# modules/sites.py — Managed application sites registry + live status
#
# REWRITTEN 2026-08-21: this used to be a fully Docker-era hardcoded registry
# (container names like odoo-clean-odoo-1/frappe-erpnext/nextcloud-app that
# no longer exist since the k8s migration, checked via `docker inspect` over
# SSH) with hardcoded domain/port fields — nextcloud and mautic even had
# `domain: None`, silently falling back to dead Docker host-port URLs while
# their real k8s Ingress domains (next.cloud.nav.ovh, mautics.nav.ovh) sat
# unused. Now sources everything live from the cluster: Deployment/pod
# status via modules/kubernetes.py's in-cluster client, and domain/TLS via
# the actual Ingress objects (not a static guess) — see
# management-platform-sites-rbac.yaml for the narrow ingress-read grant this
# needed in the `default` namespace (odoo/nextcloud's Ingress historically
# live there, not in their app namespace).
import time
import urllib.request

from modules.kubernetes import get_ingress_info, list_deployments_for_namespace


# ────────────────────────────────────────────────────────────────
# STATIC SITE REGISTRY — identity/namespace/naming only. Live state
# (domain, TLS, deployment/pod health) is always fetched fresh below,
# never hardcoded.
# ────────────────────────────────────────────────────────────────

PLATFORM = {
    'id': 'cloudops',
    'name': 'CloudOps Platform',
    'tagline': 'Navitrends ops dashboard',
    'domain': 'cloudops.nav.ovh',
    'domain_protocol': 'https',
    'ssl_configured': True,
    'port': 8088,
    'internal_port': 5000,
    'container': 'management-platform',
    'health_path': '/',
    'brand_color': '#3b82f6',
    'icon': 'fa-gauge-high',
}

SITES = [
    {
        'id': 'erpnext',
        'name': 'ERPNext',
        'tagline': 'Enterprise resource planning',
        'category': 'ERP',
        'icon': 'erpnext',
        'brand_color': '#0089FF',
        'namespace': 'erpnext',
        'main_deployment': 'erpnext-web',
        'service_port': 8000,
        'ingress_name': 'erpnext-ingress',
        'ingress_namespace': 'erpnext',
        'health_path': '/',
        'pvcs': ['erpnext-sites', 'erpnext-mariadb-data'],
        'roles': {
            'erpnext-web': 'App',
            'erpnext-worker': 'Worker',
            'erpnext-scheduler': 'Scheduler',
            'erpnext-mariadb': 'Database',
            'erpnext-redis-cache': 'Cache',
            'erpnext-redis-queue': 'Queue',
        },
    },
    {
        'id': 'odoo',
        'name': 'Odoo',
        'tagline': 'Business management suite',
        'category': 'ERP',
        'icon': 'odoo',
        'brand_color': '#714B67',
        'namespace': 'odoo',
        'main_deployment': 'odoo',
        'service_port': 8069,
        # Historical: created in `default` during migration, not the `odoo` ns.
        'ingress_name': 'odoo-ingress',
        'ingress_namespace': 'default',
        'health_path': '/web',
        'pvcs': ['odoo-data', 'odoo-postgres-data'],
        'roles': {
            'odoo': 'App',
            'odoo-postgres': 'Database',
        },
    },
    {
        'id': 'nextcloud',
        'name': 'Nextcloud',
        'tagline': 'File sync & collaboration',
        'category': 'Storage',
        'icon': 'nextcloud',
        'brand_color': '#0082C9',
        'namespace': 'nextcloud',
        'main_deployment': 'nextcloud',
        'service_port': 80,
        # Historical: created in `default` during migration, not the `nextcloud` ns.
        'ingress_name': 'nextcloud-ingress',
        'ingress_namespace': 'default',
        'health_path': '/status.php',
        'pvcs': ['nextcloud-app-data', 'nextcloud-postgres-data'],
        'roles': {
            'nextcloud': 'App',
            'nextcloud-postgres': 'Database',
        },
    },
    {
        'id': 'mautic',
        'name': 'Mautic',
        'tagline': 'Marketing automation',
        'category': 'Marketing',
        'icon': 'mautic',
        'brand_color': '#4E5E9E',
        'namespace': 'mautic',
        'main_deployment': 'mautic',
        'service_port': 80,
        'ingress_name': 'mautic-ingress',
        'ingress_namespace': 'mautic',
        'health_path': '/',
        'pvcs': ['mautic-app-data', 'mautic-db-data'],
        'roles': {
            'mautic': 'App',
            'mautic-mariadb': 'Database',
        },
    },
    {
        'id': 'n8n',
        'name': 'n8n',
        'tagline': 'Workflow automation',
        'category': 'Automation',
        'icon': 'n8n',
        'brand_color': '#EA4B71',
        'namespace': 'n8n',
        'main_deployment': 'n8n',
        'service_port': 5678,
        'ingress_name': 'n8n-ingress',
        'ingress_namespace': 'n8n',
        'health_path': '/healthz',
        'pvcs': ['n8n-data', 'n8n-postgres-data'],
        'roles': {
            'n8n': 'App',
            'n8n-postgres': 'Database',
        },
    },
]

