName)
{
Location location = new Location()
{
Address = address,
CityName = cityName,
};
List <Location> locationslist = sql.OutputLocationTableToList();
var locIsDupe = false;
var CommandText = "";
foreach (var loc1 in locationslist)
{
if ((location.Address == loc1.Address) && (location.CityName == loc1.CityName))
{
locIsDupe = true;
}
}
if (!locIsDupe)
{
CommandText = $"INSERT INTO locations(Address, CityName) VALUES ('{location.Address}', '{location.CityName}')";
sql.ExecuteNonQuery(CommandText);
//TODOL: info ob location geaddet oder dupe war und nicht geaddet
}
return(location);
}
//----------------------------------------REMOVE METHOD------------------------------------------------------------------------------
public void RemoveContact(ContactBookLogic contactbooklogic, long countContact, SQLConnection sql, int value)
{
var CommandText = $"DELETE FROM contacts WHERE ContactID = '{value}';";
sql.ExecuteNonQuery(CommandText);
//TODOL: contact successfully deleted message + invalid input message
}
public void RemoveLocation(ContactBookLogic contactbooklogic, long countLocation, SQLConnection sql, int value)
{
var CommandText = $"SELECT COUNT(l.LocationID) FROM locations l, contacts c WHERE {value} = c.LocationID AND {value} = l.LocationID;"; // check ob locationID von der zu löschenden location in contacts vorhanden ist - wenn ja -> nicht löschen
long count = sql.ExecuteScalar(CommandText);
CommandText = $"SELECT * FROM locations WHERE LocationID = {value}";
long c = sql.ExecuteScalar(CommandText);
if (count == 0 && c > 0)
{
CommandText = $"DELETE FROM locations WHERE LocationID = {value};";
sql.ExecuteNonQuery(CommandText);
//TODOL: location successfully deleted message
}
//TODOL: all messages for : alternatives else 1. no location with index value found 2. you can not delete location that is associated to a contact 3. invalid input
}
