#
# Mailstats.py
#
#
# This script provides daily SpamFilter statistics.
#
# Mailstats
#
#		usage: mailstats.py [-h] [-d DATE] [-ef EMAILFILE] [-tf TEXTFILE] [--version]
#							[-db DBSAVE]
#
#		Mailstats
#
#		optional arguments:
#		  -h, --help            show this help message and exit
#		  -d DATE, --date DATE  Specify a valid date (yyyy-mm-dd) for the analysis
#		  -ef EMAILFILE, --emailfile EMAILFILE
#								Save an html file of the email sent (y/N)
#		  -tf TEXTFILE, --textfile TEXTFILE
#								Save a txt file of the html page (y/N)
#		  --version             show program's version number and exit
#		  -db DBSAVE, --dbsave DBSAVE
#								Force save of summary logs in DB (y/N)
#
#
# (June 2024 - bjr) Re-written in Python from Mailstats.pl (Perl) to conform to SME11 / Postfix / qpsmtpd log formats
# and html output added
#
# Todo:
# 2  Other stats
# 3. Extra bits for sub tables - DONE
# 4. Percent char causes sort to fail - look at adding it in the template - DONE
# 5. Chase disparity in counts betweeen old mailstats and this - Some of it DONE
# 6. Count emails delivered over ports 25/587/465 (SMTPS?)
# 7. Arrange that the spec file overwrites the date even if it has been overwritten before
# 8. Allow mailstats pages to be public or private  (=> templating the fragment)) - DONE
# 9. Update format of the summarylogs page - DONE but still WIP
# 10. Add in links to summarylogs in web pages - DONE but still WIP
# 11. Move showSummaryLogs.php to individual directory "/opt/mailstats/php"
# 12. Make sure other directories not visible through apache 
# 
# Future:
# 1. Write summary line for each transaction to DB and link to it through cell in main table -DONE (write to DB))
# 2. Make DB password something more obscure.
# 3. Prune the DB according to parameter - delete corresponding page in opt/mailstats/html
# 4. Prune the html directory according to parameter
# 
# Even more Future (if ever))
# 2. Link each summary line through DB to actual transaction lines
#
# Centos7:
# yum install python3-chameleon --enablerepo=epel
# yum install html2text --enablerepo=epel
# yum install mysql-connector-python --enablerepo=epel (not sure if this is required as well the pip3))
# pip3 install mysql-connector
# pip3 install numpy
# pip3 install plotly
# pip3 install pandas
#
# Rocky8: (probably - not yet checked this)
#
# dnf install python3-chameleon --enablerepo=epel
# dnf install html2text --enablerepo=epel
# pip3 install numpy
# pip3 pymysql
# pip3 install plotly
# pip3 install pandas
#
#
from datetime import datetime, timedelta
import sys
from chameleon import PageTemplateFile,PageTemplate
import pkg_resources
import re
import ipaddress
import subprocess
import os
from collections import defaultdict
import smtplib
from email.mime.multipart import MIMEMultipart
from email.mime.text import MIMEText
import codecs
import argparse
import tempfile
#import mysql.connector
import numpy as np
import plotly.graph_objects as go
import plotly.express as px
import colorsys
import pymysql
import json

Mailstats_version = '1.2'
build_date_time = "2024-06-18 12:03:40OURCE" 
build_date_time = build_date_time[:19]  #Take out crap that sneaks in.

#if build_date_time == "2024-06-18 12:03:40OURCE":
#    build_date_time = "Unknown"

script_dir = os.path.dirname(os.path.abspath(__file__))
data_file_path = script_dir+'/../..'    #back to the top
now = datetime.now()
yesterday = now - timedelta(days=1)
formatted_yesterday = yesterday.strftime("%Y-%m-%d")
#html_page_path = data_file_path+"/home/e-smith/files/ibays/mesdb/html/mailstats/"
html_page_dir = data_file_path+"/opt/mailstats/html/"
template_dir = data_file_path+"/opt/mailstats/templates/"
logs_dir = data_file_path+"/opt/mailstats/logs/"

# Column numbering (easy to renumber or add one in)
Hour = 0
WebMail = Hour + 1
Local = WebMail + 1
MailMan = Local + 1
Relay = MailMan + 1
DMARC = Relay + 1
Virus = DMARC + 1
RBLDNS = Virus + 1
Geoip = RBLDNS + 1
NonConf = Geoip + 1
RejLoad = NonConf + 1
Karma = RejLoad + 1
DelSpam = Karma + 1
QuedSpam = DelSpam + 1
Ham = QuedSpam + 1
TOTALS = Ham + 1
PERCENT = TOTALS + 1

ColTotals = 24
ColPercent = 25


def sanitize_and_filter_data_for_stacked_bar(data2d, xLabels, yLabels, exclude_columns_labels, exclude_rows_labels):
    """
    Sanitize data by removing unwanted columns and rows, and converting to numeric values.
    
    Parameters:
    - data2d (list of lists): A 2D list containing the data.
    - xLabels (list): Current labels for the x-axis.
    - yLabels (list): Current labels for the y-axis.
    - exclude_columns_labels (list): Labels of columns to exclude from the data and x-axis.
    - exclude_rows_labels (list): Labels of rows to exclude from the y-axis.
    
    Returns:
    - numpy.ndarray: Sanitized 2D numpy array with numeric data.
    - list: Filtered x-axis labels.
    - list: Filtered y-axis labels.
    """
    def to_numeric(value):
        try:
            if isinstance(value, str):
                # Remove any extra characters like '%' and convert to float
                return float(value.replace('%', '').strip())
            else:
                return float(value)
        except ValueError:
            return 0.0  # Default to 0 if conversion fails

    # Filter out columns based on their labels
    exclude_columns_indices = [xLabels.index(label) for label in exclude_columns_labels if label in xLabels]
    
    filtered_data2d = [
        [to_numeric(value) for idx, value in enumerate(row) if idx not in exclude_columns_indices]
        for row in data2d
    ]
    
    filtered_xLabels = [label for idx, label in enumerate(xLabels) if idx not in exclude_columns_indices]
    
    # Filter out rows based on their labels
    filtered_data2d = [row for label, row in zip(yLabels, filtered_data2d) if label not in exclude_rows_labels]
    filtered_yLabels = [label for label in yLabels if label not in exclude_rows_labels]
    
    # Convert filtered data to numpy array
    return np.array(filtered_data2d), filtered_xLabels, filtered_yLabels
      
def generate_distinct_colors(num_colors):
    """Generate distinct colors using HSV color space."""
    colors = []
    for i in range(num_colors):
        hue = i / num_colors
        saturation = 0.7
        value = 0.9
        r, g, b = colorsys.hsv_to_rgb(hue, saturation, value)
        colors.append(f'rgb({int(r * 255)},{int(g * 255)},{int(b * 255)})')
    return colors

def create_stacked_bar_graph(data2d, xLabels, yLabels, save_path='stacked_bar_graph.html'):
    """
    Creates and saves a stacked bar graph from given 2D numpy array data using Plotly.
    
    Parameters:
    - data2d (list of lists or numpy.ndarray): A 2D list or numpy array containing the data.
    - xLabels (list): A list of category labels for the x-axis.
    - yLabels (list): A list of labels for the y-axis (e.g., hours).
    - save_path (str): The path where the plot image will be saved.
    """
    # Identify columns to be removed based on their headers (label names) and indices (hours 24 and 25)
    exclude_columns_labels = ["Count", "PERCENT","TOTALS"]
    exclude_rows_labels = ["24:00", "25:00"]

    # Ensure input yLabels correspond to the data
    if len(yLabels) != len(data2d):
        raise ValueError(f"The length of yLabels {len(yLabels)} must match the number of rows in the data {len(data2d)}.")
    
