update satalite-wp-update script to use the proper API ends

usr/bin/satalite-wp-update

@@ -4,9 +4,13 @@
 # set -xv
 EUMETSAT_KEY="jdBM1PsDQUm0tCZfk9VXD6IaJoUa"
 EUMETSAT_SECRET="SumkiqFMU3MAGpt_azb1KXKgjdMa"
-URL="https://api.eumetsat.int/data"
-COL_ID="EO%3AEUM%3ADAT%3A0665"
 
+error() {
+	printf "\033[31m%s\033[0m\n" "$1"
+	exit 1
+}
+
+# verify internet
 ping -c1 1.1.1.1 >>/dev/null || error "couldn't establish an internet connection!"
 
 # acquire the output directory
@@ -19,35 +23,29 @@ else
 fi
 
 # acquire the API key
-EUMETSAT_API=$(
+key=$(
 	curl -k -d "grant_type=client_credentials" \
 		-H "Authorization: Basic $(printf "%s:%s" "$EUMETSAT_KEY" "$EUMETSAT_SECRET" | base64)" \
 		https://api.eumetsat.int/token | jq -r '.["access_token"]'
 )
 
-error() {
-	printf "\033[31m%s\033[0m\n" "$1"
-	exit 1
-}
+# set url
+url="https://view.eumetsat.int/geoserver/wms?"
+url+="&service=WMS"
+url+="&request=GetMap"
+url+="&version=1.3.0"
+url+="&layers=mtg_fd:rgb_geocolour"
+url+="&width=1080&height=1080"
+url+="&bbox=-6400000,-6400000,6400000,6400000"
+url+="&crs=AUTO:42003,9001,0,0"
+url+="&styles="
+url+="&format=image/png"
+url+="&access_token=$key"
 
-apireq() {
-	curl -k -H "Authorization: Bearer $EUMETSAT_API" "$URL/$1" "${@:2}"
-}
-
-DATE="$(date -u +'%Y/%m/%d')"
-product=$(
-	apireq "browse/collections/$COL_ID/dates/$DATE/products?format=json" |
-		jq -r '.["products"].[0].["id"] | @uri'
-)
-
-[ -z "$product" ] && error "was unable to locate the latest product!"
-
-mkdir -p "$outdir"
-apireq "download/1.0.0/collections/$COL_ID/products/$product/browse" -o "$outdir/tmp.jpeg" || error "failed to download!"
-mv -f "$outdir/tmp.jpeg" "$outdir/curr.jpeg"
-
-# negate since default is rubbish
-ffmpeg -y -i photos/eumetsat/curr.jpeg -vf negate photos/eumetsat/curr.jpeg
+# process incoming data
+[ ! -d "$outdir" ] && { mkdir -p "$outdir" || error "failed to access '$outdir'!"; }
+curl "$url" -o "$outdir/tmp.png" || error "failed to download from url='$url'!"
+mv -f "$outdir/tmp.png" "$outdir/curr.png"
 
 # update the feh background
 . "$HOME/.fehbg"