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SnapixLP | Tim G.
2025-05-19 09:16:34 +02:00
commit c214be937c
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Server/MySQL.cs Normal file
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using System;
using System.Collections.Generic;
using System.Data;
using DX86.Modules;
using MySql.Data.MySqlClient;
using Newtonsoft.Json;
namespace Server
{
public class MySQL
{
private MySqlConnection _connection;
private MessageSender ms;
public MySQL(string username, string password, string server, string database, MessageSender ms)
{
this.ms = ms;
ms.Log("[MySQL] Initializing connection...");
string connectionString = $"Server={server};Database={database};User ID={username};Password={password};";
_connection = new MySqlConnection(connectionString);
ms.Log("[MySQL] Connection to database...");
try
{
_connection.Open();
ms.Log("[MySQL] Connection established.");
}
catch (Exception ex)
{
ms.Error("[MySQL] Connection failed: " + ex.Message);
ms.Error("[MySQL] Please check your connection settings.");
ms.Error("[MySQL] Make sure the MySQL server is running and accessible.");
ms.Error("[MySQL] A MySQL Connection is necessary to run this application.");
ms.Error("[MySQL] Exiting...");
Environment.Exit(1);
}
}
private string JsonResponse(object data, bool error = false)
{
return JsonConvert.SerializeObject(new { error, data });
}
private string GetType(object value)
{
return value switch
{
int => "i",
float or double => "d",
string => "s",
_ => "b"
};
}
public string Insert(string table, Dictionary<string, object> data)
{
string columns = string.Join(", ", data.Keys);
string placeholders = string.Join(", ", new string[data.Count].Select(_ => "?"));
string sql = $"INSERT INTO `{table}` ({columns}) VALUES ({placeholders})";
using var cmd = new MySqlCommand(sql, _connection);
string types = "";
foreach (var value in data.Values)
{
types += GetType(value);
cmd.Parameters.AddWithValue(null, value);
}
try
{
cmd.ExecuteNonQuery();
long insertId = cmd.LastInsertedId;
return JsonResponse(new { insert_id = insertId });
}
catch (Exception ex)
{
return JsonResponse($"Execute failed: {ex.Message}", true);
}
}
public string Get(string table, Dictionary<string, object> parameters = null, int? limit = null, int? offset = null)
{
string sql = $"SELECT * FROM `{table}`";
string types = "";
var values = new List<object>();
if (parameters != null && parameters.Count > 0)
{
var conditions = new List<string>();
foreach (var param in parameters)
{
conditions.Add($"`{param.Key}` = ?");
types += GetType(param.Value);
values.Add(param.Value);
}
sql += " WHERE " + string.Join(" AND ", conditions);
}
if (limit.HasValue)
{
sql += " LIMIT ?";
types += "i";
values.Add(limit.Value);
if (offset.HasValue)
{
sql += " OFFSET ?";
types += "i";
values.Add(offset.Value);
}
}
using var cmd = new MySqlCommand(sql, _connection);
for (int i = 0; i < values.Count; i++)
{
cmd.Parameters.AddWithValue(null, values[i]);
}
try
{
using var reader = cmd.ExecuteReader();
var data = new List<Dictionary<string, object>>();
while (reader.Read())
{
var row = new Dictionary<string, object>();
for (int i = 0; i < reader.FieldCount; i++)
{
row[reader.GetName(i)] = reader.GetValue(i);
}
data.Add(row);
}
return JsonResponse(data);
}
catch (Exception ex)
{
return JsonResponse($"Execute failed: {ex.Message}", true);
}
}
public string Update(string table, Dictionary<string, object> data, Dictionary<string, object> where)
{
var setClauses = new List<string>();
var whereClauses = new List<string>();
string types = "";
var values = new List<object>();
foreach (var item in data)
{
setClauses.Add($"`{item.Key}` = ?");
types += GetType(item.Value);
values.Add(item.Value);
}
foreach (var condition in where)
{
whereClauses.Add($"`{condition.Key}` = ?");
types += GetType(condition.Value);
values.Add(condition.Value);
}
string sql = $"UPDATE `{table}` SET {string.Join(", ", setClauses)} WHERE {string.Join(" AND ", whereClauses)}";
using var cmd = new MySqlCommand(sql, _connection);
for (int i = 0; i < values.Count; i++)
{
cmd.Parameters.AddWithValue(null, values[i]);
}
try
{
int affectedRows = cmd.ExecuteNonQuery();
return JsonResponse(new { affected_rows = affectedRows });
}
catch (Exception ex)
{
return JsonResponse($"Execute failed: {ex.Message}", true);
}
}
public string Delete(string table, Dictionary<string, object> where)
{
var whereClauses = new List<string>();
string types = "";
var values = new List<object>();
foreach (var condition in where)
{
whereClauses.Add($"`{condition.Key}` = ?");
types += GetType(condition.Value);
values.Add(condition.Value);
}
string sql = $"DELETE FROM `{table}` WHERE {string.Join(" AND ", whereClauses)}";
using var cmd = new MySqlCommand(sql, _connection);
for (int i = 0; i < values.Count; i++)
{
cmd.Parameters.AddWithValue(null, values[i]);
}
try
{
int affectedRows = cmd.ExecuteNonQuery();
return JsonResponse(new { affected_rows = affectedRows });
}
catch (Exception ex)
{
return JsonResponse($"Execute failed: {ex.Message}", true);
}
}
public string Query(string sql, string types = null, List<object> values = null)
{
using var cmd = new MySqlCommand(sql, _connection);
if (types != null && values != null)
{
for (int i = 0; i < values.Count; i++)
{
cmd.Parameters.AddWithValue(null, values[i]);
}
}
try
{
using var reader = cmd.ExecuteReader();
var data = new List<Dictionary<string, object>>();
while (reader.Read())
{
var row = new Dictionary<string, object>();
for (int i = 0; i < reader.FieldCount; i++)
{
row[reader.GetName(i)] = reader.GetValue(i);
}
data.Add(row);
}
return JsonResponse(data);
}
catch (Exception ex)
{
return JsonResponse($"Query failed: {ex.Message}", true);
}
}
}
}