"""
Pipeline de vérifications et contrôles métier
"""
import os
import logging
from typing import Dict, Any, List

logger = logging.getLogger(__name__)

def run(doc_id: str, ctx: dict):
    """
    Vérifications et contrôles métier
    """
    logger.info(f"Vérifications du document {doc_id}")

    try:
        # Récupération des données
        classification = ctx.get("classification", {})
        extracted_data = ctx.get("extracted_data", {})
        ocr_meta = ctx.get("ocr_meta", {})

        # Liste des vérifications
        checks_results = []

        # Vérification de la qualité OCR
        ocr_check = _check_ocr_quality(ocr_meta)
        checks_results.append(ocr_check)

        # Vérification de la classification
        classification_check = _check_classification(classification)
        checks_results.append(classification_check)

        # Vérifications spécifiques au type de document
        type_checks = _check_document_type(classification.get("label", ""), extracted_data)
        checks_results.extend(type_checks)

        # Vérification de la cohérence des données
        consistency_check = _check_data_consistency(extracted_data)
        checks_results.append(consistency_check)

        # Détermination du statut final
        overall_status = _determine_overall_status(checks_results)

        # Stockage des résultats
        ctx["checks_results"] = checks_results
        ctx["overall_status"] = overall_status

        # Métadonnées de vérification
        checks_meta = {
            "checks_completed": True,
            "total_checks": len(checks_results),
            "passed_checks": sum(1 for check in checks_results if check["status"] == "passed"),
            "failed_checks": sum(1 for check in checks_results if check["status"] == "failed"),
            "warnings": sum(1 for check in checks_results if check["status"] == "warning"),
            "overall_status": overall_status
        }

        ctx["checks_meta"] = checks_meta

        logger.info(f"Vérifications terminées pour le document {doc_id}: {overall_status}")

    except Exception as e:
        logger.error(f"Erreur lors des vérifications du document {doc_id}: {e}")
        raise

def _check_ocr_quality(ocr_meta: Dict[str, Any]) -> Dict[str, Any]:
    """
    Vérification de la qualité OCR
    """
    confidence = ocr_meta.get("confidence", 0.0)
    text_length = ocr_meta.get("text_length", 0)

    if confidence >= 0.8:
        status = "passed"
        message = f"Qualité OCR excellente (confiance: {confidence:.2f})"
    elif confidence >= 0.6:
        status = "warning"
        message = f"Qualité OCR acceptable (confiance: {confidence:.2f})"
    else:
        status = "failed"
        message = f"Qualité OCR insuffisante (confiance: {confidence:.2f})"

    if text_length < 100:
        status = "failed"
        message += " - Texte trop court"

    return {
        "check_name": "ocr_quality",
        "status": status,
        "message": message,
        "details": {
            "confidence": confidence,
            "text_length": text_length
        }
    }

def _check_classification(classification: Dict[str, Any]) -> Dict[str, Any]:
    """
    Vérification de la classification
    """
    confidence = classification.get("confidence", 0.0)
    label = classification.get("label", "document_inconnu")

    if confidence >= 0.8:
        status = "passed"
        message = f"Classification fiable ({label}, confiance: {confidence:.2f})"
    elif confidence >= 0.6:
        status = "warning"
        message = f"Classification incertaine ({label}, confiance: {confidence:.2f})"
    else:
        status = "failed"
        message = f"Classification non fiable ({label}, confiance: {confidence:.2f})"

    if label == "document_inconnu":
        status = "warning"
        message = "Type de document non identifié"

    return {
        "check_name": "classification",
        "status": status,
        "message": message,
        "details": {
            "label": label,
            "confidence": confidence
        }
    }

def _check_document_type(document_type: str, extracted_data: Dict[str, Any]) -> List[Dict[str, Any]]:
    """
    Vérifications spécifiques au type de document
    """
    checks = []

    if document_type == "acte_vente":
        checks.extend(_check_vente_requirements(extracted_data))
    elif document_type == "acte_achat":
        checks.extend(_check_achat_requirements(extracted_data))
    elif document_type == "donation":
        checks.extend(_check_donation_requirements(extracted_data))
    elif document_type == "testament":
        checks.extend(_check_testament_requirements(extracted_data))
    elif document_type == "succession":
        checks.extend(_check_succession_requirements(extracted_data))

    return checks

def _check_vente_requirements(data: Dict[str, Any]) -> List[Dict[str, Any]]:
    """
    Vérifications pour un acte de vente
    """
    checks = []

    # Vérification des champs obligatoires
    required_fields = ["vendeur", "acheteur", "prix", "bien"]

    for field in required_fields:
        if not data.get(field):
            checks.append({
                "check_name": f"vente_{field}_present",
                "status": "failed",
                "message": f"Champ obligatoire manquant: {field}",
                "details": {"field": field}
            })
        else:
            checks.append({
                "check_name": f"vente_{field}_present",
                "status": "passed",
                "message": f"Champ {field} présent",
                "details": {"field": field, "value": data[field]}
            })

