from email.mime.multipart import MIMEMultipart
from email.mime.text import MIMEText

import datetime
import json
import smtplib
import socket
from base64 import b64encode
import subprocess
import requests
from json2table import convert

# pialert modules
import conf 
from const import pialertPath, logPath
from database import get_table_as_json
from files import write_file
from helper import generate_mac_links, isNewVersion, removeDuplicateNewLines, timeNow, hide_email, json_struc, updateState
from logger import logResult, mylog, print_log
from mqtt import mqtt_start




#===============================================================================
# REPORTING
#===============================================================================
# create a json for webhook and mqtt notifications to provide further integration options  


json_final = []

#-------------------------------------------------------------------------------
class noti_struc:
    def __init__(self, json, text, html):
        self.json = json
        self.text = text
        self.html = html


#-------------------------------------------------------------------------------
def construct_notifications(db, sqlQuery, tableTitle, skipText = False, suppliedJsonStruct = None):

    if suppliedJsonStruct is None and sqlQuery == "":
        return noti_struc("", "", "")

    table_attributes = {"style" : "border-collapse: collapse; font-size: 12px; color:#70707", "width" : "100%", "cellspacing" : 0, "cellpadding" : "3px", "bordercolor" : "#C0C0C0", "border":"1"}
    headerProps = "width='120px' style='color:blue; font-size: 16px;' bgcolor='#909090' "
    thProps = "width='120px' style='color:#F0F0F0' bgcolor='#909090' "

    build_direction = "TOP_TO_BOTTOM"
    text_line = '{}\t{}\n'

    if suppliedJsonStruct is None:
        json_struc = get_table_as_json(db, sqlQuery)
    else:
        json_struc = suppliedJsonStruct

    jsn  = json_struc.json
    html = ""    
    text = ""

    if len(jsn["data"]) > 0:
        text = tableTitle + "\n---------\n"

        html = convert(jsn, build_direction=build_direction, table_attributes=table_attributes)
        html = format_table(html, "data", headerProps, tableTitle).replace('<ul>','<ul style="list-style:none;padding-left:0">')

        headers = json_struc.columnNames

        # prepare text-only message
        if skipText == False:
            
            for device in jsn["data"]:
                for header in headers:
                    padding = ""
                    if len(header) < 4:
                        padding = "\t"
                    text += text_line.format ( header + ': ' + padding, device[header]) 
                text += '\n'

        #  Format HTML table headers
        for header in headers:
            html = format_table(html, header, thProps)

    return noti_struc(jsn, text, html)




def send_notifications (db):
    sql = db.sql  #TO-DO
    global mail_text, mail_html, json_final, changedPorts_json_struc, partial_html, partial_txt, partial_json

    deviceUrl              = conf.REPORT_DASHBOARD_URL + '/deviceDetails.php?mac='
    plugins_report         = False

    # Reporting section
    mylog('verbose', ['  Check if something to report'])    

    # prepare variables for JSON construction
    json_internet = []
    json_new_devices = []
    json_down_devices = []
    json_events = []
    json_ports = []
    json_plugins = []

    # Disable reporting on events for devices where reporting is disabled based on the MAC address
    sql.execute ("""UPDATE Events SET eve_PendingAlertEmail = 0
                    WHERE eve_PendingAlertEmail = 1 AND eve_EventType != 'Device Down' AND eve_MAC IN
                        (
                            SELECT dev_MAC FROM Devices WHERE dev_AlertEvents = 0 
						)""")
    sql.execute ("""UPDATE Events SET eve_PendingAlertEmail = 0
                    WHERE eve_PendingAlertEmail = 1 AND eve_EventType = 'Device Down' AND eve_MAC IN
                        (
                            SELECT dev_MAC FROM Devices WHERE dev_AlertDeviceDown = 0 
						)""")

    # Open text Template
    template_file = open(pialertPath + '/back/report_template.txt', 'r') 
    mail_text = template_file.read() 
    template_file.close() 

    # Open html Template
    template_file = open(pialertPath + '/back/report_template.html', 'r') 
    if conf.newVersionAvailable :
        template_file = open(pialertPath + '/back/report_template_new_version.html', 'r') 

    mail_html = template_file.read() 
    template_file.close() 

