package openapi3

import (

	"context"

	"errors"

	"github.com/getkin/kin-openapi/jsoninfo"

)

// Info is specified by OpenAPI/Swagger standard version 3.0.

type Info struct {

	ExtensionProps

	Title          string   `json:"title" yaml:"title"` // Required

	Description    string   `json:"description,omitempty" yaml:"description,omitempty"`

	TermsOfService string   `json:"termsOfService,omitempty" yaml:"termsOfService,omitempty"`

	Contact        *Contact `json:"contact,omitempty" yaml:"contact,omitempty"`

	License        *License `json:"license,omitempty" yaml:"license,omitempty"`

	Version        string   `json:"version" yaml:"version"` // Required

}

func (value *Info) MarshalJSON() ([]byte, error) {

	return jsoninfo.MarshalStrictStruct(value)

}

func (value *Info) UnmarshalJSON(data []byte) error {

	return jsoninfo.UnmarshalStrictStruct(data, value)

}

func (value *Info) Validate(c context.Context) error {

	if contact := value.Contact; contact != nil {

		if err := contact.Validate(c); err != nil {

			return err

		}

	}

	if license := value.License; license != nil {

		if err := license.Validate(c); err != nil {

			return err

		}

	}

	if value.Version == "" {

		return errors.New("value of version must be a non-empty JSON string")

	}

	if value.Title == "" {

		return errors.New("value of title must be a non-empty JSON string")

	}

	return nil

}

// Contact is specified by OpenAPI/Swagger standard version 3.0.

type Contact struct {

	ExtensionProps

	Name  string `json:"name,omitempty" yaml:"name,omitempty"`

	URL   string `json:"url,omitempty" yaml:"url,omitempty"`

	Email string `json:"email,omitempty" yaml:"email,omitempty"`

}

func (value *Contact) MarshalJSON() ([]byte, error) {

	return jsoninfo.MarshalStrictStruct(value)

}

func (value *Contact) UnmarshalJSON(data []byte) error {

	return jsoninfo.UnmarshalStrictStruct(data, value)

}

func (value *Contact) Validate(c context.Context) error {

	return nil

}

// License is specified by OpenAPI/Swagger standard version 3.0.

type License struct {

	ExtensionProps

	Name string `json:"name" yaml:"name"` // Required

	URL  string `json:"url,omitempty" yaml:"url,omitempty"`

}

func (value *License) MarshalJSON() ([]byte, error) {

	return jsoninfo.MarshalStrictStruct(value)

}

func (value *License) UnmarshalJSON(data []byte) error {

	return jsoninfo.UnmarshalStrictStruct(data, value)

}

func (value *License) Validate(c context.Context) error {

	if value.Name == "" {

		return errors.New("value of license name must be a non-empty JSON string")

	}

	return nil

}