#!/usr/bin/env python3

from pathlib import Path
import re
import sys
import yaml

INPUT_FILE = Path("domains.yaml")
OUTPUT_DIR = Path("bpm")
OUTPUT_FILE = OUTPUT_DIR / "Life-NOC.conf"
HOST_NAME = "life-noc"
TITLE = "Life-NOC"
OWNER = "icingadmin"


def slugify(value: str) -> str:
    value = value.strip().lower()
    replacements = {
        "à": "a", "â": "a", "ä": "a",
        "ç": "c",
        "é": "e", "è": "e", "ê": "e", "ë": "e",
        "î": "i", "ï": "i",
        "ô": "o", "ö": "o",
        "ù": "u", "û": "u", "ü": "u",
        "ÿ": "y",
        "œ": "oe",
        "æ": "ae",
        "'": "",
        "’": "",
    }
    for old, new in replacements.items():
        value = value.replace(old, new)
    value = re.sub(r"[^a-z0-9\-]+", "-", value)
    value = re.sub(r"-{2,}", "-", value)
    return value.strip("-")


def aliasify(value: str) -> str:
    value = value.strip().upper()
    replacements = {
        "À": "A", "Â": "A", "Ä": "A",
        "Ç": "C",
        "É": "E", "È": "E", "Ê": "E", "Ë": "E",
        "Î": "I", "Ï": "I",
        "Ô": "O", "Ö": "O",
        "Ù": "U", "Û": "U", "Ü": "U",
        "Ÿ": "Y",
        "Œ": "OE",
        "Æ": "AE",
        "'": "",
        "’": "",
    }
    for old, new in replacements.items():
        value = value.replace(old, new)
    value = re.sub(r"[^A-Z0-9\-]+", "-", value)
    value = re.sub(r"-{2,}", "-", value)
    return value.strip("-")


def header() -> str:
    return f"""### Business Process Config File ###
#
# Title           : {TITLE}
# Description     : 
# Owner           : {OWNER}
# AddToMenu       : yes
# Backend         : 
# Statetype       : soft
#
###################################

"""


def main() -> int:
    if not INPUT_FILE.exists():
        print(f"Erreur: fichier introuvable: {INPUT_FILE}", file=sys.stderr)
        return 1

    with INPUT_FILE.open("r", encoding="utf-8") as f:
        data = yaml.safe_load(f)

    if not isinstance(data, dict) or "domains" not in data:
        print("Erreur: le YAML doit contenir une clé racine 'domains'.", file=sys.stderr)
        return 1

    domains = data["domains"]
    if not isinstance(domains, dict):
        print("Erreur: 'domains' doit être un objet YAML.", file=sys.stderr)
        return 1

    OUTPUT_DIR.mkdir(parents=True, exist_ok=True)

    lines = [header()]
    aliases = []

    for raw_domain, items in domains.items():
        if not isinstance(items, list):
            print(f"Erreur: le domaine '{raw_domain}' doit contenir une liste.", file=sys.stderr)
            return 1

        domain_slug = slugify(str(raw_domain))
        domain_alias = aliasify(str(raw_domain))

        services = []
        for idx, item in enumerate(items, start=1):
            if not isinstance(item, dict):
                print(f"Erreur: entrée invalide dans '{raw_domain}' à la position {idx}.", file=sys.stderr)
                return 1

            if "name" not in item:
                print(f"Erreur: dans le domaine '{raw_domain}', entrée {idx}, champ manquant: name", file=sys.stderr)
                return 1

            item_name = slugify(str(item["name"]))
            services.append(f"{HOST_NAME};{domain_slug}-{item_name}")

        if not services:
            print(f"Erreur: le domaine '{raw_domain}' ne contient aucun item.", file=sys.stderr)
            return 1

        expr = " & ".join(services)
        lines.append(f"{domain_alias} = {expr}\n")
        aliases.append((domain_alias, str(raw_domain).upper()))

    lines.append("\n")
    for alias, label in aliases:
        lines.append(f"display 1;{alias};{label}\n")

    OUTPUT_FILE.write_text("".join(lines), encoding="utf-8")

    print(f"BPM généré: {OUTPUT_FILE}")
    print("Processus générés :")
    print("  - LIFE-NOC")
    for alias, _label in aliases:
        print(f"  - {alias}")

    return 0


if __name__ == "__main__":
    raise SystemExit(main())