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#!/usr/bin/env sh
set -eu
[ $# -lt 1 ] && echo "Fuck" && exit 1;
IMAGE_ID="$1"
DB="${2:-fun.db}"
db() { sqlite3 -tabs -noheader "$DB" "$@"; }
ppm() {
local image_id="$1"
echo "P3"
db "SELECT width, height FROM images WHERE id='$image_id'"
echo "255"
db "SELECT r,g,b FROM pixels WHERE image_id='$image_id' ORDER BY y ASC, x ASC"
}
save_png() { magick ppm:- "media/$1.png"; }
display() { magick display ppm:-; }
ppm "$IMAGE_ID" | tee >(save_png "$IMAGE_ID") | display
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