    # Report Header & footer
    timeFormated = timeNow().strftime ('%Y-%m-%d %H:%M')
    mail_text = mail_text.replace ('<REPORT_DATE>', timeFormated)
    mail_html = mail_html.replace ('<REPORT_DATE>', timeFormated)

    mail_text = mail_text.replace ('<SERVER_NAME>', socket.gethostname() )
    mail_html = mail_html.replace ('<SERVER_NAME>', socket.gethostname() )

    if 'internet' in conf.INCLUDED_SECTIONS:
        # Compose Internet Section
        sqlQuery = """SELECT eve_MAC as MAC,  eve_IP as IP, eve_DateTime as Datetime, eve_EventType as "Event Type", eve_AdditionalInfo as "More info" FROM Events
                        WHERE eve_PendingAlertEmail = 1 AND eve_MAC = 'Internet'
                        ORDER BY eve_DateTime"""

        notiStruc = construct_notifications(db, sqlQuery, "Internet IP change")

        # collect "internet" (IP changes) for the webhook json          
        json_internet = notiStruc.json["data"]

        mail_text = mail_text.replace ('<SECTION_INTERNET>', notiStruc.text + '\n')
        mail_html = mail_html.replace ('<INTERNET_TABLE>', notiStruc.html)

    if 'new_devices' in conf.INCLUDED_SECTIONS:
        # Compose New Devices Section 
        sqlQuery = """SELECT eve_MAC as MAC, eve_DateTime as Datetime, dev_LastIP as IP, eve_EventType as "Event Type", dev_Name as "Device name", dev_Comments as Comments  FROM Events_Devices
                        WHERE eve_PendingAlertEmail = 1
                        AND eve_EventType = 'New Device'
                        ORDER BY eve_DateTime"""

        notiStruc = construct_notifications(db, sqlQuery, "New devices")

        # collect "new_devices" for the webhook json         
        json_new_devices = notiStruc.json["data"]

        mail_text = mail_text.replace ('<SECTION_NEW_DEVICES>', notiStruc.text + '\n')
        mail_html = mail_html.replace ('<NEW_DEVICES_TABLE>', notiStruc.html)

    if 'down_devices' in conf.INCLUDED_SECTIONS:
        # Compose Devices Down Section   
        sqlQuery = """SELECT eve_MAC as MAC, eve_DateTime as Datetime, dev_LastIP as IP, eve_EventType as "Event Type", dev_Name as "Device name", dev_Comments as Comments  FROM Events_Devices
                        WHERE eve_PendingAlertEmail = 1
                        AND eve_EventType = 'Device Down'
                        ORDER BY eve_DateTime"""

        notiStruc = construct_notifications(db, sqlQuery, "Down devices")

        # collect "new_devices" for the webhook json         
        json_down_devices = notiStruc.json["data"]

        mail_text = mail_text.replace ('<SECTION_DEVICES_DOWN>', notiStruc.text + '\n')
        mail_html = mail_html.replace ('<DOWN_DEVICES_TABLE>', notiStruc.html)

    if 'events' in conf.INCLUDED_SECTIONS:
        # Compose Events Section   
        sqlQuery = """SELECT eve_MAC as MAC, eve_DateTime as Datetime, dev_LastIP as IP, eve_EventType as "Event Type", dev_Name as "Device name", dev_Comments as Comments  FROM Events_Devices
                        WHERE eve_PendingAlertEmail = 1
                        AND eve_EventType IN ('Connected','Disconnected',
                            'IP Changed')
                        ORDER BY eve_DateTime"""

        notiStruc = construct_notifications(db, sqlQuery, "Events")

        # collect "events" for the webhook json         
        json_events = notiStruc.json["data"]

        mail_text = mail_text.replace ('<SECTION_EVENTS>', notiStruc.text + '\n')
        mail_html = mail_html.replace ('<EVENTS_TABLE>', notiStruc.html)
    
    if 'ports' in conf.INCLUDED_SECTIONS:  
        # collect "ports" for the webhook json 
        if changedPorts_json_struc is not None:          
            json_ports =  changedPorts_json_struc.json["data"]       

        notiStruc = construct_notifications(db, "", "Ports", True, changedPorts_json_struc)

        mail_html = mail_html.replace ('<PORTS_TABLE>', notiStruc.html)

        portsTxt = ""
        if changedPorts_json_struc is not None:
            portsTxt = "Ports \n---------\n Ports changed! Check PiAlert for details!\n"        

        mail_text = mail_text.replace ('<PORTS_TABLE>', portsTxt )

    if 'plugins' in conf.INCLUDED_SECTIONS and conf.ENABLE_PLUGINS:  
        # Compose Plugins Section           
        sqlQuery = """SELECT Plugin, Object_PrimaryId, Object_SecondaryId, DateTimeChanged, Watched_Value1, Watched_Value2, Watched_Value3, Watched_Value4, Status from Plugins_Events"""

        notiStruc = construct_notifications(db, sqlQuery, "Plugins")

