using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Globalization;
using System.Windows;
using System.Windows.Controls;

namespace CryptoCalc
{
    public partial class MainWindow : Window
    {
        private readonly Random rand = new();

        private readonly DBInteraction<DBClasses> DB = new();
        private readonly DBInteraction<Transaction> transactionDB = new();
        private readonly DBInteraction<Wallet> walletDB = new();

        private readonly Transaction genericT = new();
        private readonly Wallet genericW = new();

        private List<Wallet> walletList = new();
        private Wallet selectedWallet = new();

        public MainWindow()
        {
            InitializeComponent();

            //Create the DB file if none exist
            DB.CreateDB();

            //Create tables in DB if none exist
            transactionDB.ExecuteQuery(genericT, genericT.CreateTable(genericW.DBTableName));
            walletDB.ExecuteQuery(genericW, genericW.CreateTable());
        }

        private void SaveRandomTransactionButton_Click(object sender, RoutedEventArgs e)
        {
            transactionDB.SaveData(DummyTransaction());
        }

        private void SaveRandomWalletButton_Click(object sender, RoutedEventArgs e)
        {
            walletDB.SaveData(DummyWallet());
        }

        private void SaveTransactionButton_Click(object sender, RoutedEventArgs e)
        {
            transactionDB.SaveData
                (
                new Transaction(
                    (DateTime)insertTransactionDatePicker.SelectedDate,
                    selectedWallet.Index,
                    inputCurrency.Text,
                    Convert.ToDecimal(inputAmount.Text, CultureInfo.InvariantCulture),
                    inputType.Text
                    )
                );
        }

        private void SaveWalletButton_Click(object sender, RoutedEventArgs e)
        {
            walletDB.SaveData(
                new Wallet(
                    (DateTime)inputWalletCreationDate.SelectedDate,
                    inputWalletPlatform.Text,
                    inputWalletName.Text,
                    inputWalletCurrency.Text,
                    inputWalletNote.Text
                    )
                );
        }

        private void PrintToConsoleButton_click(object sender, RoutedEventArgs e)
        {
            string query = $"select * from {genericT.DBTableName}";
            IEnumerable<Transaction> transactions = transactionDB.ReturnQuery(genericT, query);
            foreach (Transaction t in transactions)
            {
                Debug.WriteLine($"{DBClasses.GetLocalTimeFromUnixTime(t.UnixTime)} *** {t.Currency} - {Util.CombineDecimal(t.Amount, t.AmountDecimal)}");
            }
        }
        private void ShowTransactionsOfCurrencyButton_Click(object sender, RoutedEventArgs e)
        {
            string query = $"SELECT * from {genericT.DBTableName} WHERE {nameof(genericT.Currency)}=\'{currencyText.Text}\'";
            IEnumerable<Transaction> transactions = transactionDB.ReturnQuery(genericT, query);
            transactionsFoundListBox.Items.Clear();
            foreach (Transaction x in transactions)
            {
                transactionsFoundListBox.Items.Add(x.FullInfo);
            }
        }

        private void Show_Wallets_Click(object sender, RoutedEventArgs e)
        {
            selectedWallet = null;
            walletList.Clear();

            string query = $"SELECT * from {genericW.DBTableName}";
            IEnumerable<Wallet> wallets = walletDB.ReturnQuery(genericW, query);
            listBox_Wallets.Items.Clear();

            foreach (Wallet wallet in wallets)
            {
                walletList.Add(wallet);
                listBox_Wallets.Items.Add($"{wallet.Name}-{wallet.Currency}-{wallet.Balance}");
            }
        }

        private Transaction DummyTransaction()
        {
            Transaction t = new();
            t.WalletID = selectedWallet.Index;
            t.SaveUnixTimeNow();
            t.Currency = "SOL";
            (t.Amount, t.AmountDecimal) = Util.SplitDecimal(Convert.ToDecimal(30m * (decimal)rand.NextDouble()));
            t.TransactionType = "BUY";
            t.Platform = "Firi";
            t.Note = "Test";
            return t;
        }

        private Wallet DummyWallet()
        {
            Wallet w = new();
            w.SaveUnixTimeNow();
            w.UnixTimeCreated = DBClasses.GetUnixTime(new DateTime(rand.Next(2011, DateTime.Now.Year), rand.Next(1, 12), rand.Next(1, 28)));
            w.Platform = "Ledger";
            w.Name = "DefaultBTCWallet";
            w.Currency = "BTC";
            w.Balance = 0;//Convert.ToSingle(30 * rand.NextDouble());
            w.DefaultWallet = 1;
            w.Note = "Main BTC Wallet";
            return w;
        }


        private void InputAmount_LostFocus(object sender, RoutedEventArgs e)
        {
            //inputAmount.Text = inputAmount.Text.Replace(".", ",");
            inputAmount.Text = inputAmount.Text.Replace(",", ".");
        }

        private void CurrencyText_LostFocus(object sender, RoutedEventArgs e)
        {
            currencyText.Text = currencyText.Text.ToUpper();
        }

        private void InputCurrency_LostFocus(object sender, RoutedEventArgs e)
        {
            inputCurrency.Text = inputCurrency.Text.ToUpper();
        }


        private void ListBox_Wallets_SelectionChanged(object sender, System.Windows.Controls.SelectionChangedEventArgs e)
        {
            if (listBox_Wallets.Items.Count > 0)
            {
                if (listBox_Wallets.SelectedIndex < walletList.Count)
                {
                    selectedWallet = walletList[listBox_Wallets.SelectedIndex];

                    if (selectedWallet != null)
                    {
                        Debug.WriteLine($"{selectedWallet.Name} {selectedWallet.Balance}");
                    }
                }
            }
            else
            {
                Debug.WriteLine("No wallet selected yet");
            }
        }

    }
}