add node.js cli to create cards, decks and files
This commit is contained in:
Niko Lockenvitz
parent
5873ea3af5
commit
43ee5d2c22
3 changed files with 292 additions and 0 deletions
240
cli/index.js
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240
cli/index.js
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const fs = require("fs");
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const readline = require('readline').createInterface({
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input: process.stdin,
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output: process.stdout
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});
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let curFilename;
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let curFileContent;
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let saveOnClose = false;
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readline.on('close', async () => {
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if (saveOnClose) await saveCurrentFile();
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process.exit(0);
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});
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async function cli () {
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let cmd;
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while (true) {
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cmd = await readCommand(`Commands: new file <filename>, edit file <filename>, exit`);
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if (cmd.startsWith("new file ")) {
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curFilename = cmd.substring("new file ".length);
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if (!curFilename.endsWith(".json")) curFilename += ".json";
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if (await doesFileAlreadyExist(curFilename)) {
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console.log(`There is already a file ${curFilename}`);
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} else {
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curFileContent = { meta: {}, decks: {} };
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await saveCurrentFile(false);
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await cliEditFile(curFilename);
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}
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} else if (cmd.startsWith("edit file ")) {
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const filename = cmd.substring("edit file ".length)
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await cliEditFile(filename);
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} else if (cmd === "exit") {
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if (saveOnClose) await saveCurrentFile();
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break;
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} else {
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console.log("Your command was not understood...");
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}
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saveOnClose = false;
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}
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readline.close();
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}
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cli();
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async function cliEditFile (filename) {
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saveOnClose = true;
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curFilename = filename;
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if (!curFilename.endsWith(".json")) curFilename += ".json";
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curFileContent = await readJSONFromFile(curFilename);
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console.log(`editing ${curFilename}`);
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while (true) {
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const cmd = await readCommand(`Commands: new deck <name>, list decks, edit deck <name>, delete deck <name>, show meta, meta <attr> <value>, whereami, save, quit`);
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if (cmd.startsWith("new deck ")) {
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let deckName = cmd.substring("new deck ".length);
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if (curFileContent.decks[deckName] === undefined) {
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curFileContent.decks[deckName] = {
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meta: { deck_name: deckName, next_id: 0 },
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cards: {}
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}
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await cliEditDeck(deckName);
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} else {
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console.log("There is already a deck with that name. You might want to edit it.");
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}
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} else if (cmd === "list decks") {
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for (let deckName of Object.keys(curFileContent.decks)) {
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console.log(deckName);
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}
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} else if (cmd.startsWith("edit deck ")) {
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const deckName = cmd.substring("edit deck ".length);
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if (deckName in curFileContent.decks) {
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await cliEditDeck(deckName);
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} else {
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console.log("There is no deck with that name. You might want to create it.");
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}
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} else if (cmd.startsWith("delete deck ")) {
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const deckName = cmd.substring("delete deck ".length);
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const conf = await readCommand(`Do you really want to delete the deck ${deckName}? (y/n)`);
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if (conf.toLowerCase() === "y") {
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delete curFileContent.decks[deckName];
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console.log(`Deleted deck ${deckName}`);
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}
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} else if (cmd === "show meta") {
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for (let attr in curFileContent.meta) {
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console.log(`${attr}: ${curFileContent.meta[attr]}`);
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}
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} else if (cmd.startsWith("meta ")) {
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const attr = cmd.split(" ")[1];
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const value = cmd.substring(`meta ${attr} `.length);
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curFileContent.meta[attr] = value;
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} else if (cmd === "whereami") {
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console.log(`File: ${curFilename}`);
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} else if (cmd === "save") {
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await saveCurrentFile();
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} else if (cmd === "quit") {
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await saveCurrentFile();
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break;
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} else {
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console.log("Your command was not understood...");
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}
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}
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}
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async function cliEditDeck (deckName) {
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while (true) {
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const cmd = await readCommand(`Commands: add cards, list cards, edit card <id>, delete card <id>, show meta, meta <attr> <value>, whereami, save, quit`);
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if (cmd === "add cards") {
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await cliAddCards(deckName);
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} else if (cmd === "list cards") {
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for (let cardId in curFileContent.decks[deckName].cards) {
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const card = curFileContent.decks[deckName].cards[cardId];
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console.log(`id: ${cardId} q: ${card.q} a: ${card.a}`)
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}
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} else if (cmd.startsWith("edit card ")) {
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const cardId = cmd.substring("edit card ".length);
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const card = curFileContent.decks[deckName].cards[cardId];
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console.log(`q: ${card.q} a: ${card.a}`);
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console.log("If you leave a field blank, it will not be changed");
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const q = await readQA("Q");
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if (q) card.q = q;
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const a = await readQA("A");
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if (a) card.a = a;
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console.log(`q: ${card.q} a: ${card.a}`);
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} else if (cmd.startsWith("delete card ")) {
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const cardId = cmd.substring("delete card ".length);
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const card = curFileContent.decks[deckName].cards[cardId];
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console.log(`id: ${cardId} q: ${card.q} a: ${card.a}`);
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const conf = await readCommand(`Do you really want to delete the card ${cardId}? (y/n)`);
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if (conf.toLowerCase() === "y") {
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delete curFileContent.decks[deckName].cards[cardId];
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console.log(`Deleted card ${cardId}`);
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}
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} else if (cmd === "show meta") {
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for (let attr in curFileContent.decks[deckName].meta) {