        # collect "plugins" for the webhook json 
        json_plugins = notiStruc.json["data"]

        mail_text = mail_text.replace ('<PLUGINS_TABLE>', notiStruc.text + '\n')
        mail_html = mail_html.replace ('<PLUGINS_TABLE>', notiStruc.html)

        # check if we need to report something
        plugins_report = len(json_plugins) > 0


    json_final = {
                    "internet": json_internet,                        
                    "new_devices": json_new_devices,
                    "down_devices": json_down_devices,                        
                    "events": json_events,
                    "ports": json_ports,
                    "plugins": json_plugins,
                    }    

    mail_text = removeDuplicateNewLines(mail_text)
    
    # Create clickable MAC links 
    mail_html = generate_mac_links (mail_html, deviceUrl)

    #  Write output emails for debug    
    write_file (logPath + '/report_output.json', json.dumps(json_final)) 
    write_file (logPath + '/report_output.txt', mail_text) 
    write_file (logPath + '/report_output.html', mail_html) 

    # Send Mail
    if json_internet != [] or json_new_devices != [] or json_down_devices != [] or json_events != [] or json_ports != [] or conf.debug_force_notification or plugins_report:        

        # update_api(True) # TO-DO

        mylog('none', ['    Changes detected, sending reports'])

        if conf.REPORT_MAIL and check_config('email'):  
            updateState(db,"Send: Email")
            mylog('info', ['      Sending report by Email'])
            send_email (mail_text, mail_html)
        else :
            mylog('verbose', ['      Skip email'])
        if conf.REPORT_APPRISE and check_config('apprise'):
            updateState(db,"Send: Apprise")
            mylog('info', ['      Sending report by Apprise'])
            send_apprise (mail_html, mail_text)
        else :
            mylog('verbose', ['      Skip Apprise'])
        if conf.REPORT_WEBHOOK and check_config('webhook'):
            updateState(db,"Send: Webhook")
            mylog('info', ['      Sending report by Webhook'])
            send_webhook (json_final, mail_text)
        else :
            mylog('verbose', ['      Skip webhook'])
        if conf.REPORT_NTFY and check_config('ntfy'):
            updateState(db,"Send: NTFY")
            mylog('info', ['      Sending report by NTFY'])
            send_ntfy (mail_text)
        else :
            mylog('verbose', ['      Skip NTFY'])
        if conf.REPORT_PUSHSAFER and check_config('pushsafer'):
            updateState(db,"Send: PUSHSAFER")
            mylog('info', ['      Sending report by PUSHSAFER'])
            send_pushsafer (mail_text)
        else :
            mylog('verbose', ['      Skip PUSHSAFER'])
        # Update MQTT entities
        if conf.REPORT_MQTT and check_config('mqtt'):
            updateState(db,"Send: MQTT")
            mylog('info', ['      Establishing MQTT thread'])                          
            mqtt_start()        
        else :
            mylog('verbose', ['      Skip MQTT'])
    else :
        mylog('verbose', ['    No changes to report'])

    # Clean Pending Alert Events
    sql.execute ("""UPDATE Devices SET dev_LastNotification = ?
                    WHERE dev_MAC IN (SELECT eve_MAC FROM Events
                                      WHERE eve_PendingAlertEmail = 1)
                 """, (datetime.datetime.now(),) )
    sql.execute ("""UPDATE Events SET eve_PendingAlertEmail = 0
                    WHERE eve_PendingAlertEmail = 1""")

    # clear plugin events
    sql.execute ("DELETE FROM Plugins_Events")
    
    changedPorts_json_struc = None

    # DEBUG - print number of rows updated    
    mylog('info', ['[', timeNow(), '] Notifications: ', sql.rowcount])

    # Commit changes    
    db.commitDB()


#-------------------------------------------------------------------------------
def check_config(service):

    if service == 'email':
        if conf.SMTP_SERVER == '' or conf.REPORT_FROM == '' or conf.REPORT_TO == '':
            mylog('none', ['    Error: Email service not set up correctly. Check your pialert.conf SMTP_*, REPORT_FROM and REPORT_TO variables.'])
            return False
        else:
            return True   

    if service == 'apprise':
        if conf.APPRISE_URL == '' or conf.APPRISE_HOST == '':
            mylog('none', ['    Error: Apprise service not set up correctly. Check your pialert.conf APPRISE_* variables.'])
            return False
        else:
            return True  

