add hw2

node_modules/@iconify/utils/lib/icon-set/convert-info.js

@@ -0,0 +1,126 @@
+const minDisplayHeight = 16;
+const maxDisplayHeight = 24;
+/**
+* Check if displayHeight value is valid, returns 0 on failure
+*/
+function validateDisplayHeight(value) {
+	while (value < minDisplayHeight) value *= 2;
+	while (value > maxDisplayHeight) value /= 2;
+	return value === Math.round(value) && value >= minDisplayHeight && value <= maxDisplayHeight ? value : 0;
+}
+/**
+* Convert data to valid CollectionInfo
+*/
+function convertIconSetInfo(data, expectedPrefix = "") {
+	if (typeof data !== "object" || data === null) return null;
+	const source = data;
+	const getSourceNestedString = (field, key, defaultValue = "") => {
+		if (typeof source[field] !== "object") return defaultValue;
+		const obj = source[field];
+		return typeof obj[key] === "string" ? obj[key] : defaultValue;
+	};
+	let name;
+	if (typeof source.name === "string") name = source.name;
+	else if (typeof source.title === "string") name = source.title;
+	else return null;
+	if (expectedPrefix !== "" && typeof source.prefix === "string" && source.prefix !== expectedPrefix) return null;
+	const info = { name };
+	switch (typeof source.total) {
+		case "number":
+			info.total = source.total;
+			break;
+		case "string": {
+			const num = parseInt(source.total);
+			if (num > 0) info.total = num;
+			break;
+		}
+	}
+	if (typeof source.version === "string") info.version = source.version;
+	info.author = { name: getSourceNestedString("author", "name", typeof source.author === "string" ? source.author : "") };
+	if (typeof source.author === "object") {
+		const sourceAuthor = source.author;
+		if (typeof sourceAuthor.url === "string") info.author.url = sourceAuthor.url;
+	}
+	info.license = { title: getSourceNestedString("license", "title", typeof source.license === "string" ? source.license : "") };
+	if (typeof source.license === "object") {
+		const sourceLicense = source.license;
+		if (typeof sourceLicense.spdx === "string") info.license.spdx = sourceLicense.spdx;
+		if (typeof sourceLicense.url === "string") info.license.url = sourceLicense.url;
+	}
+	if (source.samples instanceof Array) {
+		const samples = [];
+		source.samples.forEach((item) => {
+			if (typeof item === "string" && !samples.includes(item)) samples.push(item);
+		});
+		if (samples.length) info.samples = samples;
+	}
+	if (typeof source.height === "number" || typeof source.height === "string") {
+		const num = parseInt(source.height);
+		if (num > 0) info.height = num;
+	}
+	if (source.height instanceof Array) {
+		source.height.forEach((item) => {
+			const num = parseInt(item);
+			if (num > 0) {
+				if (!(info.height instanceof Array)) info.height = [];
+				info.height.push(num);
+			}
+		});
+		switch (info.height.length) {
+			case 0:
+				delete info.height;
+				break;
+			case 1: info.height = info.height[0];
+		}
+	}
+	if (typeof info.height === "number") {
+		const displayHeight = validateDisplayHeight(info.height);
+		if (displayHeight && displayHeight !== info.height) info.displayHeight = displayHeight;
+	}
+	["samplesHeight", "displayHeight"].forEach((prop) => {
+		const value = source[prop];
+		if (typeof value === "number" || typeof value === "string") {
+			const displayHeight = validateDisplayHeight(parseInt(value));
+			if (displayHeight) info.displayHeight = displayHeight;
+		}
+	});
+	if (typeof source.category === "string") info.category = source.category;
+	if (source.tags instanceof Array) info.tags = source.tags;
+	switch (typeof source.palette) {
+		case "boolean":
+			info.palette = source.palette;
+			break;
+		case "string":
+			switch (source.palette.toLowerCase()) {
+				case "colorless":
+				case "false":
+					info.palette = false;
+					break;
+				case "colorful":
+				case "true": info.palette = true;
+			}
+			break;
+	}
+	if (source.hidden === true) info.hidden = true;
+	Object.keys(source).forEach((key) => {
+		const value = source[key];
+		if (typeof value !== "string") return;
+		switch (key) {
+			case "url":
+			case "uri":
+				info.author.url = value;
+				break;
+			case "licenseURL":
+			case "licenseURI":
+				info.license.url = value;
+				break;
+			case "licenseID":
+			case "licenseSPDX":
+				info.license.spdx = value;
+				break;
+		}
+	});
+	return info;
+}
+
+export { convertIconSetInfo };