Added command to generate a setting.txt from a serial number and region

modules/title/emunand.py

@@ -55,3 +55,61 @@ def handle_emunand_title(args):
         emunand.uninstall_title(target_tid)
 
         print("Title uninstalled from EmuNAND!")
+
+
+def handle_emunand_gensetting(args):
+    # Validate the provided SN. It should be 2 or 3 letters followed by 9 numbers.
+    if len(args.serno) != 11 and len(args.serno) != 12:
+        raise ValueError("The provided Serial Number is not valid!")
+    try:
+        int(args.serno[-9:])
+    except ValueError:
+        raise ValueError("The provided Serial Number is not valid!")
+    prefix = args.serno[:-9]
+    # Detect the console revision based on the SN.
+    match prefix[0].upper():
+        case "L":
+            revision = "RVL-001"
+        case "K":
+            revision = "RVL-101"
+        case "H":
+            revision = "RVL-201"
+        case _:
+            revision = "RVL-001"
+    # Validate the region, and then validate the SN based on the region. USA has a two-letter prefix for a total length
+    # of 11 characters, while other regions have a three-letter prefix for a total length of 12 characters.
+    valid_regions = ["USA", "EUR", "JPN", "KOR"]
+    if args.region not in valid_regions:
+        raise ValueError("The provided region is not valid!")
+    if len(prefix) == 2 and args.region != "USA":
+        raise ValueError("The provided region does not match the provided Serial Number!")
+    elif len(prefix) == 3 and args.region == "USA":
+        raise ValueError("The provided region does not match the provided Serial Number!")
+    # Get the values for VIDEO and GAME.
+    video = ""
+    game = ""
+    match args.region:
+        case "USA":
+            video = "NTSC"
+            game = "US"
+        case "EUR":
+            video = "PAL"
+            game = "EU"
+        case "JPN":
+            video = "NTSC"
+            game = "JP"
+        case "KOR":
+            video = "NTSC"
+            game = "KR"
+    # Create a new SettingTxt object and load the settings into it.
+    setting = libWiiPy.nand.SettingTxt()
+    setting.area = args.region
+    setting.model = f"{revision}({args.region})"
+    setting.dvd = 0
+    setting.mpch = "0x7FFE"
+    setting.code = prefix
+    setting.serial_number = args.serno[-9:]
+    setting.video = video
+    setting.game = game
+    # Write out the setting.txt file.
+    open("setting.txt", "wb").write(setting.dump())

wiipy.py

@@ -71,6 +71,15 @@ if __name__ == "__main__":
                                                   "accepts a WAD file to read the TID from)")
     emunand_title_parser.add_argument("-s", "--skip-hash", help="skips validating the hashes of decrypted "
                                       "content (install only)", action="store_true")
+    # Setting generation EmuNAND command.
+    emunand_gensetting_parser = emunand_subparsers.add_parser("gen-setting",
+                                                              help="generate a new setting.txt based on the provided values",
+                                                              description="generate a new setting.txt based on the provided values")
+    emunand_gensetting_parser.set_defaults(func=handle_emunand_gensetting)
+    emunand_gensetting_parser.add_argument("serno", metavar="SERNO", type=str,
+                                           help="serial number of the console these settings are for")
+    emunand_gensetting_parser.add_argument("region", metavar="REGION", type=str,
+                                           help="region of the console these settings are for (USA, EUR, JPN, or KOR)")
 
     # Argument parser for the fakesign subcommand.
     fakesign_parser = subparsers.add_parser("fakesign", help="fakesign a TMD, Ticket, or WAD (trucha bug)",