from flask import render_template, abort, redirect, url_for, abort, flash, request, current_app, make_response, g
from flask_login import login_required, login_user, logout_user, current_user
from flask_sqlalchemy import get_debug_queries

from . import main
from .. import db
from ..email import send_email
from ..models import User, Permission, Deployment, Service, Region, Address, Domain, contact_proxmaster

import base64

@main.after_app_request
def after_request(response):
    for query in get_debug_queries():
        if query.duration >= current_app.config['SLOW_DB_QUERY_TIME']:
            current_app.logger.warning('Slow query: %s\nParameters: %s\nDuration: %fs\nContext: %s\n' % (query.statement, query.parameters, query.duration, query.context))
    return response

#STATIC PAGES
@main.route("/", methods=['GET'])
def index():
    return render_template('main/index.html')

@main.route("/chat", methods=['GET'])
def chat():
    return render_template('main/livechat.html')

#@main.route("/aboutus", methods=['GET'])
#def about():
#    return render_template('main/aboutus.html')

@main.route("/terms", methods=['GET'])
def terms():
    return render_template('main/terms.html')

#DASHBOARD
@main.route("/dashboard", methods=['GET', 'POST'])
@login_required
def dashboard():
    cuser = current_user

    inv_deployments = cuser.inv_deployments.filter_by(cancelled=False).order_by(Deployment.date_created.desc()).all()
    inv_deploycubeids = []
    inv_deployments_list = []
    for invcls in inv_deployments: 
        if invcls.user_id == cuser.pid and invcls.enabled == True: 
            inv_deploycubeids.extend([invcls.machine_id]) 
            inv_deployments_list.extend([invcls.machine_alias]) 
 
    inv_services = cuser.inv_services.filter_by(cancelled=False).order_by(Service.date_last_charge.asc()).all()
    inv_services_list = [] 
    for invcls in inv_services: 
        if invcls.user_id == cuser.pid and invcls.enabled == True: 
            inv_services_list.extend([invcls.description]) 
                                                                                      
    inv_domains = cuser.inv_domains.filter_by(cancelled=False).order_by(Domain.date_created.desc()).all()
    inv_domains_list = []
    for invcls in inv_domains:
        if invcls.user_id == cuser.pid and invcls.enabled == True: 
            inv_domains_list.extend([invcls.fqdn])

    inv_addresses = cuser.inv_addresses.order_by(Address.ip.asc()).all()
    inv_addresses_list = []
    for invcls in inv_addresses:
        if invcls.user_id == cuser.pid and invcls.enabled == True:
            inv_addresses_list.extend([invcls.ip])

    sys_regions = Region.query.all()
    regions = {}
    for region in sys_regions:
        regions[region.pid] = region.description

    #extract rrd and status from the deployments
    rrd = {}
    statuses = {}
    for cubeid in inv_deploycubeids:
        rrd[cubeid] = {}
        try:
            query = contact_proxmaster({}, 'vmrrd', cubeid)
        except Exception as e:
            current_app.logger.error(e)
            flash('Deploy #{} unreachable. Support is notified'.format(str(cubeid)))
            send_email(current_app.config['MAIL_USERNAME'], 'Cube {} is unreachable'.format(cubeid), 
                       'vmanager/email/adm_unreachable', user=current_user, cubeid=cubeid)

        graphs_list = ['net', 'cpu', 'mem', 'hdd']
        try: 
            for graph in graphs_list:
                raw = query[graph]['image'].encode('raw_unicode_escape')
                rrd[cubeid][graph] = base64.b64encode(raw).decode()
            status = { cubeid : query['status'] }
            statuses.update(status)
        except Exception as e:
            current_app.logger.error(e)
            flash('Deploy #{} unreachable. Support is notified'.format(str(cubeid)))
            send_email(current_app.config['MAIL_USERNAME'], 'Cube {} is unreachable'.format(cubeid), 
                                          'vmanager/email/adm_unreachable', user=current_user, cubeid=cubeid )

    #current_app.logger.info('[{}] Enabled deployments: {}, services: {}, domains: {}, addresses: {}'.format(current_user.email, inv_deployments_list, inv_services_list, inv_domains_list, inv_addresses_list ))
    return render_template('main/dashboard.html', rrd=rrd, status=statuses, inv_deployments=inv_deployments, inv_services=inv_services, inv_domains=inv_domains, inv_addresses=inv_addresses, region=regions)