/*
Copyright 2019 The Kubernetes Authors.

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/

package v1

// JSONSchemaProps is a JSON-Schema following Specification Draft 4 (http://json-schema.org/).
type JSONSchemaProps struct {
	ID          string        `json:"id,omitempty" protobuf:"bytes,1,opt,name=id"`
	Schema      JSONSchemaURL `json:"$schema,omitempty" protobuf:"bytes,2,opt,name=schema"`
	Ref         *string       `json:"$ref,omitempty" protobuf:"bytes,3,opt,name=ref"`
	Description string        `json:"description,omitempty" protobuf:"bytes,4,opt,name=description"`
	Type        string        `json:"type,omitempty" protobuf:"bytes,5,opt,name=type"`

	// format is an OpenAPI v3 format string. Unknown formats are ignored. The following formats are validated:
	//
	// - bsonobjectid: a bson object ID, i.e. a 24 characters hex string
	// - uri: an URI as parsed by Golang net/url.ParseRequestURI
	// - email: an email address as parsed by Golang net/mail.ParseAddress
	// - hostname: a valid representation for an Internet host name, as defined by RFC 1034, section 3.1 [RFC1034].
	// - ipv4: an IPv4 IP as parsed by Golang net.ParseIP
	// - ipv6: an IPv6 IP as parsed by Golang net.ParseIP
	// - cidr: a CIDR as parsed by Golang net.ParseCIDR
	// - mac: a MAC address as parsed by Golang net.ParseMAC
	// - uuid: an UUID that allows uppercase defined by the regex (?i)^[0-9a-f]{8}-?[0-9a-f]{4}-?[0-9a-f]{4}-?[0-9a-f]{4}-?[0-9a-f]{12}$
	// - uuid3: an UUID3 that allows uppercase defined by the regex (?i)^[0-9a-f]{8}-?[0-9a-f]{4}-?3[0-9a-f]{3}-?[0-9a-f]{4}-?[0-9a-f]{12}$
	// - uuid4: an UUID4 that allows uppercase defined by the regex (?i)^[0-9a-f]{8}-?[0-9a-f]{4}-?4[0-9a-f]{3}-?[89ab][0-9a-f]{3}-?[0-9a-f]{12}$
	// - uuid5: an UUID5 that allows uppercase defined by the regex (?i)^[0-9a-f]{8}-?[0-9a-f]{4}-?5[0-9a-f]{3}-?[89ab][0-9a-f]{3}-?[0-9a-f]{12}$
	// - isbn: an ISBN10 or ISBN13 number string like "0321751043" or "978-0321751041"
	// - isbn10: an ISBN10 number string like "0321751043"
	// - isbn13: an ISBN13 number string like "978-0321751041"
	// - creditcard: a credit card number defined by the regex ^(?:4[0-9]{12}(?:[0-9]{3})?|5[1-5][0-9]{14}|6(?:011|5[0-9][0-9])[0-9]{12}|3[47][0-9]{13}|3(?:0[0-5]|[68][0-9])[0-9]{11}|(?:2131|1800|35\\d{3})\\d{11})$ with any non digit characters mixed in
	// - ssn: a U.S. social security number following the regex ^\\d{3}[- ]?\\d{2}[- ]?\\d{4}$
	// - hexcolor: an hexadecimal color code like "#FFFFFF: following the regex ^#?([0-9a-fA-F]{3}|[0-9a-fA-F]{6})$
	// - rgbcolor: an RGB color code like rgb like "rgb(255,255,2559"
	// - byte: base64 encoded binary data
	// - password: any kind of string
	// - date: a date string like "2006-01-02" as defined by full-date in RFC3339
	// - duration: a duration string like "22 ns" as parsed by Golang time.ParseDuration or compatible with Scala duration format
	// - datetime: a date time string like "2014-12-15T19:30:20.000Z" as defined by date-time in RFC3339.
	Format string `json:"format,omitempty" protobuf:"bytes,6,opt,name=format"`

