109 lines
2.2 KiB
Go
109 lines
2.2 KiB
Go
package api
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import (
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"crypto/md5"
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"crypto/rand"
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"encoding/base64"
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"encoding/binary"
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"encoding/json"
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"fmt"
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"log"
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"net/http"
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"os"
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"strconv"
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"time"
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"github.com/Flashfyre/pokerogue-server/db"
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"github.com/go-co-op/gocron"
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)
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const secondsPerDay = 60 * 60 * 24
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var (
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dailyRunScheduler = gocron.NewScheduler(time.UTC)
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dailyRunSecret []byte
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dailyRunSeed string
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)
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func ScheduleDailyRunRefresh() {
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dailyRunScheduler.Every(1).Day().At("00:00").Do(InitDailyRun)
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dailyRunScheduler.StartAsync()
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}
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func InitDailyRun() {
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secret, err := os.ReadFile("secret.key")
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if err != nil {
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if !os.IsNotExist(err) {
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log.Fatalf("failed to read daily seed secret: %s", err)
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}
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newSecret := make([]byte, 32)
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_, err := rand.Read(newSecret)
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if err != nil {
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log.Fatalf("failed to generate daily seed secret: %s", err)
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}
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err = os.WriteFile("secret.key", newSecret, 0400)
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if err != nil {
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log.Fatalf("failed to write daily seed secret: %s", err)
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}
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secret = newSecret
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}
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dailyRunSecret = secret
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dailyRunSeed = base64.StdEncoding.EncodeToString(DeriveDailyRunSeed(time.Now().UTC()))
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err = db.TryAddDailyRun(dailyRunSeed)
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if err != nil {
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log.Print(err.Error())
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}
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log.Printf("Daily Run Seed: %s", dailyRunSeed)
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}
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func DeriveDailyRunSeed(seedTime time.Time) []byte {
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day := make([]byte, 8)
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binary.BigEndian.PutUint64(day, uint64(seedTime.Unix()/secondsPerDay))
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hashedSeed := md5.Sum(append(day, dailyRunSecret...))
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return hashedSeed[:]
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}
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// /daily/seed - fetch daily run seed
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func (s *Server) HandleSeed(w http.ResponseWriter, r *http.Request) {
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w.Write([]byte(dailyRunSeed))
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}
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// /daily/rankings - fetch daily rankings
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func (s *Server) HandleRankings(w http.ResponseWriter, r *http.Request) {
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var err error
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var page int
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if r.URL.Query().Has("page") {
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page, err = strconv.Atoi(r.URL.Query().Get("page"))
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if err != nil {
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http.Error(w, fmt.Sprintf("failed to convert page: %s", err), http.StatusBadRequest)
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return
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}
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} else {
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page = 1
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}
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rankings, err := db.FetchRankings(page)
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if err != nil {
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log.Print("failed to retrieve rankings")
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}
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response, err := json.Marshal(rankings)
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if err != nil {
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http.Error(w, fmt.Sprintf("failed to marshal response json: %s", err), http.StatusInternalServerError)
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return
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}
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w.Write(response)
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}
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