#! /bin/bash

# Set default UID and GID for Kavita but allow overrides
PUID=${PUID:-0}
PGID=${PGID:-0}

# Add Kavita group if it doesn't already exist
if [[ -z "$(getent group "$PGID" | cut -d':' -f1)" ]]; then
    groupadd -o -g "$PGID" kavita
fi

# Add Kavita user if it doesn't already exist
if [[ -z "$(getent passwd "$PUID" | cut -d':' -f1)" ]]; then
    useradd -o -u "$PUID" -g "$PGID" -d /kavita kavita
fi

if [ ! -f "/kavita/config/appsettings.json" ]; then
    echo "Kavita configuration file does not exist, creating..."
    echo '{
  "TokenKey": "super secret unguessable key",
  "Port": 5000
}' >> /kavita/config/appsettings.json
fi

chmod +x Kavita

if [[ "$PUID" -eq 0 ]]; then
    # Run as root
    ./Kavita
else
    # Set ownership on config dir if running non-root and current ownership is different
    if [[ ! "$(stat -c %u /kavita/config)" = "$PUID" ]]; then
        echo "Specified PUID differs from Kavita config dir ownership, updating permissions now..."
        if [[ ! "$(stat -c %g /kavita/config)" = "$PGID" ]]; then
            chown -R "$PUID":"$PGID" /kavita/config
        else
            chown -R "$PUID" /kavita/config
        fi

    elif [[ ! "$(stat -c %g /kavita/config)" = "$PGID" ]]; then
        echo "Specified PGID differs from Kavita config dir ownership, updating permissions now..."
        chgrp -R "$PGID" /kavita/config
    fi

    # Run as non-root user
    su -l kavita -c ./Kavita
fi