From b883e87b1e5222388e6562296009a49126d3af3c Mon Sep 17 00:00:00 2001
From: Trygve Laugstøl <trygvis@inamo.no>
Date: Thu, 28 Jun 2012 12:27:39 +0200
Subject: o Initial import of application/vnd.collection+json parser code.

---
 index.js                     | 40 ++++++++++++++++++++++++++++++++++++++++
 package.json                 | 12 ++++++++++++
 test/collection_json.test.js | 39 +++++++++++++++++++++++++++++++++++++++
 3 files changed, 91 insertions(+)
 create mode 100644 index.js
 create mode 100644 package.json
 create mode 100644 test/collection_json.test.js

diff --git a/index.js b/index.js
new file mode 100644
index 0000000..5705fec
--- /dev/null
+++ b/index.js
@@ -0,0 +1,40 @@
+var _ = require('underscore');
+
+/**
+ * Takes any object and make it look like a collection+json object with utility methods.
+ */
+function fromObject(root) {
+  root = root || {};
+  var collection = root.collection || {};
+  collection.items = collection.items || {};
+  collection.links = collection.links || {};
+  collection.queries = collection.queries || {};
+  collection.templates = collection.templates || {};
+
+  collection.mapItemData = function(f) {
+    return _.map(collection.items, function(item) {
+//      console.log("item", item);
+      var map = _.reduce(item.data, function(map, field) {
+//        console.log("field", field);
+        map[field.name] = field.value;
+        return map;
+      }, {});
+//      console.log("map", map);
+      return f(map);
+    });
+  };
+
+  return collection;
+}
+module.exports.fromObject = fromObject;
+
+function fromString(s) {
+  var object = {};
+  try {
+    object = JSON.parse(s);
+  }
+  catch(ex) {
+  }
+  return fromObject(object);
+}
+module.exports.fromString = fromString;
diff --git a/package.json b/package.json
new file mode 100644
index 0000000..f14b77c
--- /dev/null
+++ b/package.json
@@ -0,0 +1,12 @@
+{
+  "name": "collection_json",
+  "version": "0.0.1",
+  "description": "application/vnd.collection+json Utility library",
+  "author": "Trygve Laugstøl <trygvis@inamo.no>",
+  "dependencies": {
+    "underscore": "latest"
+  },
+  "devDependencies": {
+    "mocha": "1.0.3"
+  }
+}
diff --git a/test/collection_json.test.js b/test/collection_json.test.js
new file mode 100644
index 0000000..b74d99b
--- /dev/null
+++ b/test/collection_json.test.js
@@ -0,0 +1,39 @@
+var assert = require('assert')
+  , collection_json = require('../');
+
+function identity(x) { return x; }
+
+var collection1 = {collection: {
+  items: [
+    { href: "http://example.com/1", links: [],
+      data: [
+        { prompt: "prompt1", name: "field-1", value: "1", baz: "woot" },
+        { prompt: "prompt2", name: "field-2", value: "2", foz: "asdf" },
+      ]
+    },
+    { href: "http://example.com/2", links: [],
+      data: [
+        { prompt: "prompt1", name: "field-1", value: "3" },
+        { prompt: "prompt2", name: "field-2", value: "4" },
+      ]
+    }
+  ]
+}};
+
+describe('fromObject', function() {
+  it('Has basic fields', function() {
+    var collection = collection_json.fromObject({});
+    assert.deepEqual([], collection.items);
+    assert.deepEqual([], collection.links);
+    assert.deepEqual([], collection.queries);
+    assert.deepEqual([], collection.templates);
+  });
+
+  it('Can map data field in items', function() {
+    assert.deepEqual(collection_json.fromObject(collection1).mapItemData(identity), 
+      [{"field-1": "1", "field-2": "2"}
+      ,{"field-1": "3", "field-2": "4"}]);
+    function f(map) { return parseInt(map["field-1"]) + parseInt(map["field-2"]); }
+    assert.deepEqual(collection_json.fromObject(collection1).mapItemData(f), [3, 7]);
+  });
+});
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