#!/bin/bash
source ~/.bashrc
# Configure Cloud-Init on Proxmox VMs via API
# Sets up IP addresses, users, and basic configuration

set -e

SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
PROJECT_ROOT="$(cd "$SCRIPT_DIR/../.." && pwd)"

# Load environment variables
if [ -f "$PROJECT_ROOT/.env" ]; then
    set -a
    source <(grep -v '^#' "$PROJECT_ROOT/.env" | grep -v '^$' | sed 's/#.*$//' | grep '=')
    set +a
fi

# Colors
RED='\033[0;31m'
GREEN='\033[0;32m'
YELLOW='\033[1;33m'
NC='\033[0m'

PVE_USERNAME="${PVE_USERNAME:-root@pam}"
PVE_PASSWORD="${PVE_ROOT_PASS:-}"
PROXMOX_URL="${PROXMOX_ML110_URL:-https://192.168.1.206:8006}"
PROXMOX_NODE="${PROXMOX_NODE:-pve}"

log_info() {
    echo -e "${GREEN}[INFO]${NC} $1"
}

log_warn() {
    echo -e "${YELLOW}[WARN]${NC} $1"
}

log_error() {
    echo -e "${RED}[ERROR]${NC} $1"
}

get_api_token() {
    local response=$(curl -s -k --connect-timeout 10 --max-time 15 \
        -d "username=$PVE_USERNAME&password=$PVE_PASSWORD" \
        "$PROXMOX_URL/api2/json/access/ticket" 2>&1)
    
    if echo "$response" | grep -q '"data"'; then
        local ticket=$(echo "$response" | grep -o '"ticket":"[^"]*' | cut -d'"' -f4)
        local csrf_token=$(echo "$response" | grep -o '"CSRFPreventionToken":"[^"]*' | cut -d'"' -f4)
        echo "$ticket|$csrf_token"
    else
        echo ""
    fi
}

configure_vm_cloudinit() {
    local vmid=$1
    local name=$2
    local ip=$3
    local gateway=$4
    local user=$5
    
    log_info "Configuring cloud-init for VM $vmid ($name)..."
    
    local tokens=$(get_api_token)
    if [ -z "$tokens" ]; then
        log_error "Failed to authenticate with Proxmox"
        return 1
    fi
    
    local ticket=$(echo "$tokens" | cut -d'|' -f1)
    local csrf_token=$(echo "$tokens" | cut -d'|' -f2)
    
    # Configure cloud-init settings
    local response=$(curl -s -k -X PUT \
        -H "Cookie: PVEAuthCookie=$ticket" \
        -H "CSRFPreventionToken: $csrf_token" \
        -d "ipconfig0=ip=$ip/24,gw=$gateway" \
        -d "ciuser=$user" \
        -d "cipassword=" \
        "$PROXMOX_URL/api2/json/nodes/$PROXMOX_NODE/qemu/$vmid/config" 2>&1)
    
    if echo "$response" | grep -q '"data"'; then
        log_info "VM $vmid cloud-init configured successfully"
        return 0
    else
        log_error "Failed to configure VM $vmid: $response"
        return 1
    fi
}

start_vm() {
    local vmid=$1
    local name=$2
    
    log_info "Starting VM $vmid ($name)..."
    
    local tokens=$(get_api_token)
    local ticket=$(echo "$tokens" | cut -d'|' -f1)
    local csrf_token=$(echo "$tokens" | cut -d'|' -f2)
    
    local response=$(curl -s -k -X POST \
        -H "Cookie: PVEAuthCookie=$ticket" \
        -H "CSRFPreventionToken: $csrf_token" \
        "$PROXMOX_URL/api2/json/nodes/$PROXMOX_NODE/qemu/$vmid/status/start" 2>&1)
    
    if echo "$response" | grep -q '"data"'; then
        log_info "VM $vmid started successfully"
        return 0
    else
        log_warn "VM $vmid may already be running or start failed: $response"
        return 0
    fi
}

main() {
    log_info "Configuring cloud-init on all service VMs"
    
    if [ -z "$PVE_PASSWORD" ]; then
        log_error "PVE_ROOT_PASS not set in .env"
        exit 1
    fi
    
    # VM definitions: vmid name ip gateway user
    local vms=(
        "100 cloudflare-tunnel 192.168.1.60 192.168.1.254 ubuntu"
        "101 k3s-master 192.168.1.188 192.168.1.254 ubuntu"
        "102 git-server 192.168.1.121 192.168.1.254 ubuntu"
        "103 observability 192.168.1.82 192.168.1.254 ubuntu"
    )
    
    # Configure cloud-init
    for vm_spec in "${vms[@]}"; do
        read -r vmid name ip gateway user <<< "$vm_spec"
        configure_vm_cloudinit "$vmid" "$name" "$ip" "$gateway" "$user"
        sleep 1
    done
    
    log_info "Waiting 5 seconds before starting VMs..."
    sleep 5
    
    # Start VMs
    for vm_spec in "${vms[@]}"; do
        read -r vmid name ip gateway user <<< "$vm_spec"
        start_vm "$vmid" "$name"
        sleep 2
    done
    
    log_info "Cloud-init configuration and VM startup completed!"
    log_warn "VMs are starting. They will boot with cloud-init configuration."
    log_warn "Check VM status via Proxmox web UI or API."
}

main "$@"