package sms

import "encoding/json"

type xsend struct {
	appid    string
	appkey   string
	signType string
	to       string
	project  string
	vars     map[string]string
	tag      string
}

const xsendURL = Server + "/message/xsend"

func CreateXsend(config map[string]string) *xsend {
	return &xsend{config["appid"], config["appkey"], config["signType"], "", "", make(map[string]string), ""}
}

func (m *xsend) SetTo(to string) *xsend {
	m.to = to
	return m
}

func (m *xsend) SetProject(project string) *xsend {
	m.project = project
	return m
}

func (m *xsend) AddVar(key string, val string) *xsend {
	m.vars[key] = val
	return m
}

func (m *xsend) AddVars(data map[string]string) *xsend {
	for k, v := range data {
		m.AddVar(k, v)
	}
	return m
}

func (m *xsend) SetTag(tag string) *xsend {
	m.tag = tag
	return m
}

func (m *xsend) Xsend() string {
	config := make(map[string]string)
	config["appid"] = m.appid
	config["appkey"] = m.appkey
	config["signType"] = m.signType

	req := make(map[string]string)
	req["appid"] = m.appid
	req["to"] = m.to
	req["project"] = m.project
	if m.signType != "normal" {
		req["sign_type"] = m.signType
		req["timestamp"] = _GetTimestamp()
		req["sign_version"] = "2"
	}
	if m.tag != "" {
		req["tag"] = m.tag
	}
	req["signature"] = _CreateSignature(req, config)
	//v2 数字签名 vars 不参与计算
	if len(m.vars) > 0 {
		data, err := json.Marshal(m.vars)
		if err == nil {
			req["vars"] = string(data)
		}
	}
	return _Post(xsendURL, req)
}