    # Sanitize and filter the data
    sanitized_data, filtered_xLabels, filtered_yLabels = sanitize_and_filter_data_for_stacked_bar(data2d, xLabels, yLabels, exclude_columns_labels, exclude_rows_labels)
    
    # Ensure that the length of yLabels matches the number of rows (0 to n should be n+1 rows)
    if len(filtered_yLabels) != sanitized_data.shape[0]:
        raise ValueError(f"The length of filtered_yLabels {len(filtered_yLabels)} must match the number of rows in the data {sanitized_data.shape[0]}.")
    
    # Transpose the data so that hours are on the x-axis and categories are stacked in the y-axis
    transposed_data = sanitized_data.T
    
    fig = go.Figure()
    
    # Get unique colors for each category
    extended_colors = generate_distinct_colors(len(filtered_xLabels))
    
    for i, category in enumerate(filtered_xLabels):
        fig.add_trace(go.Bar(
            name=category,
            x=filtered_yLabels,
            y=transposed_data[i],
            marker_color=extended_colors[i % len(extended_colors)]  # Cycle through the colors if there are more categories than colors

        ))
    
    fig.update_layout(
        barmode='stack',
        title='Stacked Bar Graph by Hour',
        xaxis=dict(title='Hour'),
        yaxis=dict(title='Values'),
        legend_title_text='Categories',
        margin = {
            'l': 50,  #left margin
            'r': 120, #right margin
            't': 50,  #top margin
            'b': 50   #bottom margin
        }
 
    )
    
    # Save the graph to an HTML file
    fig.write_html(save_path)
    # Write it to a var and return the string
    graph_html = fig.to_html(full_html=False,include_plotlyjs='https://cdn.plot.ly/plotly-latest.min.js')
    return graph_html
 
def sanitize_and_filter_data(data2d, exclude_labels, xLabels):
    """
    Sanitize data by removing unwanted columns and converting to numeric values.
    
    Parameters:
    - data2d (list of lists): A 2D list containing the data.
    - exclude_labels (list): Labels to exclude from the data and x-axis.
    - xLabels (list): Current labels for the x-axis.
    
    Returns:
    - numpy.ndarray: Sanitized 2D numpy array with numeric data.
    - list: Filtered x-axis labels.
    """
    def to_numeric(value):
        try:
            if isinstance(value, str):
                # Remove any extra characters like '%' and convert to float
                return float(value.replace('%', '').strip())
            else:
                return float(value)
        except ValueError:
            return 0.0  # Default to 0 if conversion fails

    # Create a boolean array for columns to keep (not in exclude_labels)
    columns_to_keep = [label not in exclude_labels for label in xLabels]

    # Filter out the columns both from the data and xLabels
    filtered_data2d = []
    for row in data2d:
        filtered_row = [to_numeric(value) for keep, value in zip(columns_to_keep, row) if keep]
        filtered_data2d.append(filtered_row)

    filtered_xLabels = [label for label, keep in zip(xLabels, columns_to_keep) if keep]

    return np.array(filtered_data2d), filtered_xLabels

def create_heatmap(data2d, xLabels, yLabels, save_path='heatmap.html'):
    """
    Creates and saves a heatmap from given 2D numpy array data using Plotly.
    Parameters:
    - data2d (list of lists or numpy.ndarray): A 2D list or numpy array containing the data.
    - xLabels (list): A list of category labels for the x-axis.
    - yLabels (list): A list of labels for the y-axis (e.g., hours).
    - save_path (str): The path where the plot image will be saved.
    """
    excluded_columns = ["Count", "PERCENT", "TOTALS"]
    # Remove rows 24 and 25 by slicing the data and labels
    data2d = data2d[:24]
    yLabels = yLabels[:24]  # Ensure yLabels also excludes those rows

    # Sanitize and filter the data
    sanitized_data, filtered_xLabels = sanitize_and_filter_data(data2d, excluded_columns, xLabels)

    # Ensure that the length of yLabels matches the number of rows (0 to n should be n+1 rows)
    if len(yLabels) != sanitized_data.shape[0]:
        raise ValueError("The length of yLabels must match the number of rows in the data.")

    # Create the heatmap
    # Define a custom color scale where 0 is white
    color_scale = [
        [0, "lightgrey"],
        [0.3, "blue"],
        [0.6, 'green'],
        [0.75,'yellow'],
        [1,'red']
    ]
    fig = px.imshow(sanitized_data,
                    labels=dict(x="Category", y="Hour", color="Count"),
                    x=filtered_xLabels,
                    y=yLabels,                  
                    color_continuous_scale=color_scale)
    
    fig.update_layout(
        title='Heatmap of Counts by Category per Hour',
        xaxis_nticks=len(filtered_xLabels),
        yaxis_nticks=len(yLabels),
        margin=dict(l=0, r=0, t=30, b=0)

    )
    fig.update_xaxes(showticklabels=True, side='bottom', showline=True, linewidth=2, linecolor='black', mirror=True)
    fig.update_yaxes(showticklabels=True, showline=True, linewidth=2, linecolor='black', mirror=True)
   
    fig.write_html(save_path)  
    # Write it to a var and return the string
    graph_html = fig.to_html(full_html=False,include_plotlyjs='https://cdn.plot.ly/plotly-latest.min.js')
    return graph_html
  
   
def create_line_chart(data2d, xLabels, yLabels, save_path='line_chart.html'):
    fig = go.Figure()
    
    excluded_columns = ["Count", "PERCENT", "TOTALS"]
    # Remove rows 24 and 25 by slicing the data and labels
    data2d = data2d[:24]
    yLabels = yLabels[:24]  # Ensure yLabels also excludes those rows

    # Sanitize and filter the data
    sanitized_data, filtered_xLabels = sanitize_and_filter_data(data2d, excluded_columns, xLabels)

    # Ensure that the length of yLabels matches the number of rows (0 to n should be n+1 rows)
    if len(yLabels) != sanitized_data.shape[0]:
        raise ValueError("The length of yLabels must match the number of rows in the data.")

    # Remove rows with all zero elements and the corresponding categories
    nonzero_rows_indices = np.where(~np.all(sanitized_data == 0, axis=0))[0]  # find rows with non-zero elements
    sanitized_data = sanitized_data[:, nonzero_rows_indices]
    filtered_xLabels = [filtered_xLabels[i] for i in nonzero_rows_indices]  # update filtered_xLabels

    for i, category in enumerate(filtered_xLabels):
        fig.add_trace(go.Scatter(
            mode='lines+markers',
            name=category,
            x= [f'{j:02d}:00' for j in range(sanitized_data.shape[0])],  
            y=sanitized_data[:, i]
        ))

    fig.update_layout(
        title='Line Chart of Counts by Category per Hour',
        xaxis=dict(title='Hour'),
        yaxis=dict(title='Count'),
        legend_title_text='Category'
    )
    
    fig.write_html(save_path)
    # Write it to a var and return the string
    graph_html = fig.to_html(full_html=False,include_plotlyjs='https://cdn.plot.ly/plotly-latest.min.js')
    return graph_html



    
def save_summaries_to_db(date_str, hour, parsed_data):

    # Convert parsed_data to JSON string
    json_data = json.dumps(parsed_data)

    # Insert the record
    insert_query = """
    INSERT INTO SummaryLogs (Date, Hour, logData)
    VALUES (%s, %s, %s)
    """
    
    try:
        cursor.execute(insert_query, (date_str, hour, json_data))
        conn.commit()
    except mysql.connector.Error as err:
        print(f"DB Error {date_str} {hour} : {err}")
        conn.rollback()
        
def is_running_under_thonny():
    # Check for the 'THONNY_USER_DIR' environment variable
    return 'THONNY_USER_DIR' in os.environ

# Routines to access the E-Smith dbs
def parse_entity_line(line):
	"""
	Parses a single line of key-value pairs.

	:param line: Single line string to be parsed
	:return: Dictionary with keys and values
	"""
	parts = line.split('|')
	# First part contains the entity name and type in the format 'entity_name=type'
	entity_part = parts.pop(0)
	entity_name, entity_type = entity_part.split('=')
	
	entity_dict = {'type': entity_type}
	
	for i in range(0, len(parts)-1, 2):
		key = parts[i]
		value = parts[i+1]
		entity_dict[key] = value
	
	return entity_name, entity_dict

def parse_config(config_string):
    """
    Parses a multi-line configuration string where each line is an entity with key-value pairs.

