sdvx: add merge sdvx csv script

.gitignore

@@ -171,4 +171,5 @@ cython_debug/
 .ruff_cache/
 
 # PyPI configuration file
-.pypirc
+.pypirc
+.csv

README.md

@@ -1,2 +1,3 @@
+# more-tachi-import-scripts
 Some scripts to convert from various sources to Tachi/Kamaitachi "Batch Manual" import jsons.
 Use with caution as there may be some cases missing.

sdvx/eamuse_csv/README.md

@@ -0,0 +1,18 @@
+# e-amusement SDVX CSV to Tachi WARNING!!!
+The CSV provided by Konami doesn't contain any information regarding the date which you played/obtained a particular score. It only keeps your BEST score.
+
+This causes for duplicate imports if you use this script more than once
+
+## Solution
+The first time you import, run `sdvx_csv_to_tach.py` and import the output JSON file normally. Howver **KEEP THE OLD CSV FILE**
+
+The next time you play, export the CSV again but first run `eamuse_merge_csv.py --old <file> --new <file>`. Passing the old and new CSV files accordingly.
+
+This will check for differences between the 2 files and remove lines of the same value in the new file so that only newly obtained best scores are uploaded.
+
+# What if I want all plays?
+I don't think there's a method right now to automatically import arcade data into Tachi for each play. Play history is locked behind the eAmusement basic subscription plan.
+
+The best you can do is download the eAmusement app, subscribe the the basic course and manually make your own score CSV in the same format. Then run `sdvx_csv_to_tach.py`
+
+Alternatively, you can take pictures of each play result screen and build your own JSON so that there is even more info available!

sdvx/eamuse_csv/eamuse_merge_csv.py

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+import argparse
+import csv
+
+def merge_csv(old_file: str, new_file: str):
+    old_csv_set = set()
+    new_csv_set = set()
+    encoding = "utf-8"
+    with open(old_file, encoding=encoding) as old_csv:
+        reader = csv.reader(old_csv, delimiter=",")
+        [old_csv_set.add(tuple(row)) for row in reader]
+        with open(new_file, "r", encoding=encoding) as new_csv:
+            reader = csv.reader(new_csv, delimiter=",")
+            header = next(reader)
+            [new_csv_set.add(tuple(row)) for row in reader]
+            new_csv_set = new_csv_set - old_csv_set
+
+        with open(new_file, "w", encoding=encoding, newline="") as new_csv:
+            writer = csv.writer(new_csv, delimiter=",")
+            writer.writerow(header)
+            for row in new_csv_set:
+                if row == ():
+                    continue
+                writer.writerow(list(row))
+
+
+if __name__ == "__main__":
+    parser = argparse.ArgumentParser(
+        prog="eamuse_merge_to_csv",
+        description="Merges an old SDVX e-amuse CSV with a new one. Keeping only new scores in the new file",
+    )
+    parser.add_argument("--old", help="Old CSV file", required=True)
+    parser.add_argument("--new", help="New CSV file", required=True)
+    args = parser.parse_args()
+    merge_csv(args.old, args.new)