package sdk

import (
	"strconv"
	"time"
)

const (
	signatureHeader        string = "x-signature"
	signatureMethodHeader  string = "x-signature-method"
	signatureVersionHeader string = "x-signature-version"
	timestampHeader        string = "x-timestamp"
	nonceHeader            string = "x-nonce"
	contentTypeHeader      string = "Content-Type"
	accessKeyIdHeader      string = "x-accesskeyid"
	regionIdHeader         string = "x-regionid"
	timezoneHeader         string = "x-timezone"
	apiVersionHeader       string = "x-api-version"
	securityTokenHeader    string = "x-security-token"
	localeHeader           string = "x-locale"
	hostHeader             string = "Host"
)

type Params struct {
	headers       map[string]string
	requestMethod string
	uri           string
	requestBody   string
	secretKey     string
}

func NewParams() *Params {
	return &Params{headers: map[string]string{
		signatureMethodHeader:  "HMAC-SHA256",
		signatureVersionHeader: "1.0",
		timestampHeader:        time.Now().Format("2006-01-02T15:04:05Z"),
		nonceHeader:            strconv.Itoa(int(time.Now().UnixNano())),
		contentTypeHeader:      "application/json",
	}}
}

func (p *Params) Headers() map[string]string {
	return p.headers
}

func (p *Params) RequestMethod(requestMethod string) *Params {
	p.requestMethod = requestMethod
	return p
}

func (p *Params) Uri(uri string) *Params {
	p.uri = uri
	return p
}

func (p *Params) RequestBody(requestBody string) *Params {
	p.requestBody = requestBody
	return p
}

func (p *Params) SecretKey(secretKey string) *Params {
	p.secretKey = secretKey
	return p
}

func (p *Params) Signature(signature string) *Params {
	p.headers[signatureHeader] = signature
	return p
}

func (p *Params) RegionId(regionId string) *Params {
	p.headers[regionIdHeader] = regionId
	return p
}

func (p *Params) AccessKeyId(accesskeyId string) *Params {
	p.headers[accessKeyIdHeader] = accesskeyId
	return p
}

func (p *Params) SignatureMethod(signatureMethod string) *Params {
	p.headers[signatureMethodHeader] = signatureMethod
	return p
}

func (p *Params) SignatureVersion(signatureVersion string) *Params {
	p.headers[signatureVersionHeader] = signatureVersion
	return p
}

func (p *Params) Nonce(nonce string) *Params {
	p.headers[nonceHeader] = nonce
	return p
}

func (p *Params) Timestamp(timestamp string) *Params {
	p.headers[timestampHeader] = timestamp
	return p
}

func (p *Params) Timezone(timezone string) *Params {
	p.headers[timezoneHeader] = timezone
	return p
}

func (p *Params) ApiVersion(apiVersion string) *Params {
	p.headers[apiVersionHeader] = apiVersion
	return p
}

func (p *Params) SecurityToken(securityToken string) *Params {
	p.headers[securityTokenHeader] = securityToken
	return p
}

func (p *Params) Locale(locale string) *Params {
	p.headers[localeHeader] = locale
	return p
}

func (p *Params) ContentType(contentType string) *Params {
	p.headers[contentTypeHeader] = contentType
	return p
}

func (p *Params) Host(host string) *Params {
	p.headers[hostHeader] = host
	return p
}

// Deprecated
func (p *Params) PutParams(params map[string]string) *Params {
	return p.PutQueryParams(params)
}

func (p *Params) PutQueryParams(params map[string]string) *Params {
	for k, v := range params {
		p.headers[k] = v
	}
	return p
}