"""Dataclasses du Validator — Verdict, FailureCategory, ValidationResult.

Cf. SPEC_VALIDATOR_MATRICE.md §1 et AXE_B2_DEEP_VALIDATOR.md §3.1.
"""
from __future__ import annotations

from dataclasses import dataclass, field
from enum import Enum
from typing import Any, Dict, Optional


class Verdict(str, Enum):
    """Trois verdicts possibles (calque Skyvern complete/terminate/continue)."""
    COMPLETE = "complete"      # l'action a eu l'effet voulu
    CONTINUE = "continue"      # effet pas encore visible → recheck/wait
    TERMINATE = "terminate"    # échec irrécupérable → pause supervisée


class FailureCategory(str, Enum):
    """Classification des échecs (restreinte au contexte rpa_vision_v3)."""
    WRONG_TARGET = "wrong_target"
    WRONG_APPLICATION = "wrong_application"  # bug step 10 (clic hors-app)
    NO_VISUAL_CHANGE = "no_visual_change"
    UNEXPECTED_DIALOG = "unexpected_dialog"
    OCR_TEXT_MISSING = "ocr_text_missing"
    SCHEMA_INVALID = "schema_invalid"
    UI_LOADING = "ui_loading"
    UNKNOWN = "unknown"


@dataclass
class ValidationResult:
    """Résultat d'un check. Toujours sérialisable JSON."""
    verdict: Verdict
    confidence: float
    check_used: str
    elapsed_ms: float
    reasoning: str = ""
    failure_category: Optional[FailureCategory] = None
    raw_evidence: Dict[str, Any] = field(default_factory=dict)

    def to_dict(self) -> Dict[str, Any]:
        return {
            "verdict": self.verdict.value,
            "confidence": round(self.confidence, 3),
            "check_used": self.check_used,
            "elapsed_ms": round(self.elapsed_ms, 1),
            "reasoning": self.reasoning,
            "failure_category": (
                self.failure_category.value if self.failure_category else None
            ),
            "raw_evidence": self.raw_evidence,
        }