using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using CDSAE3_Lian_Lian_Kan.Forms.Interface;

namespace CDSAE3_Lian_Lian_Kan.Forms
{
    public partial class Setting : Form, IThemeChangeable
    {
        private readonly List<string> _albums;
        private readonly List<string> _themes;
        TextBox[] textBoxes;
        public Setting()
        {
            InitializeComponent();
            SetStyle(ControlStyles.UserPaint | ControlStyles.AllPaintingInWmPaint | ControlStyles.OptimizedDoubleBuffer | ControlStyles.ResizeRedraw | ControlStyles.SupportsTransparentBackColor, true);
            textBoxes = [cusWidth, cusHeight, time, songVolumeText, soundScapeVolumeText];
            _albums = Etcs.musics.Keys.ToList();
            albumSelector.Items.AddRange(_albums.ToArray());
            _themes = Etcs.themes.Keys.ToList();
            themeSelector.Items.AddRange(_themes.ToArray());
            themeSelector.SelectedItem = "Fruit";
            SetTheme();
        }
        public void SetTheme()
        {
            Etcs.ThemeInfo themeInfo = Etcs.currentThemeInfo;
            BackColor = Color.FromArgb(themeInfo.ThemeColor![0], themeInfo.ThemeColor[1], themeInfo.ThemeColor[2]);
            foreach (var item in textBoxes)
            {
                contextPanel.BackColor = BackColor;
                item.BackColor = BackColor;
            }
        }
        bool is_pause = false;
        public void Resume()
        {
            is_pause = false;
            psButton.Image = Properties.Resources.pause;
            Etcs.song_Audio_Processer.resume_song();
        }
        public void Pause()
        {
            is_pause = true;
            psButton.Image = Properties.Resources.play_buttton;
            Etcs.song_Audio_Processer.pause_song();
        }
        private void psButton_Click(object sender, EventArgs e)
        {
            if (is_pause)
                Resume();
            else
                Pause();
        }

        private void lastSong_Click(object sender, EventArgs e)
        {
            Etcs.song_Audio_Processer.set_song(Etcs.song_Audio_Processer.get_last_song());
        }

        private void nextSong_Click(object sender, EventArgs e)
        {
            Etcs.song_Audio_Processer.set_song(Etcs.song_Audio_Processer.get_next_song());
        }

        internal void SetSongInfo(string songName)
        {
            this.songName.Text = "歌曲：" + songName;
            Console.WriteLine(this.songName.Text);
        }

        internal void SetAlbum(string albumName)
        {
            if ((albumSelector.SelectedItem?.ToString() ?? "") != albumName)
            {
                albumSelector.SelectedItem = albumName;
            }
        }

        private void albumSelector_SelectedIndexChanged(object sender, EventArgs e)
        {
            var s = albumSelector.SelectedItem?.ToString();
            if (s != null)
            {
                Etcs.song_Audio_Processer.set_albums(s);
                Etcs.curAlbum = s;
            }
            nextSong_Click(this, new EventArgs());
        }

        private void musicVolume_Scroll(object? sender, EventArgs e)
        {
            Etcs.Song_Volume = musicVolume.Value;
            Etcs.song_Audio_Processer.volume_change(musicVolume.Value);
            if (sender != null)
                songVolumeText.Text = musicVolume.Value.ToString();
        }

        private void soundScapeVolume_Scroll(object? sender, EventArgs e)
        {
            Etcs.Info_Volume = soundScapeVolume.Value;
            if (sender != null)
                soundScapeVolumeText.Text = soundScapeVolume.Value.ToString();
        }

