package douyin

import (
	"encoding/json"
	"fmt"
	accessToken "gitea.youtukeji.com.cn/youtu/openapi-helper/douyin/access-token"
	util2 "gitea.youtukeji.com.cn/youtu/openapi-helper/douyin/util"
	"github.com/silenceper/wechat/v2/cache"
	"io"
	"net/http"
)

const (
	code2Session = "https://minigame.zijieapi.com/mgplatform/api/apps/jscode2session" // 小程序登录地址
)

// DouYinOpenApiConfig 实例化配置
type DouYinOpenApiConfig struct {
	AppId       string
	AppSecret   string
	AccessToken accessToken.AccessToken
	Cache       cache.Cache
	IsSandbox   bool
	Token       string
	Salt        string
}

// DouYinOpenApi 基类
type DouYinOpenApi struct {
	Config  DouYinOpenApiConfig
	BaseApi string
}

// NewDouYinOpenApi 实例化一个抖音openapi实例
func NewDouYinOpenApi(config DouYinOpenApiConfig) *DouYinOpenApi {
	if config.Cache == nil {
		config.Cache = cache.NewMemory()
	}
	if config.AccessToken == nil {
		config.AccessToken = accessToken.NewDefaultAccessToken(config.AppId, config.AppSecret, config.Cache, config.IsSandbox)
	}
	return &DouYinOpenApi{
		Config: config,
	}
}

// GetApiUrl 获取api地址
func (d *DouYinOpenApi) GetApiUrl(url string) string {
	return fmt.Sprintf("%s%s", d.BaseApi, url)
}

// Get 获取数据
func (d *DouYinOpenApi) Get(url string, params any) (data []byte, err error) {
	paramsStr, err := util2.StructToQueryParams(params)
	if err != nil {
		return
	}
	fullURL := fmt.Sprintf("%s?%s", url, paramsStr)
	res, err := http.Get(fullURL)
	if err != nil {
		return
	}
	defer res.Body.Close() // 关闭连接
	data, err = io.ReadAll(res.Body)
	if err != nil {
		return
	}
	return
}

// PostJson 封装公共的请求方法
func (d *DouYinOpenApi) PostJson(api string, params any, response any) (err error) {
	body, err := util2.PostJSON(api, params)
	if err != nil {
		return
	}
	err = json.Unmarshal(body, &response)
	if err != nil {
		return
	}
	return
}

// Code2SessionParams 小程序登录 所需参数
type Code2SessionParams struct {
	Appid         string `json:"appid,omitempty"`
	Secret        string `json:"secret,omitempty"`
	AnonymousCode string `json:"anonymous_code,omitempty"`
	Code          string `json:"code,omitempty"`
}

type Code2SessionResponse struct {
	Errcode         int    `json:"errcode"`
	Errmsg          string `json:"errmsg"`
	Message         string `json:"message,omitempty"`
	AnonymousOpenid string `json:"anonymous_openid"`
	Error           int    `json:"error"`
	Openid          string `json:"openid"`
	SessionKey      string `json:"session_key"`
	Unionid         string `json:"unionid"`
}

type Code2SessionResponseData struct {
	SessionKey      string `json:"session_key,omitempty"`
	Openid          string `json:"openid,omitempty"`
	AnonymousOpenid string `json:"anonymous_openid,omitempty"`
	UnionId         string `json:"unionid,omitempty"`
}

// Code2Session 小程序登录
func (d *DouYinOpenApi) Code2Session(code, anonymousCode string) (code2SessionResponse Code2SessionResponse, err error) {
	params := Code2SessionParams{
		Appid:         d.Config.AppId,
		Secret:        d.Config.AppSecret,
		AnonymousCode: anonymousCode,
		Code:          code,
	}
	b, err := d.Get(code2Session, params)
	if err != nil {
		return
	}
	err = json.Unmarshal(b, &code2SessionResponse)
	if err != nil {
		return
	}
	return code2SessionResponse, nil
}

type Record struct {
	Aid       string `json:"aid"`
	Cost      int    `json:"cost"`
	Did       string `json:"did"`
	EventName string `json:"event_name"`
	EventTime string `json:"event_time"`
	OpenID    string `json:"open_id"`
	ID        int    `json:"id"`
}

// GetEcpmParams 获取ECPM参数
type GetEcpmParams struct {
	AppId       string `json:"app_id" form:"app_id"`
	OpenId      string `json:"open_id" form:"open_id"`
	AccessToken string `json:"access_token" form:"access_token"`
	DateHour    string `json:"date_hour" form:"date_hour"`
	PageSize    int    `json:"page_size" form:"page_size"`
	PageNo      int    `json:"page_no" form:"page_no"`
}

// GetAccessToken 获取accessToken
func (d *DouYinOpenApi) GetAccessToken() (string, error) {
	return d.Config.AccessToken.GetAccessToken()
}