Add eventlog model file

src/eventlog.js

@@ -0,0 +1,72 @@
+'use strict';
+
+exports = module.exports = {
+    EventLogError: EventLogError,
+
+    add: add,
+    get: get,
+    getAllPaged: getAllPaged
+};
+
+var assert = require('assert'),
+    DatabaseError = require('./databaseerror.js'),
+    eventlogdb = require('./eventlogdb.js'),
+    util = require('util'),
+    uuid = require('node-uuid');
+
+function EventLogError(reason, errorOrMessage) {
+    assert.strictEqual(typeof reason, 'string');
+    assert(errorOrMessage instanceof Error || typeof errorOrMessage === 'string' || typeof errorOrMessage === 'undefined');
+
+    Error.call(this);
+    Error.captureStackTrace(this, this.constructor);
+
+    this.name = this.constructor.name;
+    this.reason = reason;
+    if (typeof errorOrMessage === 'undefined') {
+        this.message = reason;
+    } else if (typeof errorOrMessage === 'string') {
+        this.message = errorOrMessage;
+    } else {
+        this.message = 'Internal error';
+        this.nestedError = errorOrMessage;
+    }
+}
+util.inherits(EventLogError, Error);
+EventLogError.INTERNAL_ERROR = 'Internal error';
+
+function add(action, data, callback) {
+    assert.strictEqual(typeof action, 'string');
+    assert.strictEqual(typeof data, 'object');
+    assert.strictEqual(typeof callback, 'function');
+
+    eventlogdb.add(uuid.v4(), action, data, function (error) {
+        if (error) return callback(new EventLogError(EventLogError.INTERNAL_ERROR, error));
+
+        callback();
+    });
+}
+
+function get(id, callback) {
+    assert.strictEqual(typeof id, 'string');
+    assert.strictEqual(typeof callback, 'function');
+
+    eventlogdb.get(id, function (error, result) {
+        if (error && error.reason === DatabaseError.NOT_FOUND) return callback(new EventLogError(EventLogError.NOT_FOUND, 'No such box'));
+        if (error) return callback(new EventLogError(EventLogError.INTERNAL_ERROR, error));
+
+        callback(null, result);
+    });
+}
+
+function getAllPaged(page, perPage, callback) {
+    assert.strictEqual(typeof page, 'number');
+    assert.strictEqual(typeof perPage, 'number');
+    assert.strictEqual(typeof callback, 'function');
+
+    eventlogdb.getAllPaged(page, perPage, function (error, boxes) {
+        if (error) return callback(new EventLogError(EventLogError.INTERNAL_ERROR, error));
+
+        callback(null, boxes);
+    });
+}