"""Analytics aggregates — Phase 11.10.

Report definitions describe which local metric keys to compute; snapshots
store point-in-time metrics payloads from simple local SQL counts only.
"""
from __future__ import annotations

import uuid

from sqlalchemy import Index, String, 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 AnalyticsReportStatus, AnalyticsSnapshotStatus, GUID


class ExperienceAnalyticsReportDefinition(
    Base,
    UUIDPrimaryKeyMixin,
    TenantMixin,
    TimestampMixin,
    SoftDeleteMixin,
    ActorAuditMixin,
    OptimisticLockMixin,
):
    __tablename__ = "experience_analytics_report_definitions"

    workspace_id: Mapped[uuid.UUID] = mapped_column(GUID(), nullable=False)
    site_id: Mapped[uuid.UUID | None] = mapped_column(GUID(), nullable=True)
    code: Mapped[str] = mapped_column(String(50), nullable=False)
    name: Mapped[str] = mapped_column(String(255), nullable=False)
    metric_keys: Mapped[list] = mapped_column(JSON, nullable=False)
    filters: Mapped[dict | None] = mapped_column(JSON, nullable=True)
    status: Mapped[AnalyticsReportStatus] = mapped_column(
        default=AnalyticsReportStatus.DRAFT, nullable=False
    )
    metadata_json: Mapped[dict | None] = mapped_column(JSON, nullable=True)

    __table_args__ = (
        UniqueConstraint(
            "tenant_id",
            "code",
            name="uq_experience_analytics_report_definitions_tenant_code",
        ),
        Index(
            "ix_experience_analytics_report_definitions_workspace",
            "tenant_id",
            "workspace_id",
        ),
        Index(
            "ix_experience_analytics_report_definitions_status",
            "tenant_id",
            "status",
        ),
        Index(
            "ix_experience_analytics_report_definitions_tenant_deleted",
            "tenant_id",
            "is_deleted",
        ),
    )


class ExperienceAnalyticsSnapshot(
    Base,
    UUIDPrimaryKeyMixin,
    TenantMixin,
    TimestampMixin,
    SoftDeleteMixin,
    ActorAuditMixin,
    OptimisticLockMixin,
):
    __tablename__ = "experience_analytics_snapshots"

    report_id: Mapped[uuid.UUID] = mapped_column(GUID(), nullable=False)
    workspace_id: Mapped[uuid.UUID | None] = mapped_column(GUID(), nullable=True)
    site_id: Mapped[uuid.UUID | None] = mapped_column(GUID(), nullable=True)
    period_start: Mapped[str | None] = mapped_column(String(32), nullable=True)
    period_end: Mapped[str | None] = mapped_column(String(32), nullable=True)
    metrics: Mapped[dict] = mapped_column(JSON, nullable=False)
    status: Mapped[AnalyticsSnapshotStatus] = mapped_column(
        default=AnalyticsSnapshotStatus.ACTIVE, nullable=False
    )

    __table_args__ = (
        Index(
            "ix_experience_analytics_snapshots_report",
            "tenant_id",
            "report_id",
        ),
        Index(
            "ix_experience_analytics_snapshots_workspace",
            "tenant_id",
            "workspace_id",
        ),
        Index(
            "ix_experience_analytics_snapshots_tenant_deleted",
            "tenant_id",
            "is_deleted",
        ),
    )