using System;
using System.Collections.Generic;
using System.IO;
using System.Text.RegularExpressions;
using System.Text;
//using MySql.Data.MySqlClient;

class Program
{
    static void Main(string[] args)
    {
        // Replace "path_to_your_file.txt" with the actual path to your text file
        string filePath = "C:\\Users\\Freri\\Desktop\\Placeables\\placeables.2da";

        try
        {
            string[] lines = File.ReadAllLines(filePath);

            if (lines.Length < 3)
            {
                Console.WriteLine("Invalid file format. File must contain at least 3 lines.");
                return;
            }

            // Extract column names and field lengths from the third line
            Dictionary<string, int> columnFieldLengths = ExtractColumnFieldLengths(lines[2]);

            // Create the CREATE TABLE command
            string createTableCommand = "CREATE TABLE IF NOT EXISTS Placables_2da (";
            createTableCommand += "Plcb_ID BIGINT(10), "; // First field

            foreach (var column in columnFieldLengths)
            {
                createTableCommand += $"{column.Key} VARCHAR({column.Value}), ";
            }

            createTableCommand = createTableCommand.TrimEnd(',', ' ') + ");";

            Console.WriteLine(createTableCommand);

            // Assuming you have a MySQL connection established
        /*    using (MySqlConnection connection = new MySqlConnection("YourConnectionString"))
            {
                connection.Open();

                // Create a MySqlCommand object
                MySqlCommand command = new MySqlCommand();

                // Set the connection for the command
                command.Connection = connection;

                // Execute the CREATE TABLE command
                command.CommandText = createTableCommand;
                command.ExecuteNonQuery();
        */
                // Populate the table with data
                for (int i = 3; i < lines.Length; i++)
                    {
                    string[] values = ParseLineValues(lines[i]);

                        // Prepare the INSERT statement
                    StringBuilder insertCommand = new StringBuilder($"INSERT INTO YourTableName (");

                    foreach (var column in columnFieldLengths)
                    {
                        insertCommand.Append($"{column.Key}, ");
                    }

                    insertCommand = insertCommand.Replace(", ", ") VALUES (", insertCommand.Length - 2, 2).Append(")");

                    for (int j = 0; j < values.Length; j++)
                    {
                        insertCommand.Append($"'{values[j]}', ");
                    }

                    insertCommand = insertCommand.Remove(insertCommand.Length - 2, 2).Append(";");

                //Console.Write(insertCommand);  //Debug - to print the insert statement
                //return; //Debug to stop the script after writing only a single line

                    // Execute the INSERT statement
                    /*command.CommandText = insertCommand.ToString();
                    command.ExecuteNonQuery();*/
                }
            //}
        }
        catch (Exception ex)
        {
            Console.WriteLine($"An error occurred: {ex.Message}");
        }
    }

    static Dictionary<string, int> ExtractColumnFieldLengths(string line)
    {
        // Use regular expression to extract column names and field lengths
        Dictionary<string, int> columnFieldLengths = new Dictionary<string, int>();
        Regex regex = new Regex(@"\b[A-Za-z]+\b");
        MatchCollection matches = regex.Matches(line);

        foreach (Match match in matches)
        {
            string columnName = match.Value;
            int fieldLength = match.NextMatch().Index - match.Index;
            if(match.NextMatch().Index == 0)
            {
                fieldLength = 11;
            }
            columnFieldLengths.Add(columnName, fieldLength);
        }

        return columnFieldLengths;
    }
    static string[] ParseLineValues(string line)
    {
        List<string> values = new List<string>();
        bool inQuotes = false;
        string currentVal = "";

        foreach (char c in line)
        {
            if (c == '"')
            {
                inQuotes = !inQuotes;
                currentVal += c; // Include the quote in the value
            }
            else if (c == ' ' && !inQuotes)
            {
                if (!string.IsNullOrEmpty(currentVal))
                {
                    values.Add(currentVal);
                    currentVal = "";
                }
            }
            else
            {
                currentVal += c;
            }
        }

        if (!string.IsNullOrEmpty(currentVal))
        {
            values.Add($"\"{currentVal}\""); // Add double quotes to the beginning and end of the value
        }

        return values.ToArray();
    }


}