[WIP] feat: Add support to update score of all batch members.

scripts/batch-score.coffee

@@ -16,11 +16,94 @@ util = require('./util')
 
 module.exports = (robot) ->
 
+  # returns list of skipped words
+  skippedlist = () ->
+    List = robot.brain.get("skippedlist") or []
+    robot.brain.set("skippedlist", List)
+    List
+
+  # return object to store data for all keywords
+  # using this, stores the data in brain's "scorefield" key
   scorefield = () ->
     Field = robot.brain.get("scorefield") or {}
     robot.brain.set("scorefield", Field)
     Field
 
+  detailedfield = () ->
+    Field = robot.brain.get("detailedfield") or {}
+    robot.brain.set("detailedfield", Field)
+    Field
+  # returns last score
+  lastScore = (name, field) ->
+    name = name.toLowerCase()
+    lastscore = field[name] or 0
+    lastscore
+
+  #returns appreciation field associated to a single user
+  userFieldMinus = (user) ->
+    Detailedfield = detailedfield()
+    Detailedfield[user] = Detailedfield[user] or {}
+    Detailedfield[user]["minus"] = Detailedfield[user]["minus"] or {}
+    Detailedfield[user]["minus"]
+
+  #returns depreciation field associated to a single user
+  userFieldPlus = (user) ->
+    Detailedfield = detailedfield()
+    Detailedfield[user] = Detailedfield[user] or {}
+    Detailedfield[user]["plus"] = Detailedfield[user]["plus"] or {}
+    Detailedfield[user]["plus"]
+
+  #updates detailed field
+  updateDetailedScore = (field, sendername, fieldtype) ->
+    if(fieldtype == "plus")
+      field[sendername] = field[sendername] + 1 or 1
+    else
+      field[sendername] = field[sendername] + 1 or 1
+
+  ###*
+  # updates score of whole batch according to ++/--
+  # @param {number} year: Year of the batch whose score is to be updated
+  # @param {string} type: '++' for increasing score and '--' for decreasing score
+  # @param {object} field: The scorefield object which needs to be updated
+  # @param {string} username: Slack-Id of the user who triggered the event
+  # @return {object}: Tells about the status of score change and number of people whose score has changed
+  ###
+  updateBatchScore = (year, type, field, username) ->
+    same = false;
+    batch_exists = true;
+    util.info (body) ->
+      result = []
+      result = parse body
+      member result, year, (slackId) ->
+        if slackId.length==0
+          batch_exists = false;
+        for i in [0..slackId.length]
+          if username.toLowerCase() == slackId.toLowerCase()
+            same = true;
+        if same
+          response = "-1"
+          length = 0
+        else if !batch_exists
+          response = "0"
+          length = 0
+        else if type == "++"
+          response = responses[Math.floor(Math.random() * 7)]
+          length = slackId.length
+          for i in [0..slackId.length]
+            field[slackId.toLowerCase()] = lastScore(slackId, field) + 1
+            userfield = userFieldPlus(slackId.toLowerCase())
+            updateDetailedScore(userfield, username, "plus")
+        else if type == "--"
+          response = "ouch!"
+          length = slackId.length
+          for i in [0..slackId.length]
+            field[slackId.toLowerCase()] = lastScore(slackId, field) - 1
+            userfield = userFieldMinus(slackId.toLowerCase())
+            updateDetailedScore(userfield, username, "minus")
+
+    Response : response
+    Length : length
+
   stringLength = (str) ->
     return String(str).split('').length
 
@@ -78,6 +161,69 @@ module.exports = (robot) ->
               user_name.push user[0]
     callback [user_name, slackId]
 
+  robot.hear /f(\d\d)+(\-\-|\+\+)/gi, (msg) ->
+
+    # message for score update that bot will return
+    oldmsg = msg.message.text
+
+    # data-store object
+    ScoreField = scorefield()
+
+    # skipped word list
+    SkippedList = skippedlist()
+
+    # index keeping an eye on position, where next replace will be
+    start = 0
+    end = 0
+
+    # reply only when there exist altest one testword which
+    # is neither skipped nor its length greater than 30
+    reply = false
+
+    # obtaining the current date to calculate relative_year
+    today = new Date
+    mm = today.getMonth() + 1
+    yyyy = today.getFullYear()
+    yy = yyyy % 100
+    if mm < 7
+      relative_year = yy
+    else
+      relative_year = yy + 1
+
+    for i in [0...msg.match.length]
+      testword = msg.match[i]
+
+      end = start + testword.length
+
+      if testword.slice(0, -2) in SkippedList or testword.length > 30
+          newmsg = ""
+      else
+         reply = true
+
+         # <batch> whose score is to be shown
+         batch = testword.slice(1,-2)
+         year = relative_year - batch
+
+         # ++ or --
+         type = testword.slice(-2)
+
+         result = updateBatchScore(year,type,ScoreField,msg.message.user.name)
+
+         if result.Response == "-1"
+           newmsg = "#{testword} [Sorry, You can't give ++ or -- to your own batch.] "
+         else if result.Response == "0"
+           newmsg = "f#{year}? I don't know anyone from this year."
+         else
+           newmsg = "#{testword} [#{result.Response} Gave #{type} to #{result.Length} people from year 20#{year}] "
+
+      oldmsg = oldmsg.substr(0, start) + newmsg + oldmsg.substr(end + 1)
+      start += newmsg.length
+
+    if reply
+        # reply with updated message
+        msg.send "#{oldmsg}"
+
+
   robot.respond /score f(\d\d)( \-\w)?/i, (msg) ->
 
     ScoreField = scorefield()