    if service == 'webhook':
        if conf.WEBHOOK_URL == '':
            mylog('none', ['    Error: Webhook service not set up correctly. Check your pialert.conf WEBHOOK_* variables.'])
            return False
        else:
            return True 

    if service == 'ntfy':
        if conf.NTFY_HOST == '' or conf.NTFY_TOPIC == '':
            mylog('none', ['    Error: NTFY service not set up correctly. Check your pialert.conf NTFY_* variables.'])
            return False
        else:
            return True 

    if service == 'pushsafer':
        if conf.PUSHSAFER_TOKEN == 'ApiKey':
            mylog('none', ['    Error: Pushsafer service not set up correctly. Check your pialert.conf PUSHSAFER_TOKEN variable.'])
            return False
        else:
            return True 

    if service == 'mqtt':
        if conf.MQTT_BROKER == '' or conf.MQTT_PORT == '' or conf.MQTT_USER == '' or conf.MQTT_PASSWORD == '':
            mylog('none', ['    Error: MQTT service not set up correctly. Check your pialert.conf MQTT_* variables.'])
            return False
        else:
            return True 

#-------------------------------------------------------------------------------
def format_table (html, thValue, props, newThValue = ''):

    if newThValue == '':
        newThValue = thValue
        
    return html.replace("<th>"+thValue+"</th>", "<th "+props+" >"+newThValue+"</th>" )

#-------------------------------------------------------------------------------
def format_report_section (pActive, pSection, pTable, pText, pHTML):


    # Replace section text
    if pActive :
        conf.mail_text = conf.mail_text.replace ('<'+ pTable +'>', pText)
        conf.mail_html = conf.mail_html.replace ('<'+ pTable +'>', pHTML)       

        conf.mail_text = remove_tag (conf.mail_text, pSection)       
        conf.mail_html = remove_tag (conf.mail_html, pSection)
    else:
        conf.mail_text = remove_section (conf.mail_text, pSection)
        conf.mail_html = remove_section (conf.mail_html, pSection)

#-------------------------------------------------------------------------------
def remove_section (pText, pSection):
    # Search section into the text
    if pText.find ('<'+ pSection +'>') >=0 \
    and pText.find ('</'+ pSection +'>') >=0 : 
        # return text without the section
        return pText[:pText.find ('<'+ pSection+'>')] + \
               pText[pText.find ('</'+ pSection +'>') + len (pSection) +3:]
    else :
        # return all text
        return pText

#-------------------------------------------------------------------------------
def remove_tag (pText, pTag):
    # return text without the tag
    return pText.replace ('<'+ pTag +'>','').replace ('</'+ pTag +'>','')


#-------------------------------------------------------------------------------
# Reporting 
#-------------------------------------------------------------------------------
def send_email (pText, pHTML):

    # Print more info for debugging if LOG_LEVEL == 'debug' 
    if conf.LOG_LEVEL == 'debug':
        print_log ('REPORT_TO: ' + hide_email(str(conf.REPORT_TO)) + '  SMTP_USER: ' + hide_email(str(conf.SMTP_USER))) 

    # Compose email
    msg = MIMEMultipart('alternative')
    msg['Subject'] = 'Pi.Alert Report'
    msg['From'] = conf.REPORT_FROM
    msg['To'] = conf.REPORT_TO
    msg.attach (MIMEText (pText, 'plain'))
    msg.attach (MIMEText (pHTML, 'html'))

    failedAt = ''

    failedAt = print_log ('SMTP try')

    try:
        # Send mail
        failedAt = print_log('Trying to open connection to ' + str(conf.SMTP_SERVER) + ':' + str(conf.SMTP_PORT))

        if conf.SMTP_FORCE_SSL:
            failedAt = print_log('SMTP_FORCE_SSL == True so using .SMTP_SSL()')
            if conf.SMTP_PORT == 0:            
                failedAt = print_log('SMTP_PORT == 0 so sending .SMTP_SSL(SMTP_SERVER)')
                smtp_connection = smtplib.SMTP_SSL(conf.SMTP_SERVER)
            else:
                failedAt = print_log('SMTP_PORT == 0 so sending .SMTP_SSL(SMTP_SERVER, SMTP_PORT)')
                smtp_connection = smtplib.SMTP_SSL(conf.SMTP_SERVER, conf.SMTP_PORT)
            
        else:
            failedAt = print_log('SMTP_FORCE_SSL == False so using .SMTP()')
            if conf.SMTP_PORT == 0:
                failedAt = print_log('SMTP_PORT == 0 so sending .SMTP(SMTP_SERVER)')
                smtp_connection = smtplib.SMTP (conf.SMTP_SERVER)
            else:
                failedAt = print_log('SMTP_PORT == 0 so sending .SMTP(SMTP_SERVER, SMTP_PORT)')
                smtp_connection = smtplib.SMTP (conf.SMTP_SERVER, conf.SMTP_PORT)

        failedAt = print_log('Setting SMTP debug level')

