#!/usr/bin/env bash

# Konfiguration
LOG_FILE="/var/log/nm-captive.log"

# Log-Funktion
log() {
    echo "$(date '+%Y-%m-%d %H:%M:%S') - $1" >> "$LOG_FILE"
}

check_captive_portal() {
    # Teste mit Google's Connectivity Check (sollte 204 zurückgeben)
    local url="http://connectivitycheck.gstatic.com/generate_204"
    local http_code=$(curl -s -o /dev/null -w "%{http_code}" --connect-timeout 5 "$url")
    
    if [ $? -ne 0 ]; then
        log "Network error - captive portal likely"
        return 1
    fi
    
    if [ "$http_code" = "204" ]; then
        log "Connectivity check passed (204) - no captive portal"
        return 0
    else
        log "Connectivity check failed (HTTP $http_code) - captive portal detected"
        return 1
    fi
}

log "=== Dispatch triggered: $1 $2 ==="

if [[ "$1" == wl* ]] && [ "$2" = "up" ]; then
    sleep 3
    
    if ! check_captive_portal; then
        log "CAPTIVE PORTAL DETECTED! Opening browser..."
        
        # Finde Benutzer und starte Firefox
        local_user=$(w -hs | grep ":0" | awk '{print $1}' | head -n1)
        if [ -n "$local_user" ]; then
            export DISPLAY=:0
            export XAUTHORITY=/home/$local_user/.Xauthority
            
            # Starte Firefox im Hintergrund
            sudo -u $local_user env DISPLAY=:0 XAUTHORITY=/home/$local_user/.Xauthority \
                firefox --new-window "http://detectportal.firefox.com/canonical.html" &
            log "Firefox started for user $local_user"
        fi
    else
        log "No captive portal detected"
    fi
fi

log "=== Completed ==="