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import re
from dateutil.parser import parse
from num2words import num2words
import inflect
from ftfy import fix_text

# Initialize the inflect engine
inflect_engine = inflect.engine()

# Define alphabet pronunciation mapping
alphabet_map = {
    "A": " Eh ", "B": " Bee ", "C": " See ", "D": " Dee ", "E": " Eee ",
    "F": " Eff ", "G": " Jee ", "H": " Aitch ", "I": " Eye ", "J": " Jay ",
    "K": " Kay ", "L": " El ", "M": " Emm ", "N": " Enn ", "O": " Ohh ",
    "P": " Pee ", "Q": " Queue ", "R": " Are ", "S": " Ess ", "T": " Tee ",
    "U": " You ", "V": " Vee ", "W": " Double You ", "X": " Ex ", "Y": " Why ", "Z": " Zed "
}

TECH_ACRONYM_REPLACEMENTS = [
    (r"\bhttps\b", "H T T P S"),
    (r"\bhttp\b", "H T T P"),
    (r"\bssh\b", "S S H"),
    (r"\bdns\b", "D N S"),
    (r"\bntp\b", "N T P"),
    (r"\bsnmp\b", "S N M P"),
    (r"\btcp\b", "T C P"),
    (r"\budp\b", "U D P"),
    (r"\bicmp\b", "I C M P"),
    (r"\bip\b", "I P"),
    (r"\bipv4\b", "I P v four"),
    (r"\bipv6\b", "I P v six"),
    (r"\btls\b", "T L S"),
    (r"\bssl\b", "S S L"),
    (r"\brdp\b", "R D P"),
    (r"\bsql\b", "sequel"),
    (r"\bapi\b", "A P I"),
    (r"\buid\b", "U I D"),
    (r"\bgpu\b", "G P U"),
    (r"\bcpu\b", "C P U"),
    (r"\bram\b", "R A M"),
    (r"\bttl\b", "T T L"),
    (r"\brtt\b", "R T T"),
    (r"\bbgp\b", "B G P"),
    (r"\bospf\b", "O S P F"),
    (r"\bospfv2\b", "O S P F v two"),
    (r"\bospfv3\b", "O S P F v three"),
    (r"\bis-is\b", "I S I S"),
    (r"\brip\b", "R I P"),
    (r"\bdhcp\b", "D H C P"),
    (r"\barp\b", "A R P"),
    (r"\bndp\b", "N D P"),
    (r"\bnat\b", "N A T"),
    (r"\bpat\b", "P A T"),
    (r"\bgre\b", "G R E"),
    (r"\bvrrp\b", "V R R P"),
    (r"\bhsrp\b", "H S R P"),
    (r"\bglbp\b", "G L B P"),
    (r"\bstp\b", "S T P"),
    (r"\brstp\b", "R S T P"),
    (r"\bmstp\b", "M S T P"),
    (r"\blldp\b", "L L D P"),
    (r"\bcdp\b", "C D P"),
    (r"\bldap\b", "ell dap"),
    (r"\bsaml\b", "sam el"),
    (r"\boauth\b", "oh auth"),
    (r"\boidc\b", "O I D C"),
    (r"\bsso\b", "S S O"),
    (r"\bsmtp\b", "S M T P"),
    (r"\bimap\b", "I M A P"),
    (r"\bpop3\b", "P O P three"),
    (r"\bpop\b", "P O P"),
    (r"\bftp\b", "F T P"),
    (r"\bsftp\b", "S F T P"),
    (r"\bftps\b", "F T P S"),
    (r"\btftp\b", "T F T P"),
    (r"\bmqtt\b", "M Q T T"),
    (r"\bamqp\b", "A M Q P"),
    (r"\bcoap\b", "C O A P"),
    (r"\bquic\b", "Q U I C"),
    (r"\bgrpc\b", "gee R P C"),
    (r"\bsoap\b", "S O A P"),
    (r"\bjson\b", "jay son"),
    (r"\byaml\b", "yam el"),
    (r"\bxml\b", "ex em el"),
    (r"\bwebsocket\b", "web socket"),
    (r"\bwss\b", "W S S"),
    (r"\bws\b", "W S"),
    (r"\bicmpv6\b", "I C M P v six"),
    (r"\bntlm\b", "N T L M"),
    (r"\bpki\b", "P K I"),
    (r"\bcsr\b", "C S R"),
    (r"\bcrt\b", "C R T"),
    (r"\bca\b", "C A"),
    (r"\bwan\b", "W A N"),
    (r"\blan\b", "L A N"),
    (r"\bvlan\b", "V L A N"),
    (r"\bvxlan\b", "V X L A N"),
    (r"\bqos\b", "Q O S"),
    (r"\bmtu\b", "M T U"),
    (r"\bpoe\b", "P O E"),
    (r"\bpoe\+", "P O E plus"),
    (r"\bvrf\b", "V R F"),
    (r"\bacl\b", "A C L"),
    (r"\bnat64\b", "N A T sixty four"),
    (r"\bdsr\b", "D S R"),
    (r"\bsiem\b", "S I E M"),
    (r"\bids\b", "I D S"),
    (r"\bips\b", "I P S"),
    (r"\bedr\b", "E D R"),
    (r"\bxdr\b", "X D R"),
    (r"\bsoc\b", "S O C"),
    (r"\bmdr\b", "M D R"),
    (r"\bndr\b", "N D R"),
    (r"\bav\b", "A V"),
    (r"\bendpoint\b", "end point"),
    (r"\bsaas\b", "S A A S"),
    (r"\biaas\b", "I A A S"),
    (r"\bpaas\b", "P A A S"),
    (r"\bdlp\b", "D L P"),
    (r"\bmfa\b", "M F A"),
    (r"\b2fa\b", "two F A"),
    (r"\b3fa\b", "three F A"),
    (r"\bmd5\b", "M D five"),
    (r"\bsha1\b", "sha one"),
    (r"\bsha256\b", "sha two five six"),
    (r"\bsha512\b", "sha five one two"),
    (r"\baes\b", "A E S"),
    (r"\baes-?gcm\b", "A E S G C M"),
    (r"\baes-?cbc\b", "A E S C B C"),
    (r"\brsa\b", "R S A"),
    (r"\becdsa\b", "E C D S A"),
    (r"\bed25519\b", "E D two five five one nine"),
    (r"\bjwt\b", "J W T"),
    (r"\bsshd\b", "S S H D"),
    (r"\bntp\d?\b", "N T P"),
    (r"\bntp\s+server\b", "N T P server"),
    (r"\bntp\s+pool\b", "N T P pool"),
    (r"\bhttpd\b", "H T T P D"),
    (r"\bnginx\b", "engine x"),
]