        private bool _canBack = true;
        private async void back_ClickAsync(object sender, EventArgs e)
        {
            CusSize_Validated(this, new EventArgs());
            if (_canBack)
                await Etcs.form!.change_form((Etcs.gameMenuForm as Form)!, false, null, null);
        }
        private void SetTimeText(int t) => time.Text = $"{t / 60}:{((t % 60) < 10 ? ("0" + (t % 60).ToString()) : (t % 60).ToString())}";
        private int CalcTime(int total) => (int)(Math.Ceiling((double)total / 50)) * 60;//50per minute 向上取整
        private int LimitedCalcTime(int total) => (int)((double)total / 90 * 60);//90per minute 不取整 极限值
        private void Difficulty_CheckedChanged(object sender, EventArgs e)
        {
            switch ((sender as RadioButton)!.Name)
            {
                case "easy":
                    Etcs.current_difficulty = Etcs.Difficulty.easy;
                    break;
                case "normal":
                    Etcs.current_difficulty = Etcs.Difficulty.normal;
                    break;
                case "hard":
                    Etcs.current_difficulty = Etcs.Difficulty.hard;
                    break;
                case "custom":
                    Etcs.current_difficulty = Etcs.Difficulty.custom;
                    break;
            }
            var (a, b) = Etcs.get_length_width();
            int ans = CalcTime(a * b);
            Etcs.left_time = ans;
            SetTimeText(ans);
        }
        private bool _cusDataChanged = false;
        private void cusWidth_TextChanged(object sender, EventArgs e)
        {
            if (int.TryParse(cusWidth.Text, out int a))
            {
                _cusDataChanged = true;
                Etcs.cus_width = a;
                custom.Checked = true;
                Difficulty_CheckedChanged(custom, e);
            }
            else
                cusWidth.Text = new string(cusWidth.Text.Where(x => char.IsDigit(x)).ToArray());
        }
        private void cusHeight_TextChanged(object sender, EventArgs e)
        {
            if (int.TryParse(cusHeight.Text, out int a))
            {
                _cusDataChanged = true;
                Etcs.cus_height = a;
                custom.Checked = true;
                Difficulty_CheckedChanged(custom, e);
            }
            else
                cusHeight.Text = new string(cusHeight.Text.Where(x => char.IsDigit(x)).ToArray());
        }
        private void CusSize_Validated(object sender, EventArgs e)
        {
            if (!_cusDataChanged)
                return;
            var (a, b) = Etcs.get_length_width();
            int total = a * b;
            if (Etcs.left_time < LimitedCalcTime(total))
            {
                int t = LimitedCalcTime(total);
                DialogResult result = MessageBox.Show($"你这个时间挺极限的，建议设置的时间不小于{t / 60}:{((t % 60) < 10 ? ("0" + (t % 60).ToString()) : (t % 60).ToString())} \n 确定退出吗？", "注意", MessageBoxButtons.OKCancel);
                if (result == DialogResult.Cancel || result == DialogResult.None)
                    _canBack = false;
            }
        }
        int lastTime = 0;
        private int getTime()
        {
            string s = time.Text;
            string[] strings = s.Split(":");
            return int.Parse(strings[0]) * 60 + int.Parse(strings[1]);
        }

        private void time_Enter(object sender, EventArgs e)
        {
            lastTime = getTime();
        }

        private void time_Validated(object sender, EventArgs e)
        {
            int newTime = 0;
            try
            {
                newTime = getTime();
            }
            catch (Exception)
            {
                MessageBox.Show(Text = "输入格式错误");
                SetTimeText(lastTime);
            }
            if (lastTime != newTime)
            {
                _cusDataChanged = true;
                Etcs.left_time = newTime;
            }
        }

        private void songVolumeText_TextChanged(object sender, EventArgs e)
        {
            if (int.TryParse(songVolumeText.Text, out int a))
            {
                if (a > 100)
                    a = 100;
                if (a < 0)
                    a = 0;
                songVolumeText.Text = a.ToString();
                if (sender != null)
                {
                    musicVolume.Value = a;
                    musicVolume_Scroll(null, e);
                }
            }
            else
                songVolumeText.Text = new string(songVolumeText.Text.Where(x => char.IsDigit(x)).ToArray());
        }

        private void soundScapeVolumeText_TextChanged(object sender, EventArgs e)
        {
            if (int.TryParse(soundScapeVolumeText.Text, out int a))
            {
                if (a > 100)
                    a = 100;
                if (a < 0)
                    a = 0;
                soundScapeVolumeText.Text = a.ToString();
                if (sender != null)
                {
                    soundScapeVolume.Value = a;
                    soundScapeVolume_Scroll(null, e);
                }
            }
            else
                soundScapeVolumeText.Text = new string(soundScapeVolumeText.Text.Where(x => char.IsDigit(x)).ToArray());
        }

        private void themeSelector_SelectedIndexChanged(object sender, EventArgs e)
        {
            var s = themeSelector.SelectedItem?.ToString();
            if (s == null || s.Length == 0)
                return;
            Etcs.currentThemeInfo = Etcs.themes[s!];
            SetTheme();
        }

        private void Algorithm_CheckedChanged(object sender, EventArgs e)
        {
            switch ((sender as RadioButton)!.Name)
            {
                case "ArrayAlgorithm":
                    Etcs.curAlgorithm = Etcs.Algorithm.Array;
                    break;
                case "GraphAlgorithm":
                    Etcs.curAlgorithm = Etcs.Algorithm.Graph;
                    break;
            }
        }

        private void button1_Click(object sender, EventArgs e)
        {
            _ = Etcs.form!.change_form(new CreateNewTheme(), false, null, null);
        }
    }
}