package service

import (
	"fmt"
	"time"
	"twin-api/app/api/response"
	"twin-api/app/common/dao"
	"twin-api/app/common/model"
	"twin-api/base/config"

	"git.u8t.cn/open/go-server/session"
	"github.com/gin-gonic/gin"
	"github.com/spf13/cast"
)

type Params map[string]any

func (p Params) Str(key string) string {
	return cast.ToString(p[key])
}

func (p Params) Int(key string) int {
	return cast.ToInt(p[key])
}

type User struct {
	sess   *session.ApiSession
	params Params
	ctx    *gin.Context
}

func NewUser(ctx *gin.Context) *User {
	u := new(User)
	u.params = make(map[string]any)
	u.ctx = ctx
	if v := ctx.Keys[session.ContextSession]; v != nil {
		if v, ok := v.(*session.ApiSession); ok {
			u.sess = v
		}
	}

	if u.sess == nil {
		panic(config.ErrPermission.New())
	}

	exp := u.sess.GetExperiment()
	// 初始化参数
	for k, v := range config.KeysDefault {
		u.params[k] = exp.GetParam(k, v)
	}

	return u
}

func (u *User) resp(code int, msgKey string) *response.Response {
	return response.New(u.ctx, code, u.params.Str(msgKey))
}

// 判断注册时间
// 判断免费使用时间
// 判断是否有会员
// 包更新判断
// 判断包是否提示强制更新
// 判断包是否提示更新

func (u *User) success() *response.Response {
	resp := u.resp(config.Success, "success").
		Window(&response.Window{Title: "", Close: true}).
		AddButton("", "", "")
	return resp
}

func (u *User) Verify() *response.Response {
	// 检查会员状况
	if resp := u.VipCheck(); resp != nil {
		return resp
	}
	// 检查包更新状况
	if resp := u.PkgCheck(); resp != nil {
		return resp
	}

	return u.success()
}

func (u *User) VipCheck() *response.Response {
	var resp *response.Response
	expire := u.sess.GetUserInfo().VipExpireTime
	if expire == -1 {
		return nil
	}

	free := time.Unix(u.sess.GetUserInfo().ActiveTime, 0).AddDate(0, 0, u.params.Int(config.ServiceFreeDay)).Unix()
	if free-u.sess.GetUserInfo().ActiveTime > 0 {
		return nil
	}

	//
	if expire < time.Now().Unix() {
		resp = response.New(u.ctx, config.VipExpire, u.params.Str(config.ServiceVipExpireNotice))
		window := &response.Window{Close: false}
		resp.Window(window)
		buttons := make([]*response.Button, 0)
		// 首次支付按钮
		if u.sess.GetUserInfo().VipCreateTime == 0 {
			if u.params[config.ServiceFirstPayWay] == config.FirstRechargeByCoupon {
				resp.Message(u.params.Str(config.ServerCouponNotice))
				buttons = append(buttons, New(u.params).CouponButton()...)
			} else {
				buttons = append(buttons, New(u.params).PayButton()...)
			}
		} else {
			if u.params[config.ServicePayWay] == config.FirstRechargeByCoupon {
				resp.Message(u.params.Str(config.ServerCouponNotice))
				buttons = append(buttons, New(u.params).CouponButton()...)
			} else {
				buttons = append(buttons, New(u.params).PayButton()...)
			}
		}

		resp.Button(buttons...)
	}

	return resp
}

func (u *User) PkgCheck() *response.Response {
	var resp *response.Response
	var userPkg *model.UserPkgInfo
	var pkg *model.Pkg
	var err error
	user := u.sess.GetUserInfo()
	if userPkg, err = dao.NewUserPkg().GetLatest(user.Id); err != nil {
		panic(config.ErrDb.New().Append(err))
	}

	if userPkg == nil {
		pkg, err = dao.NewPackage().GetByPkgName("")
		if err != nil {
			panic(config.ErrDb.New().Append(err))
		}

		if pkg == nil {
			panic(config.ErrData.New().Append(err))
		}
		resp = response.New(u.ctx, config.UerNoPkg, u.params.Str(config.ServiceUserPackageLack))
		button := &response.Button{
			Text: u.params.Str(config.ServicePackageLackButton),
			Url:  u.params.Str(config.ServicePackageLackUrl),
			Type: config.ButtonClick,
		}
		window := &response.Window{Close: false}
		resp.Button(button)
		resp.Window(window)

		return resp
	}

	// 先判断是否强制更新
	if resp = u.expireCheck(userPkg, cast.ToInt(u.params[config.ServiceForceUpdateDay])); resp != nil {
		resp.Window(&response.Window{Close: false, Title: u.params.Str(config.ServiceForceUpdateNotice)})
		return resp
	}

	// 判断是否提示更新
	if resp = u.expireCheck(userPkg, cast.ToInt(u.params[config.ServiceUpdateBeforeDay])); resp != nil {
		msg := fmt.Sprintf(u.params.Str(config.ServiceUpdateNotice), time.Unix(userPkg.Pkg.ExpireTime, 0).Format("2006-01-02"))
		resp.Window(&response.Window{Close: true, Title: msg})
		return resp
	}

	return resp
}

// 判断包是否在有效时间内
func (u *User) expireCheck(userPkg *model.UserPkgInfo, day int) *response.Response {
	var pkg *model.Pkg
	var err error
	var resp *response.Response

	expire := time.Now().AddDate(0, 0, day)
	if time.Unix(userPkg.Pkg.ExpireTime, 0).Before(expire) {
		// 提示强制更新
		// 查询当前有无最新可用的包
		// 1. 先查询当前包有无可用
		if pkg, err = dao.NewPackage().GetByPkgName(userPkg.Pkg.Name); err != nil {
			panic(config.ErrDb.New().Append(err))
		}

		// 2. 无则查询其他可用包
		if pkg == nil || time.Unix(pkg.ExpireTime, 0).Before(expire) {
			if pkg, err = dao.NewPackage().GetByPkgName(""); err != nil {
				panic(config.ErrDb.New().Append(err))
			}
			// 3. 如果都不可用，则提示联系客服
			if pkg == nil {
				resp = response.New(u.ctx, config.NoPkg, u.params.Str(config.ServiceContactCustomer))
				window := &response.Window{Close: false}
				resp.Window(window)
				return resp
			}
		}

		// 否则返回强制更新
		message := u.params.Str(config.ServiceForceUpdateNotice)
		if pkg.Name != userPkg.Pkg.Name {
			message = u.params.Str(config.ServiceUpdateOtherNotice)
		}
		resp = response.New(u.ctx, config.NeedUpgrade, message)
		button := &response.Button{
			Text: u.params.Str(config.ServiceInstallButton),
			Url:  pkg.Link,
			Type: config.ButtonClick,
		}
		window := &response.Window{Close: false}
		resp.Button(button)
		resp.Window(window)
	}

	return resp
}