diff --git a/internal/assets/templates.go b/internal/assets/templates.go
index fe82ed5..3c9f691 100644
--- a/internal/assets/templates.go
+++ b/internal/assets/templates.go
@@ -22,6 +22,7 @@ var (
RedditCardsHorizontalTemplate = compileTemplate("reddit-horizontal-cards.html", "widget-base.html")
RedditCardsVerticalTemplate = compileTemplate("reddit-vertical-cards.html", "widget-base.html")
ReleasesTemplate = compileTemplate("releases.html", "widget-base.html")
+ ChangesTemplate = compileTemplate("changes.html", "widget-base.html")
VideosTemplate = compileTemplate("videos.html", "widget-base.html")
StocksTemplate = compileTemplate("stocks.html", "widget-base.html")
RSSListTemplate = compileTemplate("rss-list.html", "widget-base.html")
diff --git a/internal/assets/templates/changes.html b/internal/assets/templates/changes.html
new file mode 100644
index 0000000..d8eee38
--- /dev/null
+++ b/internal/assets/templates/changes.html
@@ -0,0 +1,17 @@
+{{ template "widget-base.html" . }}
+
+{{ define "widget-content" }}
+
+ {{ range $i, $watch := .ChangeDetections }}
+ -
+ {{ .Name }}
+
+ - {{ $watch.LastChanged | relativeTime }}
+
+
+ {{ end }}
+
+{{ if gt (len .ChangeDetections) $.CollapseAfter }}
+
+{{ end }}
+{{ end }}
diff --git a/internal/feed/changedetection.go b/internal/feed/changedetection.go
new file mode 100644
index 0000000..6bfd119
--- /dev/null
+++ b/internal/feed/changedetection.go
@@ -0,0 +1,79 @@
+package feed
+
+import (
+ "fmt"
+ "log/slog"
+ "net/http"
+ "time"
+)
+
+type changeDetectionResponseJson struct {
+ Name string `json:"title"`
+ Url string `json:"url"`
+ LastChanged int `json:"last_changed"`
+}
+
+
+func parseLastChangeTime(t int) time.Time {
+ parsedTime := time.Unix(int64(t), 0)
+ return parsedTime
+}
+
+
+func FetchLatestDetectedChanges(watches []string, token string) (ChangeWatches, error) {
+ changeWatches := make(ChangeWatches, 0, len(watches))
+
+ if len(watches) == 0 {
+ return changeWatches, nil
+ }
+
+ requests := make([]*http.Request, len(watches))
+
+ for i, repository := range watches {
+ request, _ := http.NewRequest("GET", fmt.Sprintf("https://changedetection.knhash.in/api/v1/watch/%s", repository), nil)
+
+ if token != "" {
+ request.Header.Add("x-api-key", token)
+ }
+
+ requests[i] = request
+ }
+
+ task := decodeJsonFromRequestTask[changeDetectionResponseJson](defaultClient)
+ job := newJob(task, requests).withWorkers(15)
+ responses, errs, err := workerPoolDo(job)
+
+ if err != nil {
+ return nil, err
+ }
+
+ var failed int
+
+ for i := range responses {
+ if errs[i] != nil {
+ failed++
+ slog.Error("Failed to fetch or parse change detections", "error", errs[i], "url", requests[i].URL)
+ continue
+ }
+
+ watch := responses[i]
+
+ changeWatches = append(changeWatches, ChangeWatch{
+ Name: watch.Name,
+ Url: watch.Url,
+ LastChanged: parseLastChangeTime(watch.LastChanged),
+ })
+ }
+
+ if len(changeWatches) == 0 {
+ return nil, ErrNoContent
+ }
+
+ changeWatches.SortByNewest()
+
+ if failed > 0 {
+ return changeWatches, fmt.Errorf("%w: could not get %d watches", ErrPartialContent, failed)
+ }
+
+ return changeWatches, nil
+}
diff --git a/internal/feed/primitives.go b/internal/feed/primitives.go
index 99d6763..70e54a1 100644
--- a/internal/feed/primitives.go
+++ b/internal/feed/primitives.go
@@ -48,6 +48,14 @@ type AppRelease struct {
type AppReleases []AppRelease
+type ChangeWatch struct {
+ Name string
+ Url string
+ LastChanged time.Time
+}
+
+type ChangeWatches []ChangeWatch
+
type Video struct {
ThumbnailUrl string
Title string
@@ -200,6 +208,14 @@ func (r AppReleases) SortByNewest() AppReleases {
return r
}
+func (r ChangeWatches) SortByNewest() ChangeWatches {
+ sort.Slice(r, func(i, j int) bool {
+ return r[i].LastChanged.After(r[j].LastChanged)
+ })
+
+ return r
+}
+
func (v Videos) SortByNewest() Videos {
sort.Slice(v, func(i, j int) bool {
return v[i].TimePosted.After(v[j].TimePosted)
diff --git a/internal/widget/changedetection.go b/internal/widget/changedetection.go
new file mode 100644
index 0000000..589147e
--- /dev/null
+++ b/internal/widget/changedetection.go
@@ -0,0 +1,51 @@
+package widget
+
+import (
+ "context"
+ "html/template"
+ "time"
+
+ "github.com/glanceapp/glance/internal/assets"
+ "github.com/glanceapp/glance/internal/feed"
+)
+
+type ChangeDetections struct {
+ widgetBase `yaml:",inline"`
+ ChangeDetections feed.ChangeWatches `yaml:"-"`
+ Watches []string `yaml:"watches"`
+ Token OptionalEnvString `yaml:"token"`
+ Limit int `yaml:"limit"`
+ CollapseAfter int `yaml:"collapse-after"`
+}
+
+func (widget *ChangeDetections) Initialize() error {
+ widget.withTitle("Changes").withCacheDuration(2 * time.Hour)
+
+ if widget.Limit <= 0 {
+ widget.Limit = 10
+ }
+
+ if widget.CollapseAfter == 0 || widget.CollapseAfter < -1 {
+ widget.CollapseAfter = 5
+ }
+
+ return nil
+}
+
+func (widget *ChangeDetections) Update(ctx context.Context) {
+ watches, err := feed.FetchLatestDetectedChanges(widget.Watches, string(widget.Token))
+
+ if !widget.canContinueUpdateAfterHandlingErr(err) {
+ return
+ }
+
+ if len(watches) > widget.Limit {
+ watches = watches[:widget.Limit]
+ }
+
+ widget.ChangeDetections = watches
+}
+
+func (widget *ChangeDetections) Render() template.HTML {
+ return widget.render(widget, assets.ChangesTemplate)
+}
diff --git a/internal/widget/widget.go b/internal/widget/widget.go
index 367d822..e7ec293 100644
--- a/internal/widget/widget.go
+++ b/internal/widget/widget.go
@@ -43,8 +43,10 @@ func New(widgetType string) (Widget, error) {
return &TwitchGames{}, nil
case "twitch-channels":
return &TwitchChannels{}, nil
+ case "changes":
+ return &ChangeDetections{}, nil
default:
- return nil, fmt.Errorf("unknown widget type: %s", widgetType)
+ return nil, fmt.Errorf("unknown widget type: %s found", widgetType)
}
}