# Function to add ordinal suffix to a number
def add_ordinal_suffix(day):
    """Adds ordinal suffix to a day (e.g., 13 -> 13th)."""
    if 11 <= day <= 13:  # Special case for 11th, 12th, 13th
        return f"{day}th"
    elif day % 10 == 1:
        return f"{day}st"
    elif day % 10 == 2:
        return f"{day}nd"
    elif day % 10 == 3:
        return f"{day}rd"
    else:
        return f"{day}th"

# Function to format dates in a human-readable form
def format_date(parsed_date, include_time=True):
    """Formats a parsed date into a human-readable string."""
    if not parsed_date:
        return None

    # Convert the day into an ordinal (e.g., 13 -> 13th)
    day = add_ordinal_suffix(parsed_date.day)

    # Format the date in a TTS-friendly way
    if include_time and parsed_date.hour != 0 and parsed_date.minute != 0:
        return parsed_date.strftime(f"%B {day}, %Y at %-I:%M %p")  # Unix
    return parsed_date.strftime(f"%B {day}, %Y")  # Only date

# Normalize dates in the text
def normalize_dates(text):
    """
    Finds and replaces date strings with a nicely formatted, TTS-friendly version.
    """
    def replace_date(match):
        raw_date = match.group(0)
        try:
            parsed_date = parse(raw_date)
            if parsed_date:
                include_time = "T" in raw_date or " " in raw_date  # Include time only if explicitly provided
                return format_date(parsed_date, include_time)
        except ValueError:
            pass
        return raw_date

    # Match common date formats
    date_pattern = r"\b(\d{4}-\d{2}-\d{2}(?:[ T]\d{2}:\d{2}:\d{2})?|\d{2}/\d{2}/\d{4}|\d{1,2} \w+ \d{4})\b"
    return re.sub(date_pattern, replace_date, text)

