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bamazonManager.js
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bamazonManager.js
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// be sure to npm install the following
var inquirer = require('inquirer');
var mysql = require('mysql');
//connects to sql database
var connection = mysql.createConnection({
host: "localhost",
port: 3306,
user: "root",
password: "password", //Your Password for MySQL Workbench
database: "bamazon" //Your MySQL Database Name
});
connection.connect(function (err) {
if (err) throw err;
connection.query("SELECT id, product_name, department_name, price, stock_quantity FROM products", function (err, result, fields) {
if (err) throw err;
console.log("WELCOME, MANAGER!");
console.log("\n //==================================================================\\ \n");
questions();
});
});
function questions() {
inquirer.prompt([
{
type: 'list',
name: "tasks",
message: "Would You Like to Practice Your Managerial Skillz? Belieb in yourself!",
choices: ["View Products for Sale", "View Low Inventory", "Add to Inventory", "Add New Product"]
// validate: function (value) {
// if (isNaN(value) === false) {
// return true;
// }
// return false;
// }
}
]).then(function (answer) {
var managerTask = answer.tasks;
switch (managerTask) {
case "View Products for Sale":
viewProducts();
break;
case "View Low Inventory":
lowInventory();
break;
case "Add to Inventory":
addInventory();
break;
case "Add New Product":
newProduct();
break;
};
});
};
function viewProducts() {
connection.query("SELECT id, product_name, department_name, price, stock_quantity FROM products", function (err, result, fields) {
if (err) throw err;
console.log("VIEW EXISTING INVENTORY!");
console.log("\n //==================================================================\\ \n");
console.log("FOR YOUR REVIEW:");
console.log(result);
console.log("\n //=================================================================//");
process.exit()
});
};
function lowInventory() {
connection.query("SELECT id, product_name, department_name, price, stock_quantity FROM products", function (err, response) {
if (err) throw err;
let lowExists = 0;
for (i = 0; response[0].stock_quantity <= 100; i++) {
lowExists++;
if (lowExists > 0) {
console.log("LOW INVENTORY ITEMS!");
console.log("\n //==================================================================\\ \n");
console.log("FOR YOUR REVIEW:");
console.log(response[i]);
console.log("\n //=================================================================//");
process.exit();
} else {
console.log("All items are in sufficient quantity!");
process.exit();
};
};
});
};
function addInventory() {
connection.query("SELECT id, product_name, department_name, price, stock_quantity FROM products", function (err, result, fields) {
if (err) throw err;
function makeChoices() {
let choicesArr = [];
for (let i = 0; i < result.length; i++) {
choicesArr.push(result[i].product_name);
}
return choicesArr;
};
inquirer.prompt([
{
type: 'list',
name: 'addChoice',
message: "Which Product would you like to add inventory to? (Select product Name)",
choices: makeChoices
},
{
type: 'list',
name: 'numbers',
message: "How many would you like to add?",
choices: ["100", "200", "500", "1000", "10000"],
// validate: function (value) {
// if (isNaN(value) === false) {
// return true;
// }
// return false;
// }
}
]).then(function (choice) {
let productChoice = choice.addChoice;
let productNumber = parseInt(choice.numbers);
let newInventory = productNumber + result[0].stock_quantity;
// updates database based on product_name and quantity choosen
let sql = "UPDATE products SET stock_quantity = '" + newInventory + "' WHERE product_name = '" + productChoice + "'";
console.log(sql);
connection.query(sql, function (err, result) {
if (err) throw err;
console.log(result.affectedRows + " record(s) updated");
process.exit()
});
});
});
};
function newProduct() {
inquirer.prompt([
{
name: "name",
message: "What new item would you like to add to Inventory? (product_name)",
},
{
name: "dept",
message: "What department does this item belong to? (department_name)"
},
{
name: "price",
message: "How much does this product cost?"
},
{
name: "quantity",
message: "How many of this item are you putting into inventory, my guy?"
}
]).then(function (newItems) {
let newName = newItems.name;
let newDept = newItems.dept;
let newPrice = newItems.price;
let newQuantity = parseInt(newItems.quantity);
let sqlUpdate = "INSERT INTO products (product_name, department_name, price, stock_quantity) VALUES(' " + newName + " ', ' " + newItems.dept + " ' ," + newPrice + ", " + newQuantity + ")";
console.log("squlUpdate let" + sqlUpdate);
connection.query(sqlUpdate, function (err, result) {
if (err) throw err;
console.log(newName + " added to record");
process.exit()
});
});
};