#!/bin/bash
set -euo pipefail

IMG="boot.img"
IMG_SIZE_KB=4096
TARGET="riscv64gc-unknown-none-elf"
BUILD_DIR="target/${TARGET}/release"

echo "=== Creating k-os boot disk image ==="

dd if=/dev/zero of="${IMG}" bs=1K count=${IMG_SIZE_KB} 2>/dev/null
mformat -i "${IMG}" -t 8 -h 2 -s 32 -r 16 -c 1 -M 512 ::
echo "Created and formatted ${IMG} (${IMG_SIZE_KB}KB, FAT16)"

# Copy with 8.3 names (no long filenames, no tilde mangling)
copy() {
    local src="$1" dst="$2"
    if [ -f "${BUILD_DIR}/${src}" ]; then
        mcopy -i "${IMG}" "${BUILD_DIR}/${src}" "::${dst}"
        echo "  ${dst}"
    fi
}

copy init       "init.elf"
copy echo       "echo.elf"
copy snake      "snake.elf"
copy display-qemu   "display.elf"
copy input-server   "input.elf"
copy log-server     "log.elf"
copy permission-manager "permis.elf"
copy storage-qemu   "storage.elf"
copy session-server "session.elf"

echo ""
echo "Disk contents:"
mdir -i "${IMG}" ::
echo "=== Done: ${IMG} ==="