Equipment buying and selling complete

common/utilities.js

@@ -21,7 +21,14 @@ let excluded = [ //messages that should not be logged
 	'News sent',
 
 	'Can\'t train while attacking',
-	'Can\'t untrain while attacking'
+	'Can\'t untrain while attacking',
+	'Can\'t purchase while attacking',
+	'Can\'t sell while attacking',
+
+	'Purchase made',
+	'Sale made',
+
+	'Cleaned database'
 ];
 
 const log = (msg, ...args) => {

server/equipment.js

@@ -4,50 +4,54 @@ require('dotenv').config();
 //utilities
 let { log } = require('../common/utilities.js');
 
-const statistics = (connection, req, res, cb) => {
+let { isAttacking } = require('./combat.js');
+
+const getStatistics = (cb) => {
+	//TODO: apiVisible field
 	return cb(undefined, { 'statistics': require('./equipment_statistics.json') });
 };
 
-const owned = (connection, req, res, cb) => {
+const getOwned = (connection, id, cb) => {
+	let query = 'SELECT name, quantity FROM equipment WHERE accountId = ?;';
+	connection.query(query, [id], (err, results) => {
+		if (err) throw err;
+
+		let ret = {};
+
+		Object.keys(results).map((key) => {
+			if (ret[results[key].name] !== undefined) {
+				log('WARNING: Invalid database state, equipment owned', id, JSON.stringify(results));
+			}
+			ret[results[key].name] = results[key].quantity;
+		});
+
+		return cb(undefined, { 'owned': ret });
+	});
+};
+
+const equipmentRequest = (connection) => (req, res) => {
 	//validate the credentials
 	let query = 'SELECT COUNT(*) AS total FROM sessions WHERE accountId = ? AND token = ?;';
 	connection.query(query, [req.body.id, req.body.token], (err, results) => {
 		if (err) throw err;
 
 		if (results[0].total !== 1) {
-			return cb('Invalid equipment owned credentials');
+			res.status(400).write(log('Invalid equipment credentials', req.body.id, req.body.token));
+			res.end();
+			return;
 		}
 
-		let query = 'SELECT name, quantity FROM equipment WHERE accountId = ?;';
-		connection.query(query, [req.body.id], (err, results) => {
-			if (err) throw err;
-
-			let res = {}
-
-			Object.keys(results).map((key) => {
-				if (res[results[key].name] !== undefined) {
-					log('WARNING: Invalid database state, equipment owned', JSON.stringify(results));
-				}
-				res[results[key].name] = results[key].quantity;
-			});
-
-			return cb(undefined, { 'owned': res });
-		});
-	});
-};
-
-const equipmentRequest = (connection) => (req, res) => {
 		//if no field received, send everything
 		if (!req.body.field) {
 			//compose the returned objects
-		statistics(connection, req, res, (err, statisticsObj) => {
+			return getStatistics((err, statisticsObj) => {
 				if (err) {
 					res.status(400).write(log(err, req.body.id, req.body.token, req.body.field));
 					res.end();
 					return;
 				}
 
-			return owned(connection, req, res, (err, ownedObj) => {
+				return getOwned(connection, req.body.id, (err, ownedObj) => {
 					if (err) {
 						res.status(400).write(log(err, req.body.id, req.body.token, req.body.field));
 						res.end();
@@ -59,14 +63,12 @@ const equipmentRequest = (connection) => (req, res) => {
 					res.end();
 				});
 			});
-
-		return;
 		}
 
 		//send specific fields
 		switch(req.body.field) {
 			case 'statistics':
-			return statistics(connection, req, res, (err, obj) => {
+				return getStatistics((err, obj) => {
 					if (err) {
 						res.status(400).write(log(err, req.body.id, req.body.token, req.body.field));
 					} else {
@@ -77,7 +79,7 @@ const equipmentRequest = (connection) => (req, res) => {
 				});
 
 			case 'owned':
-			return owned(connection, req, res, (err, obj) => {
+				return getOwned(connection, req.body.id, (err, obj) => {
 					if (err) {
 						res.status(400).write(log(err, req.body.id, req.body.token, req.body.field));
 					} else {
@@ -91,8 +93,206 @@ const equipmentRequest = (connection) => (req, res) => {
 				res.status(400).write(log('Unknown field received', req.body.id, req.body.token, req.body.field));
 				res.end();
 		}
+	});
 };
 
