#!/bin/ash

# Define the main package name and list file location
PKG_NAME="sdxpinn-mount-fix"
LIST_FILE="/usr/lib/opkg/info/${PKG_NAME}.list"
STATUS_FILE="/usr/lib/opkg/status"

# Define variables for lock handling
force_write=false

# Function to display a menu and get user input
handle_file_lock() {
    echo "File $STATUS_FILE is currently locked."
    echo "Please choose an option:"
    echo "1. Force Write"
    echo "2. Wait for the file to unlock"
    echo "3. Abort"
    echo -n "Enter your choice: "
    read choice

    case $choice in
        1)
            echo "Forcing write..."
            force_write=true
            ;;
        2)
            echo "Waiting for the file to unlock..."
            force_write=false
            ;;
        3)
            echo "Aborting..."
            exit 1
            ;;
        *)
            echo "Invalid option. Aborting."
            exit 1
            ;;
    esac
}

# Function to handle bundled packages post-install
handle_bundled_postinst() {
    local bundled_package_name="$1"

    # Use the target package name for default_postinst instead of $0
    if [ "${IPKG_NO_SCRIPT}" = "1" ]; then
        return 0
    fi

    # Source the necessary functions only once
    if [ -s "${IPKG_INSTROOT}/lib/functions.sh" ]; then
        . "${IPKG_INSTROOT}/lib/functions.sh"
    else
        echo "Error: ${IPKG_INSTROOT}/lib/functions.sh not found."
        return 1
    fi

    echo "Executing default_postinst for bundled package: $bundled_package_name"
    default_postinst "$bundled_package_name" $@
    return $?
}

## Function to update the status file for a given bundled package
update_status_file() {
    local bundled_package_name="$1"
    local bundled_control_file="/usr/lib/opkg/info/${bundled_package_name}.control"

    if [ ! -f "$bundled_control_file" ]; then
        echo "Control file for bundled package $bundled_package_name not found: $bundled_control_file"
        return 1
    fi

    # Construct a temporary file for the new status entry
    local tmp_status_entry="/tmp/status_entry_$bundled_package_name"
    
    # Start with the content from the control file
    cp "$bundled_control_file" "$tmp_status_entry"

    # Append necessary fields to the temporary status file
    {
        # Add the status line indicating the package is 'user installed'
        echo "Status: install user installed"

        # Add the architecture
        echo "Architecture: aarch64_cortex-a53"

        # Timestamp for when the package was installed
        echo "Installed-Time: $(date +%s)"
    } >> "$tmp_status_entry"

    # Check if the status file is locked and handle accordingly
    if ! flock -n "$STATUS_FILE" true; then
        handle_file_lock
    fi

    if [ "$force_write" = true ]; then
        # Force write: use flock to lock and update the file
        flock -x "$STATUS_FILE" sh -c "cat $tmp_status_entry >> $STATUS_FILE"
    else
        # Wait for the lock to be released
        echo "Waiting for the lock to release..."
        flock "$STATUS_FILE" sh -c "cat $tmp_status_entry >> $STATUS_FILE"
    fi

    # Cleanup temporary file
    rm -f "$tmp_status_entry"

    # Sync the filesystem to ensure the changes are flushed
    sync

    # Verify the entry was added
    if grep -q "^Package: $bundled_package_name$" "$STATUS_FILE"; then
        echo "Successfully added bundled package $bundled_package_name to $STATUS_FILE"
    else
        echo "Error: Failed to add bundled package $bundled_package_name to $STATUS_FILE"
    fi
}

# Replace distfeeds.conf with non-working sources commented out
if [ -f /tmp/distfeeds.conf ]; then
    # Backup and replace distfeeds.conf
    [ -f /etc/opkg/distfeeds.conf ] && cp /etc/opkg/distfeeds.conf /etc/opkg/distfeeds.conf.bak
    mv /tmp/distfeeds.conf /etc/opkg/distfeeds.conf
    echo "Replaced /etc/opkg/distfeeds.conf with the custom version."
else
    echo "Error: /tmp/distfeeds.conf not found. Cannot replace /etc/opkg/distfeeds.conf."
    exit 1
fi

echo "Combo package cleanup in progress..."

# Remove entries in the .list file that refer to opkg control files
if [ -f "$LIST_FILE" ]; then
    sed -i '/^\/usr\/lib\/opkg\/info\//d' "$LIST_FILE"
    echo "Removed control file entries from $LIST_FILE."
else
    echo "Warning: ${LIST_FILE} not found."
fi

# Make the init scripts and binaries executable
chmod +x /etc/init.d/mount-fix /etc/init.d/init-overlay-watchdog /usr/sbin/init-overlay-watchdog.sh

# Enable and start the services
echo "Starting services..."
service mount-fix enable
service mount-fix start
sleep 1
service init-overlay-watchdog enable
service init-overlay-watchdog start

echo -e "\e[32m sdxpinn-mount-fix installed! Here is the new file structure! \e[0m"
echo -e "\e[32m ============================================================ \e[0m"
mount && df -h
echo -e "\e[32m ============================================================ \e[0m"
echo -e "\e[32m sdxpinn-mount-fix installed! New file structure above! \e[0m"

# Use a space-separated string for the bundled packages
BUNDLED_PACKAGES="libinotifytools inotifywait"

# Iterate through each bundled package and update status
for bundled_package_name in $BUNDLED_PACKAGES; do
    # Run postinst for each bundled package
    handle_bundled_postinst "$bundled_package_name"

    # Update the status file for each bundled package
    update_status_file "$bundled_package_name"
done

exit 0