# Replace invalid characters and clean text
def replace_invalid_chars(string):
    string = fix_text(string)
    replacements = {
        "**": "",
        '&#x27;': "'",
        'AI;': 'Artificial Intelligence!',
        'iddqd;': 'Immortality cheat code',
        '😉;': 'wink wink!',
        ':D': '*laughs* Ahahaha!',
        ';D': '*laughs* Ahahaha!'
    }
    for old, new in replacements.items():
        string = string.replace(old, new)
    return string

# Replace numbers with their word equivalents
def replace_numbers(string):
    ipv4_pattern = r'\b\d{1,3}(?:\.\d{1,3}){3}\b'
    ipv6_pattern = r'\b(?:[0-9a-fA-F]{1,4}:){2,7}[0-9a-fA-F]{1,4}\b'
    range_pattern = r'\b\d+-\d+\b'  # Detect ranges like 1-4
    date_pattern = r'\b\d{4}-\d{2}-\d{2}(?:T\d{2}:\d{2}:\d{2})?\b'
    alphanumeric_pattern = r'\b[A-Za-z]+\d+|\d+[A-Za-z]+\b'

    skip_spans = []
    for pattern in [ipv4_pattern, ipv6_pattern, range_pattern, date_pattern, alphanumeric_pattern]:
        for match in re.finditer(pattern, string):
            skip_spans.append((match.start(), match.end()))

    def is_skipped(start, end):
        return any(start >= s and end <= e for s, e in skip_spans)

    # Convert standalone numbers and port numbers
    def convert_number(match):
        number = match.group()
        if is_skipped(match.start(), match.end()):
            return number
        return num2words(int(number)).replace("-", " ") if number.isdigit() else number

    pattern = re.compile(r'\b\d+\b')
    return re.sub(pattern, convert_number, string)

# Replace abbreviations with expanded form
def replace_abbreviations(string):
    words = string.split()
    for i, word in enumerate(words):
        if word.isupper() and len(word) <= 4 and not any(char.isdigit() for char in word) and word not in ["ID", "AM", "PM"]:
            words[i] = ''.join([alphabet_map.get(char, char) for char in word])
    return ' '.join(words)

def clean_whitespace(string):
    # Remove spaces before punctuation
    string = re.sub(r'\s+([.,?!])', r'\1', string)
    # Collapse multiple spaces into one, but don’t touch inside tokens like "test.com"
    string = re.sub(r'\s{2,}', ' ', string)
    return string.strip()

def make_dots_tts_friendly(text):
    # Handle IP addresses (force "dot")
    ipv4_pattern = r'\b\d{1,3}(\.\d{1,3}){3}\b'
    text = re.sub(ipv4_pattern, lambda m: m.group(0).replace('.', ' dot '), text)

    # Handle domain-like endings (force "dot")
    domain_pattern = r'\b([\w-]+)\.(com|net|org|io|gov|edu|exe|dll|local)\b'
    text = re.sub(domain_pattern, lambda m: m.group(0).replace('.', ' dot '), text)

    # Handle decimals (use "point")
    decimal_pattern = r'\b\d+\.\d+\b'
    text = re.sub(decimal_pattern, lambda m: m.group(0).replace('.', ' point '), text)

    # Handle leading dot words (.Net → dot Net)
    text = re.sub(r'\.(?=\w)', 'dot ', text)

    return text

def apply_replacements(value, replacements):
    for pattern, replacement in replacements:
        value = re.sub(pattern, replacement, value, flags=re.IGNORECASE)
    return value

def tech_humanize(text):
    """
    Humanize technical tokens (URLs, emails, UUIDs, MACs, paths) for TTS.
    Keep outputs ASCII and TTS-friendly.
    """
    def spell_chars(token):
        return " ".join(list(token))

    def normalize_url(match):
        url = match.group(0)
        url = url.replace("https://", "HTTPS://").replace("http://", "HTTP://")
        url = url.replace("://", " colon slash slash ")
        url = url.replace("/", " forward slash ")
        url = url.replace("?", " question mark ")
        url = url.replace("&", " and ")
        url = url.replace("=", " equals ")
        url = url.replace("#", " hash ")
        url = url.replace("_", " underscore ")
        url = url.replace("-", " dash ")
        url = url.replace(".", " dot ")
        return url

    def normalize_email(match):
        email = match.group(0)
        email = email.replace("@", " at ")
        email = email.replace(".", " dot ")
        email = email.replace("_", " underscore ")
        email = email.replace("-", " dash ")
        return email

