// Copyright 2018 Gin Core Team.  All rights reserved.
// Use of this source code is governed by a MIT style
// license that can be found in the LICENSE file.

// +build go1.7

package gin

import (
	"github.com/gin-gonic/gin/render"
	"time"
)

// PureJSON serializes the given struct as JSON into the response body.
// PureJSON, unlike JSON, does not replace special html characters with their unicode entities.
func (c *Context) PureJSON(code int, obj interface{}) {
	c.Render(code, render.PureJSON{Data: obj})
}

/*****************************************/
/***** STDLIB CONTEXT IMPLEMENTATION *****/
/*****************************************/

// Deadline returns the time when work done on behalf of this context
// should be canceled. Deadline returns ok==false when no deadline is
// set. Successive calls to Deadline return the same results.
func (c *Context) Deadline() (deadline time.Time, ok bool) {
	return c.Request.Context().Deadline()
}

// Done returns a channel that's closed when work done on behalf of this
// context should be canceled. Done may return nil if this context can
// never be canceled. Successive calls to Done return the same value.
func (c *Context) Done() <-chan struct{} {
	return c.Request.Context().Done()
}

// Err returns a non-nil error value after Done is closed,
// successive calls to Err return the same error.
// If Done is not yet closed, Err returns nil.
// If Done is closed, Err returns a non-nil error explaining why:
// Canceled if the context was canceled
// or DeadlineExceeded if the context's deadline passed.
func (c *Context) Err() error {
	return c.Request.Context().Err()
}

// Value returns the value associated with this context for key, or nil
// if no value is associated with key. Successive calls to Value with
// the same key returns the same result.
func (c *Context) Value(key interface{}) interface{} {
	if key == 0 {
		return c.Request
	}
	if keyAsString, ok := key.(string); ok {
		val, exists := c.Get(keyAsString)
		if exists {
			return val
		}
	}
	return c.Request.Context().Value(key)
}