'use strict';

/**
 * Module dependencies.
 */
var mongoose = require('mongoose'),
    Schema = mongoose.Schema;

/**
 * Tracking Schema
 */
var TrackingSchema = new Schema({
  name: {
    type: String,
    default: '',
    required: 'Please fill Tracking name',
    trim: true
  },
  activity: {      // Attempts information
    active: {                   // Indicates that an attempt is currently in progress for the activity.
      type: Boolean,
      default: false
    },
    suspended: {                // Indicates that activity is currently suspended.
      type: Boolean,
      default: false
    },
    /* availableChildren: {        // Indicates attempt progress information is meaningful.
      type: Boolean,
      default: false
    } */
    progressStatus: {           // Indicates attempt progress information is meaningful.
      type: Boolean,
      default: false
    },
    absoluteDuration: {         // Cumulative duration of all attempts on the activity. Unrealiable unless progressStatus is True.
      type: Number,
      default: 0
    },
    experiencedDuration: {      // Cumulative experienced duration of all attempts on the activity. No include suspend time. Unreliable unless progressStatus is True.
      type: Number,
      default: 0
    },
    attemptCount: {           // Number of attempts on the activity. Unreliable unless progressStatus is True.
      type: Number,
      default: 0
    }
  },
  attempts: [     // Indicate learner's progress on an activity. Describes per attempt progress on activity.
    {
      progressStatus: {       // Indicates attempt progress information is meaningful. Unrealiable unless activity.progressStatus > 0.
        type: Boolean,
        default: false
      },
      completionAmount: {     // Measure of completion of the attempt on the activity (normalized [Not complete] 0..1 [Complete]). Unreliable unless progressStatus is True.
        type: Number,
        default: 0
      },
      completionStatus: {     // Indicates the attempt is completed. Unreliable unless progressStatus is True.
        type: Boolean,
        default: false
      },
      absoluteDuration: {
        type: Number,         // Duration of attempt.
        default: 0
      },
      experiencedDuration: {  // Duration of attempt (no include elapsed time while the activity attempt is suspendend.
        type: Number,
        default: 0
      }
    }
  ],
  objectives: [   // Indicate learner's progress related to learning objective.
    {
      progressStatus: {     // Indicates that objective currently has a 'satisfaction' value.
        type: Boolean,
        default: false
      },
      satisfiedStatus: {    // Indicates that objective is 'satisfied'. Valid only if 'progressStatus' = true.
        type: Boolean,
        default: false
      },
      measureStatus: {      // Indicates that objective has a 'measure' value.
        type: Boolean,
        default: false
      },
      normalizedMeasure: {  // Measure for the objective. Valid only if 'measureStatus'=true.
        type: Number,
        default: 0.0
      }
    }
  ],
  created: {
    type: Date,
    default: Date.now
  },
  user: {
    type: Schema.ObjectId,
    ref: 'User'
  }
});

mongoose.model('Tracking', TrackingSchema);