package user

import (
	"context"

	"github.com/perfect-panel/server/internal/model/user"
	"github.com/perfect-panel/server/internal/svc"
	"github.com/perfect-panel/server/internal/types"
	"github.com/perfect-panel/server/pkg/constant"
	"github.com/perfect-panel/server/pkg/logger"
	"github.com/perfect-panel/server/pkg/xerr"
	"github.com/pkg/errors"
	"gorm.io/gorm"
)

type BindInviteCodeLogic struct {
	logger.Logger
	ctx    context.Context
	svcCtx *svc.ServiceContext
}

// Bind Invite Code
func NewBindInviteCodeLogic(ctx context.Context, svcCtx *svc.ServiceContext) *BindInviteCodeLogic {
	return &BindInviteCodeLogic{
		Logger: logger.WithContext(ctx),
		ctx:    ctx,
		svcCtx: svcCtx,
	}
}

func (l *BindInviteCodeLogic) BindInviteCode(req *types.BindInviteCodeRequest) error {
	// 获取当前用户
	currentUser, ok := l.ctx.Value(constant.CtxKeyUser).(*user.User)
	if !ok {
		logger.Error("current user is not found in context")
		return errors.Wrapf(xerr.NewErrCode(xerr.InvalidAccess), "Invalid Access")
	}

	// 检查用户是否已经绑定过邀请码
	if currentUser.RefererId != 0 {
		return errors.Wrapf(xerr.NewErrCode(xerr.UserExist), "user already bound invite code")
	}

	// 查找邀请人
	referrer, err := l.svcCtx.UserModel.FindOneByReferCode(l.ctx, req.InviteCode)
	if err != nil {
		if errors.Is(err, gorm.ErrRecordNotFound) {
			return errors.Wrapf(xerr.NewErrCodeMsg(xerr.InviteCodeError, "无邀请码"), "invite code not found")
		}
		logger.WithContext(l.ctx).Error(err)
		return errors.Wrapf(xerr.NewErrCode(xerr.DatabaseQueryError), "query referrer failed: %v", err.Error())
	}

	// 检查是否是自己的邀请码
	if referrer.Id == currentUser.Id {
		return errors.Wrapf(xerr.NewErrCodeMsg(xerr.InviteCodeError, "不允许绑定自己"), "cannot bind your own invite code")
	}

	// 更新用户的RefererId
	currentUser.RefererId = referrer.Id
	err = l.svcCtx.UserModel.Update(l.ctx, currentUser)
	if err != nil {
		logger.WithContext(l.ctx).Error(err)
		return errors.Wrapf(xerr.NewErrCode(xerr.DatabaseUpdateError), "update referrer id failed: %v", err.Error())
	}

	return nil
}