Initial commit

lib/jav/dropParser.ts

@@ -0,0 +1,43 @@
+import { extractCode } from "./codeParser";
+
+export interface ParsedDropFilename {
+  /** Original filename with extension. */
+  original: string;
+  /** Canonical "PREFIX-NUMBER" code, or null. */
+  code: string | null;
+  /** Actress display names parsed from filename (after the first " - "). */
+  actresses: string[];
+  /** Suggested filename to save as (CODE.ext) when code is known; otherwise the original. */
+  targetFilename: string;
+}
+
+/**
+ * Parse a dropped image filename of the form:
+ *   "DDK-134.jpg"
+ *   "DDK-134 - Shuri Atomi.jpg"
+ *   "DDK-134 - Shuri Atomi, Reika Aiba.jpg"
+ *
+ * The first " - " (space-hyphen-space) after the code separates the code/title from
+ * the actress list. Multiple actresses are comma-separated.
+ */
+export function parseDroppedFilename(name: string): ParsedDropFilename {
+  const extMatch = name.match(/\.([^.]+)$/);
+  const ext = extMatch ? extMatch[1] : "";
+  const stem = ext ? name.slice(0, -(ext.length + 1)) : name;
+  const code = extractCode(name);
+
+  let actresses: string[] = [];
+  const sepIdx = stem.indexOf(" - ");
+  if (sepIdx !== -1) {
+    const tail = stem.slice(sepIdx + 3).trim();
+    if (tail) {
+      actresses = tail
+        .split(/\s*,\s*/)
+        .map((s) => s.trim())
+        .filter(Boolean);
+    }
+  }
+
+  const targetFilename = code ? (ext ? `${code}.${ext}` : code) : name;
+  return { original: name, code, actresses, targetFilename };
+}