fetch-art

#!/bin/bash

set -e

cd "$(dirname "$0")"
source ./common

platform="$(get_platform)"
if [ -z "$platform" ]; then
  exit
fi

source="$("$platform"_get_source)"
art="$("$platform"_get_art)"

data_dir="$(realpath ../data)"
mkdir -p "$data_dir"
cache_path="$data_dir/$source.cache"
img_path="$data_dir/$source.png"

touch "$cache_path"
content="$(cat "$cache_path")"
expected_content="$art $NOW_CLOCKING_ARTWORK_TINT"

if [ "$content" != "$expected_content" ]; then
  echo "$expected_content" > "$cache_path"
  test -f "$img_path" && rm "$img_path"
  if [ -n "$art" ]; then
    if [[ "$art" = http* ]] || [[ "$art" = file:* ]]; then
      curl -s "$art" -o "$img_path"
    elif [ -f "$art" ]; then
      cp "$art" "$img_path"
    else 
      echo "unknown art: $art" >&2
      exit 1
    fi
    if [ -n "$NOW_CLOCKING_ARTWORK_TINT" ] && command -v convert >/dev/null; then
      convert "$img_path" -colorspace gray -fill "$NOW_CLOCKING_ARTWORK_TINT" -tint 100 "$img_path"
    fi
  fi
fi

if [ -f "$img_path" ] && [ "$(wc -c "$img_path" | awk '{print $1}')" -gt 0 ]; then
  echo "\${image $img_path -p 0,0 -s 125x125 -n}"
else
  echo "\${image ./placeholder.png -p 0,0 -s 125x125}"
fi