#!/bin/bash

set -euo pipefail

quiet_stderr=false
for arg; do
  if [[ "$arg" == '--out' ]] || echo "$arg" | grep -qE '^--out='; then
    echo 'Cannot specify --out parameter; the image file will be written to stdout.' >&2
    exit 1
  fi
  if [[ "$arg" == '--quiet_stderr' ]]; then
    quiet_stderr=true
  fi
done

# Try to find out pixel size of the shell.
terminal_pixel_width=0
terminal_pixel_height=0
if [[ -t 1 ]]; then
  echo -e -n '\e[14t'; IFS=';' read -rs -t 0.5 -d 't' rest height width <$(tty)
  terminal_pixel_width="$width"
  terminal_pixel_height="$height"
fi

out_dir="$(mktemp -d)"

set +e
  /generate_image.py \
    --out="$out_dir/out_image" \
    --terminal_pixel_width="$terminal_pixel_width" \
    --terminal_pixel_height="$terminal_pixel_height" \
    "$@" \
    1>/dev/null \
    2>"$out_dir/stderr"
  return_code="$?"
set -e

if [[ "$return_code" == 0 ]]; then
  cat "$out_dir/out_image"
fi
if [[ "$return_code" != 0 ]] || [[ "$quiet_stderr" == false ]]; then
  cat "$out_dir/stderr" >&2
fi
rm -rf "$out_dir"
exit "$return_code"