using System;
using System.Linq;
using System.Windows.Forms;
using PKHeX.Core;

namespace PKHeX.WinForms;

public partial class SAV_SimpleTrainer : Form
{
    private readonly SaveFile Origin;
    private readonly SaveFile SAV;

    public SAV_SimpleTrainer(SaveFile sav)
    {
        InitializeComponent();
        WinFormsUtil.TranslateInterface(this, Main.CurrentLanguage);
        SAV = (Origin = sav).Clone();
        Loading = true;

        cba = new[] { CHK_1, CHK_2, CHK_3, CHK_4, CHK_5, CHK_6, CHK_7, CHK_8 };
        TB_OTName.MaxLength = SAV.MaxStringLengthOT;
        B_MaxCash.Click += (sender, e) => MT_Money.Text = SAV.MaxMoney.ToString();
        B_MaxCoins.Click += (sender, e) => MT_Coins.Text = SAV.MaxCoins.ToString();
        MT_Money.Mask = "".PadRight((int)Math.Floor(Math.Log10(SAV.MaxMoney) + 1), '0');
        MT_Coins.Mask = "".PadRight((int)Math.Floor(Math.Log10(SAV.MaxCoins) + 1), '0');

        CB_Gender.Items.Clear();
        CB_Gender.Items.AddRange(Main.GenderSymbols.Take(2).ToArray()); // m/f depending on unicode selection

        L_SID.Visible = MT_SID.Visible = SAV.Generation > 2;
        L_Coins.Visible = B_MaxCoins.Visible = MT_Coins.Visible = SAV.Generation < 3;
        CB_Gender.Visible = SAV.Generation > 1;
        L_Country.Visible = L_Region.Visible = CB_Country.Visible = CB_Region.Visible = SAV.Generation > 3;
        CB_Country.InitializeBinding();
        CB_Region.InitializeBinding();

        L_PikaFriend.Visible = MT_PikaFriend.Visible = L_PikaBeach.Visible = MT_PikaBeach.Visible = SAV.Generation == 1;

        TB_OTName.Text = SAV.OT;
        CB_Gender.SelectedIndex = SAV.Gender;
        MT_TID.Text = SAV.TID16.ToString("00000");
        MT_SID.Text = SAV.SID16.ToString("00000");
        MT_Money.Text = SAV.Money.ToString();
        MT_Hours.Text = SAV.PlayedHours.ToString();
        MT_Minutes.Text = SAV.PlayedMinutes.ToString();
        MT_Seconds.Text = SAV.PlayedSeconds.ToString();

        int badgeval = 0;
        if (SAV is SAV1 sav1)
        {
            MT_Coins.Text = sav1.Coin.ToString();
            badgeval = sav1.Badges;

            L_Started.Visible = L_Fame.Visible = false;
            CAL_AdventureStartDate.Visible = CAL_HoFDate.Visible = false;
            CAL_AdventureStartTime.Visible = CAL_HoFTime.Visible = false;
            GB_Map.Visible = false;
            GB_Options.Visible = true;
            CB_BattleStyle.Items.AddRange(new[] { "Switch", "Set" });
            CB_SoundType.Items.AddRange(new[] { "Mono", "Stereo", "Left", "Right" });
            CB_TextSpeed.Items.AddRange(new[] { "0 (Instant)", "1 (Fast)", "2", "3 (Normal)", "4", "5 (Slow)", "6", "7" });

            CHK_BattleEffects.Checked = sav1.BattleEffects;
            CB_BattleStyle.SelectedIndex = sav1.BattleStyleSwitch ? 0 : 1;
            CB_SoundType.SelectedIndex = sav1.Sound;
            CB_TextSpeed.SelectedIndex = sav1.TextSpeed;

            MT_PikaFriend.Text = sav1.PikaFriendship.ToString();
            MT_PikaBeach.Text = sav1.PikaBeachScore.ToString();
            if (!sav1.Version.Contains(GameVersion.YW))
            {
                L_PikaFriend.Visible = MT_PikaFriend.Visible = false;
                L_PikaBeach.Visible = MT_PikaBeach.Visible = false;
                CB_SoundType.Visible = LBL_SoundType.Visible = false;
            }
        }

        if (SAV is SAV2 sav2)
        {
            MT_Coins.Text = sav2.Coin.ToString();

            L_Started.Visible = L_Fame.Visible = false;
            CAL_AdventureStartDate.Visible = CAL_HoFDate.Visible = false;
            CAL_AdventureStartTime.Visible = CAL_HoFTime.Visible = false;
            GB_Map.Visible = false;
            GB_Options.Visible = true;
            CB_BattleStyle.Items.AddRange(new[] { "Switch", "Set" });
            CB_SoundType.Items.AddRange(new[] { "Mono", "Stereo" });
            CB_TextSpeed.Items.AddRange(new[] { "0 (Instant)", "1 (Fast)", "2", "3 (Normal)", "4", "5 (Slow)", "6", "7" });

