/**
 * Module dependencies
 */

var mongoose = require('mongoose')
  , Schema = mongoose.Schema;

var ProjectSchema = new Schema({
    user: { type: Schema.ObjectId, ref: 'User' },
    name: { type: String, default: '', trim: true },
    description: {type: String, default: '', trim: true },
    currency: { type: String, default: 'kr', trim: true },
    public: { type: String, default: 'invite-only' },
    created: { type: Date, default: Date.now },
    updated: { type: Date, default: Date.now },
    shortURL: { type: String, unique: true }
});

// the four validations below only apply if you are signing up traditionally

ProjectSchema.path('name').validate(function(name) {
    // if you're authenticated by any of the oauth strategies (facebook, twitter), don't validate
    return name.length;
}, 'Project name cannot be blank');


ProjectSchema.pre('save', function(next) {
    if (this.shortURL !== undefined) return next();
    var chars = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890";
    this.shortURL = '';
    for (var i = 0; i < 6; i++) {
        var x = Math.floor(Math.random() * chars.length);
        this.shortURL += chars.charAt(x);
    }
    console.log('SHORT: ' + this.shortURL);
    next();
});



ProjectSchema.statics = {

   /**
    * Find project by id
    *
    * @param {ObjectId} id
    * @param {Function} callback
    * @api private
    */

    load: function(id, callback) {
        this.findOne({ _id: id })
          .populate('user')
          .exec(callback);
    },


   /**
    * Find project my shortURL
    *
    * @param {shortURL} shortURL
    * @param {Function} callback
    * @api private
    */

    loadShort : function(shortURL, callback) {
        this.findOne({ shortURL: shortURL })
          .populate('user')
          .exec(callback);
    }

}

mongoose.model('Project', ProjectSchema);