using System;
using System.Drawing;
using System.Windows.Forms;
using PKHeX.Drawing;
using PKHeX.WinForms.Properties;

namespace PKHeX.WinForms.Controls;

public partial class ShinyLeaf : UserControl
{
    public ShinyLeaf()
    {
        InitializeComponent();
        Flags = new[] { CHK_1, CHK_2, CHK_3, CHK_4, CHK_5, CHK_C };
    }

    private readonly CheckBox[] Flags;

    private const byte CrownAndFiveLeafs = 0b00_1_11111;
    public void CheckAll(bool all = true) => SetValue(all ? CrownAndFiveLeafs : 0);

    public int GetValue()
    {
        int value = 0;
        for (int i = 0; i < Flags.Length; i++)
        {
            if (Flags[i].Checked)
                value |= 1 << i;
        }
        return value;
    }

    public void SetValue(int value)
    {
        for (int i = 0; i < Flags.Length; i++)
            Flags[i].Checked = ((value >> i) & 1) == 1;
    }

    private void UpdateFlagState(object sender, EventArgs e)
    {
        if (sender is not CheckBox c)
            return;

        Image resource;
        if (CHK_C == c)
        {
            resource = Resources.crown;
        }
        else
        {
            resource = Resources.leaf;
            if (!c.Checked)
                CHK_C.Checked = CHK_C.Enabled = false;
            else if (HasAllFiveLeafs())
                CHK_C.Enabled = true;
        }
        if (!c.Checked)
            resource = ImageUtil.ChangeOpacity(resource, 0.4);
        c.Image = resource;
    }

    private bool HasAllFiveLeafs()
    {
        for (int i = 0; i < 5; i++)
        {
            if (!Flags[i].Checked)
                return false;
        }
        return true;
    }
}