"""Report domain models — the unified output of a face-intelligence job."""

from __future__ import annotations

import uuid
from datetime import datetime, timezone
from typing import Any, Dict, List, Optional

from pydantic import BaseModel, Field


class Evidence(BaseModel):
    """Preserved raw provider output — never discarded.

    Every result from every provider is preserved as Evidence, regardless
    of success.  This is the foundation of evidence-first design.
    """
    provider: str
    capability: str
    timestamp: datetime = Field(default_factory=lambda: datetime.now(timezone.utc))
    raw: Any = None                      # verbatim provider response
    normalized: dict = Field(default_factory=dict)
    elapsed_ms: float = 0.0
    success: bool = True
    error: Optional[str] = None
    error_type: Optional[str] = None
    metadata: dict = Field(default_factory=dict)
    retry_count: int = 0
    limitations: List[str] = Field(default_factory=list)


class ConfidenceScore(BaseModel):
    """Explainable confidence — decomposed into weighted sub-scores."""
    overall: float                        # 0.0 – 1.0
    components: Dict[str, float] = Field(default_factory=dict)
    explanation: str = ""
    method: str = "weighted_average"


class FaceDetection(BaseModel):
    """One detected face, with cross-provider consensus."""
    box: Dict[str, int]                   # {x, y, w, h}
    confidence: ConfidenceScore
    landmarks: Optional[Dict[str, List[int]]] = None
    detected_by: List[str] = Field(default_factory=list)
    embedding: Optional[List[float]] = None
    embedding_provider: Optional[str] = None


class FaceMatch(BaseModel):
    """A recognition match against the reference gallery."""
    query_face_index: int
    best_match: Optional[str] = None
    confidence: ConfidenceScore
    distances: Dict[str, float] = Field(default_factory=dict)


class ImageAnalysisResult(BaseModel):
    """Output of an image-analysis provider (quality, properties, features)."""
    provider: str
    quality_score: Optional[float] = None
    brightness: Optional[float] = None
    contrast: Optional[float] = None
    sharpness: Optional[float] = None
    noise_level: Optional[float] = None
    width: Optional[int] = None
    height: Optional[int] = None
    channels: Optional[int] = None
    color_profile: Optional[str] = None
    dominant_colors: List[str] = Field(default_factory=list)
    aspects: dict = Field(default_factory=dict)
    confidence: Optional[ConfidenceScore] = None


class MetadataResult(BaseModel):
    """Output of a metadata-extraction provider (EXIF, XMP, IPTC)."""
    provider: str
    format: Optional[str] = None
    exif: dict = Field(default_factory=dict)
    xmp: dict = Field(default_factory=dict)
    iptc: dict = Field(default_factory=dict)
    gps: Optional[dict] = None
    camera_make: Optional[str] = None
    camera_model: Optional[str] = None
    software: Optional[str] = None
    capture_time: Optional[str] = None
    confidence: Optional[ConfidenceScore] = None


class ForensicsResult(BaseModel):
    """Output of a forensics provider (integrity, duplicates, manipulation)."""
    provider: str
    integrity_score: Optional[float] = None
    is_duplicate: Optional[bool] = None
    duplicate_of: Optional[str] = None
    similarity_score: Optional[float] = None
    manipulation_indicators: List[str] = Field(default_factory=list)
    ela_score: Optional[float] = None     # error-level analysis
    noise_inconsistency: Optional[float] = None
    details: dict = Field(default_factory=dict)
    confidence: Optional[ConfidenceScore] = None


class OCRResult(BaseModel):
    """Output of an OCR provider."""
    provider: str
    text_blocks: List[dict] = Field(default_factory=list)
    full_text: str = ""
    language: Optional[str] = None
    confidence: Optional[ConfidenceScore] = None


class ObjectDetectionResult(BaseModel):
    """Output of an object-detection provider."""
    provider: str
    objects: List[dict] = Field(default_factory=list)
    model: Optional[str] = None
    confidence: Optional[ConfidenceScore] = None


class SceneResult(BaseModel):
    """Output of a scene-classification provider."""
    provider: str
    labels: List[dict] = Field(default_factory=list)
    confidence: Optional[ConfidenceScore] = None


class NSFWResult(BaseModel):
    """Output of an NSFW-detection provider."""
    provider: str
    is_nsfw: bool = False
    labels: List[str] = Field(default_factory=list)
    confidence: Optional[ConfidenceScore] = None


class AIDetectionResult(BaseModel):
    """Output of an AI-generated-image-detection provider."""
    provider: str
    is_ai_generated: bool = False
    confidence: Optional[ConfidenceScore] = None


class EmbeddingResult(BaseModel):
    """Output of an embedding provider."""
    provider: str
    embedding: List[float] = Field(default_factory=list)
    model: Optional[str] = None
    dimensions: int = 0


