#!/bin/bash
# Create the data partition image with ROM directory structure.
set -e

script_dir="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"

image="$1"

if [ -z "$image" ]; then
    echo "Usage: $0 IMAGE"
    exit 1
fi

# Build guestfish commands to create exFAT filesystem with ROM dirs
script=(
    "run"
    "mkfs vfat /dev/sda label:ROMS"
    "mount /dev/sda /"
)

# Create ROM directories
while IFS= read -r dir; do
    [ -z "$dir" ] && continue
    [[ "$dir" =~ ^# ]] && continue
    script+=("mkdir \"/roms/$dir\"")
done < "$script_dir/rom-dirs.txt"

# Create support directories
script+=("mkdir \"/roms/bios\"")
script+=("mkdir \"/roms/saves\"")
script+=("mkdir \"/roms/screenshots\"")

for cmd in "${script[@]}"; do
    echo "$cmd"
done | guestfish --format=raw -a "$image"

echo "Data partition image created at $image"