package mq

import (
	"encoding/json"
	"fmt"
	"git.oa00.com/go/jcook-sdk/util/http"
	"git.oa00.com/go/jcook-sdk/util/security"
	"net/url"
	"time"
)

const maxSize = "20"
const autoAck = "false"

const (
	PTopic           = "topic"
	PConsumerGroupID = "consumerGroupId"
	PSize            = "size"
	PAck             = "ack"
	PAccessKey       = "accessKey"
	PDateTime        = "dateTime"
	PSignature       = "signature"
	PToken           = "token"
	PAckAction       = "ackAction"
	PAckIndex        = "ackIndex"
)

type Client struct {
	AccessKey string
	SecretKey string
}

func NewClient(ak string, sk string) *Client {
	return &Client{
		AccessKey: ak,
		SecretKey: sk,
	}
}

type UrlBase interface {
	GetTopicName() string
	GetConsumerGroupID() string
	GetEndPoint() string
}

func getUTCStr() string {
	return time.Now().UTC().Format("2006-01-02T15:04:05Z")
}

func (c *Client) Pull(r UrlBase) ([]byte, error) {
	mq := fmt.Sprintf("%s/%s/messages", http.FormatUrl(r.GetEndPoint(), true), "v2")
	value := url.Values{}
	data := map[string]string{
		PTopic:           r.GetTopicName(),
		PConsumerGroupID: r.GetConsumerGroupID(),
		PSize:            maxSize,
		PAck:             autoAck,
	}

	for k, v := range data {
		value.Set(k, v)
	}
	t := getUTCStr()
	data[PAccessKey] = c.AccessKey
	data[PDateTime] = t

	sign := security.Sha1OrderlyWithBase64(c.SecretKey, data)

	header := map[string]string{
		PAccessKey: c.AccessKey,
		PDateTime:  t,
		PSignature: sign,
	}

	return http.JGet(mq, value, header)
}

func (c *Client) Ack(r UrlBase, index string, action string) ([]byte, error) {
	ack := fmt.Sprintf("%s/%s/ack", http.FormatUrl(r.GetEndPoint(), true), "v2")
	t := getUTCStr()
	data := map[string]string{
		PTopic:           r.GetTopicName(),
		PAccessKey:       c.AccessKey,
		PAckAction:       action,
		PAckIndex:        index,
		PConsumerGroupID: r.GetConsumerGroupID(),
		PDateTime:        t,
	}
	sign := security.Sha1OrderlyWithBase64(c.SecretKey, data)

	header := map[string]string{
		PAccessKey: c.AccessKey,
		PDateTime:  t,
		PSignature: sign,
	}

	jsonStr, _ := json.Marshal(&data)

	return http.JPostJson(ack, jsonStr, header)
}