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console.log(`${attr}: ${curFileContent.decks[deckName].meta[attr]}`);
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}
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} else if (cmd.startsWith("meta ")) {
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const attr = cmd.split(" ")[1];
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const value = cmd.substring(`meta ${attr} `.length);
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curFileContent.decks[deckName].meta[attr] = value;
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} else if (cmd === "whereami") {
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console.log(`Deck: ${curFilename} > ${deckName}`);
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} else if (cmd === "save") {
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await saveCurrentFile();
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} else if (cmd === "quit") {
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await saveCurrentFile();
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break;
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} else {
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console.log("Your command was not understood...");
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}
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}
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}
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async function cliAddCards (deckName) {
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console.log("\nEnter questions and answers. When you leave the question blank, you can run commands: continue, save, quit");
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while (true) {
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console.log("");
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const q = await readQA("Q");
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if (q === "") {
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const cmd = await readCommand(`Commands: continue, save, quit`);
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if (cmd === "continue") {
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continue;
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} else if (cmd === "save") {
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await saveCurrentFile();
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continue;
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} else if (cmd === "quit") {
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await saveCurrentFile();
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return;
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} else {
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console.log("Your command was not understood...");
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continue;
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}
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} else if (["quit", "exit"].includes(q)) {
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console.log("(If you want to quit, you need to leave the question blank.)");
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}
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const a = await readQA("A");
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const id = addCardToDeck(deckName, q, a);
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console.log(`id: ${id}\n`);
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}
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}
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function addCardToDeck (deckName, q, a) {
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const id = curFileContent.decks[deckName].meta.next_id;
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curFileContent.decks[deckName].cards[id] = { q, a };
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curFileContent.decks[deckName].meta.next_id = id + 1;
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return id;
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}
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async function readCommand (question) {
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return new Promise((resolve, reject) => {
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readline.question(`\n${question}\n>> `, answer => {
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resolve(answer);
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});
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});
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}
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async function readQA (text) {
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return new Promise((resolve, reject) => {
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readline.question(`${text}: `, input => {
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resolve(input);
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});
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});
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}
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async function saveCurrentFile (log=true) {
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await writeJSONToFile(curFilename, curFileContent);
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if (log) console.log(`\nSaved ${curFilename}`);
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}
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async function doesFileAlreadyExist (filepath) {
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return new Promise((resolve, reject) => {
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fs.exists(filepath, (exists) => {
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resolve(exists);
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});
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});
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}
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async function readJSONFromFile (filepath) {
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return new Promise((resolve, reject) => {
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fs.readFile(filepath, "utf8", function (err, data) {
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if (err) {
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reject(err);
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} else {
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resolve(JSON.parse(data));
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}
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});
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});
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}
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async function writeJSONToFile (filepath, content) {
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return new Promise((resolve, reject) => {
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fs.writeFile(filepath, JSON.stringify(content, null, 2), "utf8", function (err) {
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if (err) {
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reject(err);
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} else {
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resolve();
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}
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});
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});
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}
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13
cli/package.json
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13
cli/package.json
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{
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"name": "cli",
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"version": "0.0.1",
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"description": "generate files for ffc",
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"main": "index.js",
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"scripts": {
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"cli": "node index.js",
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"start": "node index.js",
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"test": "echo \"Error: no test specified\" && exit 1"
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},
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"author": "Niko Lockenvitz",
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"license": "MIT"
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}
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39
cli/test.json
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39
cli/test.json
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{
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"meta": {
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"author": "Niko Lockenvitz"
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},
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"decks": {
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"d0": {
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"meta": {
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"deck_name": "d0",
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"next_id": 2
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},
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"cards": {
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"0": {
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"q": "2+2?",
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"a": "4"
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},
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"1": {
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"q": "3*4*10?",
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"a": "5!"
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}
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}
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},
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"d1": {
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"meta": {
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"deck_name": "d1",
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"next_id": 3
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},
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"cards": {
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"0": {
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"q": "How many seconds in a day (on earth)?",
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"a": "86400"
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},
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"2": {
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"q": "Has the year 2000 been a leap year?",
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"a": "yes (because each year divisible by 4 is a leap year (except the ones divisible by 100 (except the ones divisible by 400)))"
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}
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}
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}
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}
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}
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