#!/bin/bash

bold=$(tput bold)
normal=$(tput sgr0)

log() {
    echo "${bold}${1}${normal}"
}

# $1 - current value
# $2 - maximum value (the "100%" value)
progressbar() {
    local width=80

    if [ $1 -eq -1 ]; then
        printf "\r  %*s\r" "$width"
    else
        i=$(($1 * $width / $2))
        j=$(($width - $i))
        printf "\r[%*s" "$i" | tr ' ' '#'
        printf "%*s]\r" "$j"
    fi
}

blue_marble_url_prefix="https://eoimages.gsfc.nasa.gov/images/imagerecords/73000/73909/"
blue_marble_prefix="world.topo.bathy.200412.3x21600x21600."

if [ ! -d assets/nasa_blue_marble ]; then
    log "Downloading NASA Blue Marble images ..."

    wget --directory-prefix assets/nasa_blue_marble --quiet --show-progress \
        "${blue_marble_url_prefix}${blue_marble_prefix}A1.jpg" \
        "${blue_marble_url_prefix}${blue_marble_prefix}A2.jpg" \
        "${blue_marble_url_prefix}${blue_marble_prefix}B1.jpg" \
        "${blue_marble_url_prefix}${blue_marble_prefix}B2.jpg" \
        "${blue_marble_url_prefix}${blue_marble_prefix}C1.jpg" \
        "${blue_marble_url_prefix}${blue_marble_prefix}C2.jpg" \
        "${blue_marble_url_prefix}${blue_marble_prefix}D1.jpg" \
        "${blue_marble_url_prefix}${blue_marble_prefix}D2.jpg"
fi

if [ ! -d assets/noaa_globe ]; then
    log "Downloading NOAA GLOBE elevation data ..."

    temp_file=$(mktemp)
    wget --quiet --show-progress --output-document $temp_file \
        https://www.ngdc.noaa.gov/mgg/topo/DATATILES/elev/all10g.zip
    unzip -j $temp_file -d assets/noaa_globe
    rm $temp_file
fi