"""Tracking & proof of delivery — Phase 10.7."""
from __future__ import annotations

import uuid
from datetime import datetime

from sqlalchemy import DateTime, Float, Index, String, Text, UniqueConstraint
from sqlalchemy.orm import Mapped, mapped_column
from sqlalchemy.types import JSON

from app.core.database import Base
from app.models.base import (
    ActorAuditMixin,
    OptimisticLockMixin,
    SoftDeleteMixin,
    TenantMixin,
    TimestampMixin,
    UUIDPrimaryKeyMixin,
)
from app.models.types import (
    CustomerTrackingTokenStatus,
    GUID,
    ProofOfDeliveryStatus,
    TrackingSessionStatus,
)


class TrackingSession(
    Base,
    UUIDPrimaryKeyMixin,
    TenantMixin,
    TimestampMixin,
    SoftDeleteMixin,
    ActorAuditMixin,
    OptimisticLockMixin,
):
    __tablename__ = "tracking_sessions"

    dispatch_job_id: Mapped[uuid.UUID | None] = mapped_column(GUID(), nullable=True)
    driver_id: Mapped[uuid.UUID | None] = mapped_column(GUID(), nullable=True)
    status: Mapped[TrackingSessionStatus] = mapped_column(
        default=TrackingSessionStatus.ACTIVE, nullable=False
    )
    started_at: Mapped[datetime | None] = mapped_column(
        DateTime(timezone=True), nullable=True
    )
    ended_at: Mapped[datetime | None] = mapped_column(
        DateTime(timezone=True), nullable=True
    )
    metadata_json: Mapped[dict | None] = mapped_column(JSON, nullable=True)

    __table_args__ = (
        Index("ix_tracking_sessions_tenant_status", "tenant_id", "status"),
        Index("ix_tracking_sessions_job", "tenant_id", "dispatch_job_id"),
        Index("ix_tracking_sessions_tenant_deleted", "tenant_id", "is_deleted"),
    )


class TrackingPoint(
    Base,
    UUIDPrimaryKeyMixin,
    TenantMixin,
    TimestampMixin,
):
    __tablename__ = "tracking_points"

    tracking_session_id: Mapped[uuid.UUID] = mapped_column(GUID(), nullable=False)
    latitude: Mapped[float] = mapped_column(Float, nullable=False)
    longitude: Mapped[float] = mapped_column(Float, nullable=False)
    recorded_at: Mapped[datetime] = mapped_column(
        DateTime(timezone=True), nullable=False
    )
    metadata_json: Mapped[dict | None] = mapped_column(JSON, nullable=True)

    __table_args__ = (
        Index("ix_tracking_points_session", "tenant_id", "tracking_session_id"),
        Index("ix_tracking_points_recorded", "tenant_id", "recorded_at"),
    )


class ProofOfDelivery(
    Base,
    UUIDPrimaryKeyMixin,
    TenantMixin,
    TimestampMixin,
    SoftDeleteMixin,
    ActorAuditMixin,
    OptimisticLockMixin,
):
    """Storage file refs for POD only — no blob ownership."""

    __tablename__ = "proof_of_delivery"

    dispatch_job_id: Mapped[uuid.UUID] = mapped_column(GUID(), nullable=False)
    status: Mapped[ProofOfDeliveryStatus] = mapped_column(
        default=ProofOfDeliveryStatus.PENDING, nullable=False
    )
    signature_file_ref: Mapped[str | None] = mapped_column(String(255), nullable=True)
    photo_file_ref: Mapped[str | None] = mapped_column(String(255), nullable=True)
    delivery_code: Mapped[str | None] = mapped_column(String(50), nullable=True)
    notes: Mapped[str | None] = mapped_column(Text, nullable=True)
    captured_at: Mapped[datetime | None] = mapped_column(
        DateTime(timezone=True), nullable=True
    )
    metadata_json: Mapped[dict | None] = mapped_column(JSON, nullable=True)

    __table_args__ = (
        Index("ix_proof_of_delivery_job", "tenant_id", "dispatch_job_id"),
        Index("ix_proof_of_delivery_tenant_status", "tenant_id", "status"),
        Index("ix_proof_of_delivery_tenant_deleted", "tenant_id", "is_deleted"),
    )


class CustomerTrackingToken(
    Base,
    UUIDPrimaryKeyMixin,
    TenantMixin,
    TimestampMixin,
    SoftDeleteMixin,
    ActorAuditMixin,
):
    __tablename__ = "customer_tracking_tokens"

    dispatch_job_id: Mapped[uuid.UUID] = mapped_column(GUID(), nullable=False)
    token: Mapped[str] = mapped_column(String(128), nullable=False)
    status: Mapped[CustomerTrackingTokenStatus] = mapped_column(
        default=CustomerTrackingTokenStatus.ACTIVE, nullable=False
    )
    expires_at: Mapped[datetime | None] = mapped_column(
        DateTime(timezone=True), nullable=True
    )
    metadata_json: Mapped[dict | None] = mapped_column(JSON, nullable=True)

    __table_args__ = (
        UniqueConstraint("tenant_id", "token", name="uq_customer_tracking_tokens_token"),
        Index("ix_customer_tracking_tokens_job", "tenant_id", "dispatch_job_id"),
        Index("ix_customer_tracking_tokens_tenant_status", "tenant_id", "status"),
    )