From 3bec0b8c089c54859882ee8bf1cb16467ec13404 Mon Sep 17 00:00:00 2001
From: Mark Stenglein <mark@gmu.edu>
Date: Fri, 30 Dec 2016 01:11:25 -0500
Subject: [PATCH] Add the majority of the scaffolding to get the class data out
 to the ical builder   - next step is to actually write the ical generator
 :dancing_penguin:   - I'm committing this through WebStorm's UI to try it out
 so I've no idea what could go wrong....just a heads up

---
 package.json     |  5 +++
 routes/api/v1.js | 91 ++++++++++++++++++++++++++++++++++++++++++------
 2 files changed, 85 insertions(+), 11 deletions(-)

diff --git a/package.json b/package.json
index 293e769..2b1c241 100644
--- a/package.json
+++ b/package.json
@@ -40,6 +40,11 @@
   },
   "devDependencies": {
     "chai": "^3.5.0",
+    "eslint-config-standard": "^6.2.1",
+    "eslint-config-standard-jsx": "^3.2.0",
+    "eslint-plugin-promise": "^3.4.0",
+    "eslint-plugin-react": "^6.8.0",
+    "eslint-plugin-standard": "^2.0.1",
     "husky": "^0.11.9",
     "lint-staged": "^3.2.1",
     "mocha": "^3.0.2",
diff --git a/routes/api/v1.js b/routes/api/v1.js
index 1525829..565a970 100644
--- a/routes/api/v1.js
+++ b/routes/api/v1.js
@@ -66,21 +66,90 @@ router.get('/json/classes/crn/:CRN', function (req, res, next) {
 
 // ////////////////////////////////////////////////////////////////////////////
 // ICAL API Section
-router.get('/ical/:SCHOOL/:SEMSLUG/:CLASSES', function (req, res, next) {
-/*
+router.get('/ical/:SCHOOL/:SEMSLUG/:SECTIONS', function (req, res, next) {
+
+  // Extract arguments and setup empty objects for them
+
+  //   Get School Information
   var schoolSlug = req.params['SCHOOL']
+  var school = db.University
+    .findOne({
+      'attributes': ['slug', 'name', 'website'],
+      'where': {
+        'slug': schoolSlug
+      }
+    })
+
+  //  Get Semester Information
   var semSlug = req.params['SEMSLUG']
-  var classes = req.params['CLASSES']
-*/
-  // Generate blank calendar
-  var cal = ical({domain: 'schedules.gmu.edu', name: 'SRCT Schedules Generated Calendar'})
-
-  res.set({
-    'Content-Type': 'text/calendar; charset=utf-8',
-    'Content-Disposition': 'attachment; filename="' + ('calendar.ics') + '"'
+  var semester = db.Semester
+    .findOne({
+      'attributes': ['slug', 'name', 'university'],
+      'where': {
+        'slug': semSlug
+      }
+    })
+
+  //  Get Section Information
+  var sectionArgs = req.params['SECTIONS']
+  var semesterSlugs = []
+
+  //  Parse Section Args
+  sectionArgs.split(',').forEach(function (sectionArg) {
+    semesterSlugs.push(db.sequelize.escape(sectionArg))
   })
 
-  res.send(cal.toString())
+  var sections = db.Section
+    .findAll({
+      'where': {
+        'semester': semSlug,
+        'crn': {
+          $in: semesterSlugs
+        }
+      }
+    })
+
+  var makeCalendar = function(school, semester, sections) {
+    // Generate blank calendar
+    var cal = ical(
+      {
+        domain: 'schedules.gmu.edu',
+        prodId: '//Student Run Computing and Technology//Schedules//EN',
+        name: school.get('slug') + ' Class Schedule Fall 2016'
+      }
+    )
+
+    return cal
+  }
+
+  // Wait for all the queries to finish
+  Promise
+    .all(
+      [school, semester, sections]
+    ).then(function (queries) {
+      // Check for invalid responses and throw appropriate errors
+      if (!queries[0]) {
+        throw 'Invalid School Given!'
+      }
+      if (!queries[1]) {
+        throw 'Invalid Semester Given'
+      }
+
+      // Generate the calendar
+      var semesterCalendar = makeCalendar(queries[0], queries[1], queries[2])
+
+      res.set({
+        'Content-Type': 'text/calendar; charset=utf-8',
+        'Content-Disposition': 'attachment; filename="' + ('calendar.ics') + '"'
+      })
+
+      res.send(semesterCalendar.toString())
+    })
+    // Catch any errors and respond with grace
+    .catch(function (error) {
+      console.log(error)
+      res.send(error)
+    })
 })
 
 module.exports = router
-- 
2.26.2