using System;
using System.Text;
using Ion.Storage;
using System.Data;
using Holo.Source;

namespace Holo.Managers
{
    /// <summary>
    /// Provides management for virtual sound machines and virtual songs.
    /// </summary>
    public static class soundMachineManager
    {
        /// <summary>
        /// Returns the string with all the soundsets in the Hand of a certain user.
        /// </summary>
        /// <param name="userID">The database ID of the user to get the soundsets of.</param>
        public static string getHandSoundsets(int userID)
        {
            using (DatabaseClient dbClient = (Eucalypt.dbManager.GetClient()))
            {
                DataTable table = dbClient.ReadDataTable("SELECT soundmachine_soundset FROM furniture WHERE ownerid = '" + userID + "' AND roomid = '0' AND soundmachine_soundset > 0 ORDER BY id ASC");
                StringBuilder Soundsets = new StringBuilder(Encoding.encodeVL64(table.Rows.Count));
                foreach (DataRow row in table.Rows)
                    Soundsets.Append(Encoding.encodeVL64(Convert.ToInt32(row[0])));

                return Soundsets.ToString();
            }
        }
        /// <summary>
        /// Returns the length of a song in seconds as an integer. The length is calculated by counting the notes on the four tracks, if an error occurs here, then -1 is returned as length.
        /// </summary>
        /// <param name="Data">The songdata. (all 4 tracks)</param>
        public static int calculateSongLength(string Data)
        {
            int songLength = 0;
            try
            {
                string[] Track = Data.Split(':');
                for (int i = 1; i < 8; i += 3)
                {
                    int trackLength = 0;
                    string[] Samples = Track[i].Split(';');
                    for (int j = 0; j < Samples.Length; j++)
                        trackLength += int.Parse(Samples[j].Substring(Samples[j].IndexOf(",") + 1));

                    if (trackLength > songLength)
                        songLength = trackLength;
                }
                return songLength;
            }
            catch { return -1; }
        }

        public static string getMachineSongList(int machineID)
        {
            using (DatabaseClient dbClient = (Eucalypt.dbManager.GetClient()))
            {
                FuseBuilder List = new FuseBuilder();
                DataTable table = dbClient.ReadDataTable("SELECT id,length,title,burnt FROM soundmachine_songs WHERE machineid = '" + machineID + "' ORDER BY id ASC");
                List.AppendWired(table.Rows.Count);
                foreach (DataRow row in table.Rows)
                {
                    List.AppendWired(row[0]);
                    List.AppendWired(row[1]);
                    List.AppendString(row[2]);
                    List.AppendWired(row[3]);
                }
                return List.ToString();
            }
        }
        public static string getMachinePlaylist(int machineID)
        {
            using (DatabaseClient dbClient = (Eucalypt.dbManager.GetClient()))
            {
                FuseBuilder List = new FuseBuilder();
                DataColumn column = dbClient.ReadDataColumn("SELECT songid FROM soundmachine_playlists WHERE machineid = '" + machineID + "' ORDER BY pos ASC");

                List.AppendWired(0);
                List.AppendWired(column.Table.Rows.Count);

                int i = 1;
                foreach (DataRow row in column.Table.Rows)
                {
                    List.AppendWired(row[0]);
                    List.AppendWired(i);

                    DataRow songrow = dbClient.ReadDataRow("SELECT userid,title FROM soundmachine_songs WHERE id = '" + row[0] + "'");

                    List.AppendString(songrow[1]);
                    List.AppendString(dbClient.ReadString("SELECT name FROM users WHERE id = '" + songrow[0] + "'"));
                    i++;
                }
                return List.ToString();
            }
        }
        public static string getSong(int songID)
        {
            using (DatabaseClient dbClient = (Eucalypt.dbManager.GetClient()))
            {
                DataRow row = dbClient.ReadDataRow("SELECT title,data FROM soundmachine_songs WHERE id = '" + songID + "'");
                if (row != null)
                {
                    FuseBuilder Song = new FuseBuilder();
                    Song.AppendWired(songID);
                    Song.AppendString(row[0]);
                    Song.AppendString(row[1]);

                    return Song.ToString();
                }
                else
                    return "holo.cast.soundmachine.song.unknown";
            }
        }
    }
}