{
    "copyright": [
        "Copyright 2013 Red Hat, Inc. and/or its affiliates.",
        "This file is part of lightblue.",
        "This program is free software: you can redistribute it and/or modify",
        "it under the terms of the GNU General Public License as published by",
        "the Free Software Foundation, either version 3 of the License, or",
        "(at your option) any later version.",
        "This program is distributed in the hope that it will be useful,",
        "but WITHOUT ANY WARRANTY; without even the implied warranty of",
        "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the",
        "GNU General Public License for more details.",
        "You should have received a copy of the GNU General Public License",
        "along with this program.  If not, see <http://www.gnu.org/licenses/>."],
    "$schema": "http://json-schema.org/draft-04/schema#",
    "type": "object",
     "allOf": [
         {
             "$ref": "/json-schema/crudCommon.json#/definitions/common"
         }
     ],
     "additionalProperties": false,
     "properties": {
         "client": {
         },
         "entity": {
         },
         "entityVersion": {
         },
         "execution": {
         },
         "projection": {
         },
         "query": {
             "$ref": "/json-schema/crudCommon.json#/definitions/query",
             "description": "Query expression that identifies docs to update"
         },
         "update": {
             "oneOf": [
                 {
                     "$ref": "#/definitions/updateChoice"
                 },
                 {
                     "type": "array",
                     "items": {
                         "$ref": "#/definitions/updateChoice"
                     }
                 }
             ]
         },
         "onlyIfCurrent":{
             "type":"boolean",
             "description":"If true, perform the operation only if document version is unchanged"
         },
         "documentVersions":{
             "type":"array",
             "items":{
                 "type":"string"
             }
         }
     },
     "required": [
         "query",
         "update"
     ],
    "definitions": {
        "updateChoice": {
            "oneOf": [
                {
                    "properties": {
                        "$set": {
                            "$ref": "#/definitions/updateFieldSet"
                        }
                    },
                    "additionalProperties": false
                },
                {
                    "properties": {
                        "$unset": {
                            "$ref": "#/definitions/updateFieldUnset"
                        }
                    },
                    "additionalProperties": false
                },
                {
                    "properties": {
                        "$add": {
                            "$ref": "#/definitions/updateFieldAdd"
                        }
                    },
                    "additionalProperties": false
                },
                {
                    "properties": {
                        "$append": {
                            "$ref": "#/definitions/updateArrayAppend"
                        }
                    },
                    "additionalProperties": false
                },
                {
                    "properties": {
                        "$insert": {
                            "$ref": "#/definitions/updateArrayInsert"
                        }
                    },
                    "additionalProperties": false
                },
                {
                    "properties": {
                        "$foreach": {
                            "$ref": "#/definitions/updateArrayForEach"
                        }
                    },
                    "additionalProperties": false
                }
            ]
        },
        "updateFieldSet": {
            "type": "object",
            "description": "Attribute name is field to set, value is the new value to assign.",
            "additionalProperties": true
        },
        "updateFieldUnset": {
            "oneOf" : [
                {
                   "type": "array",
                   "description": "Name of fields to unset",
                   "minItems": 1,
                   "items": [
                       {
                          "type": "string"
                       }
                   ]
                },
                {
                   "type": "string"
                }
            ]
        },
        "updateFieldAdd": {
            "type": "object",
            "description": "Attribute name is field to modify, value is a $valueof expression.",
            "additionalProperties": true
        },
        "updateArrayAppend": {
            "type": "object",
            "description": "Appends given values to the field (attribute name).  Values are added at the end of the array.  Doesn't check for uniqueness before adding.",
            "patternProperties": {
                ".*": {
                    "oneOf": [
                        {
                            "type": "string"
                        },
                        {
                            "type": "array",
                            "items": {
                                "type": "string"
                            }
                        }
                    ]
                }
            },
            "additionalProperties": false
        },
        "updateArrayInsert": {
            "type": "object",
            "description": "Inserts given values to the field (attribute name).  Values are added to the index as given in the field names,  Doesn't check for uniqueness before adding.",
            "patternProperties": {
                ".*": {
                    "oneOf": [
                        {
                            "type": "string"
                        },
                        {
                            "type": "array",
                            "items": {
                                "type": "string"
                            }
                        }
                    ]
                }
            },
            "additionalProperties": false
        },
        "updateArrayForEach": {
            "type": "object",
            "description": "Iterates over array elements, checking for elements matching a query, and operating on them",
            "properties" : {
               "$update": {
                   "oneOf" : [ 
                      {
                         "type":"string"
                      },
                      {
                         "$ref": "#/definitions/updateChoice"
                      },
                      {
                         "type": "array",
                         "items": {
                              "$ref": "#/definitions/updateChoice"
                          }
                      }
                   ]
               }
            },
            "additionalProperties": { 
               "$ref": "/json-schema/crudCommon.json#/definitions/query"
            }
        }
    }
}