    # Vérification du prix
    prix = data.get("prix", "")
    if prix and not _is_valid_amount(prix):
        checks.append({
            "check_name": "vente_prix_format",
            "status": "warning",
            "message": f"Format de prix suspect: {prix}",
            "details": {"prix": prix}
        })

    return checks

def _check_achat_requirements(data: Dict[str, Any]) -> List[Dict[str, Any]]:
    """
    Vérifications pour un acte d'achat
    """
    checks = []

    # Vérification des champs obligatoires
    required_fields = ["vendeur", "acheteur", "prix", "bien"]

    for field in required_fields:
        if not data.get(field):
            checks.append({
                "check_name": f"achat_{field}_present",
                "status": "failed",
                "message": f"Champ obligatoire manquant: {field}",
                "details": {"field": field}
            })
        else:
            checks.append({
                "check_name": f"achat_{field}_present",
                "status": "passed",
                "message": f"Champ {field} présent",
                "details": {"field": field, "value": data[field]}
            })

    return checks

def _check_donation_requirements(data: Dict[str, Any]) -> List[Dict[str, Any]]:
    """
    Vérifications pour une donation
    """
    checks = []

    # Vérification des champs obligatoires
    required_fields = ["donateur", "donataire", "bien_donne"]

    for field in required_fields:
        if not data.get(field):
            checks.append({
                "check_name": f"donation_{field}_present",
                "status": "failed",
                "message": f"Champ obligatoire manquant: {field}",
                "details": {"field": field}
            })
        else:
            checks.append({
                "check_name": f"donation_{field}_present",
                "status": "passed",
                "message": f"Champ {field} présent",
                "details": {"field": field, "value": data[field]}
            })

    return checks

def _check_testament_requirements(data: Dict[str, Any]) -> List[Dict[str, Any]]:
    """
    Vérifications pour un testament
    """
    checks = []

    # Vérification des champs obligatoires
    required_fields = ["testateur"]

    for field in required_fields:
        if not data.get(field):
            checks.append({
                "check_name": f"testament_{field}_present",
                "status": "failed",
                "message": f"Champ obligatoire manquant: {field}",
                "details": {"field": field}
            })
        else:
            checks.append({
                "check_name": f"testament_{field}_present",
                "status": "passed",
                "message": f"Champ {field} présent",
                "details": {"field": field, "value": data[field]}
            })

    return checks

def _check_succession_requirements(data: Dict[str, Any]) -> List[Dict[str, Any]]:
    """
    Vérifications pour une succession
    """
    checks = []

    # Vérification des champs obligatoires
    required_fields = ["defunt"]

    for field in required_fields:
        if not data.get(field):
            checks.append({
                "check_name": f"succession_{field}_present",
                "status": "failed",
                "message": f"Champ obligatoire manquant: {field}",
                "details": {"field": field}
            })
        else:
            checks.append({
                "check_name": f"succession_{field}_present",
                "status": "passed",
                "message": f"Champ {field} présent",
                "details": {"field": field, "value": data[field]}
            })

    return checks

def _check_data_consistency(data: Dict[str, Any]) -> Dict[str, Any]:
    """
    Vérification de la cohérence des données
    """
    issues = []

    # Vérification des dates
    dates = data.get("dates", [])
    for date in dates:
        if not _is_valid_date(date):
            issues.append(f"Date invalide: {date}")

    # Vérification des montants
    montants = data.get("montants", [])
    for montant in montants:
        if not _is_valid_amount(montant):
            issues.append(f"Montant invalide: {montant}")

    if issues:
        return {
            "check_name": "data_consistency",
            "status": "warning",
            "message": f"Cohérence des données: {len(issues)} problème(s) détecté(s)",
            "details": {"issues": issues}
        }
    else:
        return {
            "check_name": "data_consistency",
            "status": "passed",
            "message": "Données cohérentes",
            "details": {}
        }

def _determine_overall_status(checks_results: List[Dict[str, Any]]) -> str:
    """
    Détermination du statut global
    """
    failed_checks = sum(1 for check in checks_results if check["status"] == "failed")
    warning_checks = sum(1 for check in checks_results if check["status"] == "warning")

    if failed_checks > 0:
        return "manual_review"
    elif warning_checks > 2:
        return "manual_review"
    else:
        return "completed"

def _is_valid_date(date_str: str) -> bool:
    """
    Validation d'une date
    """
    import re
    # Format DD/MM/YYYY ou DD-MM-YYYY
    pattern = r'^\d{1,2}[/-]\d{1,2}[/-]\d{2,4}$'
    return bool(re.match(pattern, date_str))

def _is_valid_amount(amount_str: str) -> bool:
    """
    Validation d'un montant
    """
    import re
    # Format avec euros
    pattern = r'^\d{1,3}(?:\s\d{3})*(?:[.,]\d{2})?\s*€?$'
    return bool(re.match(pattern, amount_str))