+const purchaseRequest = (connection) => (req, res) => {
+	//validate the credentials
+	let query = 'SELECT COUNT(*) AS total FROM sessions WHERE accountId = ? AND token = ?;';
+	connection.query(query, [req.body.id, req.body.token], (err, credentials) => {
+		if (err) throw err;
+
+		if (credentials[0].total !== 1) {
+			res.status(400).write(log('Invalid equipment purchase credentials', JSON.stringify(body), body.id, body.token));
+			res.end();
+			return;
+		}
+
+		//no purchasing if you're attacking
+		isAttacking(connection, req.body.id, (err, attacking) => {
+			if (err) throw err;
+
+			if (attacking) {
+				res.status(400).write(log('Can\'t purchase while attacking', req.body.id, req.body. token, req.body.type, req.body.name));
+				res.end();
+				return;
+			}
+
+			//get the player's gold
+			let query = 'SELECT gold, scientists FROM profiles WHERE accountId = ?;';
+			connection.query(query, [req.body.id], (err, results) => {
+				if (err) throw err;
+
+				//just in case
+				if (results.length === 0) {
+					res.status(400).write(log('Purchase made on unrecognized account', req.body.id, req.body.token));
+					res.end();
+					return;
+				}
+
+				//get the stats for all objects
+				getStatistics((err, { statistics }) => {
+					if (err) throw err;
+
+					//valid parameters
+					if(!statistics[req.body.type] || !statistics[req.body.type][req.body.name]) {
+						res.status(400).write(log('Invalid equipment purchase parameters', req.body.id, req.body.token, req.body.type, req.body.name));
+						res.end();
+						return;
+					}
+
+					//enough gold?
+					if (results[0].gold < statistics[req.body.type][req.body.name].cost) {
+						res.status(400).write(log('Not enough gold', req.body.id, req.body.token, req.body.type, req.body.name));
+						res.end();
+						return;
+					}
+
+					//for sale?
+					if (!statistics[req.body.type][req.body.name].visible || !statistics[req.body.type][req.body.name].purchasable) {
+						res.status(400).write(log('Item not for sale', req.body.id, req.body.token, req.body.type, req.body.name));
+						res.end();
+						return;
+					}
+
+					//high enough level?
+					if (results[0].scientists < statistics[req.body.type][req.body.name].scientistsRequired) {
+						res.status(400).write(log('Not enough scientists', req.body.id, req.body.token, req.body.type, req.body.name));
+						res.end();
+						return;
+					}
+
+					//purchase approved.
+
+					//get the user's current item data (including quantity)
+					let query = 'SELECT * FROM equipment WHERE accountId = ? AND name = ?;';
+					connection.query(query, [req.body.id, req.body.name], (err, results) => {
+						if (err) throw err;
+
+						//add to or update the record
+						let query;
+						if (results.length > 0) {
+							query = 'UPDATE equipment SET quantity = quantity + 1 WHERE accountId = ? AND name = ? AND type = ?;';
+						} else {
+							query = 'INSERT INTO equipment (accountId, name, type, quantity) VALUES (?, ?, ?, 1);';
+						}
+
+						connection.query(query, [req.body.id, req.body.name, req.body.type], (err) => {
+							if (err) throw err;
+
+							//remove gold from the user's account
+							let query = 'UPDATE profiles SET gold = gold - ? WHERE accountId = ?;';
+							connection.query(query, [statistics[req.body.type][req.body.name].cost, req.body.id], (err) => {
+								if (err) throw err;
+
+								//return the new owned data
+								getOwned(connection, req.body.id, (err, results) => {
+									if (err) throw err;
+
+									res.status(200).json(Object.assign(results));
+									res.end();
+
+									log('Purchase made', req.body.id, req.body.token, req.body.type, req.body.name);
+								});
+							});
+						});
+					});
+				});
+			});
+		});
+	});
+}
+
+const sellRequest = (connection) => (req, res) => {
+	//validate the credentials
+	let query = 'SELECT COUNT(*) AS total FROM sessions WHERE accountId = ? AND token = ?;';
+	connection.query(query, [req.body.id, req.body.token], (err, credentials) => {
+		if (err) throw err;
+
+		if (credentials[0].total !== 1) {
+			res.status(400).write(log('Invalid equipment sell credentials', JSON.stringify(body), body.id, body.token));
+			res.end();
+			return;
+		}
+
+		//no selling if you're attacking
+		isAttacking(connection, req.body.id, (err, attacking) => {
+			if (err) throw err;
+
+			if (attacking) {
+				res.status(400).write(log('Can\'t sell while attacking', req.body.id, req.body. token, req.body.type, req.body.name));
+				res.end();
+				return;
+			}
+
+			//get the player's item quantity
+			let query = 'SELECT * FROM equipment WHERE accountId = ? AND type = ? AND name = ?;';
+			connection.query(query, [req.body.id, req.body.type, req.body.name], (err, results) => {
+				if (err) throw err;
+
+				if (results.length === 0) {
+					res.status(400).write(log('Can\'t sell something you don\'t own', req.body.id, req.body. token, req.body.type, req.body.name));
+					res.end();
+					return;
+				}
+
+				//get the stats for all objects
+				getStatistics((err, { statistics }) => {
+					if (err) throw err;
+
+					//valid parameters
+					if(!statistics[req.body.type] || !statistics[req.body.type][req.body.name]) {
+						res.status(400).write(log('Invalid equipment sell parameters', req.body.id, req.body.token, req.body.type, req.body.name));
+						res.end();
+						return;
+					}
+
+					//for sale?
+					if (!statistics[req.body.type][req.body.name].saleable) {
+						res.status(400).write(log('Item can\'t be sold', req.body.id, req.body.token, req.body.type, req.body.name));
+						res.end();
+						return;
+					}
+
+					//sale approved.
+
+					//add gold to the user's account
+					let query = 'UPDATE profiles SET gold = gold + ? WHERE accountId = ?;';
+					connection.query(query, [Math.floor(statistics[req.body.type][req.body.name].cost/2), req.body.id], (err) => {
+						if (err) throw err;
+
+						//remove the item from the inventory
+						let query = 'UPDATE equipment SET quantity = quantity - 1 WHERE id = ?;';
+						connection.query(query, [results[0].id], (err) => {
+							if (err) throw err;
+
+							//return the new owned data
+							getOwned(connection, req.body.id, (err, results) => {
+								if (err) throw err;
+
+								res.status(200).json(Object.assign(results));
+								res.end();
+
+								log('Sale made', req.body.id, req.body.token, req.body.type, req.body.name);
+
+								//Extra: clean the database
+								let query = 'DELETE FROM equipment WHERE quantity <= 0;';
+								connection.query(query, (err) => {
+									if (err) throw err;
+
+									log('Cleaned database', 'equipment sale');
+								});
+							});
+						})
+					});
+				});
+			});
+		});
+	});
+}
+
 module.exports = {
-	equipmentRequest: equipmentRequest
+	equipmentRequest: equipmentRequest,
+	purchaseRequest: purchaseRequest,
+	sellRequest, sellRequest
 };