SITE_BY_ID = {s['id']: s for s in SITES}


def _build_urls(site, ingress_info):
    """Domain/TLS come from the live Ingress object — never hardcoded.
    ingress_info is None if the Ingress couldn't be read (RBAC/API issue)
    or {'host': str|None, 'tls': bool} otherwise."""
    path = site.get('health_path', '/') or '/'
    host = ingress_info.get('host') if ingress_info else None
    has_domain = bool(host)
    ssl_configured = bool(ingress_info and ingress_info.get('tls'))

    if has_domain:
        proto = 'https' if ssl_configured else 'http'
        access_url = f"{proto}://{host}"
        health_url = f"{access_url}{path}"
    else:
        access_url = None
        health_url = None

    return {
        'has_domain': has_domain,
        'domain': host,
        'domain_protocol': 'https' if ssl_configured else 'http',
        'ssl_configured': ssl_configured,
        'access_url': (access_url or '').rstrip('/'),
        'health_url': health_url,
    }


def _probe_http(url, timeout=5):
    """Direct HTTP probe. The management-platform pod has normal internet
    egress and resolves public DNS just like any other pod — no need to
    hop back out to the host via SSH the way the old Docker-era code did."""
    try:
        req = urllib.request.Request(url, method='GET', headers={'User-Agent': 'CloudOps-HealthCheck/1.0'})
        t0 = time.time()
        with urllib.request.urlopen(req, timeout=timeout) as resp:
            code = resp.getcode()
            latency_ms = int((time.time() - t0) * 1000)
            return {
                'reachable': 200 <= code < 400,
                'http_code': code,
                'latency_ms': latency_ms,
                'error': None,
            }
    except Exception as e:
        return {'reachable': False, 'http_code': None, 'latency_ms': None, 'error': str(e)[:120]}


def _deployments_for_site(site):
    """Live Deployment status for every stack member (app/db/cache/etc),
    keyed by k8s Deployment name."""
    live = {d['name']: d for d in list_deployments_for_namespace(site['namespace'])}
    roles = site.get('roles', {})
    containers = []
    running_count = 0
    for dep_name, role in roles.items():
        d = live.get(dep_name)
        if d:
            is_up = d['ready'] >= 1 and d['desired'] >= 1
            if is_up:
                running_count += 1
            containers.append({
                'name': dep_name,
                'role': role,
                'status': 'running' if is_up else 'stopped',
                'image_live': d['image'],
                'ports': f"{d['ready']}/{d['desired']} ready",
            })
        else:
            containers.append({
                'name': dep_name,
                'role': role,
                'status': 'not_found',
                'image_live': '—',
                'ports': '—',
            })
    main = live.get(site['main_deployment'])
    main_running = bool(main and main['ready'] >= 1 and main['desired'] >= 1)
    return containers, running_count, main_running


def _site_entry(site, include_health):
    ingress_info = get_ingress_info(site['ingress_name'], site['ingress_namespace'])
    urls = _build_urls(site, ingress_info)
    containers, running_count, main_running = _deployments_for_site(site)

    entry = {
        'id': site['id'],
        'name': site['name'],
        'tagline': site['tagline'],
        'category': site['category'],
        'icon': site['icon'],
        'brand_color': site['brand_color'],
        'compose_dir': site['namespace'],  # k8s namespace, shown as "COMPOSE PROJECT" in the UI
        'main_container': site['main_deployment'],
        'port': site['service_port'],
        'internal_port': site['service_port'],
        'port_mapping': f"svc/{site['service_port']}",
        'ports_raw': f"ClusterIP:{site['service_port']}",
        'volumes': site.get('pvcs', []),
        'ip_url': f"{site['main_deployment']}.{site['namespace']}.svc.cluster.local:{site['service_port']} (cluster-internal only)",
        'container_status': 'running' if main_running else 'stopped',
        'container_running': main_running,
        'containers': containers,
        'containers_running': running_count,
        'containers_total': len(site.get('roles', {})),
        **urls,
    }

    if include_health:
        if not urls['has_domain']:
            entry['health'] = {
                'status': 'down', 'reachable': False, 'http_code': None,
                'latency_ms': None, 'error': 'No Ingress host found for this app',
            }
        elif not main_running:
            entry['health'] = {
                'status': 'offline', 'reachable': False, 'http_code': None,
                'latency_ms': None, 'error': 'Deployment not running',
            }
        else:
            probe = _probe_http(urls['health_url'])
            entry['health'] = {'status': 'up' if probe['reachable'] else 'down', **probe}

    return entry


def get_sites_list(include_health=False):
    """Return all sites with live k8s Deployment + Ingress state."""
    return [_site_entry(site, include_health) for site in SITES]


def get_site_health(site_id):
    site = SITE_BY_ID.get(site_id)
    if not site:
        return None
    ingress_info = get_ingress_info(site['ingress_name'], site['ingress_namespace'])
    urls = _build_urls(site, ingress_info)
    _, _, main_running = _deployments_for_site(site)

    if not main_running:
        return {
            'site_id': site_id, 'status': 'offline', 'reachable': False,
            'http_code': None, 'latency_ms': None, 'error': 'Deployment not running',
            'checked_at': time.time(),
        }
    if not urls['has_domain']:
        return {
            'site_id': site_id, 'status': 'down', 'reachable': False,
            'http_code': None, 'latency_ms': None, 'error': 'No Ingress host found',
            'checked_at': time.time(),
        }

    probe = _probe_http(urls['health_url'])
    probe['site_id'] = site_id
    probe['status'] = 'up' if probe['reachable'] else 'down'
    probe['checked_at'] = time.time()
    return probe