    :param config_string: Multi-line string to be parsed
    :return: Dictionary of dictionaries with entity names as keys
    """
    config_dict = {}

    lines = config_string.strip().split('\n')
    for line in lines:
        line = line.strip()
        if line.startswith('#'):  # Skip lines that start with '#'
            continue
        entity_name, entity_dict = parse_entity_line(line)
        config_dict[entity_name] = entity_dict

    return config_dict
	
def read_config_file(file_path):
	"""
	Reads a configuration file and parses its contents.

	:param file_path: Path to the configuration file
	:return: Parsed configuration dictionary
	"""
	with open(file_path, 'r') as file:
		config_string = file.read()

	return parse_config(config_string)

def get_value(config_dict, entity, key, default=None):
    """
    Retrieves the value corresponding to the given key from a specific entity.

    :param config_dict: Dictionary of dictionaries with parsed config
    :param entity: Entity from which to retrieve the key's value
    :param key: Key whose value needs to be retrieved
    :param default: Default value to return if the entity or key does not exist
    :return: Value corresponding to the key, or the default value if the entity or key does not exist
    """
    return config_dict.get(entity, {}).get(key, default)


def is_private_ip(ip):
	try:
		# Convert string to an IPv4Address object
		ip_addr = ipaddress.ip_address(ip)
	except ValueError:
		return False
	# Define private IP ranges
	private_ranges = [
		ipaddress.ip_network('10.0.0.0/8'),
		ipaddress.ip_network('172.16.0.0/12'),
		ipaddress.ip_network('192.168.0.0/16'),
	]
	# Check if the IP address is within any of these ranges
	for private_range in private_ranges:
		if ip_addr in private_range:
			return True

	return False

def truncate_microseconds(timestamp):
	# Split timestamp into main part and microseconds
	try:
		main_part, microseconds = timestamp.split('.')
		# Truncate the last three digits of the microseconds
		truncated_microseconds = microseconds[:-3]
		# Combine the main part and truncated microseconds
		truncated_timestamp = f"{main_part}.{truncated_microseconds}"
	except Exception as e:
		print(f"{e} {timestamp}")
		raise ValueError
	# Remove the microseconds completely if they exist
	return truncated_timestamp.split('.')[0]

def read_in_relevant_log_file(file_path,analysis_date=yesterday):
	# Read the file and split each line into a list - timestamp and the rest
	log_entries = []
	skip_record_count = 0
	ignore_record_count = 0
	# Get the year of yesterday
	yesterday = datetime.now() - timedelta(days=1)
	yesterday_year = yesterday.year

	with codecs.open(file_path, 'rb','utf-8', errors='replace') as file:
		try:
			for Line in file:
				#extract time stamp
				try:
					entry = split_timestamp_and_data(Line)
					# compare with anal date
					timestamp_str = entry[0]; #truncate_microseconds(entry[0])
					#print(f"Timestamp:{timestamp_str}")
				except ValueError as e:
					#print(f"ValueError {e} on timestamp create {timestamp_str}:{entry[0]} {entry[1]}")
					skip_record_count += 1
					continue
				# Parse the timestamp string into a datetime object
				# Ignoring extra microseconds 
				try:
					timestamp = datetime.strptime(timestamp_str, "%b %d %H:%M:%S")
					# and add in gthe year of yesterday
					timestamp = timestamp.replace(year=yesterday_year)
				except ValueError as e:
					print(f"ValueError {e} on timestamp extract {timestamp_str}:{entry[1]}")
				#print(f"Stamps: {timestamp.date()} {analysis_date.date()}")
				if timestamp.date() == analysis_date.date():
					log_entries.append((timestamp, entry[1]))
				else:
					ignore_record_count += 1
		except UnicodeDecodeError as e:
			pass
	return [log_entries,skip_record_count,ignore_record_count]
	
def filter_summary_records(log_entries):
	# Return just the summary records
	filtered_log_entries = []
	skipped_entry_count = 0
	for line in log_entries:
		if '`' in line[1]:
			filtered_log_entries.append(line)
		else:
			skipped_entry_count += 1
	return [filtered_log_entries,skipped_entry_count]
	
def sort_log_entries(log_entries):
	# Sort the records, based on the timestamp
	sorted_entries = sorted(log_entries, key=lambda x: x[0])
	# and return a dictionary
	sorted_dict = {entry[0]: entry[1] for entry in sorted_entries}
	return sorted_dict
	
def parse_data(data):
	# Split data string into parts and map to named fields.
	# Adjust the field names and parsing logic according to your data format.
	# Split at the backtick - before it fields split at space, after, fields split at tab
	parts = data.split('`')
	fields1 = parts[0].strip().split() if len(parts) > 0 else []
	fields2 = parts[1].split('\t') if len(parts) > 1 else []
	# then merge them
	fields = fields1 + fields2
#	if fields[4] == ''local'host':
#		i = 0
#		print(f"len:{len(fields)}")
#		for part in fields:
#			print(f"{i}: {part}")
#			i  = i +1
#		quit()
	# and mapping:
	try:
		return_dict = {
			'sme': fields[0].strip() if len(fields) > 0 else None,
			'qpsmtpd': fields[1].strip() if len(fields) > 1 else None,
			'id': fields[2].strip() if len(fields) > 2 else None,
			'action': fields[3].strip() if len(fields) > 3 else None,
			'logterse': fields[4].strip() if len(fields) > 4 else None,
			'ip': fields[5].strip() if len(fields) > 5 else None,
			'sendurl': fields[6].strip() if len(fields) > 6 else None,     #1
			'sendurl1': fields[7].strip() if len(fields) > 7 else None,    #2
			'from-email': fields[8].strip() if len(fields) > 8 else None,  #3
			'error-reason': fields[8].strip() if len(fields) > 8 else None, #3
			'to-email': fields[9].strip() if len(fields) > 9 else None,		#4
			'error-plugin': fields[10].strip() if len(fields) > 10 else None,  #5
			'action1': fields[10].strip() if len(fields) > 10 else None,       #5
			'error-number' : fields[11].strip() if len(fields) > 11 else None, #6
			'sender': fields[12].strip() if len(fields) > 12 else None,      #7
			'error-msg' :fields[12].strip() if len(fields) > 12 else None,   #7
			'spam-status': fields[13].strip() if len(fields) > 13 else None, #8 
			'error-result': fields[13].strip() if len(fields) > 13 else None,#8
			# Add more fields as necessary
		}
	except:
		print(f"error:len:{len(fields)}")
		return_dict = {}  
	return return_dict

# def count_entries_by_hour(log_entries):
	# hourly_counts = defaultdict(int)
	# for entry in log_entries:
		# # Extract hour from the timestamp
		# timestamp = entry['timestamp']
		# hour = datetime.datetime.strptime(timestamp, '%Y-%m-%d %H:%M:%S').strftime('%Y-%m-%d %H')
		# hourly_counts[hour] += 1
	# return hourly_counts

def initialize_2d_array(num_hours, column_headers_len,reporting_date):
	num_hours += 1  # Adjust for the zeroth hour
	# Initialize the 2D list with zeroes
	return [[0] * column_headers_len for _ in range(num_hours)]

def search_2d_list(target, data):
	"""
	Search for a target string in a 2D list of variable-length lists of strings.