        # Log level set to debug of the communication between SMTP server and client
        if conf.LOG_LEVEL == 'debug':
            smtp_connection.set_debuglevel(1) 
        
        failedAt = print_log( 'Sending .ehlo()')
        smtp_connection.ehlo()

        if not conf.SMTP_SKIP_TLS:       
            failedAt = print_log('SMTP_SKIP_TLS == False so sending .starttls()')
            smtp_connection.starttls()
            failedAt = print_log('SMTP_SKIP_TLS == False so sending .ehlo()')
            smtp_connection.ehlo()
        if not conf.SMTP_SKIP_LOGIN:
            failedAt = print_log('SMTP_SKIP_LOGIN == False so sending .login()')
            smtp_connection.login (conf.SMTP_USER, conf.SMTP_PASS)
            
        failedAt = print_log('Sending .sendmail()')
        smtp_connection.sendmail (conf.REPORT_FROM, conf.REPORT_TO, msg.as_string())
        smtp_connection.quit()
    except smtplib.SMTPAuthenticationError as e: 
        mylog('none', ['      ERROR: Failed at - ', failedAt])
        mylog('none', ['      ERROR: Couldn\'t connect to the SMTP server (SMTPAuthenticationError), skipping Email (enable LOG_LEVEL=debug for more logging)'])
    except smtplib.SMTPServerDisconnected as e: 
        mylog('none', ['      ERROR: Failed at - ', failedAt])
        mylog('none', ['      ERROR: Couldn\'t connect to the SMTP server (SMTPServerDisconnected), skipping Email (enable LOG_LEVEL=debug for more logging)'])

    print_log('      DEBUG: Last executed - ' + str(failedAt))

#-------------------------------------------------------------------------------
def send_ntfy (_Text):
    headers = {
        "Title": "Pi.Alert Notification",
        "Actions": "view, Open Dashboard, "+ conf.REPORT_DASHBOARD_URL,
        "Priority": "urgent",
        "Tags": "warning"
    }
    # if username and password are set generate hash and update header
    if conf.NTFY_USER != "" and conf.NTFY_PASSWORD != "":
	# Generate hash for basic auth
        usernamepassword = "{}:{}".format(conf.NTFY_USER,conf.NTFY_PASSWORD)
        basichash = b64encode(bytes(conf.NTFY_USER + ':' + conf.NTFY_PASSWORD, "utf-8")).decode("ascii")

	# add authorization header with hash
        headers["Authorization"] = "Basic {}".format(basichash)

    requests.post("{}/{}".format( conf.NTFY_HOST, conf.NTFY_TOPIC),
    data=_Text,
    headers=headers)

def send_pushsafer (_Text):
    url = 'https://www.pushsafer.com/api'
    post_fields = {
        "t" : 'Pi.Alert Message',
        "m" : _Text,
        "s" : 11,
        "v" : 3,
        "i" : 148,
        "c" : '#ef7f7f',
        "d" : 'a',
        "u" : conf.REPORT_DASHBOARD_URL,
        "ut" : 'Open Pi.Alert',
        "k" : conf.PUSHSAFER_TOKEN,
        }
    requests.post(url, data=post_fields)

#-------------------------------------------------------------------------------
def send_webhook (_json, _html):

    # use data type based on specified payload type
    if conf.WEBHOOK_PAYLOAD == 'json':
        payloadData = _json        
    if conf.WEBHOOK_PAYLOAD == 'html':
        payloadData = _html
    if conf.WEBHOOK_PAYLOAD == 'text':
        payloadData = to_text(_json)

    # Define slack-compatible payload
    _json_payload = { "text": payloadData } if conf.WEBHOOK_PAYLOAD == 'text' else {
    "username": "Pi.Alert",
    "text": "There are new notifications",
    "attachments": [{
      "title": "Pi.Alert Notifications",
      "title_link": conf.REPORT_DASHBOARD_URL,
      "text": payloadData
    }]
    } 

