1 files changed, 165 insertions, 0 deletions
diff --git a/entries/braxtonhall/hitl2/fib.js b/entries/braxtonhall/hitl2/fib.js
new file mode 100644
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+++ b/entries/braxtonhall/hitl2/fib.js
@@ -0,0 +1,165 @@
+const readline = require('readline');
+
+const random = (lo, hi) => lo + Math.floor(Math.random() * (hi - lo));
+const sleep = (ms) => new Promise((resolve) => setTimeout(resolve, ms));
+const rsleep = (lo, hi) => sleep(random(lo, hi));
+
+const interface = readline.createInterface({
+	input: process.stdin,
+	output: process.stdout,
+});
+
+const prompt = (question) =>
+	new Promise((resolve) =>
+		interface.question(`${blue(question)}\n> `, resolve));
+
+const coloured = (colour) => (str) => `${colour}${reset(str)}`;
+const yellow = coloured("\x1b[33m");
+const blue = coloured("\x1b[34m");
+const green = coloured("\x1b[32m");
+const reset = (str) => `${str}\x1b[0m`;
+
+const add = (a, b) => compute(a, b, "+");
+
+const hedges = [
+	"um. okay. so,",
+	"right. next. uh,",
+	"hmm",
+	"okay. so,",
+	"um. okay.",
+	"uh okay..",
+	"so..",
+];
+const confirmations = [
+	"o right. ofc.",
+	"nice.",
+	"thank u.",
+	"thanks.",
+	"um right. yes.",
+	"right.",
+];
+const innumerables = [
+	"yeah i don't think we can do that one",
+	"that's not great for fib",
+	"um no sorry i can't help with that one",
+	"um????? no my b i can't help with that one",
+	"oh no my bad no i can't help u with that",
+	"sorry not that one",
+	"yaaa not that one though",
+];
+const dones = [
+	"we're done aren't we?",
+	"oh! that's it..?",
+	"all ... done??????",
+	"i think it's over",
+	"no more computation?",
+	"oh!",
+	"wait you did it all.",
+	"oh that's it?",
+];
+const thinkings = [
+	"let me just think a second..",
+	"hold on..",
+	"i just need a moment",
+	"uh wait",
+	"just looking at the data",
+	"sorry - looking over things",
+	"got everything just one sec",
+	"let me look at things",
+	"let me think a moment",
+	"just thinking ...",
+];
+const rarray = (array) => array[random(0, array.length)];
+const hedge = () => rarray(hedges);
+const confirmation = () => rarray(confirmations);
+const innumerable = () => rarray(innumerables);
+const done = () => rarray(dones);
+const thinking = () => rarray(thinkings);
+
+const rentries = (map) => rarray(Array.from(map.entries()));
+
+const say = (msg, before, after) =>
+	sleep(before)
+		.then(() => console.log(...msg))
+		.then(() => sleep(after));
+
+const fast = (...msg) => say(msg, random(30, 100), random(30, 100));
+const slow = (...msg) => say(msg, random(400, 2000), random(200, 1000));
+
+const compute = (a, b, op) =>
+	slow(hedge())
+		.then(() => prompt(`what is ${a} ${op} ${b}?`))
+		.then((value) => slow(confirmation()).then(() => value));
+
+const build = (n, map) => {
+	if (n <= 0) {
+		const zero = () => Promise.resolve();
+		map.set(zero, 0);
+		return zero;
+	} else if (n === 1) {
+		const one = () => Promise.resolve();
+		map.set(one, 1);
+		return one;
+	} else {
+		const sub1 = build(n - 1, map);
+		const sub2 = build(n - 2, map);
+		const nth = () =>
+			(map.get(nth) === null && (map.get(sub1) !== null && map.get(sub2) !== null))
+				? add(map.get(sub2), map.get(sub1))
+					.then((value) => Promise.resolve(map.set(nth, value)).then(() => value))
+				: Promise.resolve();
+		map.set(nth, null);
+		return nth;
+	};
+};
+
+const fill = (map, top) =>
+	map.get(top) === null
+		? rentries(map)[0]().then(() => fill(map, top))
+		: Promise.resolve(map.get(top));
+
+const hitlfib = (n) =>
+	Promise.resolve(new Map())
+		.then((map) => Promise.resolve(build(n, map))
+			.then((top) => fill(map, top)));
+
+const hitlfibiter = (n, a = 0, b = 1) =>
+	n === 0
+		? Promise.resolve(a)
+		: n === 1
+			? Promise.resolve(b)
+			: add(a, b).then((result) => hitlfibiter(n - 1, b, result));
+
+const number = () =>
+	prompt("give me a number")
+		.then((str) => str.trim())
+		.then((trimmed) => Promise.resolve(Number(trimmed))
+			.then((n) => (trimmed !== "" && n !== null && isFinite(n))
+				? n
+				: slow(hedge()).then(() => slow(innumerable())).then(number)));
+
+const choose = () =>
+	prompt("would you like to use my iteration optimization??? yes????")
+		.then((response) => ["y", "yes"].includes(response.trim().toLowerCase()))
+		.then((should) => should
+			? fast("yes!").then(() => hitlfibiter)
+			: fast("oh.").then(() => slow("okay.")).then(() => slow("we can take it slow.")).then(() => hitlfib));
+
+const flow = () =>
+	slow("\nwhat's the fib you'd like to compute? i can help u out")
+		.then(number)
+		.then((n) => slow(confirmation())
+			.then(() => fast(hedge()))
+			.then(() => slow(`i will help u compute ${green(`fib ${n}`)}`))
+			.then(choose)
+			.then((fib) => fib(n))
+			.then((fibn) => slow(hedge())
+				.then(() => fast(done()))
+				.then(() => fast(thinking()))
+				.then(() => rsleep(Math.min(1000, n * 100), Math.max(n * 500, 1000)))
+				.then(() => slow(green(`fib ${n} is ${fibn}`)))))
+		.then(() => rsleep(1000, 4000));
+
+const loop = () => flow().then(loop);
+
+loop();