feat: Move to Astro

src/libs/FilesUtils.ts

@@ -0,0 +1,12 @@
+import { promises as fs } from 'node:fs'
+
+export default class FilesUtils {
+	public static async exists(path: string): Promise<boolean> {
+		try {
+			await fs.stat(path)
+			return true
+		} catch {
+			return false
+		}
+	}
+}

src/libs/HTTPError.ts

@@ -0,0 +1,62 @@
+
+/**
+ * Add headers:
+ *     Content-Type: application/problem+json
+ * 
+ * following https://www.rfc-editor.org/rfc/rfc7807.html
+ */
+export default interface JSONError {
+	/**
+	 * A URI reference [RFC3986] that identifies the
+	 * problem type.
+	 * 
+	 * This specification encourages that, when
+	 * dereferenced, it provide human-readable documentation for the
+	 * problem type (e.g., using HTML [W3C.REC-html5-20141028]).
+	 * 
+	 * When
+	 * this member is not present, its value is assumed to be
+	 * "about:blank"
+	 */
+	type?: string
+	
+	/**
+	 * A short, human-readable summary of the problem
+	 * type.
+	 * 
+	 * It SHOULD NOT change from occurrence to occurrence of the
+	 * problem, except for purposes of localization (e.g., using
+	 * proactive content negotiation; see [RFC7231], Section 3.4).
+	 */
+	title?: string
+
+	/**
+	 * The HTTP status code ([RFC7231], Section 6)
+	 * generated by the origin server for this occurrence of the problem.
+	 */
+	status?: number
+
+	/**
+	 * A human-readable explanation specific to this
+	 * occurrence of the problem.
+	 */
+	details?: string
+
+	/**
+	 * A URI reference that identifies the specific
+	 * occurrence of the problem.
+	 * 
+	 * It may or may not yield further
+	 * information if dereferenced.
+	 */
+	instance?: string
+}
+
+export function buildRFC7807Error(error: JSONError & Record<string, any>): Response {
+	return new Response(JSON.stringify(error), {
+		headers: {
+			'Content-Type': 'application/problem+json'
+		},
+		status: error.status ?? 500
+	})
+}

src/libs/gcodeUtils.ts

@@ -0,0 +1,64 @@
+function parseNumber(str: string): number | undefined {
+	if (!/^(\d|\.)+$/g.test(str)) {
+		return undefined
+	}
+	const float = parseFloat(str)
+	const int = parseInt(str, 10)
+	if (isNaN(int)) {
+		return undefined
+	}
+	if (int !== float) {
+		return float
+	}
+	return int
+}
+
+function decodeTime(text: string): number {
+	let timeInSec = 0
+	for (const it of text.split(' ')) {
+		const lastChar = it.charAt(it.length - 1)
+		const time = parseInt(it.slice(0, it.length - 1), 10)
+		switch (lastChar) {
+			case 'm':
+				timeInSec += time * 60
+				break;
+			case 's':
+				timeInSec += time
+				break;
+			case 'h':
+				timeInSec += time * 60 * 60
+				break;
+			case 'd':
+				timeInSec += time * 60 * 60 * 24
+				break;
+			default:
+				throw new Error(`error parsing time ${it} (${time})`)
+		}
+	}
+	return timeInSec
+}
+
+export function getParams(data: string) {
+	const lines = data.split('\n').filter((it) => it.startsWith(';') && it.includes('='))
+	const obj: Record<string, string | number> = {}
+	for (const line of lines) {
+		const [key, value] = line.split('=', 2).map((it) => it.slice(1).trim())
+		let realKey = key.replace(/ /g, '_').replace(/\[|\]|\(|\)/g, '')
+		const realValue = parseNumber(value) ?? value
+		let offset = 0
+		while (obj[`${realKey}${offset > 0 ? `_${offset}` : ''}`] && obj[`${realKey}${offset > 0 ? `_${offset}` : ''}`] !== realValue) {
+			offset++
+		}
+		if (offset > 0) {
+			realKey = `${realKey}_${offset}`
+		}
+		if (obj[realKey] && obj[realKey] !== realValue) {
+			throw new Error(`Key collision ${key}=${realValue} ${realKey}=${obj[realKey]}`)
+		}
+		obj[realKey] = parseNumber(value) ?? value
+		if (realKey === 'estimated_printing_time_normal_mode') {
+			obj['estimated_printing_time_seconds'] = decodeTime(value)
+		}
+	}
+	return obj
+}