	:param target: str, the string to search for
	:param data: list of lists of str, the 2D list to search
	:return: int, the row number where the target string is found, or -1 if not found
	"""
	for row_idx, row in enumerate(data):
		if target in row:
			return row_idx
	return -1  # Return -1 if not found
	
def check_html2text_installed():
	try:
		# Check if html2text is installed by running 'which html2text'
		result = subprocess.run(
			['which', 'html2text'],
			check=True,
			stdout=subprocess.PIPE,
			stderr=subprocess.PIPE
		)

		# If the command finds html2text, it will output the path
		html2text_path = result.stdout.decode('utf-8').strip()
		
		if not html2text_path:
			raise FileNotFoundError
		
		print(f"html2text is installed at: {html2text_path}")
		return True

	except subprocess.CalledProcessError:
		print("html2text is not installed. Please install it using your package manager.", file=sys.stderr)
		return False    

def html_to_text(input_file, output_file):
	if not check_html2text_installed():
		sys.exit(1)
	try:
		# Run the html2text command with -b0 --pad-tables parameters
		result = subprocess.run(
			['html2text', '-b0', '--pad-tables', input_file],
			check=True,  # Raise a CalledProcessError on non-zero exit
			stdout=subprocess.PIPE,  # Capture stdout
			stderr=subprocess.PIPE   # Capture stderr
		)

		# Write the stdout from the command to the output file
		with open(output_file, 'w', encoding='utf-8') as outfile:
			outfile.write(result.stdout.decode('utf-8'))

		print(f"Converted {input_file} to {output_file}")
	except subprocess.CalledProcessError as e:
		print(f"Error occurred: {e.stderr.decode('utf-8')}", file=sys.stderr)
		sys.exit(e.returncode)

def get_html2text_version():
	try:
		result = subprocess.run(['html2text', '--version'], stdout=subprocess.PIPE, stderr=subprocess.PIPE, universal_newlines=True)
		# Ensure the result is treated as a string in Python 3.6+
		return result.stdout.strip()
	except subprocess.CalledProcessError as e:
		print(f"Error occurred while checking html2text version: {e}", file=sys.stderr)
		return None
 
def print_progress_bar(iteration, total, prefix='', suffix='', decimals=1, length=50, fill='█', print_end="\r"):
	"""
	Call in a loop to create a terminal progress bar
	@params:
		iteration   - Required : current iteration (Int)
		total       - Required : total iterations (Int)
		prefix      - Optional : prefix string (Str)
		suffix      - Optional : suffix string (Str)
		decimals    - Optional : positive number of decimals in percent complete (Int)
		length      - Optional : character length of bar (Int)
		fill        - Optional : bar fill character (Str)
		print_end   - Optional : end character (e.g. "\r", "\r\n") (Str)
	"""
	if total == 0:
		raise ValueError("Progress total is zero")
	percent = ("{0:." + str(decimals) + "f}").format(100 * (iteration / float(total)))
	filled_length = int(length * iteration // total)
	bar = fill * filled_length + '-' * (length - filled_length)
	print(f'\r{prefix} |{bar}| {percent}% {suffix}', end=print_end)
	# Print New Line on Complete
	if iteration == total:
		print()
 
def insert_string_after(original:str, to_insert:str, after:str) -> str:
	"""
	Insert to_insert into original after the first occurrence of after.
	
	:param original: The original string.
	:param to_insert: The string to be inserted.
	:param after: The set of characters after which the string will be inserted.
	:return: The new string with to_insert inserted after after.
	"""
	position = original.find(after)
	if position == -1:
		print(f"insert_string_after:({after}) string is not found in original")
		return original
	# Position of the insertion point
	insert_pos = position + len(after)
	
	return original[:insert_pos] + to_insert + original[insert_pos:]
	
def split_timestamp_and_data(log_entry: str) -> list:
	"""
	Split a log entry into timestamp and the rest of the data.
	
	:param log_entry: The log entry as a string.
	:return: A list with two entries: [timestamp, rest_of_data].
	"""
	# The timestamp is always the first part, up to the first space after the milliseconds
	# SME11 - the timestamp looks like this: "Dec 29 07:42:00 sme11 qpsmtpd-forkserver[942177]:<the rest>"
	#
	match = re.match(r'(\w{3} \d{1,2} \d{2}:\d{2}:\d{2}) (.+)', log_entry)
	if match:
		timestamp = match.group(1)
		rest_of_line = match.group(2).strip()  # Strip any leading spaces
	else:
		timestamp = None
		rest_of_line = log_entry  # If no match, return the whole line
	#print(f"ts:{timestamp}")
	return [timestamp, rest_of_line]
	
def render_sub_table(table_title,table_headers,found_values,get_character=None):
	# Get the total
	total_sum = sum(found_values.values())
	# and add in list with second element the percentage
	# Create a list of tuples with each tuple containing (key, value, percentage)
	if get_character:
		sub_result = [(key, value, 
						f"{round(value / total_sum * 100, 2)}",
						f"{get_character(key)}") for key, value in found_values.items()
						]
	else:
		sub_result = [(key, value, 
						f"{round(value / total_sum * 100, 2)}") for key, value in found_values.items()
						]
		
	sub_result.sort(key=lambda x: float(x[2]), reverse=True)  # Sort by percentage in descending order
	sub_template_path = template_dir+'mailstats-sub-table.html.pt'
	# Load the template
	with open(sub_template_path, 'r') as template_file:
		template_content = template_file.read()
	# Create a Chameleon template instance
	try:
		template = PageTemplate(template_content)
		# Render the template with the 2D array data and column headers
		try:
			rendered_html = template(array_2d=sub_result, column_headers=table_headers, title=table_title)
		except Exception as e:
			raise ValueError(f"{table_title}: A chameleon controller render error occurred: {e}")
	except Exception as e:
		raise ValueError(f"{table_title}: A chameleon controller template error occurred: {e}")
	return rendered_html
	
def get_character_in_reject_list(code):
	if code in BadCountries:
		return "*"
	else:
		return ""
	
        
def read_html_from_file(filepath):
	"""
	Reads HTML content from a given file.

	Args:
		filepath (str): Path to the HTML file.
	
	Returns:
		str: HTML content of the file.
	"""
	# Need to add in here the contents of the css file at the end of the head section.
	with open(filepath, 'r', encoding='utf-8') as file:
		html_contents = file.read()
	print("reading from html file")
	# Get Filepath
	css_path = os.path.dirname(filepath)+"/../css/mailstats.css"
	# Read in CSS 
	with open(css_path, 'r', encoding='utf-8') as file:
		css_contents = file.read()
	html_contents = insert_string_after(html_contents,"\n"+css_contents,"<!--css here-->")
	return html_contents
	
def read_text_from_file(filepath):
	"""
	Reads plain text content from a given file.

	Args:
		filepath (str): Path to the text file.
	
	Returns:
		str: Text content of the file.
	"""
	try:
		with open(filepath, 'r', encoding='utf-8') as file:
			return file.read()
	except:
		print(f"{filepath} not found")
		return

def send_email(subject, from_email, to_email, smtp_server, smtp_port, HTML_content=None, Text_content=None, smtp_user=None, smtp_password=None):
	"""
	Sends an HTML email.