# --------------------------------------------------------------------------- #
# OSINT models (Phase 10-15)
# --------------------------------------------------------------------------- #
class OSINTMatch(BaseModel):
    """One merged reverse-image-search match with source classification."""
    image_url: str = ""
    source_page: str = ""
    title: str = ""
    snippet: str = ""
    thumbnail: str = ""
    source_type: str = "unknown"
    platform: Optional[str] = None
    root_domain: str = ""
    is_cdn: bool = False
    confidence: float = 0.0
    first_seen: Optional[str] = None
    found_by: List[str] = Field(default_factory=list)


class OSINTResult(BaseModel):
    """Output of the OSINT reverse-search orchestrator."""
    providers_invoked: List[str] = Field(default_factory=list)
    providers_succeeded: List[str] = Field(default_factory=list)
    providers_failed: List[str] = Field(default_factory=list)
    total_matches: int = 0
    matches: List[OSINTMatch] = Field(default_factory=list)
    source_type_breakdown: dict = Field(default_factory=dict)
    elapsed_ms: float = 0.0


class FaceQualityMetrics(BaseModel):
    """Quality metrics for a single detected face."""
    quality_score: float = 0.0
    blur_score: float = 0.0
    is_blurry: bool = False
    face_size: int = 0           # width * height of bbox
    face_size_label: str = ""    # "small" | "medium" | "large"
    pose_yaw: float = 0.0        # degrees; 0 = frontal
    pose_pitch: float = 0.0
    pose_roll: float = 0.0
    pose_label: str = ""         # "frontal" | "profile" | "extreme"
    orientation: str = ""        # "upright" | "tilted" | "rotated"
    is_best_face: bool = False


class FaceCluster(BaseModel):
    """A cluster of faces that appear to be the same person."""
    cluster_id: int
    face_indices: List[int] = Field(default_factory=list)
    representative_index: int = 0
    num_faces: int = 0
    avg_similarity: float = 0.0


class FaceIntelligenceResult(BaseModel):
    """Output of the face intelligence service."""
    total_faces: int = 0
    best_face_index: Optional[int] = None
    quality_metrics: List[FaceQualityMetrics] = Field(default_factory=list)
    clusters: List[FaceCluster] = Field(default_factory=list)
    duplicate_face_indices: List[int] = Field(default_factory=list)
    elapsed_ms: float = 0.0


class ForensicMetadataReport(BaseModel):
    """Forensic metadata intelligence — expanded EXIF/XMP/IPTC/ICC."""
    provider: str = "forensic_metadata"
    format: Optional[str] = None
    exif: dict = Field(default_factory=dict)
    xmp: dict = Field(default_factory=dict)
    iptc: dict = Field(default_factory=dict)
    icc_profile: Optional[dict] = None
    gps: Optional[dict] = None
    camera_make: Optional[str] = None
    camera_model: Optional[str] = None
    lens_model: Optional[str] = None
    software: Optional[str] = None
    capture_time: Optional[str] = None
    capture_time_iso: Optional[str] = None
    timezone_estimate: Optional[str] = None
    editing_history: List[str] = Field(default_factory=list)
    thumbnail_extracted: bool = False
    embedded_preview: bool = False
    camera_fingerprint: Optional[str] = None   # hash of camera-specific noise pattern
    compression_analysis: Optional[dict] = None
    confidence: Optional[ConfidenceScore] = None


class DetectedObjectIntelligence(BaseModel):
    """One detected object with intelligence metadata."""
    class_label: str
    confidence: float = 0.0
    box: dict = Field(default_factory=dict)
    crop_base64: Optional[str] = None
    is_vehicle: bool = False
    is_screen: bool = False
    is_document: bool = False
    is_phone: bool = False
    is_laptop: bool = False
    is_watch: bool = False
    is_logo: bool = False
    is_text_region: bool = False
    is_license_plate: bool = False
    is_qr_code: bool = False
    is_barcode: bool = False
    searchable_metadata: dict = Field(default_factory=dict)


