"""
Control and ControlMapping Pydantic schemas — extracted from compliance/api/schemas.py.

Phase 1 Step 3: the monolithic ``compliance.api.schemas`` module is being
split per domain under ``compliance.schemas``. This module is re-exported
from ``compliance.api.schemas`` for backwards compatibility.
"""

from datetime import datetime, date
from typing import Optional, List, Any, Dict

from pydantic import BaseModel, ConfigDict, Field

from compliance.schemas.common import (
    PaginationMeta, RegulationType, ControlType, ControlDomain,
    ControlStatus, RiskLevel, EvidenceStatus,
)


# ============================================================================
# Control Schemas
# ============================================================================

class ControlBase(BaseModel):
    control_id: str
    domain: str
    control_type: str
    title: str
    description: Optional[str] = None
    pass_criteria: str
    implementation_guidance: Optional[str] = None
    code_reference: Optional[str] = None
    documentation_url: Optional[str] = None
    is_automated: bool = False
    automation_tool: Optional[str] = None
    automation_config: Optional[Dict[str, Any]] = None
    owner: Optional[str] = None
    review_frequency_days: int = 90


class ControlCreate(ControlBase):
    pass


class ControlUpdate(BaseModel):
    title: Optional[str] = None
    description: Optional[str] = None
    pass_criteria: Optional[str] = None
    implementation_guidance: Optional[str] = None
    code_reference: Optional[str] = None
    documentation_url: Optional[str] = None
    is_automated: Optional[bool] = None
    automation_tool: Optional[str] = None
    automation_config: Optional[Dict[str, Any]] = None
    owner: Optional[str] = None
    status: Optional[str] = None
    status_notes: Optional[str] = None


class ControlResponse(ControlBase):
    id: str
    status: str
    status_notes: Optional[str] = None
    last_reviewed_at: Optional[datetime] = None
    next_review_at: Optional[datetime] = None
    created_at: datetime
    updated_at: datetime
    evidence_count: Optional[int] = None
    requirement_count: Optional[int] = None

    model_config = ConfigDict(from_attributes=True)


class ControlListResponse(BaseModel):
    controls: List[ControlResponse]
    total: int


class PaginatedControlResponse(BaseModel):
    """Paginated response for controls - optimized for large datasets."""
    data: List[ControlResponse]
    pagination: PaginationMeta


class ControlReviewRequest(BaseModel):
    status: str
    status_notes: Optional[str] = None


# ============================================================================
# Control Mapping Schemas
# ============================================================================

class MappingBase(BaseModel):
    requirement_id: str
    control_id: str
    coverage_level: str = "full"
    notes: Optional[str] = None


class MappingCreate(MappingBase):
    pass


class MappingResponse(MappingBase):
    id: str
    requirement_article: Optional[str] = None
    requirement_title: Optional[str] = None
    control_control_id: Optional[str] = None
    control_title: Optional[str] = None
    created_at: datetime

    model_config = ConfigDict(from_attributes=True)


class MappingListResponse(BaseModel):
    mappings: List[MappingResponse]
    total: int