// Copyright (c) 2016 Uber Technologies, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.

package zap

import (
	
	
	
	
	

	
)

// ServeHTTP is a simple JSON endpoint that can report on or change the current
// logging level.
//
// # GET
//
// The GET request returns a JSON description of the current logging level like:
//
//	{"level":"info"}
//
// # PUT
//
// The PUT request changes the logging level. It is perfectly safe to change the
// logging level while a program is running. Two content types are supported:
//
//	Content-Type: application/x-www-form-urlencoded
//
// With this content type, the level can be provided through the request body or
// a query parameter. The log level is URL encoded like:
//
//	level=debug
//
// The request body takes precedence over the query parameter, if both are
// specified.
//
// This content type is the default for a curl PUT request. Following are two
// example curl requests that both set the logging level to debug.
//
//	curl -X PUT localhost:8080/log/level?level=debug
//	curl -X PUT localhost:8080/log/level -d level=debug
//
// For any other content type, the payload is expected to be JSON encoded and
// look like:
//
//	{"level":"info"}
//
// An example curl request could look like this:
//
//	curl -X PUT localhost:8080/log/level -H "Content-Type: application/json" -d '{"level":"debug"}'
func ( AtomicLevel) ( http.ResponseWriter,  *http.Request) {
	if  := .serveHTTP(, );  != nil {
		.WriteHeader(http.StatusInternalServerError)
		fmt.Fprintf(, "internal error: %v", )
	}
}

func ( AtomicLevel) ( http.ResponseWriter,  *http.Request) error {
	type  struct {
		 string `json:"error"`
	}
	type  struct {
		 zapcore.Level `json:"level"`
	}

	 := json.NewEncoder()

	switch .Method {
	case http.MethodGet:
		return .Encode({: .Level()})

	case http.MethodPut:
		,  := decodePutRequest(.Header.Get("Content-Type"), )
		if  != nil {
			.WriteHeader(http.StatusBadRequest)
			return .Encode({: .Error()})
		}
		.SetLevel()
		return .Encode({: .Level()})

	default:
		.WriteHeader(http.StatusMethodNotAllowed)
		return .Encode({
			: "Only GET and PUT are supported.",
		})
	}
}

// Decodes incoming PUT requests and returns the requested logging level.
func ( string,  *http.Request) (zapcore.Level, error) {
	if  == "application/x-www-form-urlencoded" {
		return decodePutURL()
	}
	return decodePutJSON(.Body)
}

func ( *http.Request) (zapcore.Level, error) {
	 := .FormValue("level")
	if  == "" {
		return 0, errors.New("must specify logging level")
	}
	var  zapcore.Level
	if  := .UnmarshalText([]byte());  != nil {
		return 0, 
	}
	return , nil
}

func ( io.Reader) (zapcore.Level, error) {
	var  struct {
		 *zapcore.Level `json:"level"`
	}
	if  := json.NewDecoder().Decode(&);  != nil {
		return 0, fmt.Errorf("malformed request body: %v", )
	}
	if . == nil {
		return 0, errors.New("must specify logging level")
	}
	return *., nil
}