package tokenize

import (
	"context"
	"time"

	"git.nobla.cn/golang/aeus/pkg/cache"
	"git.nobla.cn/golang/aeus/pkg/errors"
)

// Tokenize 实现简单的session管理, 结合AuthService和JWT middleware可以实现登录和登出等操作
type Tokenize struct {
	cache cache.Cache
}

func (t *Tokenize) buildKey(token string) string {
	return "user:session:" + token
}

func (t *Tokenize) Put(ctx context.Context, token string, ttl int64) error {
	return t.cache.Store(ctx, t.buildKey(token), token, time.Second*time.Duration(ttl))
}

func (t *Tokenize) Del(ctx context.Context, token string) error {
	return t.cache.Delete(ctx, t.buildKey(token))
}

func (t *Tokenize) Validate(ctx context.Context, token string) (err error) {
	var ok bool
	if ok, err = t.cache.Exists(ctx, t.buildKey(token)); err == nil {
		if !ok {
			return errors.ErrAccessDenied
		}
	}
	return
}

func New(c cache.Cache) *Tokenize {
	return &Tokenize{
		cache: c,
	}
}