first commit

exchange/orders/order.js

@@ -0,0 +1,88 @@
+const EventEmitter = require('events');
+const _ = require('lodash');
+
+const exchangeUtils = require('../exchangeUtils');
+const bindAll = exchangeUtils.bindAll;
+const isValidOrder = exchangeUtils.isValidOrder;
+const states = require('./states');
+
+// base order
+
+class BaseOrder extends EventEmitter {
+  constructor(api) {
+    super();
+
+    this.api = api;
+
+    this.checkInterval = api.interval || 1500;
+    this.status = states.INITIALIZING;
+
+    this.completed = false;
+    this.completing = false;
+
+    bindAll(this);
+  }
+
+  submit({side, amount, price, alreadyFilled}) {
+    const check = isValidOrder({
+      market: this.market,
+      api: this.api,
+      amount,
+      price
+    });
+
+    if(!check.valid) {
+      if(alreadyFilled) {
+        // partially filled, but the remainder is too
+        // small.
+        return this.filled();
+      }
+
+      this.emit('invalidOrder', check.reason);
+      this.rejected(check.reason);
+    }
+
+    this.api[this.side](amount, this.price, this.handleCreate);
+  }
+
+  setData(data) {
+    this.data = data;
+  }
+
+  emitStatus() {
+    this.emit('statusChange', this.status);
+  }
+
+  cancelled() {
+    this.status = states.CANCELLED;
+    this.emitStatus();
+    this.completed = true;
+    this.finish();
+  }
+
+  rejected(reason) {
+    this.rejectedReason = reason;
+    this.status = states.REJECTED;
+    this.emitStatus();
+    console.log(new Date, 'sticky rejected', reason)
+    this.finish();
+  }
+
+  filled(price) {
+    this.status = states.FILLED;
+    this.emitStatus();
+    this.completed = true;
+    console.log(new Date, 'sticky filled')
+    this.finish(true);
+  }
+
+  finish(filled) {
+    this.completed = true;
+    this.emit('completed', {
+      status: this.status,
+      filled
+    })
+  }
+}
+
+module.exports = BaseOrder;