feat: filter figure parts (exclude shoes, waist, dedupe head)

- Default convertFigureString now excludes shoes (ha-), waist (wa-), and duplicate head
- Added ConvertFigureOptions to customize filtering
- Updated tests to reflect new defaults

src/lib/figure-convert.test.ts

@@ -43,12 +43,25 @@ describe("convertFigurePart", () => {
 });
 
 describe("convertFigureString", () => {
-	it("converts full figure string from old to new format", () => {
+	it("converts full figure string from old to new format (with defaults: exclude shoes, waist, dedupe head)", () => {
+		const oldFigure =
+			"hr-11782-40-40.hd-180-7-14.ch-11592-66.lg-10726-79-1408.sh-11764-1408.ha-11958-70-1408.wa-2007-0";
+		const newFigure = "hd-180-1.ch-255-66.lg-280-110.sh-305-62";
+		expect(convertFigureString(oldFigure)).toBe(newFigure);
+	});
+
+	it("includes all parts when options disabled", () => {
 		const oldFigure =
 			"hr-11782-40-40.hd-180-7-14.ch-11592-66.lg-10726-79-1408.sh-11764-1408.ha-11958-70-1408.wa-2007-0";
 		const newFigure =
 			"hd-180-1.hd-180-1.ch-255-66.lg-280-110.sh-305-62.ha-310-70.wa-200-0";
-		expect(convertFigureString(oldFigure)).toBe(newFigure);
+		expect(
+			convertFigureString(oldFigure, {
+				excludeShoes: false,
+				excludeWaist: false,
+				dedupeHead: false,
+			}),
+		).toBe(newFigure);
 	});
 
 	it("handles empty string", () => {
@@ -62,8 +75,15 @@ describe("convertFigureString", () => {
 });
 
 describe("getNewFormatFigure", () => {
-	it("converts figure using getNewFormatFigure", () => {
+	it("converts figure using getNewFormatFigure with defaults", () => {
 		const oldFigure = "hr-11782-40-40.hd-180-7-14.ch-11592-66";
-		expect(getNewFormatFigure(oldFigure)).toBe("hd-180-1.hd-180-1.ch-255-66");
+		expect(getNewFormatFigure(oldFigure)).toBe("hd-180-1.ch-255-66");
+	});
+
+	it("allows custom options", () => {
+		const oldFigure = "hr-11782-40-40.hd-180-7-14.ch-11592-66.ha-11958-70-1408";
+		expect(getNewFormatFigure(oldFigure, { excludeShoes: false })).toBe(
+			"hd-180-1.ch-255-66.ha-310-70",
+		);
 	});
 });

src/lib/figure-convert.ts

@@ -98,18 +98,58 @@ export function convertFigurePart(part: string): string {
  * Example: "hr-11782-40-40.hd-180-7-14.ch-11592-66.lg-10726-79-1408.sh-11764-1408.ha-11958-70-1408.wa-2007-0"
  *        -> "hd-180-1.hd-180-1.ch-255-66.lg-280-110.sh-305-62.ha-310-70.wa-200-0"
  */
-export function convertFigureString(figure: string): string {
+export interface ConvertFigureOptions {
+	/** Exclude shoes (ha-) */
+	excludeShoes?: boolean;
+	/** Exclude waist (wa-) */
+	excludeWaist?: boolean;
+	/** Remove duplicate head/hair (keep first hd-) */
+	dedupeHead?: boolean;
+}
+
+export function convertFigureString(
+	figure: string,
+	options: ConvertFigureOptions = {},
+): string {
 	if (!figure) return figure;
 
+	const {
+		excludeShoes = true,
+		excludeWaist = true,
+		dedupeHead = true,
+	} = options;
+
 	const parts = figure.split(".");
 	const converted = parts.map(convertFigurePart);
-	return converted.join(".");
+
+	let result = converted;
+	if (excludeShoes) {
+		result = result.filter((p) => !p.startsWith("ha-"));
+	}
+	if (excludeWaist) {
+		result = result.filter((p) => !p.startsWith("wa-"));
+	}
+	if (dedupeHead) {
+		const seen = new Set<string>();
+		result = result.filter((p) => {
+			if (p.startsWith("hd-")) {
+				if (seen.has("hd")) return false;
+				seen.add("hd");
+			}
+			return true;
+		});
+	}
+
+	return result.join(".");
 }
 
 /**
  * Get the new format figure string for a user's look.
  * Handles both old and new format input.
  */
-export function getNewFormatFigure(look: string): string {
-	return convertFigureString(look);
+export function getNewFormatFigure(
+	look: string,
+	options?: ConvertFigureOptions,
+): string {
+	return convertFigureString(look, options);
 }