#!/usr/bin/env bash
set -u

repo_dir="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd -P)"
# shellcheck source=../source.sh
source "$repo_dir/source.sh"

status=0
check() {
  local label="$1"
  local command_path="$2"
  shift 2
  if [[ -n "$command_path" && -x "$command_path" ]] && "$command_path" "$@" >/dev/null 2>&1; then
    printf 'OK       %-10s %s\n' "$label" "$command_path"
  else
    printf 'MISSING  %-10s %s\n' "$label" "${command_path:-not found}"
    status=1
  fi
}

printf 'Project:  %s\n' "$GPS_ROOT"
printf 'Platform: %s-%s\n' "$(uname -s)" "$(uname -m)"
check java "$JAVA_HOME/bin/java" -version
check mill "$MILL" --version
check firtool "$FIRTOOL" --version

riscv_gcc=""
if [[ -n "$TOOLCHAIN" ]]; then
  riscv_gcc="$TOOLCHAIN/${RISCV_PREFIX}gcc"
fi
check riscv-gcc "$riscv_gcc" --version

if [[ -n "$riscv_gcc" && -x "$riscv_gcc" ]]; then
  medany_dir="$(mktemp -d "${TMPDIR:-/tmp}/gps-medany-check.XXXXXXXX")"
  printf '%s\n' \
    '#include <stdlib.h>' \
    'void _start(void) { void *p = malloc(16); free(p); for (;;) {} }' \
    > "$medany_dir/check.c"
  if "$riscv_gcc" \
      -march=rv64imafdc_zicsr_zifencei -mabi=lp64d -mcmodel=medany \
      -Os -ffreestanding -fno-builtin -static -nostartfiles \
      -Wl,-Ttext=0x80000000 -Wl,--unresolved-symbols=ignore-all \
      "$medany_dir/check.c" -Wl,--start-group -lc -lgcc -Wl,--end-group \
      -o "$medany_dir/check.elf" >/dev/null 2>&1; then
    printf 'OK       %-10s %s\n' riscv-libc 'medany @ 0x80000000'
  else
    printf 'INCOMPAT %-10s %s\n' riscv-libc \
      'libc is not medany; select RISCV_TOOLCHAIN=/tools/toolchains/rvtc-medany'
    status=1
  fi
  rm -rf "$medany_dir"
fi

if [[ "$(uname -s)" != Linux || "$(uname -m)" != x86_64 ]]; then
  printf 'WARNING  Kilitli JDK/CIRCT paketleri Linux-x86_64 icindir.\n'
fi

exit "$status"