angular.module('SessionsServ', []).service('SessionService', ['$http',
      function ($http) {
          a = {

              nom: "Invité",

              logged: false,
              status: 0,
              changeHandlers: [],
              onChange: function (fun) {
                  this.changeHandlers.push(fun)
              },
              triggerChange: function () {
                  for (fun in this.changeHandlers) {
                      this.changeHandlers[fun]()
                  }
              },
              updateSessionInfos: function (data) {
                  if (typeof data === 'object') {
                      console.log("Connected")
                      this.logged = true

                      this.nom = data.nom

                  } else {
  
                      this.logged = false
                  }
                  this.triggerChange()
              },
              get: function (cb) { // Fetch infos if needed
                  console.log("Session: get")
                  if (status == 0) {
                      this.status = 1 // Fetching
                      _this = this
                      // TODO Verify if cookies to prevent uneeded request
                      $http.get('/api/session').success(function (body) {
                          _this.updateSessionInfos(body)
                          if (cb) {
                              if (this.logged) {
                                  cb(null)
                              } else {
                                  cb(body)
                              }
                          }
                      })
                  } else {
                      console.warn("get multiple times")
                  }
              },
              connect: function (login, pass, cb) {
                  console.log("Session: connecting with login:", login)
                  _this = this
                  $http.post('/api/session', {
                      login: login,
                      pass: pass
                  }).success(function (body) {
                      _this.updateSessionInfos(body)
                      if (cb) {
                          if (this.logged) {
                              cb(null)
                          } else {
                              cb(body)
                          }
                      }
                  })
              },
              disconnect: function () {
                  console.log("Session: disconnect", this.name)
                  $http.delete('/api/session')
                  this.logged = false
              }

          }

          a.get()
          return a

      }

  ])