Several changes

cache.go

@@ -4,19 +4,29 @@ package main
 // It also does the same for images that need to be grabbed from HTTP.
 
 import (
-	"github.com/diamondburned/gotk4/pkg/gdk/v4"
-	"github.com/diamondburned/gotk4/pkg/gtk/v4"
 	"crypto/sha256"
 	"fmt"
-	"net/http"
+	"github.com/diamondburned/gotk4/pkg/gdk/v4"
+	"github.com/diamondburned/gotk4/pkg/gtk/v4"
 	"io"
+	"net/http"
 	"os"
+	"path/filepath"
+	"github.com/kirsle/configdir"
 )
 
 // global or app-level map/cache
 var textureCache = make(map[string]gdk.Paintabler)
 
+func ensureCache() (string, error) {
+	cachePath := configdir.LocalCache("lambda-im")
+	err := configdir.MakePath(cachePath) // Ensure it exists.
+	if err != nil {
+		return "", err
+	}
 
+	return cachePath, nil
+}
 
 func getTexture(path string) gdk.Paintabler {
 	if tex, exists := textureCache[path]; exists {
@@ -43,6 +53,7 @@ func newImageFromPath(path string) *gtk.Image {
 }
 
 func newPictureFromWeb(url string) *gtk.Picture {
+	pa, _ := ensureCache()
 	// step 1: get a sha256 sum of the URL
 	sum := fmt.Sprintf("%x", sha256.Sum256([]byte(url)))
 
@@ -62,16 +73,19 @@ func newPictureFromWeb(url string) *gtk.Picture {
 		return nil
 	}
 
+	fullpath := filepath.Join(pa, sum)
+
 	// step 3: save it
-	err = os.WriteFile(sum, b, 0644)
+	err = os.WriteFile(fullpath, b, 0644)
 	if err != nil {
 		return nil
 	}
 
-	return newPictureFromPath(sum)
+	return newPictureFromPath(fullpath)
 }
 
 func newImageFromWeb(url string) *gtk.Image {
+	pa, _ := ensureCache()
 	// step 1: get a sha256 sum of the URL
 	sum := fmt.Sprintf("%x", sha256.Sum256([]byte(url)))
 
@@ -91,11 +105,14 @@ func newImageFromWeb(url string) *gtk.Image {
 		return nil
 	}
 
+
+	fullpath := filepath.Join(pa, sum)
+
 	// step 3: save it
-	err = os.WriteFile(sum, b, 0644)
+	err = os.WriteFile(fullpath, b, 0644)
 	if err != nil {
 		return nil
 	}
 
-	return newImageFromPath(sum)
+	return newImageFromPath(fullpath)
 }