#!/bin/sh
# FabledScryer container entrypoint.
#
# When NUT_MANAGED=1:
#   - Generates /etc/nut/*.conf from environment variables
#   - Starts NUT driver (upsdrvctl) and network daemon (upsd)
#   - Connects to the UPS over the network — no USB passthrough required
#   - Then drops to 'app' user via gosu to run fabledscryer
#
# When NUT_MANAGED=0 (default):
#   - Drops directly to 'app' user and runs the command
#
# Required env vars when NUT_MANAGED=1:
#   NUT_UPS_HOST     IP or hostname of the UPS management card (required)
#   NUT_DRIVER       NUT driver — snmp-ups (default) or netxml-ups for Eaton
#   NUT_UPS_NAME     UPS name in NUT (default: ups) — must match UPS plugin setting
#   NUT_SNMP_COMMUNITY  SNMP community string (default: public) [snmp-ups only]
#   NUT_SNMP_VERSION    SNMP version: v1, v2c (default: v1) [snmp-ups only]
#   NUT_USERNAME     Optional upsd auth username
#   NUT_PASSWORD     Optional upsd auth password

set -e

NUT_MANAGED_JSON="/data/nut_managed.json"

if [ "${NUT_MANAGED:-0}" = "1" ] || [ -f "$NUT_MANAGED_JSON" ]; then
    NUT_OK=1
    if [ -f "$NUT_MANAGED_JSON" ]; then
        echo "[entrypoint] Found $NUT_MANAGED_JSON — configuring NUT from settings..."
        python3 /app/fabledscryer/nut_setup.py --from-file "$NUT_MANAGED_JSON" || {
            echo "[entrypoint] Warning: NUT config failed — UPS host may not be set yet. Skipping NUT startup."
            NUT_OK=0
        }
    else
        echo "[entrypoint] NUT_MANAGED=1 — configuring NUT from environment..."
        python3 /app/fabledscryer/nut_setup.py || {
            echo "[entrypoint] Warning: NUT config failed — check NUT_UPS_HOST. Skipping NUT startup."
            NUT_OK=0
        }
    fi

    if [ "$NUT_OK" = "1" ]; then
        echo "[entrypoint] Starting NUT driver..."
        /sbin/upsdrvctl start || echo "[entrypoint] Warning: upsdrvctl returned non-zero"

        echo "[entrypoint] Starting NUT daemon..."
        /sbin/upsd || echo "[entrypoint] Warning: upsd returned non-zero"

        sleep 1
        echo "[entrypoint] NUT ready on 127.0.0.1:3493."
    fi
fi

exec gosu app "$@"