podman

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// Copyright 2015 go-swagger maintainers
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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//    http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package errors
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import (
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	"encoding/json"
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	"fmt"
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	"net/http"
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)
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// Validation represents a failure of a precondition
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type Validation struct {
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	code    int32
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	Name    string
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	In      string
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	Value   interface{}
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	message string
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	Values  []interface{}
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}
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func (e *Validation) Error() string {
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	return e.message
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}
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// Code the error code
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func (e *Validation) Code() int32 {
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	return e.code
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}
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// MarshalJSON implements the JSON encoding interface
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func (e Validation) MarshalJSON() ([]byte, error) {
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	return json.Marshal(map[string]interface{}{
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		"code":    e.code,
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		"message": e.message,
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		"in":      e.In,
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		"name":    e.Name,
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		"value":   e.Value,
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		"values":  e.Values,
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	})
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}
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// ValidateName sets the name for a validation or updates it for a nested property
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func (e *Validation) ValidateName(name string) *Validation {
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	if name != "" {
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		if e.Name == "" {
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			e.Name = name
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			e.message = name + e.message
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		} else {
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			e.Name = name + "." + e.Name
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			e.message = name + "." + e.message
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		}
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	}
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	return e
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}
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const (
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	contentTypeFail    = `unsupported media type %q, only %v are allowed`
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	responseFormatFail = `unsupported media type requested, only %v are available`
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)
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// InvalidContentType error for an invalid content type
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func InvalidContentType(value string, allowed []string) *Validation {
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	values := make([]interface{}, 0, len(allowed))
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	for _, v := range allowed {
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		values = append(values, v)
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	}
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	return &Validation{
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		code:    http.StatusUnsupportedMediaType,
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		Name:    "Content-Type",
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		In:      "header",
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		Value:   value,
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		Values:  values,
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		message: fmt.Sprintf(contentTypeFail, value, allowed),
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	}
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}
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// InvalidResponseFormat error for an unacceptable response format request
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func InvalidResponseFormat(value string, allowed []string) *Validation {
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	values := make([]interface{}, 0, len(allowed))
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	for _, v := range allowed {
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		values = append(values, v)
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	}
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	return &Validation{
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		code:    http.StatusNotAcceptable,
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		Name:    "Accept",
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		In:      "header",
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		Value:   value,
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		Values:  values,
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		message: fmt.Sprintf(responseFormatFail, allowed),
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	}
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}
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