// Discovery kickstart template.
// Boots Fedora installer, collects hardware info, POSTs to bastion, reboots.
// Never touches the disk.

export interface DiscoverKickstartParams {
  serverIp: string;
  httpPort: number;
}

export function renderDiscoverKickstart(params: DiscoverKickstartParams): string {
  const bastionUrl = `http://${params.serverIp}:${params.httpPort}`;

  return `# Lab Bastion -- Discovery Mode
# Collects hardware inventory and reboots. Does NOT install anything.

%pre --erroronfail --log=/tmp/discover.log
#!/bin/bash
set -x

# -- Collect hardware info from /proc, /sys, and available tools --

MAC=$(ip link show | awk '/ether/ && !/00:00:00:00/ {print $2; exit}')
PRODUCT=$(cat /sys/class/dmi/id/product_name 2>/dev/null || echo "unknown")
BOARD=$(cat /sys/class/dmi/id/board_name 2>/dev/null || echo "unknown")
SERIAL=$(cat /sys/class/dmi/id/product_serial 2>/dev/null || echo "unknown")
MANUFACTURER=$(cat /sys/class/dmi/id/sys_vendor 2>/dev/null || echo "unknown")
CPUMODEL=$(grep -m1 'model name' /proc/cpuinfo | cut -d: -f2 | sed 's/^ //')
CPUCORES=$(grep -c '^processor' /proc/cpuinfo)
MEMGB=$(awk '/MemTotal/ {printf "%d", $2/1024/1024}' /proc/meminfo)
ARCHTYPE=$(uname -m)

# Disk info
DISKS_JSON=$(lsblk -Jb -o NAME,SIZE,TYPE,MODEL 2>/dev/null | python3 -c "
import sys, json
data = json.load(sys.stdin)
disks = [d for d in data.get('blockdevices', []) if d.get('type') == 'disk']
result = []
for d in disks:
    size_gb = round(int(d.get('size', 0)) / 1073741824, 1)
    result.append({
        'name': d.get('name', '?'),
        'size_gb': size_gb,
        'model': (d.get('model') or 'unknown').strip()
    })
print(json.dumps(result))
" 2>/dev/null || echo '[]')

# Network interfaces
NICS_JSON=$(ip -j link show 2>/dev/null | python3 -c "
import sys, json
nics = json.load(sys.stdin)
result = []
for n in nics:
    if n.get('link_type') == 'loopback':
        continue
    result.append({
        'name': n.get('ifname', '?'),
        'mac': n.get('address', '?'),
        'state': n.get('operstate', '?')
    })
print(json.dumps(result))
" 2>/dev/null || echo '[]')

# -- Build and POST discovery payload --

PAYLOAD=$(python3 -c "
import json
print(json.dumps({
    'mac': '$MAC',
    'product': '$PRODUCT',
    'board': '$BOARD',
    'serial': '$SERIAL',
    'manufacturer': '$MANUFACTURER',
    'cpu_model': '$CPUMODEL',
    'cpu_cores': int('$CPUCORES' or 0),
    'memory_gb': int('$MEMGB' or 0),
    'arch': '$ARCHTYPE',
    'disks': $DISKS_JSON,
    'nics': $NICS_JSON
}))
")

# POST to bastion
BASTION_URL="${bastionUrl}/api/discover"

if command -v curl >/dev/null 2>&1; then
    curl -sf -X POST "$BASTION_URL" \\
        -H "Content-Type: application/json" \\
        -d "$PAYLOAD" || true
else
    python3 -c "
import urllib.request
req = urllib.request.Request('$BASTION_URL',
    data=b'''$PAYLOAD''',
    headers={'Content-Type': 'application/json'})
try:
    urllib.request.urlopen(req, timeout=10)
except Exception as e:
    print(f'POST failed: {e}')
"
fi

# -- Reboot -- do NOT let Anaconda proceed --
echo ""
echo "=== Discovery complete, rebooting ==="
echo ""
sleep 3
echo 1 > /proc/sys/kernel/sysrq
echo b > /proc/sysrq-trigger
sleep 5
reboot -f

%end

# Anaconda should never get here, but just in case:
reboot
`;
}