#!/usr/bin/env bash
set -euo pipefail

map_to_windows_path() {
  local v="$1"
  if [[ "$v" == /*/* ]]; then
    winepath -w "$v" 2>/dev/null || printf '%s' "$v"
  else
    printf '%s' "$v"
  fi
}

args=()
out_header=""
expect_out_header=0
for arg in "$@"; do
  if [[ "$expect_out_header" -eq 1 ]]; then
    out_header="$arg"
    expect_out_header=0
  elif [[ "$arg" == "/Fh" ]]; then
    expect_out_header=1
  fi

  args+=("$(map_to_windows_path "$arg")")
done

WINEDEBUG=-all "@LCE_WINE_PROGRAM@" "@LCE_FXC_EXE@" "${args[@]}"
status=$?

if [[ "$status" -eq 0 && -n "$out_header" && -f "$out_header" ]]; then
  tmp="${out_header}.tmp.$$"
  # normalize CRLF and #endif arguments
  LC_ALL=C awk '
    BEGIN {
      has_if0 = 0
      has_endif = 0
      inserted = 0
    }
    {
      sub(/\r$/, "")

      if (index($0, "#if 0") == 1) {
        has_if0 = 1
      }

      if (index($0, "#endif") > 0) {
        print "#endif"
        has_endif = 1
        next
      }

      if (has_if0 && !has_endif && !inserted && index($0, "const BYTE ") == 1) {
        print "#endif"
        inserted = 1
        has_endif = 1
      }

      print $0
    }
    END {
      if (has_if0 && !has_endif) {
        print "#endif"
      }
    }
  ' "$out_header" > "$tmp" && mv "$tmp" "$out_header"
fi

exit "$status"