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package handlers
import (
"context"
"log"
"net/http"
"net/url"
"strconv"
"strings"
"github.com/go-chi/chi/v5"
"task-dashboard/internal/api"
"task-dashboard/internal/config"
"task-dashboard/internal/models"
"task-dashboard/internal/store"
)
// fetchICSFeedEvents fetches every enabled .ics feed and returns their events.
//
// Failures are per-feed: one unreachable URL is recorded against that feed and
// skipped, leaving the others (and Google Calendar) unaffected. The whole point
// of recording last_error is that a feed which has quietly stopped resolving
// shows as broken in settings, instead of just silently having no events —
// which is indistinguishable from a team having no games left.
func (h *Handler) fetchICSFeedEvents(ctx context.Context) []models.CalendarEvent {
feeds, err := h.store.GetEnabledICSFeeds()
if err != nil {
log.Printf("ERROR [ICS]: listing feeds: %v", err)
return nil
}
if len(feeds) == 0 {
return nil
}
fetcher := api.NewICSFetcher(config.HTTPClientTimeout)
var all []models.CalendarEvent
for _, feed := range feeds {
events, err := fetcher.Fetch(ctx, feed.URL)
if err != nil {
log.Printf("ERROR [ICS/%s]: %v", feed.Name, err)
_ = h.store.RecordICSFeedResult(feed.ID, 0, err)
continue
}
converted := api.ToCalendarEvents(strconv.FormatInt(feed.ID, 10), feed.Name, events)
all = append(all, converted...)
_ = h.store.RecordICSFeedResult(feed.ID, len(converted), nil)
log.Printf("DEBUG [ICS/%s]: %d events", feed.Name, len(converted))
}
return all
}
// HandleAddICSFeed subscribes to a new .ics feed.
func (h *Handler) HandleAddICSFeed(w http.ResponseWriter, r *http.Request) {
if err := r.ParseForm(); err != nil {
JSONError(w, http.StatusBadRequest, "Failed to parse form", err)
return
}
name := strings.TrimSpace(r.FormValue("name"))
feedURL := strings.TrimSpace(r.FormValue("url"))
// webcal:// is how calendar feeds are usually advertised; it is plain HTTPS
// underneath, and pasting the advertised link is the obvious thing to do.
if strings.HasPrefix(strings.ToLower(feedURL), "webcal://") {
feedURL = "https://" + feedURL[len("webcal://"):]
}
if name == "" || feedURL == "" {
JSONError(w, http.StatusBadRequest, "Name and URL are required", nil)
return
}
parsed, err := url.Parse(feedURL)
if err != nil || (parsed.Scheme != "http" && parsed.Scheme != "https") || parsed.Host == "" {
JSONError(w, http.StatusBadRequest, "URL must be a valid http(s) or webcal address", nil)
return
}
if err := h.store.AddICSFeed(name, feedURL); err != nil {
JSONError(w, http.StatusInternalServerError, "Failed to save feed", err)
return
}
// Drop the cached calendar so the new feed's events appear on the next
// load rather than after the TTL expires.
_ = h.store.InvalidateCache(store.CacheKeyGoogleCalendar)
h.renderICSFeedList(w, r)
}
// HandleToggleICSFeed enables or disables a feed without deleting it.
func (h *Handler) HandleToggleICSFeed(w http.ResponseWriter, r *http.Request) {
id, err := strconv.ParseInt(chi.URLParam(r, "id"), 10, 64)
if err != nil {
JSONError(w, http.StatusBadRequest, "Invalid feed id", err)
return
}
if err := r.ParseForm(); err != nil {
JSONError(w, http.StatusBadRequest, "Failed to parse form", err)
return
}
enabled := r.FormValue("enabled") == "true"
if err := h.store.SetICSFeedEnabled(id, enabled); err != nil {
JSONError(w, http.StatusInternalServerError, "Failed to update feed", err)
return
}
_ = h.store.InvalidateCache(store.CacheKeyGoogleCalendar)
h.renderICSFeedList(w, r)
}
// HandleDeleteICSFeed removes a feed.
func (h *Handler) HandleDeleteICSFeed(w http.ResponseWriter, r *http.Request) {
id, err := strconv.ParseInt(chi.URLParam(r, "id"), 10, 64)
if err != nil {
JSONError(w, http.StatusBadRequest, "Invalid feed id", err)
return
}
if err := h.store.DeleteICSFeed(id); err != nil {
JSONError(w, http.StatusInternalServerError, "Failed to delete feed", err)
return
}
_ = h.store.InvalidateCache(store.CacheKeyGoogleCalendar)
h.renderICSFeedList(w, r)
}
// HandleGetICSFeeds renders the feed list on its own, for the settings page.
func (h *Handler) HandleGetICSFeeds(w http.ResponseWriter, r *http.Request) {
h.renderICSFeedList(w, r)
}
func (h *Handler) renderICSFeedList(w http.ResponseWriter, r *http.Request) {
feeds, err := h.store.GetICSFeeds()
if err != nil {
JSONError(w, http.StatusInternalServerError, "Failed to list feeds", err)
return
}
HTMLResponse(w, h.renderer, "ics-feed-list", struct {
Feeds []icsFeedView
}{toICSFeedViews(feeds)})
}
// icsFeedView is the feed as the settings template needs it: pre-formatted, so
// the template holds no date or error-shortening logic.
type icsFeedView struct {
ID int64
Name string
URL string
Enabled bool
LastFetched string
LastError string
EventCount int
}
func toICSFeedViews(feeds []store.ICSFeed) []icsFeedView {
out := make([]icsFeedView, 0, len(feeds))
for _, f := range feeds {
lastFetched := "never"
if f.LastFetchedAt != nil {
lastFetched = config.ToDisplayTZ(*f.LastFetchedAt).Format("Jan 2, 3:04 PM")
}
// A raw Go error can be a paragraph of URL and wrapping; the settings
// row needs enough to recognise the problem, not the whole thing.
lastError := f.LastError
if len(lastError) > 160 {
lastError = lastError[:157] + "..."
}
out = append(out, icsFeedView{
ID: f.ID,
Name: f.Name,
URL: f.URL,
Enabled: f.Enabled,
LastFetched: lastFetched,
LastError: lastError,
EventCount: f.EventCount,
})
}
return out
}
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