130 lines
3.2 KiB
TypeScript
130 lines
3.2 KiB
TypeScript
// deno-lint-disable-must-await-calls
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import { Cursor } from "./cursor.ts";
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import { colorize } from "./style.ts";
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import { TerminalBlock, TerminalLayout } from "./TerminalLayout.ts";
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export async function cliPrompt(
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message: string,
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block?: TerminalBlock,
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): Promise<string> {
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const encoder = new TextEncoder();
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const input: string[] = [];
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await Deno.stdin.setRaw(true);
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const cursorVisible = Cursor["visible"];
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Cursor.show();
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let range: [number, number] = [0, 1];
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if (block) {
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range = block.setLines([message + " "]);
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} else {
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Deno.stdout.writeSync(encoder.encode(message + " "));
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}
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const buf = new Uint8Array(1);
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while (true) {
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const n = await Deno.stdin.read(buf);
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if (n === null) break;
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const byte = buf[0];
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if (byte === 3) { // Ctrl+C
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Deno.stdin.setRaw(false);
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block?.["layout"]?.clearAll();
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block?.clear();
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Deno.exit(130);
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}
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if (byte === 13) { // Enter
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break;
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} else if (byte === 127 || byte === 8) { // Backspace
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input.pop();
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} else if (byte >= 32 && byte <= 126) { // Printable chars
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input.push(String.fromCharCode(byte));
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}
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const line = message + " " + input.join("");
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if (block) {
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range = block.setLines([line], range);
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} else {
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Deno.stdout.writeSync(encoder.encode("\r\x1b[K" + line));
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}
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}
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await Deno.stdin.setRaw(false);
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if (!cursorVisible) {
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Cursor.hide();
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}
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Deno.stdout.writeSync(encoder.encode("\n"));
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return input.join("");
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}
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export function cliConfirm(message: string, block?: TerminalBlock) {
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return cliPrompt(message + " (y/n)", block).then((v) =>
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v.toLowerCase() === "y"
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);
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}
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export function cliAlert(message: string, block?: TerminalBlock) {
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return cliPrompt(
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message + colorize(" Press Enter to continue", "gray"),
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block,
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).then((v) => {
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return v;
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});
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}
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export function cliLog(
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message: string | object | Array<unknown>,
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block?: TerminalBlock,
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) {
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if (!block) {
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console.log(message);
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} else {
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if (typeof message === "object") message = Deno.inspect(message);
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block.setLines(message.split("\n"));
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}
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}
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if (import.meta.main) {
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Cursor.hide();
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const layout = new TerminalLayout();
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const title = new TerminalBlock();
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const block = new TerminalBlock();
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block.setPreserveHistory(true);
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// ScrollManager.enable(block);
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title.setLines(["Hello, World!"]);
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title.setFixedHeight(1);
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layout.register("title", title);
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layout.register("block", block);
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Deno.addSignalListener("SIGINT", () => {
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layout.clearAll();
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// console.clear();
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Deno.exit(0);
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});
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const name = await cliPrompt("Enter your name:", block);
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cliLog(`Hello, ${name}!`, block);
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const single = await cliConfirm("Are you single?", block);
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cliLog(single ? "Do you want to go out with me?" : "Okay", block);
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// ScrollManager.enable(block);
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const loopingConvo = [
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"No response?",
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"I guess that's okay",
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"Maybe I'll see you next week?",
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"Wow, really not going to say anything to me?",
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"Well, if that's how you feel",
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];
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let convo = 0;
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setInterval(() => {
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cliLog(loopingConvo[convo % loopingConvo.length], block);
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convo++;
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}, 2000);
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// setTimeout(async () => {
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// await cliAlert("Well, if that's that...", block);
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// Deno.exit(0);
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// }, 10000);
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}
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