    def normalize_uuid(match):
        uuid_text = match.group(0)
        groups = uuid_text.split("-")
        spelled = [" ".join(list(group)) for group in groups]
        return " dash ".join(spelled)

    def normalize_mac(match):
        mac_text = match.group(0)
        groups = mac_text.split(":")
        spelled = [" ".join(list(group)) for group in groups]
        return " colon ".join(spelled)

    def normalize_ipv6(match):
        ipv6_text = match.group(0)
        groups = ipv6_text.split(":")
        spelled = [" ".join(list(group)) for group in groups if group]
        return " colon ".join(spelled)

    def normalize_ipv6_compact(match):
        ipv6_text = match.group(0)
        left, _, right = ipv6_text.partition("::")
        left_groups = [g for g in left.split(":") if g]
        right_groups = [g for g in right.split(":") if g]
        left_spelled = [" ".join(list(group)) for group in left_groups]
        right_spelled = [" ".join(list(group)) for group in right_groups]
        middle = " double colon "
        left_part = " colon ".join(left_spelled)
        right_part = " colon ".join(right_spelled)
        if left_part and right_part:
            return f"{left_part}{middle}{right_part}"
        if left_part:
            return f"{left_part}{middle}"
        return f"{middle}{right_part}"

    def normalize_mac_dash(match):
        mac_text = match.group(0)
        groups = mac_text.split("-")
        spelled = [" ".join(list(group)) for group in groups]
        return " dash ".join(spelled)

    def normalize_hex(match):
        hex_text = match.group(1)
        return "hex " + " ".join(list(hex_text))

    def normalize_cve(match):
        year = match.group(1)
        ident = match.group(2)
        return f"C V E {year} dash {ident}"

    # URLs and emails (do this early before protocol expansions)
    text = re.sub(r"\bhttps?://[^\s]+", normalize_url, text, flags=re.IGNORECASE)
    text = re.sub(r"\b[\w.+-]+@[\w.-]+\.\w+\b", normalize_email, text)

    # Version tokens like TLS1.3 or HTTP/2
    text = re.sub(r"\b(tls|ssl)\s*(\d+(?:\.\d+)?)\b", lambda m: f"{m.group(1).upper()} {m.group(2).replace('.', ' point ')}", text, flags=re.IGNORECASE)
    text = re.sub(r"\bhttps?/(\d+(?:\.\d+)?)\b", lambda m: f"H T T P slash {m.group(1).replace('.', ' point ')}", text, flags=re.IGNORECASE)

    # Common protocol tokens (force letter-by-letter)
    text = apply_replacements(text, TECH_ACRONYM_REPLACEMENTS)

    # Hex values and CVEs
    text = re.sub(r"\b0x([0-9A-Fa-f]+)\b", normalize_hex, text)
    text = re.sub(r"\bCVE-(\d{4})-(\d{4,7})\b", normalize_cve, text)

    # Interfaces like eth0, wlan0, en0, lo0
    text = re.sub(r"\b(eth|wlan|en|lo)(\d+)\b", lambda m: f"{m.group(1)} {m.group(2)}", text, flags=re.IGNORECASE)

    # UUIDs, MACs, IPv6
    text = re.sub(r"\b[0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{12}\b", normalize_uuid, text)
    text = re.sub(r"\b(?:[0-9A-Fa-f]{2}:){5}[0-9A-Fa-f]{2}\b", normalize_mac, text)
    text = re.sub(r"\b(?:[0-9A-Fa-f]{2}-){5}[0-9A-Fa-f]{2}\b", normalize_mac_dash, text)
    text = re.sub(r"\b(?:[0-9A-Fa-f]{1,4}:){2,7}[0-9A-Fa-f]{1,4}\b", normalize_ipv6, text)
    text = re.sub(r"\b[0-9A-Fa-f:]*::[0-9A-Fa-f:]*\b", normalize_ipv6_compact, text)

    # Acronym/acroynm like TCP/IP -> "TCP slash IP"
    text = re.sub(r"\b([A-Z]{2,})\s*/\s*([A-Z]{2,})\b", r"\1 slash \2", text)
    # Word/word patterns like this/that -> "this or that"
    text = re.sub(r"\b([A-Za-z]+)\s*/\s*([A-Za-z]+)\b", r"\1 or \2", text)

