unserver-unify/src/app/course/doc.controller.js

'use strict';
angular.module('bamboo.course').controller('CourseDocCtrl', function($scope, ApiService, loginService, CourseApi, $stateParams, $uibModal, $timeout, $window, CommonService) {
  this.id = $stateParams.id;
  this.cid = $stateParams.cid;
  this.mvsubject = {};
  var downloadNumbers = [];
  $scope.tabs = 'doc';
  var _self = this;
  this.contentModelPicUrl = ApiService.SHOST + '/lcourse/' + _self.cid + '/download/';

  function getInfo() {
    $scope.id = _self.id;
    CourseApi.getInfo(_self.id, function(result) {
      _self.mvsubject = result;
      $scope.docs = _self.mvsubject.docs;
      console.log($scope.docs);
      processDocs($scope.docs);
    });
  }

  function processDocs(docs) {
    angular.forEach(docs, function(val, idx) {
      if(val.timecontrol) {
        var start = new Date(val.starttime).getTime();
        var end = new Date(val.endtime).getTime();
        var now = Date.now();
        if (now >= start && now <= end && val.availableForDL) {
          val.availableForDL = true;
        } else {
          val.availableForDL = false;
        }
      }
    });
  }
  this.className = {
    pdf: "service-block-red",
    doc: "service-block-dark",
    ppt: "service-block-u",
    xls: "service-block-blue",
    mp3: "service-block-sea",
    mp4: "service-block-yellow",
  };
  this.colorName = {
    pdf: "icon-color-red",
    doc: "icon-color-purple",
    ppt: "icon-color-orange",
    xls: "icon-color-brown",
    mp3: "icon-color-darkblue",
    mp4: "icon-color-sea",
    zip: "icon-color-blue"
  };
  this.titleName = {
    pdf: "PDF",
    doc: "Word",
    ppt: "PPT",
    xls: "Excel",
    mp3: "Audio",
    mp4: "Video",
    zip: "Zip"
  };
  this.iconName = {
    pdf: "fa-file-pdf-o",
    doc: "fa-file-word-o",
    ppt: "fa-file-powerpoint-o",
    xls: "fa-file-excel-o",
    mp3: "fa-music",
    mp4: "fa-video-camera",
    zip: "fa fa-file-archive-o"
  };
  getInfo();
  $scope.onDownload = function(index) {
    var exist = false;
    if (downloadNumbers.indexOf(index) < 0) {
      downloadNumbers.push(index);
    }
  };
  $scope.$on("$destroy", function() {
    if (!downloadNumbers || downloadNumbers.length < 1) {
      return;
    }
    if (loginService.user) {
      var info = {
        action: "recorddownloads",
        records: downloadNumbers,
        id: _self.id,
      };
      CourseApi.mvApi(info, function(data) {
        console.log(data);
      });
    } else {
      console.log("aleady logout!");
    }
  })
  // controller function to open a modal to play MP4
  this.viewMp4 = function(mp4file) {
    $uibModal.open({
      templateUrl: 'app/course/download/mp4-dlg.html',
      size: 'lg',
      controller: 'Mp4DlgCtrl',
      controllerAs: 'ctrl',
      backdrop: 'static',
      resolve: {
        // send mp4 file url to dlg controller
        mp4url: function() {
          return (_self.contentModelPicUrl + mp4file);
        }
      }
    }).result.then(function() {})
  }

  this.onCheckBoxSelected = function() {
    if (_self.selectALL) {
      $scope.docs.forEach(function(item) {
        item.checked = true;
      });
    } else {
      $scope.docs.forEach(function(item) {
        item.checked = false;
      });
    }
  }

  function urlToPromise(url) 
  {
      return new Promise(function(resolve, reject) 
      {
          JSZipUtils.getBinaryContent(url, function (err, data) 
          {
              if(err) 
              {
                  reject(err);
              } else {
                  resolve(data);
              }
          });
      });
  }

  this.bulkDownload = function(){
    // $scope.docs.forEach(function(item) {
    //   if (item.checked&&item.download) {
    //     $timeout(function () {
    //       console.log(item);
    //       $window.open(item.download, '_blank');
    //     },500);
    //   }
    // });
    if(ApiService.MEDIAPATH) {
        _self.contentModelPicUrl = ApiService.MEDIAPATH + '/lcourse/' + _self.cid + '/download/';
    }
    var zip = new JSZip();
    var zipFilename = "meterials.zip";
    var download = false;
    $scope.docs.forEach(function(item) {
      if (item.checked&&item.des&&item.availableForDL) {
        var url = _self.contentModelPicUrl+item.file;
        zip.file(item.des, urlToPromise(url), {binary:true});
        download = true;
      }
    });

    if(download) {
      zip.generateAsync({type:'blob'}).then(function(content) {
        saveAs(content, zipFilename);
      }); 
    } else {
      CommonService.showError('Please select to download');
    }
  }

});