server/index.js

@@ -49,6 +49,8 @@ combat.runCombatTick(connection);
 
 let equipment = require('./equipment.js');
 app.post('/equipmentrequest', equipment.equipmentRequest(connection));
+app.post('/equipmentpurchaserequest', equipment.purchaseRequest(connection));
+app.post('/equipmentsellrequest', equipment.sellRequest(connection));
 
 //static directories
 app.use('/styles', express.static(path.resolve(__dirname + '/../public/styles')) );

sql/update.sql

@@ -1 +1,2 @@
-ALTER TABLE pastCombat CHANGE casualtiesVictor attackerCasualties INTEGER;
+#NOTE: ALWAYS, ALWAYS, ALWAYS write a script in revert.sql that undoes these changes
+

src/components/pages/combat_log.jsx

@@ -54,6 +54,8 @@ class CombatLog extends React.Component {
 						<p>{this.state.warning}</p>
 					</div>
 
+					<h1 className='centered'>Combat Log</h1>
+
 					<ButtonHeader />
 					<PagedCombatLog
 						setWarning={this.setWarning.bind(this)}

src/components/pages/equipment.jsx

@@ -55,11 +55,16 @@ class Equipment extends React.Component {
 						<p>{this.state.warning}</p>
 					</div>
 
+					<h1 className='centered'>Equipment</h1>
+					<p className='centered'>Equipment sells for half it's cost!</p>
+					<p className='centered'>Scientists: {this.props.scientists} - Gold: {this.props.gold}</p>
+
 					<EquipmentPanel
 						getFetch={this.getFetch.bind(this)}
 						setWarning={this.setWarning.bind(this)}
 						scientists={this.props.scientists}
 						gold={this.props.gold}
+						onSuccess={ () => this.sendRequest('/profilerequest', {username: this.props.username}) }
 					/>
 				</div>
 			</div>

src/components/panels/equipment.jsx

@@ -46,8 +46,8 @@ class Equipment extends React.Component {
 						<p className='col centered truncate'>{display[key].type}</p>
 						<p className='col centered truncate'>{display[key].owned}</p>
 						<p className='col centered truncate'>{display[key].cost}</p>
-						{display[key].purchasable ? <button className='col centered truncate' disabled={true || display[key].cost > this.props.gold}>+ Buy +</button> : <div className='col centered truncate' />}
+						{display[key].purchasable ? <button className='col centered truncate' onClick={() => this.sendRequest('/equipmentpurchaserequest', { name: display[key].name, type: display[key].type }) } disabled={display[key].cost > this.props.gold}>+ Buy +</button> : <div className='col centered truncate' />}
-						{display[key].saleable ? <button className='col centered truncate' disabled={true || display[key].owned === 0}>- Sell -</button> : <div className='col centered truncate' />}
+						{display[key].saleable ? <button className='col centered truncate' onClick={() => this.sendRequest('/equipmentsellrequest', { name: display[key].name, type: display[key].type }) } disabled={display[key].owned === 0}>- Sell -</button> : <div className='col centered truncate' />}
 					</div>)}
 				</div>
 			</div>
@@ -67,9 +67,13 @@ class Equipment extends React.Component {
 
 					//on success
 					this.setState(json);
+
+					if (this.props.onSuccess) {
+						this.props.onSuccess(json);
+					}
 				}
 				else if (xhr.status === 400 && this.props.setWarning) {
-					this.setWarning(xhr.responseText);
+					this.props.setWarning(xhr.responseText);
 				}
 			}
 		};
@@ -121,7 +125,8 @@ Equipment.propTypes = {
 	token: PropTypes.number.isRequired,
 
 	setWarning: PropTypes.func,
-	getFetch: PropTypes.func
+	getFetch: PropTypes.func,
+	onSuccess: PropTypes.func
 };
 
 const mapStoreToProps = (store) => {