class ObjectIntelligenceResult(BaseModel):
    """Output of the object intelligence service."""
    total_objects: int = 0
    objects: List[DetectedObjectIntelligence] = Field(default_factory=list)
    vehicles: List[DetectedObjectIntelligence] = Field(default_factory=list)
    license_plates: List[DetectedObjectIntelligence] = Field(default_factory=list)
    qr_codes: List[DetectedObjectIntelligence] = Field(default_factory=list)
    barcodes: List[DetectedObjectIntelligence] = Field(default_factory=list)
    documents: List[DetectedObjectIntelligence] = Field(default_factory=list)
    screens: List[DetectedObjectIntelligence] = Field(default_factory=list)
    phones: List[DetectedObjectIntelligence] = Field(default_factory=list)
    laptops: List[DetectedObjectIntelligence] = Field(default_factory=list)
    watches: List[DetectedObjectIntelligence] = Field(default_factory=list)
    logos: List[DetectedObjectIntelligence] = Field(default_factory=list)
    text_regions: List[DetectedObjectIntelligence] = Field(default_factory=list)
    elapsed_ms: float = 0.0


class LocationEvidence(BaseModel):
    """One piece of evidence for a location estimate."""
    source: str = ""             # "gps" | "ocr" | "language" | "scene" | "license_plate" | "logo"
    value: str = ""
    confidence: float = 0.0
    details: dict = Field(default_factory=dict)


class LocationEstimate(BaseModel):
    """Output of the location intelligence service."""
    candidate_countries: List[dict] = Field(default_factory=list)  # [{"country": "France", "confidence": 0.8}]
    candidate_cities: List[dict] = Field(default_factory=list)
    gps: Optional[dict] = None
    evidence: List[LocationEvidence] = Field(default_factory=list)
    conflicting_evidence: List[str] = Field(default_factory=list)
    overall_confidence: float = 0.0
    elapsed_ms: float = 0.0


class CorrelationNode(BaseModel):
    """A node in the correlation graph."""
    id: str
    node_type: str        # "face" | "object" | "location" | "metadata" | "image" | "embedding"
    label: str = ""
    properties: dict = Field(default_factory=dict)


class CorrelationEdge(BaseModel):
    """An edge in the correlation graph — a deterministic relationship."""
    source: str
    target: str
    edge_type: str        # "same_face" | "same_object" | "same_location" | "same_camera" | "same_hash" | "same_embedding" | "same_metadata" | "same_timestamp"
    confidence: float = 1.0
    evidence: str = ""


class CorrelationGraph(BaseModel):
    """Output of the correlation engine."""
    nodes: List[CorrelationNode] = Field(default_factory=list)
    edges: List[CorrelationEdge] = Field(default_factory=list)
    num_nodes: int = 0
    num_edges: int = 0
    elapsed_ms: float = 0.0


class ConflictReport(BaseModel):
    """Cross-provider disagreement."""
    kind: str                             # e.g. "face_count_mismatch"
    providers: List[str]
    description: str
    severity: str = "info"                # info | warning | error


class ReportMetadata(BaseModel):
    """Job/report metadata."""
    job_id: str = Field(default_factory=lambda: str(uuid.uuid4()))
    created_at: datetime = Field(default_factory=lambda: datetime.now(timezone.utc))
    image_hash: Optional[str] = None
    total_elapsed_ms: float = 0.0
    providers_invoked: List[str] = Field(default_factory=list)
    providers_succeeded: List[str] = Field(default_factory=list)
    providers_failed: List[str] = Field(default_factory=list)
    limitations: List[str] = Field(default_factory=list)


class UnifiedFaceReport(BaseModel):
    """The final unified report consumed by API + UI."""
    metadata: ReportMetadata
    detections: List[FaceDetection] = Field(default_factory=list)
    matches: List[FaceMatch] = Field(default_factory=list)
    scraped_images: List[dict] = Field(default_factory=list)
    reverse_matches: List[dict] = Field(default_factory=list)
    image_analyses: List[ImageAnalysisResult] = Field(default_factory=list)
    metadata_extractions: List[MetadataResult] = Field(default_factory=list)
    forensics: List[ForensicsResult] = Field(default_factory=list)
    ocr_results: List[OCRResult] = Field(default_factory=list)
    object_detections: List[ObjectDetectionResult] = Field(default_factory=list)
    scene_results: List[SceneResult] = Field(default_factory=list)
    nsfw_results: List[NSFWResult] = Field(default_factory=list)
    ai_detection_results: List[AIDetectionResult] = Field(default_factory=list)
    embedding_results: List[EmbeddingResult] = Field(default_factory=list)
    # OSINT (Phase 10-15)
    osint: Optional[OSINTResult] = None
    face_intelligence: Optional[FaceIntelligenceResult] = None
    forensic_metadata: Optional[ForensicMetadataReport] = None
    object_intelligence: Optional[ObjectIntelligenceResult] = None
    location_estimate: Optional[LocationEstimate] = None
    correlation_graph: Optional[CorrelationGraph] = None
    evidence: List[Evidence] = Field(default_factory=list)
    conflicts: List[ConflictReport] = Field(default_factory=list)
    overall_confidence: Optional[ConfidenceScore] = None