	Args:
		html_content (str): The HTML content to send in the email.
		subject (str): The subject of the email.
		from_email (str): The sender's email address.
		to_email (str): The recipient's email address.
		smtp_server (str): SMTP server address.
		smtp_port (int): SMTP server port.
		smtp_user (str, optional): SMTP server username. Default is None.
		smtp_password (str, optional): SMTP server password. Default is None.
	"""
	#Example (which works!)
			# send_email(
			# subject="Your subject",
			# from_email="mailstats@bjsystems.co.uk", 
			# to_email="brianr@bjsystems.co.uk", 
			# smtp_server="mail.bjsystems.co.uk", 
			# smtp_port=25
			# HTML_content=html_content, 
			# Text_content=Text_content, 
		# )

	# Set up the email
	msg = MIMEMultipart('alternative')
	msg['Subject'] = subject
	msg['From'] = from_email
	msg['To'] = to_email
	
	if HTML_content:
		part = MIMEText(HTML_content, 'html')
		msg.attach(part)
	if Text_content:
		part = MIMEText(Text_content, 'plain')
		msg.attach(part)

	# Sending the email
	with smtplib.SMTP(smtp_server, smtp_port) as server:
		server.starttls()  # Upgrade the connection to secure
		if smtp_user and smtp_password:
			server.login(smtp_user, smtp_password)  # Authenticate only if credentials are provided
		server.sendmail(from_email, to_email, msg.as_string())
 
def replace_between(text, start, end, replacement):
    # Escaping start and end in case they contain special regex characters
    pattern = re.escape(start) + '.*?' + re.escape(end)
    # Using re.DOTALL to match any character including newline
    replaced_text = re.sub(pattern, replacement, text, flags=re.DOTALL)
    return replaced_text
    
def get_heading():
	#
	# Needs from anaytsis
		# SATagLevel - done
		# SARejectLevel - done
		# warnnoreject - done
		# totalexamined - done
		# emailperhour - done
		# spamavg  - done
		# rejectspamavg - done
		# hamavg - done
		# DMARCSendCount - done
		# hamcount - done
		# DMARCOkCount - deone

	# Clam Version/DB Count/Last DB update
	clam_output = subprocess.getoutput("freshclam -V")
	clam_info = f"Clam Version/DB Count/Last DB update: {clam_output}"

	# SpamAssassin Version
	sa_output = subprocess.getoutput("spamassassin -V")
	sa_info = f"SpamAssassin Version: {sa_output}"

	# Tag level and Reject level
	tag_reject_info = f"Tag level: {SATagLevel}; Reject level: {SARejectLevel} {warnnoreject}"

	# SMTP connection stats
	smtp_stats = f"External SMTP connections accepted: {totalexternalsmtpsessions}\n"\
				 f"Internal SMTP connections accepted: {totalinternalsmtpsessions}"

	if len(connection_type_counts)>0:
		for connection_type in connection_type_counts.keys():
			smtp_stats += f"\nCount of {connection_type} connections: {connection_type_counts[connection_type]}"

	smtp_stats = smtp_stats + f"\nEmails per hour: {emailperhour:.1f}/hr\n"\
				 f"Average spam score (accepted): {spamavg or 0:.2f}\n"\
				 f"Average spam score (rejected): {rejectspamavg or 0:.2f}\n"\
				 f"Average ham score: {hamavg or 0:.2f}\n"\
				 f"Number of DMARC reporting emails sent: {DMARCSendCount or 0} (not shown on table)"

	# DMARC approved emails
	dmarc_info = ""
	if hamcount != 0:
		dmarc_ok_percentage = DMARCOkCount * 100 / hamcount
		dmarc_info = f"Number of emails approved through DMARC: {DMARCOkCount or 0} ({dmarc_ok_percentage:.2f}% of Ham count)"

	# Accumulate all strings
	header_str = "\n".join([clam_info, sa_info, tag_reject_info, smtp_stats, dmarc_info])
	# switch newlines to <br />
	header_str = header_str.replace("\n","<br />")
	return header_str

if __name__ == "__main__":
	try:
		chameleon_version = pkg_resources.get_distribution("Chameleon").version
	except pkg_resources.DistributionNotFound:
		chameleon_version = "Version information not available"
	python_version = sys.version
	python_version = python_version[:8]
	current_datetime = datetime.now()
	formatted_datetime = current_datetime.strftime("%Y-%m-%d %H:%M")
	
	# Command line parameters
	parser = argparse.ArgumentParser(description="Mailstats")
	parser.add_argument('-d', '--date', help='Specify a valid date (yyyy-mm-dd) for the analysis', default=formatted_yesterday)
	parser.add_argument('-ef', '--emailfile', help='Save an html file of the email sent (y/N)', default='n')
	parser.add_argument('-tf', '--textfile', help='Save a txt file of the html page (y/N)', default='n')
	parser.add_argument('--version', action='version', version='%(prog)s '+Mailstats_version+" built on "+build_date_time)
	parser.add_argument('-db', '--dbsave', help='Force save of summary logs in DB (y/N)', default='n')
	
	args = parser.parse_args()

	analysis_date = args.date
	# and check its format is valid
	try:
		datetime.strptime(analysis_date, '%Y-%m-%d')
	except ValueError:
		print("Specify a valid date (yyyy-mm-dd) for the analysis")
		(quit)()

	anaysis_date_obj = datetime.strptime(analysis_date, '%Y-%m-%d')
	noemailfile = args.emailfile.lower()  == 'n'
	notextfile = args.textfile.lower()  == 'n'
	isThonny = is_running_under_thonny()
	forceDbSave = args.dbsave.lower()  == 'y'
	
	#E-Smith Config DBs
	if isThonny:
		db_dir = "/home/brianr/SME11Build/GITFiles/smecontribs/smeserver-mailstats/"
	else:
		db_dir = "/home/e-smith/db/"
		
	#From SMEServer DB
	ConfigDB = read_config_file(db_dir+"configuration")

	DomainName = get_value(ConfigDB, "DomainName", "type") 							#'bjsystems.co.uk' #  $cdb->get('DomainName')->value;
	
	hello_string = "Mailstats:"+Mailstats_version+' for '+DomainName+" for "+analysis_date+" Printed at:"+formatted_datetime
	print(hello_string)
	version_string = "Chameleon:"+chameleon_version+" Python:"+python_version
	if isThonny:
		version_string = version_string + "...under Thonny"
	print(version_string)

	RHSenabled = get_value(ConfigDB, "qpsmtpd", "RHSBL","disabled") == "enabled"    #True  #( $cdb->get('qpsmtpd')->prop('RHSBL') eq 'enabled' );
	DNSenabled = get_value(ConfigDB, "qpsmtpd", "DNSBL","disabled") == "enabled"  	#True  #( $cdb->get('qpsmtpd')->prop('DNSBL') eq 'enabled' );

	SARejectLevel = int(get_value(ConfigDB, "spamassassin", "RejectLevel","12")) 	#12  #$cdb->get('spamassassin')->prop('RejectLevel');
	SATagLevel = int(get_value(ConfigDB, "spamassassin", "TagLevel","4")) 			#4  #$cdb->get('spamassassin')->prop('TagLevel');
	if SARejectLevel == 0:
		warnnoreject = "(*Warning* 0 = no reject)"
	else:
		warnnoreject = ""

	EmailAddress = get_value(ConfigDB,"mailstats","Email","admin@"+DomainName)
	if '@' not in EmailAddress:
		EmailAddress = EmailAddress+"@"+DomainName
	EmailTextOrHTML = get_value(ConfigDB,"mailstats","EmailTextOrHTML","Both") 		#Text or Both or None
	EmailHost = get_value(ConfigDB,"mailstats","EmailHost","localhost") 			#Default will be localhost
	EmailPort = int(get_value(ConfigDB,"mailstats","EmailPort","25"))
	EMailSMTPUser = get_value(ConfigDB,"mailstats","EmailUser")   					#None = default => no authenticatioon needed
	EMailSMTPPassword = get_value(ConfigDB,"mailstats","EmailPassword")
	
	BadCountries = get_value(ConfigDB,"qpsmtpd","BadCountries")
	
