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package api
import (
"context"
"encoding/json"
"log/slog"
"net/http"
"os"
"strconv"
"time"
"github.com/docker/docker/pkg/stdcopy"
)
type ServerStatus struct {
Online bool `json:"online"`
Site string `json:"url"`
Timestamp time.Time `json:"timestamp"`
}
var Logger *slog.Logger
const VTT_URL string = "https://dnd.jpappel.xyz/foundry"
func remoteOnline(ctx context.Context, url string) ServerStatus {
status := ServerStatus{Site: url, Timestamp: time.Now()}
req, err := http.NewRequestWithContext(ctx, http.MethodGet, url, nil)
if err != nil {
panic(err)
}
_, err = http.DefaultClient.Do(req)
if err != nil {
status.Online = false
} else {
status.Online = true
}
return status
}
func respondOnline(w http.ResponseWriter, status ServerStatus) {
jsonData, err := json.Marshal(status)
if err != nil {
http.Error(w, "Error constructing response", http.StatusInternalServerError)
Logger.Error("Error marshalling site status data", slog.Any("err", err))
return
}
w.Header().Set("Content-Type", "application/json")
w.Write(jsonData)
}
func VttOnline(w http.ResponseWriter, req *http.Request) {
status := remoteOnline(req.Context(), VTT_URL)
if !status.Online {
Logger.DebugContext(req.Context(), "Foundry VTT is offline")
}
respondOnline(w, status)
}
func VttRedirect(w http.ResponseWriter, req *http.Request) {
http.Redirect(w, req, VTT_URL, http.StatusMovedPermanently)
}
func VttLogs(w http.ResponseWriter, req *http.Request) {
var lines uint = 0
linesParam := req.URL.Query().Get("lines")
if linesParam != "" {
lines_64, err := strconv.ParseUint(linesParam, 10, 0)
if err != nil {
Logger.ErrorContext(req.Context(), "Invalid line count in vtt logs request", slog.Any("err", err))
http.Error(w, "Invalid line count in request", http.StatusBadRequest)
return
}
lines = uint(lines_64)
}
logReader, err := vttLogs(req.Context(), lines)
if err != nil {
http.Error(w, "Error occured while getting logs", http.StatusInternalServerError)
return
}
defer logReader.Close()
if _, err = stdcopy.StdCopy(w, w, logReader); err != nil {
Logger.Error("Error occured while writting logs to response", slog.Any("err", err), slog.Any("request", req))
http.Error(w, "Error occured while writting logs", http.StatusInternalServerError)
return
}
}
func SiteOnline(w http.ResponseWriter, req *http.Request) {
const URL string = "https://dnd.jpappel.xyz"
status := remoteOnline(req.Context(), URL)
if !status.Online {
Logger.DebugContext(req.Context(), "Campaign Website is offline")
}
respondOnline(w, status)
}
func init() {
Logger = slog.New(slog.NewTextHandler(os.Stdout, nil))
}
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