	Title string `json:"title,omitempty" protobuf:"bytes,7,opt,name=title"`
	// default is a default value for undefined object fields.
	// Defaulting is a beta feature under the CustomResourceDefaulting feature gate.
	// Defaulting requires spec.preserveUnknownFields to be false.
	Default              *JSON                      `json:"default,omitempty" protobuf:"bytes,8,opt,name=default"`
	Maximum              *float64                   `json:"maximum,omitempty" protobuf:"bytes,9,opt,name=maximum"`
	ExclusiveMaximum     bool                       `json:"exclusiveMaximum,omitempty" protobuf:"bytes,10,opt,name=exclusiveMaximum"`
	Minimum              *float64                   `json:"minimum,omitempty" protobuf:"bytes,11,opt,name=minimum"`
	ExclusiveMinimum     bool                       `json:"exclusiveMinimum,omitempty" protobuf:"bytes,12,opt,name=exclusiveMinimum"`
	MaxLength            *int64                     `json:"maxLength,omitempty" protobuf:"bytes,13,opt,name=maxLength"`
	MinLength            *int64                     `json:"minLength,omitempty" protobuf:"bytes,14,opt,name=minLength"`
	Pattern              string                     `json:"pattern,omitempty" protobuf:"bytes,15,opt,name=pattern"`
	MaxItems             *int64                     `json:"maxItems,omitempty" protobuf:"bytes,16,opt,name=maxItems"`
	MinItems             *int64                     `json:"minItems,omitempty" protobuf:"bytes,17,opt,name=minItems"`
	UniqueItems          bool                       `json:"uniqueItems,omitempty" protobuf:"bytes,18,opt,name=uniqueItems"`
	MultipleOf           *float64                   `json:"multipleOf,omitempty" protobuf:"bytes,19,opt,name=multipleOf"`
	Enum                 []JSON                     `json:"enum,omitempty" protobuf:"bytes,20,rep,name=enum"`
	MaxProperties        *int64                     `json:"maxProperties,omitempty" protobuf:"bytes,21,opt,name=maxProperties"`
	MinProperties        *int64                     `json:"minProperties,omitempty" protobuf:"bytes,22,opt,name=minProperties"`
	Required             []string                   `json:"required,omitempty" protobuf:"bytes,23,rep,name=required"`
	Items                *JSONSchemaPropsOrArray    `json:"items,omitempty" protobuf:"bytes,24,opt,name=items"`
	AllOf                []JSONSchemaProps          `json:"allOf,omitempty" protobuf:"bytes,25,rep,name=allOf"`
	OneOf                []JSONSchemaProps          `json:"oneOf,omitempty" protobuf:"bytes,26,rep,name=oneOf"`
	AnyOf                []JSONSchemaProps          `json:"anyOf,omitempty" protobuf:"bytes,27,rep,name=anyOf"`
	Not                  *JSONSchemaProps           `json:"not,omitempty" protobuf:"bytes,28,opt,name=not"`
	Properties           map[string]JSONSchemaProps `json:"properties,omitempty" protobuf:"bytes,29,rep,name=properties"`
	AdditionalProperties *JSONSchemaPropsOrBool     `json:"additionalProperties,omitempty" protobuf:"bytes,30,opt,name=additionalProperties"`
	PatternProperties    map[string]JSONSchemaProps `json:"patternProperties,omitempty" protobuf:"bytes,31,rep,name=patternProperties"`
	Dependencies         JSONSchemaDependencies     `json:"dependencies,omitempty" protobuf:"bytes,32,opt,name=dependencies"`
	AdditionalItems      *JSONSchemaPropsOrBool     `json:"additionalItems,omitempty" protobuf:"bytes,33,opt,name=additionalItems"`
	Definitions          JSONSchemaDefinitions      `json:"definitions,omitempty" protobuf:"bytes,34,opt,name=definitions"`
	ExternalDocs         *ExternalDocumentation     `json:"externalDocs,omitempty" protobuf:"bytes,35,opt,name=externalDocs"`
	Example              *JSON                      `json:"example,omitempty" protobuf:"bytes,36,opt,name=example"`
	Nullable             bool                       `json:"nullable,omitempty" protobuf:"bytes,37,opt,name=nullable"`