	# Db save control
	saveData = get_value(ConfigDB,"mailstats","SaveDataToMySQL","no") == 'yes' or forceDbSave
	if saveData:
		DBName = "mailstats";
		DBHost = get_value(ConfigDB,'mailstats','DBHost',"localhost")
		DBPort = get_value(ConfigDB,'mailstats','DBPort',"3306")
		DBName = 'mailstats'
		DBPassw = 'mailstats'
		DBUser = 'mailstats'
		UnixSocket = "/var/lib/mysql/mysql.sock" 
		# see if the DB exists
		# Try to Establish a database connection
		try:
			conn = mysql.connector.connect(
				host=DBHost,
				user=DBUser,
				password=DBPassw,
				database=DBName,
				port=DBPort,
				unix_socket=UnixSocket
			)
			cursor = conn.cursor()
			# Create table if it doesn't exist
			cursor.execute("""
			CREATE TABLE IF NOT EXISTS SummaryLogs (
				id INT AUTO_INCREMENT PRIMARY KEY,
				Date DATE,
				Hour INT,
				logData TEXT
			)
			""")
			# and prune the DB here if needed.
			# Delete existing records for the given date
			try:
				delete_query = """
				DELETE FROM SummaryLogs
				WHERE Date = %s
				"""
				cursor.execute(delete_query, (analysis_date,))   #Don't forget the syntactic sugar of the extra comma to make it a tuple!
				# Get the number of records deleted
				rows_deleted = cursor.rowcount
				if rows_deleted > 0:
					print(f"Deleted {rows_deleted} rows for {analysis_date} ")
			except mysql.connector.Error as e:
				print(f"SQL Delete failed ({delete_query}) ({e}) ")
		except mysql.connector.Error as e:
			print(f"Unable to connect to {DBName} on {DBHost} port {DBPort} error ({e}) ")
			saveData = False
	
	nolinks = not saveData 
	# Not sure we need these...
	# if (ConfigDB,"qpsmtpd","RHSBL").lower() == 'enabled':
		# RBLList = get_value(ConfigDB,"qpsmtpd","RBLList")
	# else:
		# RBLList = ""
	# if (ConfigDB,"qpsmtpd","RBLList").lower() == 'enabled':
		# SBLLIst = get_value(ConfigDB,"qpsmtpd","SBLLIst")
	# else:
		# RBLList = ""
	# if (ConfigDB,"qpsmtpd","RBLList").lower() == 'enabled':
		# UBLList = get_value(ConfigDB,"qpsmtpd","UBLLIst")
	# else:
		# RBLList = ""
	
	FetchmailIP = '127.0.0.200';       	#Apparent Ip address of fetchmail deliveries
	WebmailIP = '127.0.0.1';           	#Apparent Ip of Webmail sender
	localhost = 'localhost';           	#Apparent sender for webmail
	FETCHMAIL = 'FETCHMAIL';   			#Sender from fetchmail when Ip address not 127.0.0.200 - when qpsmtpd denies the email
	MAILMAN = "bounces";        		#sender when mailman sending when orig is localhost
	DMARCDomain="dmarc"; 				#Pattern to recognised DMARC sent emails (this not very reliable, as the email address could be anything)
	DMARCOkPattern="dmarc: pass";  		#Pattern to use to detect DMARC approval

	num_hours = 25  # Represents hours from 0 to 23 - adds extra one for column totals and another for percentages

	log_file = logs_dir+'current.log'
	log_entries,skip_count,ignored_count = read_in_relevant_log_file(log_file,anaysis_date_obj)
	print(f"Found {len(log_entries)} entries in log for for {anaysis_date_obj.strftime('%Y-%m-%d')} Ignored: {ignored_count} skipped: {skip_count}")
	summary_log_entries,skip_count = filter_summary_records(log_entries)
	print(f"Found {len(summary_log_entries)} summary entries and skipped {skip_count} entries")
	sorted_log_dict = sort_log_entries(summary_log_entries)
	print(f"Sorted {len(sorted_log_dict)} entries")

	columnHeaders = ['Count','WebMail','Local','MailMan','Relay','DMARC','Virus','RBL/DNS','Geoip.','Non.Conf.','Karma','Rej.Load','Del.Spam','Qued.Spam?','  Ham','TOTALS','PERCENT']
	# dict for each colum identifying plugin that increments count
	columnPlugin = [''] * 17
	columnPlugin[Hour] = [] 
	columnPlugin[WebMail] = []
	columnPlugin[Local] = [] 
	columnPlugin[MailMan] = []
	columnPlugin[DMARC] = ['dmarc'] 
	columnPlugin[Virus] = ['pattern_filter', 'virus::pattern_filter','virus::clamav'] 
	columnPlugin[RBLDNS] = ['rhsbl', 'dnsbl','uribl']
	columnPlugin[Geoip] = ['check_badcountries'] 
	columnPlugin[NonConf] = ['check_earlytalker','check_relay','check_norelay', 'require_resolvable_fromhost'
							 ,'check_basicheaders','check_badmailfrom','check_badrcptto_patterns'
							 ,'check_badrcptto','check_spamhelo','check_goodrcptto extn','rcpt_ok'
							 ,'check_goodrcptto','check_smtp_forward','count_unrecognized_commands','tls','auth::auth_cvm_unix_local'
							 ,'auth::auth_imap', 'earlytalker','resolvable_fromhost','relay','headers','mailfrom','badrcptto','helo'
							 ,'check_smtp_forward','sender_permitted_from']
	columnPlugin[RejLoad] = ['loadcheck']
	columnPlugin[DelSpam] = []
	columnPlugin[QuedSpam] = []
	columnPlugin[Ham] = [] 
	columnPlugin[TOTALS] = []
	columnPlugin[PERCENT] = []
	columnPlugin[Karma] = ['karma']
			
	columnHeaders_len = len(columnHeaders)
	columnCounts_2d = initialize_2d_array(num_hours, columnHeaders_len,analysis_date)
	
	virus_pattern = re.compile(r"Virus found: (.*)")
	found_viruses = defaultdict(int)
	
	found_qpcodes = defaultdict(int)
	qpcodes_pattern = re.compile(r"(\(.*\)).*'")
	i = 0;
	sorted_len= len(sorted_log_dict)
	#unless none to show
	spamavg = 0;
	spamqueuedcount = 0
	hamcount = 0
	hamavg = 0
	rejectspamcount = 0
	rejectspamavg = 0
	DMARCSendCount = 0
	totalexamined = 0
	total_qpsmtpd = 0
	total_sqpsmtpd = 0
	total_uqpsmtpd = 0
	
	if sorted_len > 0:
		if isThonny:
			# Initial call to print the progress bar
			print_progress_bar(0, sorted_len, prefix='Progress:', suffix='Complete', length=50)
		for timestamp, data in sorted_log_dict.items():
			i += 1
			totalexamined += 1
			if isThonny:
				print_progress_bar(i, sorted_len, prefix='Scanning for main table:', suffix='Complete', length=50)
			# Count of in which hour it falls      
			# Parse the timestamp string into a datetime object
			dt = timestamp
			hour = dt.hour
			# parse the data
			parsed_data = parse_data(data)
			#if hour == 15:
			#	print(f"Abs:{hour} {timestamp} {parsed_data['sendurl']} {parsed_data['from-email']}")
			#print(f"{parsed_data}")
			#Take out the mailstats email
			if 'mailstats' in parsed_data['from-email'] and DomainName in parsed_data['from-email']:
				continue
			# Save the data here if necessary
			if saveData:
				save_summaries_to_db(anaysis_date_obj.strftime('%Y-%m-%d'),hour,parsed_data)
			#Count the number of emails through each of qpsmtpd, uqpsmtpd and sqpsmtpd
			# the forkserver column in the log indicates it.
			if parsed_data['qpsmtpd'].startswith ('qpsmtpd'):
				total_qpsmtpd +=1
			elif parsed_data['qpsmtpd'].startswith ('sqpsmtpd'):
				total_sqpsmtpd += 1
			elif parsed_data['qpsmtpd'].startswith ('uqpsmtpd'):
				total_uqpsmtpd +=1
			# Increment Count in which headings it falls
			#Hourly count and column total
			columnCounts_2d[hour][Hour] += 1
			columnCounts_2d[ColTotals][Hour] += 1
			#Row Totals
			columnCounts_2d[hour][TOTALS] += 1
			#Total totals
			columnCounts_2d[ColTotals][TOTALS] += 1
			