            CHK_BattleEffects.Checked = sav2.BattleEffects;
            CB_BattleStyle.SelectedIndex = sav2.BattleStyleSwitch ? 0 : 1;
            CB_SoundType.SelectedIndex = sav2.Sound > 0 ? 1 : 0;
            CB_TextSpeed.SelectedIndex = sav2.TextSpeed;
            badgeval = sav2.Badges;
            cba = new[] { CHK_1, CHK_2, CHK_3, CHK_4, CHK_6, CHK_5, CHK_7, CHK_8, CHK_H1, CHK_H2, CHK_H3, CHK_H4, CHK_H5, CHK_H6, CHK_H7, CHK_H8 };
        }

        if (SAV is SAV3 sav3)
        {
            GB_Map.Visible = false;
            badgeval = sav3.Badges;

            L_Started.Visible = L_Fame.Visible = false;
            CAL_AdventureStartDate.Visible = CAL_HoFDate.Visible = false;
            CAL_AdventureStartTime.Visible = CAL_HoFTime.Visible = false;
        }
        if (SAV is SAV3Colosseum or SAV3XD)
        {
            GB_Map.Visible = false;
            GB_Badges.Visible = false;
            L_Started.Visible = L_Fame.Visible = false;
            CAL_AdventureStartDate.Visible = CAL_HoFDate.Visible = false;
            CAL_AdventureStartTime.Visible = CAL_HoFTime.Visible = false;
            GB_Adventure.Visible = false;
            return;
        }

        if (SAV is SAV4 sav4)
        {
            NUD_M.Value = sav4.M;
            NUD_X.Value = sav4.X;
            NUD_Z.Value = sav4.Z;
            NUD_Y.Value = sav4.Y;

            badgeval = sav4.Badges;
            if (sav4 is SAV4HGSS hgss)
            {
                badgeval |= hgss.Badges16 << 8;
                cba = cba.Concat(new[] { CHK_H1, CHK_H2, CHK_H3, CHK_H4, CHK_H5, CHK_H6, CHK_H7, CHK_H8 }).ToArray();
            }

            Main.SetCountrySubRegion(CB_Country, "gen4_countries");
            CB_Country.SelectedValue = sav4.Country;
            CB_Region.SelectedValue = sav4.Region;
        }
        else if (SAV is SAV5 s)
        {
            foreach (var control in new Control[] { L_Coins, B_MaxCoins, MT_Coins })
            {
                var pos = control.Location;
                GB_Badges.Controls.Add(control);
                control.Location = pos;
                control.Visible = true;
            }
            L_Coins.Text = "BP"; // no translation boo
            MT_Coins.Text = s.BattleSubway.BP.ToString();

            var pd = s.PlayerData;
            NUD_M.Value = pd.M;
            NUD_X.Value = pd.X;
            NUD_Z.Value = pd.Z;
            NUD_Y.Value = pd.Y;
            badgeval = s.Misc.Badges;

            Main.SetCountrySubRegion(CB_Country, "gen5_countries");
            CB_Country.SelectedValue = s.Country;
            CB_Region.SelectedValue = s.Region;
        }

        for (int i = 0; i < cba.Length; i++)
        {
            cba[i].Visible = true;
            cba[i].Checked = (badgeval & (1 << i)) != 0;
        }

        DateUtil.GetDateTime2000(SAV.SecondsToStart, out var date, out var time);
        CAL_AdventureStartDate.Value = date;
        CAL_AdventureStartTime.Value = time;

        DateUtil.GetDateTime2000(SAV.SecondsToFame, out date, out time);
        CAL_HoFDate.Value = date;
        CAL_HoFTime.Value = time;

        Loading = false;
    }

    private readonly CheckBox[] cba;
    private readonly bool Loading;
    private bool MapUpdated;

    private void ChangeFFFF(object sender, EventArgs e)
    {
        MaskedTextBox box = (MaskedTextBox)sender;
        if (box.Text.Length == 0) box.Text = "0";
        if (Util.ToInt32(box.Text) > 65535) box.Text = "65535";
    }

    private void Change255(object sender, EventArgs e)
    {
        MaskedTextBox box = (MaskedTextBox)sender;
        if (box.Text.Length == 0) box.Text = "0";
        if (Util.ToInt32(box.Text) > byte.MaxValue) box.Text = "255";
    }

    private void B_Save_Click(object sender, EventArgs e)
    {
        if (SAV.OT != TB_OTName.Text) // only modify if changed (preserve trash bytes?)
            SAV.OT = TB_OTName.Text;
        SAV.Gender = (byte)CB_Gender.SelectedIndex;

