Added initial support for global offline ETC maps. The global zoom is set to 6 due to space constraints

scripts/download-et-maps.sh

@@ -1,31 +1,43 @@
 #!/bin/bash
 # Author   : Gaston Gonzalez
 # Date     : 6 July 2025
+# Updated  : 20 November 2025
 # Purpose  : Downloads pre-rendered raster map tiles in mbtile format
 
 BASE_URL="https://github.com/thetechprepper/emcomm-tools-os-community/releases/download"
 RELEASE="emcomm-tools-os-community-20250401-r4-final-4.0.0"
 TILESET_DIR="/etc/skel/.local/share/emcomm-tools/mbtileserver/tilesets"
 
+# Display names for the menu
 OPTIONS=(
   "us" "United States"
   "ca" "Canada"
+  "world" "Global Map"
 )
 
-SELECTED_COUNTRY=$(dialog --clear --menu "Select a country" 15 40 5 "${OPTIONS[@]}"  2>&1 >/dev/tty)
+# Map each option to its corresponding file name
+declare -A FILES
+FILES=(
+  ["us"]="osm-us-zoom0to10-20250703.mbtiles"
+  ["ca"]="osm-ca-zoom0to10-20250703.mbtiles"
+  ["world"]="osm-world-zoom0to6-20251120.mbtiles"
+)
+
+# Show dialog
+SELECTED_COUNTRY=$(dialog --clear --menu "Select a country" 15 40 5 "${OPTIONS[@]}" 2>&1 >/dev/tty)
 EXIT_STATUS=$?
 
-tput sgr 0 && clear
+tput sgr0 && clear
 
 if [[ $EXIT_STATUS -eq 0 ]]; then
-  DOWNLOAD_FILE="osm-${SELECTED_COUNTRY}-zoom0to10-20250703.mbtiles"
+  DOWNLOAD_FILE="${FILES[$SELECTED_COUNTRY]}"
   DOWNLOAD_URL="${BASE_URL}/${RELEASE}/${DOWNLOAD_FILE}"
 
   if [[ ! -e ${DOWNLOAD_FILE} ]]; then
     et-log "Downloading ${DOWNLOAD_URL}"
-    curl -L -f -o ${DOWNLOAD_FILE} ${DOWNLOAD_URL}
+    curl -L -f -o "${DOWNLOAD_FILE}" "${DOWNLOAD_URL}"
   fi
 
-  et-log "Moving ${DOWNLOAD_FILE} ${TILESET_DIR}"
-  mv -v ${DOWNLOAD_FILE} ${TILESET_DIR}
+  et-log "Moving ${DOWNLOAD_FILE} to ${TILESET_DIR}"
+  mv -v "${DOWNLOAD_FILE}" "${TILESET_DIR}"
 fi