c = require './../schemas'

# TODO add these: http://docs.mongodb.org/manual/reference/operator/query/
MongoQueryOperatorSchema =
  title: 'MongoDB Query operator'
  id: 'mongoQueryOperator'
  type: 'object'
  properties:
    '$gt': type: 'number'
    '$gte': type: 'number'
    '$in': type: 'array'
    '$lt': type: 'number'
    '$lte': type: 'number'
    '$ne': type: [ 'number', 'string' ]
    '$nin': type: 'array'
  additionalProperties: true # TODO set to false when the schema's done

MongoFindQuerySchema =
  title: 'MongoDB Query'
  id: 'mongoFindQuery'
  type: 'object'
  patternProperties:
    #'^[-a-zA-Z0-9_]*$':
    '^[-a-zA-Z0-9\.]*$':
      oneOf: [
        #{ $ref: '#/definitions/' + MongoQueryOperatorSchema.id},
        { type: 'string' }
        { type: 'object' }
      ]
  additionalProperties: true # TODO make Treema accept new pattern matched keys
  definitions: {}

MongoFindQuerySchema.definitions[MongoQueryOperatorSchema.id] = MongoQueryOperatorSchema

AchievementSchema = c.object()
c.extendNamedProperties AchievementSchema
c.extendBasicProperties AchievementSchema, 'article'
c.extendSearchableProperties AchievementSchema

_.extend(AchievementSchema.properties,
  query:
    #type:'object'
    $ref: '#/definitions/' + MongoFindQuerySchema.id
  worth: { type: 'number' }
  collection: { type: 'string' }
  description: { type: 'string' }
  userField: { type: 'string' }
  related: c.objectId(description: 'Related entity')
  icon: { type: 'string', format: 'image-file', title: 'Icon' }
  proportionalTo:
    type: 'string'
    description: 'For repeatables only. Denotes the field a repeatable achievement needs for its calculations'
  function:
    type: 'object'
    oneOf: [
      linear:
        type: 'object'
        properties:
          a: {type: 'number', default: 1},
          required: ['a']
        description: 'f(x) = a * x'
      logarithmic:
        type:'object'
        properties:
          a: {type: 'number', default: 1}
          b: {type: 'number', default: 1}
        required: ['a', 'b']
        description: 'f(x) = a * ln(1/b * (x + b))'
    ]
    default: linear: a: 1
)

AchievementSchema.definitions = {}
AchievementSchema.definitions[MongoFindQuerySchema.id] = MongoFindQuerySchema

module.exports = AchievementSchema