	// x-kubernetes-preserve-unknown-fields stops the API server
	// decoding step from pruning fields which are not specified
	// in the validation schema. This affects fields recursively,
	// but switches back to normal pruning behaviour if nested
	// properties or additionalProperties are specified in the schema.
	// This can either be true or undefined. False is forbidden.
	XPreserveUnknownFields *bool `json:"x-kubernetes-preserve-unknown-fields,omitempty" protobuf:"bytes,38,opt,name=xKubernetesPreserveUnknownFields"`

	// x-kubernetes-embedded-resource defines that the value is an
	// embedded Kubernetes runtime.Object, with TypeMeta and
	// ObjectMeta. The type must be object. It is allowed to further
	// restrict the embedded object. kind, apiVersion and metadata
	// are validated automatically. x-kubernetes-preserve-unknown-fields
	// is allowed to be true, but does not have to be if the object
	// is fully specified (up to kind, apiVersion, metadata).
	XEmbeddedResource bool `json:"x-kubernetes-embedded-resource,omitempty" protobuf:"bytes,39,opt,name=xKubernetesEmbeddedResource"`

	// x-kubernetes-int-or-string specifies that this value is
	// either an integer or a string. If this is true, an empty
	// type is allowed and type as child of anyOf is permitted
	// if following one of the following patterns:
	//
	// 1) anyOf:
	//    - type: integer
	//    - type: string
	// 2) allOf:
	//    - anyOf:
	//      - type: integer
	//      - type: string
	//    - ... zero or more
	XIntOrString bool `json:"x-kubernetes-int-or-string,omitempty" protobuf:"bytes,40,opt,name=xKubernetesIntOrString"`

	// x-kubernetes-list-map-keys annotates an array with the x-kubernetes-list-type `map` by specifying the keys used
	// as the index of the map.
	//
	// This tag MUST only be used on lists that have the "x-kubernetes-list-type"
	// extension set to "map". Also, the values specified for this attribute must
	// be a scalar typed field of the child structure (no nesting is supported).
	//
	// +optional
	XListMapKeys []string `json:"x-kubernetes-list-map-keys,omitempty" protobuf:"bytes,41,rep,name=xKubernetesListMapKeys"`

	// x-kubernetes-list-type annotates an array to further describe its topology.
	// This extension must only be used on lists and may have 3 possible values:
	//
	// 1) `atomic`: the list is treated as a single entity, like a scalar.
	//      Atomic lists will be entirely replaced when updated. This extension
	//      may be used on any type of list (struct, scalar, ...).
	// 2) `set`:
	//      Sets are lists that must not have multiple items with the same value. Each
	//      value must be a scalar, an object with x-kubernetes-map-type `atomic` or an
	//      array with x-kubernetes-list-type `atomic`.
	// 3) `map`:
	//      These lists are like maps in that their elements have a non-index key
	//      used to identify them. Order is preserved upon merge. The map tag
	//      must only be used on a list with elements of type object.
	// Defaults to atomic for arrays.
	// +optional
	XListType *string `json:"x-kubernetes-list-type,omitempty" protobuf:"bytes,42,opt,name=xKubernetesListType"`

	// x-kubernetes-map-type annotates an object to further describe its topology.
	// This extension must only be used when type is object and may have 2 possible values:
	//
	// 1) `granular`:
	//      These maps are actual maps (key-value pairs) and each fields are independent
	//      from each other (they can each be manipulated by separate actors). This is
	//      the default behaviour for all maps.
	// 2) `atomic`: the list is treated as a single entity, like a scalar.
	//      Atomic maps will be entirely replaced when updated.
	// +optional
	XMapType *string `json:"x-kubernetes-map-type,omitempty" protobuf:"bytes,43,opt,name=xKubernetesMapType"`
}

// JSON represents any valid JSON value.
// These types are supported: bool, int64, float64, string, []interface{}, map[string]interface{} and nil.
type JSON struct {
	Raw []byte `protobuf:"bytes,1,opt,name=raw"`
}