        SAV.TID16 = (ushort)Util.ToUInt32(MT_TID.Text);
        SAV.SID16 = (ushort)Util.ToUInt32(MT_SID.Text);
        SAV.Money = Util.ToUInt32(MT_Money.Text);

        SAV.PlayedHours = ushort.Parse(MT_Hours.Text);
        SAV.PlayedMinutes = ushort.Parse(MT_Minutes.Text) % 60;
        SAV.PlayedSeconds = ushort.Parse(MT_Seconds.Text) % 60;

        // Copy Badges
        int badgeval = 0;
        for (int i = 0; i < cba.Length; i++)
            badgeval |= (cba[i].Checked ? 1 : 0) << i;

        if (SAV is SAV1 sav1)
        {
            sav1.Coin = (ushort)Math.Min(Util.ToUInt32(MT_Coins.Text), SAV.MaxCoins);
            sav1.Badges = badgeval & 0xFF;
            sav1.PikaFriendship = (byte)Math.Min(255, Util.ToUInt32(MT_PikaFriend.Text));
            sav1.PikaBeachScore = (ushort)Math.Min(9999, Util.ToUInt32(MT_PikaBeach.Text));
            sav1.BattleEffects = CHK_BattleEffects.Checked;
            sav1.BattleStyleSwitch = CB_BattleStyle.SelectedIndex == 0;
            sav1.Sound = CB_SoundType.SelectedIndex;
            sav1.TextSpeed = CB_TextSpeed.SelectedIndex;
        }

        if (SAV is SAV2 sav2)
        {
            sav2.Coin = (ushort)Math.Min(Util.ToUInt32(MT_Coins.Text), SAV.MaxCoins);
            sav2.Badges = badgeval & 0xFFFF;

            sav2.BattleEffects = CHK_BattleEffects.Checked;
            sav2.BattleStyleSwitch = CB_BattleStyle.SelectedIndex == 0;
            sav2.Sound = CB_SoundType.SelectedIndex > 0 ? 2 : 0;
            sav2.TextSpeed = CB_TextSpeed.SelectedIndex;
        }

        if (SAV is SAV3 sav3)
        {
            sav3.Badges = badgeval & 0xFF;
        }

        if (SAV is SAV4 sav4)
        {
            if (MapUpdated)
            {
                sav4.M = (int)NUD_M.Value;
                sav4.X = (int)NUD_X.Value;
                sav4.Z = (int)NUD_Z.Value;
                sav4.Y = (int)NUD_Y.Value;
            }
            sav4.Badges = badgeval & 0xFF;
            if (sav4 is SAV4HGSS hgss)
            {
                hgss.Badges16 = badgeval >> 8;
            }
            sav4.Country = WinFormsUtil.GetIndex(CB_Country);
            sav4.Region = WinFormsUtil.GetIndex(CB_Region);
        }
        else if (SAV is SAV5 s)
        {
            if (MapUpdated)
            {
                var pd = s.PlayerData;
                pd.M = (int)NUD_M.Value;
                pd.X = (int)NUD_X.Value;
                pd.Z = (int)NUD_Z.Value;
                pd.Y = (int)NUD_Y.Value;
            }
            s.Misc.Badges = badgeval & 0xFF;
            s.BattleSubway.BP = (ushort)Math.Min(Util.ToUInt32(MT_Coins.Text), SAV.MaxCoins);
            s.Country = WinFormsUtil.GetIndex(CB_Country);
            s.Region = WinFormsUtil.GetIndex(CB_Region);
        }

        SAV.SecondsToStart = (uint)DateUtil.GetSecondsFrom2000(CAL_AdventureStartDate.Value, CAL_AdventureStartTime.Value);
        SAV.SecondsToFame = (uint)DateUtil.GetSecondsFrom2000(CAL_HoFDate.Value, CAL_HoFTime.Value);

        Origin.CopyChangesFrom(SAV);
        Close();
    }

    private void B_Cancel_Click(object sender, EventArgs e)
    {
        Close();
    }

    private void ChangeMapValue(object sender, EventArgs e)
    {
        if (!Loading)
            MapUpdated = true;
    }

    private void UpdateCountry(object sender, EventArgs e)
    {
        if (sender is ComboBox c)
        {
            int index = WinFormsUtil.GetIndex(c);
            if (SAV is SAV4)
            {
                Main.SetCountrySubRegion(CB_Region, $"gen4_sr_{index:000}");
                if (CB_Region.Items.Count == 0)
                    Main.SetCountrySubRegion(CB_Region, "gen4_sr_default");
            }
            else if (SAV is SAV5)
            {
                Main.SetCountrySubRegion(CB_Region, $"gen5_sr_{index:000}");
                if (CB_Region.Items.Count == 0)
                    Main.SetCountrySubRegion(CB_Region, "gen5_sr_default");
            }
        }
    }
}