lodestone-fetcher/main.go

package main

import (
	"encoding/json"
	"errors"
	"fmt"
	"log"
	"os"
	"path"
	"time"

	"github.com/karashiiro/bingode"
	"github.com/xivapi/godestone/v2"
)

const CachePath = "./.cache"

type CacheRecord struct {
	Time time.Time `json:"time"`
	Data string    `json:"data"`
}
type Cache map[uint32]CacheRecord

func main() {
	err := os.MkdirAll(CachePath, 0755)
	if err != nil {
		log.Fatal(err)
	}

	raw_cache, err := os.ReadFile(path.Join(CachePath, "cache.json"))
	var cache Cache

	if errors.Is(err, os.ErrNotExist) {
		cache = make(Cache)
	} else if err == nil {
		err := json.Unmarshal(raw_cache, &cache)
		if err != nil {
			log.Fatalln(err)
		}
	} else {
		log.Fatalln(err)
	}

	var id uint32 = 29932586
	data, ok := cache[id]
	if !ok {
		log.Printf("Fetching fresh data for %d\n", id)
		s := godestone.NewScraper(bingode.New(), godestone.EN)

		c, err := s.FetchCharacter(id)
		if err != nil {
			log.Fatalln(err)
		}

		raw_data, _ := json.Marshal(c.ClassJobs)
		data = CacheRecord{Time: time.Now(), Data: string(raw_data)}

		cache[id] = data
	}

	cache_as_stored, err := json.Marshal(cache)
	if err != nil {
		log.Fatalln(err)
	}

	err = os.WriteFile(path.Join(CachePath, "cache.json"), cache_as_stored, 0755)
	if err != nil {
		log.Fatalln(err)
	}
	fmt.Printf("%s\n", data.Data)
}