[ALL] Add Everdrive SMDB

SabreTools.Library/DatFiles/EverdriveSmdb.cs

@@ -0,0 +1,214 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+using SabreTools.Library.Data;
+using SabreTools.Library.DatItems;
+using SabreTools.Library.Tools;
+
+#if MONO
+using System.IO;
+#else
+using Alphaleonis.Win32.Filesystem;
+
+using FileStream = System.IO.FileStream;
+using StreamReader = System.IO.StreamReader;
+using StreamWriter = System.IO.StreamWriter;
+#endif
+using NaturalSort;
+
+namespace SabreTools.Library.DatFiles
+{
+    /// <summary>
+    /// Represents parsing and writing of an Everdrive SMDB file
+    /// </summary>
+    internal class EverdriveSMDB : DatFile
+    {
+        /// <summary>
+        /// Constructor designed for casting a base DatFile
+        /// </summary>
+        /// <param name="datFile">Parent DatFile to copy from</param>
+        public EverdriveSMDB(DatFile datFile)
+            : base(datFile, cloneHeader: false)
+        {
+        }
+
+        /// <summary>
+        /// Parse an Everdrive SMDB file and return all found games within
+        /// </summary>
+        /// <param name="filename">Name of the file to be parsed</param>
+        /// <param name="sysid">System ID for the DAT</param>
+        /// <param name="srcid">Source ID for the DAT</param>
+        /// <param name="keep">True if full pathnames are to be kept, false otherwise (default)</param>
+        /// <param name="clean">True if game names are sanitized, false otherwise (default)</param>
+        /// <param name="remUnicode">True if we should remove non-ASCII characters from output, false otherwise (default)</param>
+        public override void ParseFile(
+            // Standard Dat parsing
+            string filename,
+            int sysid,
+            int srcid,
+
+            // Miscellaneous
+            bool keep,
+            bool clean,
+            bool remUnicode)
+        {
+            // Open a file reader
+            Encoding enc = Utilities.GetEncoding(filename);
+            StreamReader sr = new StreamReader(Utilities.TryOpenRead(filename), enc);
+
+            while (!sr.EndOfStream)
+            {
+                string line = sr.ReadLine();
+
+                /*
+                The gameinfo order is as follows
+                0 - SHA-256
+                1 - Machine Name/Filename
+                2 - SHA-1
+                3 - MD5
+                4 - CRC32
+                */
+
+                string[] gameinfo = line.Split('\t');
+                string[] fullname = gameinfo[1].Split('/');
+
+                Rom rom = new Rom
+                {
+                    Name = gameinfo[1].Substring(fullname.Length + 1),
+                    Size = Constants.SizeZero,
+                    CRC = gameinfo[4].PadLeft(8, '0'),
+                    MD5 = gameinfo[3].PadLeft(32, '0'),
+                    SHA1 = gameinfo[2].PadLeft(40, '0'),
+                    SHA256 = gameinfo[0].PadLeft(64, '0'),
+                    ItemStatus = ItemStatus.None,
+
+                    MachineName = fullname[0],
+                    MachineDescription = fullname[0],
+                };
+
+                // Now process and add the rom
+                ParseAddHelper(rom, clean, remUnicode);
+            }
+
+            sr.Dispose();
+        }
+
+        /// <summary>
+        /// Create and open an output file for writing direct from a dictionary
+        /// </summary>
+        /// <param name="outfile">Name of the file to write to</param>
+        /// <param name="ignoreblanks">True if blank roms should be skipped on output, false otherwise (default)</param>
+        /// <returns>True if the DAT was written correctly, false otherwise</returns>
+        public override bool WriteToFile(string outfile, bool ignoreblanks = false)
+        {
+            try
+            {
+                Globals.Logger.User("Opening file for writing: {0}", outfile);
+                FileStream fs = Utilities.TryCreate(outfile);
+
+                // If we get back null for some reason, just log and return
+                if (fs == null)
+                {
+                    Globals.Logger.Warning("File '{0}' could not be created for writing! Please check to see if the file is writable", outfile);
+                    return false;
+                }
+
+                StreamWriter sw = new StreamWriter(fs, new UTF8Encoding(false));
+
+                // Get a properly sorted set of keys
+                List<string> keys = Keys;
+                keys.Sort(new NaturalComparer());
+
+                foreach (string key in keys)
+                {
+                    List<DatItem> roms = this[key];
+
+                    // Resolve the names in the block
+                    roms = DatItem.ResolveNames(roms);
+
+                    for (int index = 0; index < roms.Count; index++)
+                    {
+                        DatItem item = roms[index];
+
+                        // There are apparently times when a null rom can skip by, skip them
+                        if (item.Name == null || item.MachineName == null)
+                        {
+                            Globals.Logger.Warning("Null rom found!");
+                            continue;
+                        }
+
+                        // If we have a "null" game (created by DATFromDir or something similar), log it to file
+                        if (item.ItemType == ItemType.Rom
+                            && ((Rom)item).Size == -1
+                            && ((Rom)item).CRC == "null")
+                        {
+                            Globals.Logger.Verbose("Empty folder found: {0}", item.MachineName);
+
+                            item.Name = (item.Name == "null" ? "-" : item.Name);
+                            ((Rom)item).Size = Constants.SizeZero;
+                        }
+
+                        WriteDatItem(sw, item, ignoreblanks);
+                    }
+                }
+
+                Globals.Logger.Verbose("File written!" + Environment.NewLine);
+                sw.Dispose();
+                fs.Dispose();
+            }
+            catch (Exception ex)
+            {
+                Globals.Logger.Error(ex.ToString());
+                return false;
+            }
+
+            return true;
+        }
+
+        /// <summary>
+        /// Write out Game start using the supplied StreamWriter
+        /// </summary>
+        /// <param name="sw">StreamWriter to output to</param>
+        /// <param name="rom">DatItem object to be output</param>
+        /// <returns>True if the data was written, false on error</returns>
+        private bool WriteDatItem(StreamWriter sw, DatItem rom, bool ignoreblanks = false)
+        {
+            // If we are in ignore blanks mode AND we have a blank (0-size) rom, skip
+            if (ignoreblanks
+                && (rom.ItemType == ItemType.Rom
+                && (((Rom)rom).Size == 0 || ((Rom)rom).Size == -1)))
+            {
+                return true;
+            }
+
+            try
+            {
+                // No game should start with a path separator
+                if (rom.MachineName.StartsWith(Path.DirectorySeparatorChar.ToString()))
+                    rom.MachineName = rom.MachineName.Substring(1);
+
+                // If the DatItem isn't a rom, we don't output it
+                if (rom.ItemType != ItemType.Rom)
+                    return true;
+
+                Rom temp = rom as Rom;
+                string state = (!ExcludeFields[(int)Field.SHA256] ? temp.SHA256 : "") + "\t"
+                            + (!ExcludeFields[(int)Field.MachineName] ? temp.MachineName + "/" : "")
+                            + temp.Name + "\t"
+                            + (!ExcludeFields[(int)Field.SHA1] ? temp.SHA1 : "") + "\t"
+                            + (!ExcludeFields[(int)Field.MD5] ? temp.MD5 : "") + "\t"
+                            + (!ExcludeFields[(int)Field.CRC] ? temp.CRC : "") + "\n";
+
+                sw.Write(state);
+                sw.Flush();
+            }
+            catch (Exception ex)
+            {
+                Globals.Logger.Error(ex.ToString());
+                return false;
+            }
+
+            return true;
+        }
+    }
+}