// OpenAPISchemaType is used by the kube-openapi generator when constructing
// the OpenAPI spec of this type.
//
// See: https://github.com/kubernetes/kube-openapi/tree/master/pkg/generators
func (_ JSON) OpenAPISchemaType() []string {
	// TODO: return actual types when anyOf is supported
	return nil
}

// OpenAPISchemaFormat is used by the kube-openapi generator when constructing
// the OpenAPI spec of this type.
func (_ JSON) OpenAPISchemaFormat() string { return "" }

// JSONSchemaURL represents a schema url.
type JSONSchemaURL string

// JSONSchemaPropsOrArray represents a value that can either be a JSONSchemaProps
// or an array of JSONSchemaProps. Mainly here for serialization purposes.
type JSONSchemaPropsOrArray struct {
	Schema      *JSONSchemaProps  `protobuf:"bytes,1,opt,name=schema"`
	JSONSchemas []JSONSchemaProps `protobuf:"bytes,2,rep,name=jSONSchemas"`
}

// OpenAPISchemaType is used by the kube-openapi generator when constructing
// the OpenAPI spec of this type.
//
// See: https://github.com/kubernetes/kube-openapi/tree/master/pkg/generators
func (_ JSONSchemaPropsOrArray) OpenAPISchemaType() []string {
	// TODO: return actual types when anyOf is supported
	return nil
}

// OpenAPISchemaFormat is used by the kube-openapi generator when constructing
// the OpenAPI spec of this type.
func (_ JSONSchemaPropsOrArray) OpenAPISchemaFormat() string { return "" }

// JSONSchemaPropsOrBool represents JSONSchemaProps or a boolean value.
// Defaults to true for the boolean property.
type JSONSchemaPropsOrBool struct {
	Allows bool             `protobuf:"varint,1,opt,name=allows"`
	Schema *JSONSchemaProps `protobuf:"bytes,2,opt,name=schema"`
}

// OpenAPISchemaType is used by the kube-openapi generator when constructing
// the OpenAPI spec of this type.
//
// See: https://github.com/kubernetes/kube-openapi/tree/master/pkg/generators
func (_ JSONSchemaPropsOrBool) OpenAPISchemaType() []string {
	// TODO: return actual types when anyOf is supported
	return nil
}

// OpenAPISchemaFormat is used by the kube-openapi generator when constructing
// the OpenAPI spec of this type.
func (_ JSONSchemaPropsOrBool) OpenAPISchemaFormat() string { return "" }

// JSONSchemaDependencies represent a dependencies property.
type JSONSchemaDependencies map[string]JSONSchemaPropsOrStringArray

// JSONSchemaPropsOrStringArray represents a JSONSchemaProps or a string array.
type JSONSchemaPropsOrStringArray struct {
	Schema   *JSONSchemaProps `protobuf:"bytes,1,opt,name=schema"`
	Property []string         `protobuf:"bytes,2,rep,name=property"`
}

// OpenAPISchemaType is used by the kube-openapi generator when constructing
// the OpenAPI spec of this type.
//
// See: https://github.com/kubernetes/kube-openapi/tree/master/pkg/generators
func (_ JSONSchemaPropsOrStringArray) OpenAPISchemaType() []string {
	// TODO: return actual types when anyOf is supported
	return nil
}

// OpenAPISchemaFormat is used by the kube-openapi generator when constructing
// the OpenAPI spec of this type.
func (_ JSONSchemaPropsOrStringArray) OpenAPISchemaFormat() string { return "" }

// JSONSchemaDefinitions contains the models explicitly defined in this spec.
type JSONSchemaDefinitions map[string]JSONSchemaProps

// ExternalDocumentation allows referencing an external resource for extended documentation.
type ExternalDocumentation struct {
	Description string `json:"description,omitempty" protobuf:"bytes,1,opt,name=description"`
	URL         string `json:"url,omitempty" protobuf:"bytes,2,opt,name=url"`
}
