package http

import (
	"context"
	"git.diulo.com/mogfee/kit/transport"
	"net/http"
)

type Transporter interface {
	transport.Transporter
	Request() *http.Request
	PathTemplate() string
}

type Transport struct {
	endpoint     string
	operation    string
	reqHeader    headerCarrier
	replyHeader  headerCarrier
	request      *http.Request
	pathTemplate string
}

func (t *Transport) Kind() transport.Kind {
	return transport.KindHTTP
}

func (t *Transport) Endpoint() string {
	return t.endpoint
}

func (t *Transport) Operation() string {
	return t.operation
}

func (t *Transport) RequestHeader() transport.Header {
	return t.reqHeader
}

func (t *Transport) ReplyHeader() transport.Header {
	return t.replyHeader
}

func (t *Transport) Request() *http.Request {
	return t.request
}

func (t *Transport) PathTemplate() string {
	return t.pathTemplate
}
func SetOperation(ctx context.Context, op string) {
	if tr, ok := transport.FromServerContext(ctx); ok {
		if tr, ok := tr.(*Transport); ok {
			tr.operation = op
		}
	}
}
func RequestFromServerContext(ctx context.Context) (*http.Request, bool) {
	if tr, ok := transport.FromServerContext(ctx); ok {
		if tr, ok := tr.(*Transport); ok {
			return tr.request, true
		}
	}
	return nil, false
}

type headerCarrier http.Header

func (h headerCarrier) Get(key string) string {
	return http.Header(h).Get(key)
}

func (h headerCarrier) Set(key string, value string) {
	http.Header(h).Set(key, value)
}

func (h headerCarrier) Keys() []string {
	kvs := make([]string, 0, len(h))
	for k := range http.Header(h) {
		kvs = append(kvs, k)
	}
	return kvs
}