    # Common separators in paths/flags
    text = re.sub(r"(?<=\w)/(?!\s)", " forward slash ", text)
    text = re.sub(r"\\", " backslash ", text)
    text = re.sub(r"(?<=\w)-(?=\w)", " dash ", text)
    text = re.sub(r"(?<=\w)_(?=\w)", " underscore ", text)
    text = re.sub(r"(?<=\w):(?=\w)", " colon ", text)
    text = re.sub(r"--", " double dash ", text)
    text = re.sub(r"->", " arrow ", text)
    text = re.sub(r"=>", " arrow ", text)
    text = re.sub(r"\b(\d+)%\b", r"\1 percent", text)

    # Versions like v1.2.3 -> v 1 point 2 point 3
    text = re.sub(r"\bv(\d+(?:\.\d+)+)\b", lambda m: "v " + m.group(1).replace(".", " point "), text, flags=re.IGNORECASE)
    text = re.sub(r"\b(\d+\.\d+\.\d+)\b", lambda m: m.group(1).replace(".", " point "), text)

    # Units and rates
    text = re.sub(r"\b(\d+(?:\.\d+)?)\s*kbps\b", r"\1 kilobits per second", text, flags=re.IGNORECASE)
    text = re.sub(r"\b(\d+(?:\.\d+)?)\s*mbps\b", r"\1 megabits per second", text, flags=re.IGNORECASE)
    text = re.sub(r"\b(\d+(?:\.\d+)?)\s*gbps\b", r"\1 gigabits per second", text, flags=re.IGNORECASE)
    text = re.sub(r"\b(\d+(?:\.\d+)?)\s*tbps\b", r"\1 terabits per second", text, flags=re.IGNORECASE)
    text = re.sub(r"\b(\d+(?:\.\d+)?)\s*kb\b", r"\1 kilobytes", text, flags=re.IGNORECASE)
    text = re.sub(r"\b(\d+(?:\.\d+)?)\s*mb\b", r"\1 megabytes", text, flags=re.IGNORECASE)
    text = re.sub(r"\b(\d+(?:\.\d+)?)\s*gb\b", r"\1 gigabytes", text, flags=re.IGNORECASE)
    text = re.sub(r"\b(\d+(?:\.\d+)?)\s*tb\b", r"\1 terabytes", text, flags=re.IGNORECASE)
    text = re.sub(r"\b(\d+(?:\.\d+)?)\s*mhz\b", r"\1 mega hertz", text, flags=re.IGNORECASE)
    text = re.sub(r"\b(\d+(?:\.\d+)?)\s*ghz\b", r"\1 giga hertz", text, flags=re.IGNORECASE)
    text = re.sub(r"\b(\d+(?:\.\d+)?)\s*ms\b", r"\1 milliseconds", text, flags=re.IGNORECASE)
    text = re.sub(r"\b(\d+(?:\.\d+)?)\s*us\b", r"\1 microseconds", text, flags=re.IGNORECASE)
    text = re.sub(r"\b(\d+(?:\.\d+)?)\s*ns\b", r"\1 nanoseconds", text, flags=re.IGNORECASE)
    text = re.sub(r"\b(\d+(?:\.\d+)?)\s*s\b", r"\1 seconds", text)
    text = re.sub(r"\b(\d+(?:\.\d+)?)\s*min\b", r"\1 minutes", text, flags=re.IGNORECASE)

    # Optional plural markers like domain(s) -> "domain or domains"
    text = re.sub(r"\b([A-Za-z]+)\(s\)(?!\w)", r"\1 or \1s", text)

    return text

# Main preprocessing pipeline
def preprocess_all(string):
    string = normalize_dates(string)
    string = replace_invalid_chars(string)
    string = replace_numbers(string)
    string = tech_humanize(string)
    string = replace_abbreviations(string)
    string = make_dots_tts_friendly(string)
    string = clean_whitespace(string)
    return string

# Expose a testing function for external use
def test_preprocessing(file_path):
    with open(file_path, 'r') as file:
        lines = file.readlines()
    for line in lines:
        original = line.strip()
        processed = preprocess_all(original)
        print(f"Original: {original}")
        print(f"Processed: {processed}\n")

if __name__ == "__main__":
    import sys
    if len(sys.argv) > 1:
        test_file = sys.argv[1]
        test_preprocessing(test_file)
    else:
        print("Please provide a file path as an argument.")