Move utils folder and fix published text

utils/validate.js

@@ -0,0 +1,83 @@
+class V {
+	constructor() {
+		this.chain = []
+		this.state = {}
+		this.finished = false
+		this.endValue = null
+	}
+
+	with(preset) {
+		this.check(...preset)
+		return this
+	}
+
+	check(conditionCallback, elseCallback) {
+		this.chain.push(() => {
+			if (!conditionCallback(this.state)) this._end(elseCallback(this.state))
+		})
+		return this
+	}
+
+	last(callback) {
+		this.chain.push(() => {
+			this._end(callback(this.state))
+		})
+		return this
+	}
+
+	go() {
+		for (const s of this.chain) {
+			s()
+			if (this.finished) return this.endValue
+		}
+		return {
+			statusCode: 500,
+			contentType: "application/json",
+			content: {
+				error: "Reached end of V chain without response"
+			}
+		}
+	}
+
+	_end(value) {
+		this.finished = true
+		this.endValue = value
+	}
+}
+
+function presetLoad(additions) {
+	return [
+		state => {
+			Object.assign(state, additions)
+			return true
+		},
+		null
+	]
+}
+
+function presetURLParamsBody() {
+	return [
+		state => {
+			try {
+				state.params = new URLSearchParams(state.body.toString())
+				return true
+			} catch (e) {
+				console.error(e)
+				return false
+			}
+		},
+		() => {
+			return {
+				statusCode: 400,
+				contentType: "application/json",
+				content: {
+					error: "Could not parse body as URLSearchParams"
+				}
+			}
+		}
+	]
+}
+
+module.exports.V = V
+module.exports.presetLoad = presetLoad
+module.exports.presetURLParamsBody = presetURLParamsBody