//           ___   ____               ___       ___
// \ \  / / | _   |  __| \ \  / / || | __  || || _ |
//  \ \/ /  |___  | |__   \ \/ /  || |___  || ||___|
//   \  /   | _   | _  |   \  /   ||  __ | || ||\\
//    \/    |___  |___ |    \/    || ____| || || \\
//
// Copyright (c) 2021 Piotr Biernat. https://pbiernat.dev. MIT License
// Repo: https://git.pbiernat.dev/golang/vegvisir

package cache

import (
	"encoding/json"
	"log"
)

type RouteCache struct {
	SourceUrl string
	TargetUrl string
}

type RouteCacheManager struct {
	datastore CacheDatastore
	ttl       int
}

func NewRouteCacheManager(datastore CacheDatastore, ttl int) RouteCacheManager {
	return RouteCacheManager{
		datastore: datastore,
		ttl:       ttl,
	}
}

func (rm *RouteCacheManager) Save(name string, r RouteCache) {
	data, err := json.Marshal(r)
	if err != nil {
		log.Println("JSON:", err) // FIXME
	}

	err = rm.datastore.SetKey("route_"+name, data, rm.ttl)
	if err != nil {
		log.Println("REDIS:", err, name) // FIXME
	}
}

func (rm *RouteCacheManager) Load(name string) (bool, RouteCache) {
	name = "route_" + name

	data, err := rm.datastore.GetKey(name)
	if err != nil {
		log.Println("REDIS:", err, name) // FIXME

		return false, RouteCache{}
	}

	rc := RouteCache{}
	err = json.Unmarshal([]byte(data.(string)), &rc)
	if err != nil {
		log.Println("JSON:", err) // FIXME
	}

	return true, rc
}