			# first spot the fetchmail and 'local' deliveries.
			#Local send
			#print(f"{DomainName} {parsed_data['sendurl']}")
			if DomainName in parsed_data['sendurl']:
				#print(f"{DomainName} {parsed_data['sendurl']}")
				columnCounts_2d[hour][Local] += 1
				columnCounts_2d[ColTotals][Local] += 1
			#Relay or webmail
			elif not is_private_ip(parsed_data['ip']) and is_private_ip(parsed_data['sendurl1']) and parsed_data['action1'] == 'queued':
				#Relay
				columnCounts_2d[hour][Relay] += 1
				columnCounts_2d[ColTotals][Relay] += 1
			elif WebmailIP in parsed_data['sendurl1'] and not is_private_ip(parsed_data['ip']):
				#webmail
				columnCounts_2d[hour][WebMail] += 1
				columnCounts_2d[ColTotals][WebMail] += 1
				
			elif localhost in parsed_data['sendurl']:
				# but not if it comes from fetchmail
				if not FETCHMAIL in parsed_data['sendurl1']:
					# might still be from mailman here
					if MAILMAN in parsed_data['sendurl1']:
						#$mailmansendcount++;
						#$localsendtotal++;
						columnCounts_2d[hour][MailMan] += 1
						columnCounts_2d[ColTotals][MailMan] += 1
						#$counts{$abshour}{$CATMAILMAN}++;
						#$localflag = 1;
					else:
						#Or sent to the DMARC server
						#check for email address in $DMARC_Report_emails string
						#my $logemail = $log_items[4];
						if DMARCDomain in parsed_data['from-email']: #(index($DMARC_Report_emails,$logemail)>=0) or 
							#$localsendtotal++;
							DMARCSendCount += 1
							#localflag = 1;
						else:
							# ignore incoming localhost spoofs
							if not 'msg denied before queued' in parsed_data['error-msg']:
								#Webmail
								#$localflag = 1;
								#$WebMailsendtotal++;
								columnCounts_2d[hour][WebMail] += 1
								columnCounts_2d[ColTotals][WebMail] += 1
								#$WebMailflag = 1;
				else:
					#$localflag = 1;
					#$WebMailsendtotal++;
					#$WebMailflag = 1;
					columnCounts_2d[hour][WebMail] += 1
					columnCounts_2d[ColTotals][WebMail] += 1




			#Queued email
			if parsed_data['action'] == '(queue)':
				columnCounts_2d[hour][Ham] += 1
				columnCounts_2d[ColTotals][Ham] += 1
				# spamassassin not rejected
				if parsed_data.get('spam-status') is not None and isinstance(parsed_data['spam-status'], str):
					if parsed_data['spam-status'].lower().startswith('no'):
						#Extract other parameters from this string
						# example: No, score=-3.9 
						spam_pattern = re.compile(r'score=(-?\d+\.\d+) required=(-?\d+\.\d+)')
						match = re.search(spam_pattern, parsed_data['spam-status'])
						if match:
							score = float(match.group(1))
							if score < float(SATagLevel):
								# Accumulate allowed score (inc negatives?)
								hamavg += score
								hamcount += 1
			#spamassasin rejects
			if parsed_data.get('spam-status') is not None and isinstance(parsed_data['spam-status'], str):
				if parsed_data['spam-status'].lower().startswith('yes'):
					#Extract other parameters from this string
					# example: Yes, score=10.3 required=4.0 autolearn=disable
					spam_pattern = re.compile(r'score=(-?\d+\.\d+) required=(-?\d+\.\d+)')
					match = re.search(spam_pattern, parsed_data['spam-status'])
					if match:
						score = float(match.group(1))
						required = float(match.group(2))
						if score >= SARejectLevel:
							columnCounts_2d[hour][DelSpam] += 1
							columnCounts_2d[ColTotals][DelSpam] += 1
							rejectspamavg += score
							rejectspamcount += 1
						elif score >= required:
							columnCounts_2d[hour][QuedSpam] += 1
							columnCounts_2d[ColTotals][QuedSpam] += 1
							spamavg += score
							spamqueuedcount += 1
				

					
			# Count the qpsmtpd codes
			if parsed_data['error-plugin'].strip() == 'naughty':
				if parsed_data['error-msg'].startswith("(dnsbl)"):
					columnCounts_2d[hour][RBLDNS]+= 1
					columnCounts_2d[ColTotals][RBLDNS]+= 1
				elif parsed_data['error-msg'].startswith("(karma)"):
					columnCounts_2d[hour][KARMA] += 1
					columnCounts_2d[ColTotals][KARMA]+= 1
				elif parsed_data['error-msg'].startswith("(helo)"):
					columnCounts_2d[hour][RBLDNS] += 1
					columnCounts_2d[ColTotals][RBLDNS]+= 1
			else:
				match = qpcodes_pattern.match(parsed_data['action1'])
				if match:
					rejReason = match.group(1)
					found_qpcodes[parsed_data['error-plugin']+"-"+rejReason] += 1
				else:
					found_qpcodes[parsed_data['action1']] += 1
			
			#Now increment the column which the plugin name indicates
			if parsed_data['action'] == '(deny)' and parsed_data['error-plugin']:
				if parsed_data['error-plugin']:
					row = search_2d_list(parsed_data['error-plugin'],columnPlugin)
					if not row == -1:
						columnCounts_2d[hour][row] += 1
						columnCounts_2d[ColTotals][row] += 1
						# a few ad hoc extra extractons of data
						if row == Virus:
							match = virus_pattern.match(parsed_data['action1'])
							if match:
								found_viruses[match.group(1)] += 1
							else:
								found_viruses[parsed_data['action1']] += 1
					else:
						found_qpcodes[parsed_data['action1']] += 1
			if isThonny:
				print() #seperate the [progress bar]
	# Compute percentages
	total_Count  = columnCounts_2d[ColTotals][TOTALS]
	#Column of percentages
	for row in range(ColTotals):
		if total_Count == 0:
			percentage_of_total = 0
		else:
			percentage_of_total = f"{round(round(columnCounts_2d[row][TOTALS] / total_Count,4) * 100,1)}%"
		columnCounts_2d[row][PERCENT] = percentage_of_total
	#Row of percentages
	for col in range(TOTALS):
		if total_Count == 0:
			percentage_of_total = 0
		else:
			percentage_of_total = f"{round(round(columnCounts_2d[ColTotals][col] / total_Count,4) * 100,1)}%"
		columnCounts_2d[ColPercent][col] = percentage_of_total
	# and drop in the 100% to make it look correct!
	columnCounts_2d[ColPercent][PERCENT] = '100%'
	columnCounts_2d[ColTotals][PERCENT] = '100%'
	columnCounts_2d[ColPercent][TOTALS] = '100%'
	
	#other stats
	emailperhour = (totalexamined / 24)
	if not spamqueuedcount == 0:
		spamavg = spamavg / spamqueuedcount
	if not rejectspamcount == 0:
		rejectspamavg = rejectspamavg / rejectspamcount
	if not hamcount == 0:
		hamavg = hamavg / hamcount

	# Now scan for the other lines in the log of interest
	found_countries = defaultdict(int)
	geoip_pattern = re.compile(r".*check_badcountries: GeoIP Country: (.*)")
	dmarc_pattern = re.compile(r".*dmarc: pass")
	helo_pattern = re.compile(r".*Accepted connection.*?from (\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}) \/ ([\w.-]+)")
	connect_type_pattern = re.compile(r".*connect via (.*)")
	total_countries = 0
	DMARCOkCount = 0
	totalinternalsmtpsessions = 0
	totalexternalsmtpsessions = 0

	i = 0
	j = 0
	log_len = len(log_entries)
	#connection_type_counts = defaultdict(int)
	connection_type_counts = {"qpsmtp":total_qpsmtpd,"sqpsmtp":total_sqpsmtpd,"uqpsmtp":total_uqpsmtpd}
	print(f"Con:{connection_type_counts}")
	if log_len > 0:
		if isThonny:
			print_progress_bar(0, log_len, prefix='Progress:', suffix='Complete', length=50)
		for data in log_entries:
			i += 1
			if isThonny:
				print_progress_bar(i, log_len, prefix='Scanning for sub tables:', suffix='Complete', length=50)
				
