"""Read-model for the Regulatory Map (step 4).

A customer-readable view that COMPOSES what the engine already computed (scope +
obligations + overlaps). It adds no scope/obligation logic. All fields are
application-level presentation types — NOT compliance-meta-model classes
(architecture freeze v1.0 untouched).
"""

from __future__ import annotations

from typing import Dict, List

from pydantic import BaseModel, Field

from compliance.product_scope.schemas import UnsupportedDomain
from compliance.profile.canonical import CanonicalProductRegulatoryProfile
from compliance.reasoning.enums import AuthorityLevel, Confidence


class RegulatoryMapRequest(BaseModel):
    product_profile: CanonicalProductRegulatoryProfile


class ObligationRef(BaseModel):
    obligation_id: str
    title: str
    legal_basis_refs: List[str] = Field(default_factory=list)
    authority_level: AuthorityLevel


class ApplicableRegulationView(BaseModel):
    regulation_id: str
    name: str
    why_applicable: str
    triggered_by: List[str] = Field(default_factory=list)
    obligations: List[ObligationRef] = Field(default_factory=list)
    obligations_note: str = ""  # set when obligations are not yet registry-linkable
    confidence: Confidence


class UncertainRegulationView(BaseModel):
    regulation_id: str
    name: str
    missing_facts: List[str] = Field(default_factory=list)
    question_refs: List[str] = Field(default_factory=list)


class ExcludedRegulationView(BaseModel):
    regulation_id: str
    name: str
    exclusion_reason: str


class OverlapView(BaseModel):
    overlap_group_id: str
    shared_obligations: List[str] = Field(default_factory=list)
    explanation: str = ""


class RegulatoryMap(BaseModel):
    scope_resolved: bool
    product_summary: str
    trigger_facts: List[str] = Field(default_factory=list)
    applicable_regulations: List[ApplicableRegulationView] = Field(default_factory=list)
    uncertain_regulations: List[UncertainRegulationView] = Field(default_factory=list)
    excluded_regulations: List[ExcludedRegulationView] = Field(default_factory=list)
    unsupported_domains: List[UnsupportedDomain] = Field(default_factory=list)
    overlaps: List[OverlapView] = Field(default_factory=list)
    shared_evidence: Dict[str, List[str]] = Field(default_factory=dict)
    executive_summary: str = ""