    # DEBUG - Write the json payload into a log file for debugging
    write_file (logPath + '/webhook_payload.json', json.dumps(_json_payload))    

    # Using the Slack-Compatible Webhook endpoint for Discord so that the same payload can be used for both
    if(conf.WEBHOOK_URL.startswith('https://discord.com/api/webhooks/') and not conf.WEBHOOK_URL.endswith("/slack")):
        _WEBHOOK_URL = f"{conf.WEBHOOK_URL}/slack"
        curlParams = ["curl","-i","-H", "Content-Type:application/json" ,"-d", json.dumps(_json_payload), _WEBHOOK_URL]
    else:
        _WEBHOOK_URL = conf.WEBHOOK_URL
        curlParams = ["curl","-i","-X", conf.WEBHOOK_REQUEST_METHOD ,"-H", "Content-Type:application/json" ,"-d", json.dumps(_json_payload), _WEBHOOK_URL]

    # execute CURL call
    try:
        # try runnning a subprocess
        mylog('debug', curlParams) 
        p = subprocess.Popen(curlParams, stdout=subprocess.PIPE, stderr=subprocess.STDOUT)

        stdout, stderr = p.communicate()

        # write stdout and stderr into .log files for debugging if needed
        logResult (stdout, stderr)     # TO-DO should be changed to mylog
    except subprocess.CalledProcessError as e:
        # An error occured, handle it
        mylog('none', [e.output])

#-------------------------------------------------------------------------------
def send_apprise (html, text):
    #Define Apprise compatible payload (https://github.com/caronc/apprise-api#stateless-solution)
    payload = html

    if conf.APPRISE_PAYLOAD == 'text':
        payload = text

    _json_payload={
    "urls": conf.APPRISE_URL,
    "title": "Pi.Alert Notifications",    
    "format": conf.APPRISE_PAYLOAD,
    "body": payload    
    }

    try:
        # try runnning a subprocess        
        p = subprocess.Popen(["curl","-i","-X", "POST" ,"-H", "Content-Type:application/json" ,"-d", json.dumps(_json_payload), conf.APPRISE_HOST], stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
        stdout, stderr = p.communicate()
        # write stdout and stderr into .log files for debugging if needed
        logResult (stdout, stderr)      # TO-DO should be changed to mylog
    except subprocess.CalledProcessError as e:
        # An error occured, handle it
        mylog('none', [e.output])    


def to_text(_json):
    payloadData = ""
    if len(_json['internet']) > 0 and 'internet' in conf.INCLUDED_SECTIONS:
        payloadData += "INTERNET\n"
        for event in _json['internet']:
            payloadData += event[3] + ' on ' + event[2] + '. ' + event[4] + '. New address:' + event[1] + '\n'

    if len(_json['new_devices']) > 0 and 'new_devices' in conf.INCLUDED_SECTIONS:
        payloadData += "NEW DEVICES:\n"
        for event in _json['new_devices']:
            if event[4] is None:
                event[4] = event[11]
            payloadData += event[1] + ' - ' + event[4] + '\n'

    if len(_json['down_devices']) > 0 and 'down_devices' in conf.INCLUDED_SECTIONS:
        write_file (logPath + '/down_devices_example.log', _json['down_devices'])
        payloadData += 'DOWN DEVICES:\n'
        for event in _json['down_devices']:
            if event[4] is None:
                event[4] = event[11]
            payloadData += event[1] + ' - ' + event[4] + '\n'
    
    if len(_json['events']) > 0 and 'events' in conf.INCLUDED_SECTIONS:
        payloadData += "EVENTS:\n"
        for event in _json['events']:
            if event[8] != "Internet":
                payloadData += event[8] + " on " + event[1] + " " + event[3] + " at " + event[2] + "\n"

    return payloadData



#-------------------------------------------------------------------------------
def skip_repeated_notifications (db):    

    # Skip repeated notifications
    # due strfime : Overflow --> use  "strftime / 60"
    print_log ('Skip Repeated')
    db.sql.execute ("""UPDATE Events SET eve_PendingAlertEmail = 0
                    WHERE eve_PendingAlertEmail = 1 AND eve_MAC IN
                        (
                        SELECT dev_MAC FROM Devices
                        WHERE dev_LastNotification IS NOT NULL
                          AND dev_LastNotification <>""
                          AND (strftime("%s", dev_LastNotification)/60 +
                                dev_SkipRepeated * 60) >
                              (strftime('%s','now','localtime')/60 )
                        )
                 """ )
    print_log ('Skip Repeated end')

    db.commitDB()