			# Match initial connection message
			try:
				match = helo_pattern.match(data[1])
				if match:
					ip  = match.group(1)
					fqdn = match.group(2)
					if is_private_ip(ip):
						totalinternalsmtpsessions += 1
					else:
						totalexternalsmtpsessions += 1
					continue
			except Exception as e:
				print(f" Helo pattern error {e} {data[1]} {analysis_date}")
				continue
					
			#Pull out Geoip countries for analysis table
			try:
				match = geoip_pattern.match(data[1])
				if match:
					j += 1
					country = match.group(1)
					found_countries[country] += 1
					total_countries += 1
					continue
			except Exception as e:
				print(f" Geoip pattern error {e} {data[1]} {analysis_date}")
				continue
			
			#Pull out DMARC approvals
			match = dmarc_pattern.match(data[1])
			if match:
				DMARCOkCount += 1
				continue

			#Pull out type of connection
			match = connect_type_pattern.match(data[1])
			if match:
				connection_type = match.group(1)
				connection_type_counts[connection_type] += 1
				continue

	#Compute next and previous dates
	day_format = "%Y-%m-%d"
	# Convert the time string to a datetime object
	date_obj = datetime.strptime(analysis_date, day_format)
	# Compute the next date by adding one day
	next_date = date_obj + timedelta(days=1)
	# Compute the previous date by subtracting one day
	previous_date = date_obj - timedelta(days=1)
	# Convert the datetime objects back to strings in the desired format
	next_date_str = next_date.strftime(day_format)
	previous_date_str = previous_date.strftime(day_format)

	# Create graphs of data
	yLabels = [f'{i:02d}:00' for i in range(len(columnCounts_2d))]
	stacked_Bar_html = create_stacked_bar_graph(columnCounts_2d,columnHeaders,yLabels,html_page_dir+'stacked_bar_'+analysis_date+'.html')
	heatmap_html = create_heatmap(columnCounts_2d,columnHeaders,yLabels,html_page_dir+'heatmap_'+analysis_date+'.html')
	line_graph_html = create_line_chart(columnCounts_2d,columnHeaders,yLabels,html_page_dir+'line_graph_'+analysis_date+'.html')

	#Now apply the results to the chameleon template - main table
	# Path to the template file
	template_path = template_dir+'mailstats.html.pt'
	# Load the template
	with open(template_path, 'r') as template_file:
		template_content = template_file.read()
	#Use the hello string to create a suitable heading for the web page
	html_title = hello_string.replace("Printed at"," <span class='greyed-out'>Printed at")
	html_title += "</span>"
	
	# Create a Chameleon template instance
	try:
		template = PageTemplate(template_content)
		# Render the template with the 2D array data and column headers
		try:
			rendered_html = template(array_2d=columnCounts_2d, column_headers=columnHeaders, 
										reporting_date=analysis_date, title=html_title, 
										version=version_string,
										nolinks=nolinks,
										stacked_bar_graph=stacked_Bar_html,
										heatmap=heatmap_html,
										line_graph=line_graph_html,
										PreviousDate=previous_date_str,
										NextDate=next_date_str,
										DomainName=DomainName,
										)
		except Exception as e:
			print(f"Chameleon template Exception {e}")
	except Exception as e:
		print(f"Chameleon render Exception {e}")
		
	total_html = rendered_html
	# Add in the header information
	rendered_html = get_heading()
	total_html =  insert_string_after(total_html,rendered_html, "<!---Add in header information here -->")

	#add in the subservient tables..

	#qpsmtd codes
	qpsmtpd_headers = ["Reason",'Count','Percent']
	qpsmtpd_title = 'Qpsmtpd codes league table:'
	rendered_html = render_sub_table(qpsmtpd_title,qpsmtpd_headers,found_qpcodes)
	# Add it to the total 
	total_html = insert_string_after(total_html,rendered_html, "<!---Add in sub tables here -->")
	
	#Geoip Country codes
	geoip_headers  = ['Country','Count','Percent','Rejected?']
	geoip_title = 'Geoip results:'
	rendered_html = render_sub_table(geoip_title,geoip_headers,found_countries,get_character_in_reject_list)
	# Add it to the total 
	total_html = insert_string_after(total_html,rendered_html, "<!---Add in sub tables here -->")
	
	if saveData:
		# Close the connection
		cursor.close()
		conn.close()
	
	# Write the rendered HTML to a file
	output_path = html_page_dir+'mailstats_for_'+analysis_date
	output_path = output_path.replace(' ','_')
	with open(output_path+'.html', 'w') as output_file:
		output_file.write(total_html)
	#and create a text version if the local version of html2text is suffiicent
	if get_html2text_version() == '2019.9.26':
		# Get a temporary file name
		temp_file_name = tempfile.mktemp()
		html_to_text(output_path+'.html',temp_file_name)
		print(f"Rendered HTML saved to {temp_file_name}")
		# and save it if required
		if not notextfile:
			text_file_path = output_path+'.txt'
			# and rename it
			os.rename(temp_file_name, text_file_path)
		else:
			text_file_path = temp_file_name
	else:
		text_file_path = ""
	
	
	html_content = None
	text_content = None
	#Now see if Email required
	if EmailTextOrHTML:
		if EmailTextOrHTML == "HTML" or EmailTextOrHTML == "Both":
			# Send html email (default))
			filepath = html_page_dir+"mailstats_for_"+analysis_date+".html"
			html_content = read_html_from_file(filepath)
			# Replace the Navigation by a "See in browser" prompt
			replace_str = f"<div class='divseeinbrowser' style='text-align:center;'><a class='seeinbrowser' href='http://{DomainName}/mailstats/mailstats_for_{analysis_date}.html'>See in browser</a></div>"
			html_content = replace_between(html_content, "<div class='linksattop'>", ">Next</a></div>", replace_str)
			if not noemailfile:
				# Write out the email html to a web page
				email_file = html_page_dir + "Email_mailstats_for_"+analysis_date
				with open(email_file+'.html', 'w') as output_file:
					output_file.write(html_content)
		if EmailTextOrHTML == "Text" or EmailTextOrHTML == "Both":
			#filepath = html_page_dir+"mailstats_for_"+analysis_date+".txt"
			if not text_file_path == "":
				text_content = read_text_from_file(text_file_path)
			else:
				text_content = "No text avaiable as html2text (was not "
		if EMailSMTPUser:
			# Send authenticated
			print("Sending authenticated")
			send_email(
				html_content=email_content, 
				subject="Mailstats for "+analysis_date,
				from_email="mailstats@"+DomainName, 
				to_email=EmailAddress, 
				smtp_server=EmailHost, 
				smtp_port=EmailPort,
				HTML_content=html_content, 
				Text_content=text_content,
				smtp_user=EMailSMTPUser,
				smtp_password=EMailSMTPPassword
			)
		else:
			# No authentication
			print(f"Sending non authenticated {EmailAddress} {EmailHost}")
			try:
				send_email(
					subject="Mailstats for "+analysis_date,
					from_email="mailstats@"+DomainName, 
					to_email=EmailAddress, 
					smtp_server=EmailHost, 
					smtp_port=EmailPort,
					HTML_content=html_content, 
					Text_content=text_content 
				)
			except Exception as e:
				print(f"Email Exception {e}")