some progress

node_modules/mquery/lib/collection/collection.js

@@ -0,0 +1,45 @@
+'use strict';
+
+/**
+ * methods a collection must implement
+ */
+
+const methods = [
+  'find',
+  'findOne',
+  'updateMany',
+  'updateOne',
+  'replaceOne',
+  'count',
+  'distinct',
+  'findOneAndDelete',
+  'findOneAndUpdate',
+  'aggregate',
+  'findCursor',
+  'deleteOne',
+  'deleteMany'
+];
+
+/**
+ * Collection base class from which implementations inherit
+ */
+
+function Collection() {}
+
+for (let i = 0, len = methods.length; i < len; ++i) {
+  const method = methods[i];
+  Collection.prototype[method] = notImplemented(method);
+}
+
+module.exports = exports = Collection;
+Collection.methods = methods;
+
+/**
+ * creates a function which throws an implementation error
+ */
+
+function notImplemented(method) {
+  return function() {
+    throw new Error('collection.' + method + ' not implemented');
+  };
+}

node_modules/mquery/lib/collection/index.js

@@ -0,0 +1,13 @@
+'use strict';
+
+const env = require('../env');
+
+if ('unknown' == env.type) {
+  throw new Error('Unknown environment');
+}
+
+module.exports =
+  env.isNode ? require('./node') :
+    env.isMongo ? require('./collection') :
+      require('./collection');
+

node_modules/mquery/lib/collection/node.js

@@ -0,0 +1,114 @@
+'use strict';
+
+/**
+ * Module dependencies
+ */
+
+const Collection = require('./collection');
+
+class NodeCollection extends Collection {
+  constructor(col) {
+    super();
+
+    this.collection = col;
+    this.collectionName = col.collectionName;
+  }
+
+  /**
+   * find(match, options)
+   */
+  async find(match, options) {
+    const cursor = this.collection.find(match, options);
+
+    return cursor.toArray();
+  }
+
+  /**
+   * findOne(match, options)
+   */
+  async findOne(match, options) {
+    return this.collection.findOne(match, options);
+  }
+
+  /**
+   * count(match, options)
+   */
+  async count(match, options) {
+    return this.collection.count(match, options);
+  }
+
+  /**
+   * distinct(prop, match, options)
+   */
+  async distinct(prop, match, options) {
+    return this.collection.distinct(prop, match, options);
+  }
+
+  /**
+   * updateMany(match, update, options)
+   */
+  async updateMany(match, update, options) {
+    return this.collection.updateMany(match, update, options);
+  }
+
+  /**
+   * updateOne(match, update, options)
+   */
+  async updateOne(match, update, options) {
+    return this.collection.updateOne(match, update, options);
+  }
+
+  /**
+   * replaceOne(match, update, options)
+   */
+  async replaceOne(match, update, options) {
+    return this.collection.replaceOne(match, update, options);
+  }
+
+  /**
+   * deleteOne(match, options)
+   */
+  async deleteOne(match, options) {
+    return this.collection.deleteOne(match, options);
+  }
+
+  /**
+   * deleteMany(match, options)
+   */
+  async deleteMany(match, options) {
+    return this.collection.deleteMany(match, options);
+  }
+
+  /**
+   * findOneAndDelete(match, options, function(err[, result])
+   */
+  async findOneAndDelete(match, options) {
+    return this.collection.findOneAndDelete(match, options);
+  }
+
+  /**
+   * findOneAndUpdate(match, update, options)
+   */
+  async findOneAndUpdate(match, update, options) {
+    return this.collection.findOneAndUpdate(match, update, options);
+  }
+
+  /**
+   * var cursor = findCursor(match, options)
+   */
+  findCursor(match, options) {
+    return this.collection.find(match, options);
+  }
+
+  /**
+   * aggregation(operators...)
+   * TODO
+   */
+}
+
+
+/**
+ * Expose
+ */
+
+module.exports = exports = NodeCollection;