#!/bin/bash
set -e

out="$1"; shift
tsconfig="$1"; shift

files_json='['
for f in "$@"; do
	files_json="${files_json}\"$f\", "
done
files_json="$files_json]"

our_tsconfig=".tsconfig.${out##*/}.json"

x () {
    echo "+ $*" >&2;
    "$@";
}

sed <"$tsconfig" >"$our_tsconfig" '/^ *"files":/ s#:.*#:'"$files_json"'#'

x tsc --outfile "$out.1.tmp" -p "$our_tsconfig" 2>&1 \
| perl -pe 's/\((\d+),(\d+)\):/:$1:$2:/' >&2
test "${PIPESTATUS[*]}" = "0 0"

sed    <"$out.1.tmp" '/^[a-z]/,$d' > "$out".tmp
echo "// autogenerated from $@"    >>"$out".tmp
sed    <"$1"         '/^[a-z]/,$d' >>"$out".tmp
sed -n <"$out.1.tmp" '/^[a-z]/,$p' >> "$out".tmp

mv -f "$out".tmp "$out"