package svc

import (
	"context"
	"encoding/json"
	"errors"
	"gitea.youtukeji.com.cn/xiabin/youtu_server/game_open_api/internal/config"
	"gitea.youtukeji.com.cn/xiabin/youtu_server/game_open_api/model"
	helper "gitea.youtukeji.com.cn/youtu/openapi-helper"
	"github.com/golang-jwt/jwt/v4"
	redisCache "github.com/silenceper/wechat/v2/cache"
	"github.com/zeromicro/go-zero/core/stores/sqlx"
	"go.uber.org/zap"
	"go.uber.org/zap/zapcore"
	"gopkg.in/natefinch/lumberjack.v2"
	"math/rand"
	"time"
)

type ServiceContext struct {
	Config     config.Config
	AppUser    model.AppUserModel
	GameScore  model.GameScoreModel
	AppAccount model.AppAccountModel
	DouyinCli  *helper.DouYinOpenApiClient
	WechatCli  *helper.WechatApi
	ZapLogger  *zap.Logger
}

func NewServiceContext(c config.Config) *ServiceContext {
	svc := &ServiceContext{
		Config:     c,
		AppUser:    model.NewAppUserModel(sqlx.NewMysql(c.DB.DataSource), c.Cache),
		GameScore:  model.NewGameScoreModel(sqlx.NewMysql(c.DB.DataSource), c.Cache),
		AppAccount: model.NewAppAccountModel(sqlx.NewMysql(c.DB.DataSource), c.Cache),
	}

	dwCache := redisCache.NewRedis(context.Background(), &redisCache.RedisOpts{Host: c.DWCache.Host, IdleTimeout: c.DWCache.IdleTimeout})

	svc.DouyinCli = helper.NewDouYinOpenApiClient()
	svc.WechatCli = helper.NewWechatOpenApiClient()
	result, err := svc.AppAccount.FindAll(context.Background())
	if err != nil {
		panic(err)
	}

	for _, v := range *result {
		if v.Type == 0 {
			svc.DouyinCli.NewAndStoreDouYinOpenApi(v.AppID, v.Secret, v.EcpmValue.V, v.EcpmView.V, dwCache)
		} else {
			svc.WechatCli.NewAndStoreWechatOpenApi(v.AppID, v.Secret, dwCache)
		}
	}

	//初始化一个zap日志对象用于写入ecpm日志
	svc.ZapLogger = zap.New(zapcore.NewCore(
		zapcore.NewJSONEncoder(zapcore.EncoderConfig{
			TimeKey:        "ts",
			LevelKey:       "level",
			NameKey:        "logger",
			CallerKey:      "caller",
			FunctionKey:    zapcore.OmitKey,
			MessageKey:     "msg",
			StacktraceKey:  "stacktrace",
			LineEnding:     zapcore.DefaultLineEnding,
			EncodeLevel:    zapcore.LowercaseLevelEncoder,
			EncodeTime:     zapcore.EpochTimeEncoder,
			EncodeDuration: zapcore.SecondsDurationEncoder,
			EncodeCaller:   zapcore.ShortCallerEncoder,
		}),
		zapcore.NewMultiWriteSyncer(zapcore.AddSync(&lumberjack.Logger{
			Filename:   c.EcpmLogPath, // Log file path 日志文件的路径
			MaxSize:    1024,          // Maximum size unit for each log file: M 每个日志最大大小
			MaxBackups: 30,            // The maximum number of backups that can be saved for log files 可以保存的日志文件数量
			MaxAge:     7,             // Maximum number of days the file can be saved 日志文件保存的最大天数
			Compress:   true,          // Compression or not 是否对日志文件进行压缩
		})),
		zapcore.InfoLevel,
	))

	return svc
}

type AccessToken struct {
	AppId    uint64 `json:"appId"`
	UserId   uint64 `json:"userId"`
	AppIdStr string `json:"appIdStr"`
	OpenId   string `json:"openId"`
}

func UnmarshalAccessToken(d any) (ac AccessToken, err error) {
	m, ok := d.(map[string]interface{})
	if !ok {
		err = errors.New("invalid access token")
		return
	}
	appId, _ := m["appId"].(json.Number).Int64()
	ac.AppId = uint64(appId)
	userId, _ := m["userId"].(json.Number).Int64()
	ac.UserId = uint64(userId)
	ac.AppIdStr = m["appIdStr"].(string)
	ac.OpenId = m["openId"].(string)
	return
}

func GetCtxToken(ctx context.Context) (ac AccessToken, err error) {
	return UnmarshalAccessToken(ctx.Value("payload"))
}

// GenerateAccessToken 生成 JWT 认证的 token
// 会从ServiceContext中获取配置信息
func (svc *ServiceContext) GenerateAccessToken(at *AccessToken) (token string, err error) {
	claims := make(jwt.MapClaims)
	claims["exp"] = time.Now().Unix() + svc.Config.Auth.AccessExpire
	claims["iat"] = svc.Config.Auth.AccessExpire
	claims["payload"] = at

	t := jwt.New(jwt.SigningMethodHS256)
	t.Claims = claims
	token, err = t.SignedString([]byte(svc.Config.Auth.AccessSecret))
	return
}

var DefaultUsername = []string{
	"甜蜜糖果",
	"糖果爱好者",
	"软糖粉丝",
	"巧克力糖果控",
	"棒棒糖迷",
	"小熊软糖达人",
	"硬糖狂人",
	"焦糖糖果控",
	"水果糖行家",
	"棉花糖达人",
}

// GetRandomUsername 随机获取一个糖果相关的用户名
func GetRandomUsername() string {
	// 初始化随机数种子
	r := rand.New(rand.NewSource(time.Now().UnixNano()))
	// 生成一个 0 到列表长度减 1 之间的随机索引
	randomIndex := r.Intn(len(DefaultUsername))
	// 根据随机索引返回对应的用户名
	return DefaultUsername[randomIndex]
}