# app/modules/analytics/schemas/stats.py
"""
Analytics module schemas for statistics and reporting.

Base dashboard schemas are defined in app.modules.core.schemas.dashboard.
Import them from there directly. This module contains only
analytics-specific schemas (trends, reports, etc.).
"""

from datetime import datetime
from decimal import Decimal
from typing import Any

from pydantic import BaseModel, Field

# ============================================================================
# Store Analytics (Analytics-specific, not in core)
# ============================================================================


class StoreAnalyticsImports(BaseModel):
    """Store import analytics."""

    count: int = Field(0, description="Number of imports in period")


class StoreAnalyticsCatalog(BaseModel):
    """Store catalog analytics."""

    products_added: int = Field(0, description="Products added in period")


class StoreAnalyticsInventory(BaseModel):
    """Store inventory analytics."""

    total_locations: int = Field(0, description="Total inventory locations")


class StoreAnalyticsResponse(BaseModel):
    """Store analytics response schema.

    Used by: GET /api/v1/store/analytics
    """

    period: str = Field(..., description="Analytics period (e.g., '30d')")
    start_date: str = Field(..., description="Period start date")
    imports: StoreAnalyticsImports
    catalog: StoreAnalyticsCatalog
    inventory: StoreAnalyticsInventory


# ============================================================================
# Code Quality Dashboard Statistics
# ============================================================================


class ValidatorStats(BaseModel):
    """Statistics for a single validator type."""

    total_violations: int = 0
    errors: int = 0
    warnings: int = 0
    last_scan: str | None = None


class CodeQualityDashboardStatsResponse(BaseModel):
    """Code quality dashboard statistics response schema.

    Used by: GET /api/v1/admin/code-quality/stats

    Supports multiple validator types: architecture, security, performance.
    When validator_type is specified, returns stats for that type only.
    When not specified, returns combined stats with per-validator breakdown.
    """

    total_violations: int
    errors: int
    warnings: int
    info: int = 0
    open: int
    assigned: int
    resolved: int
    ignored: int
    technical_debt_score: int
    trend: list[dict[str, Any]] = Field(default_factory=list)
    by_severity: dict[str, Any] = Field(default_factory=dict)
    by_rule: dict[str, Any] = Field(default_factory=dict)
    by_module: dict[str, Any] = Field(default_factory=dict)
    top_files: list[dict[str, Any]] = Field(default_factory=list)
    last_scan: str | None = None
    validator_type: str | None = None  # Set when filtering by type
    by_validator: dict[str, ValidatorStats] = Field(
        default_factory=dict,
        description="Per-validator breakdown (architecture, security, performance)",
    )


# ============================================================================
# Customer Statistics (Coming Soon)
# ============================================================================


class CustomerStatsResponse(BaseModel):
    """Schema for customer statistics."""

    customer_id: int
    total_orders: int
    total_spent: Decimal
    average_order_value: Decimal
    last_order_date: datetime | None
    first_order_date: datetime | None
    lifetime_value: Decimal


# ============================================================================
# Order Statistics (Coming Soon)
# ============================================================================


class OrderStatsResponse(BaseModel):
    """Schema for order statistics."""

    total_orders: int
    pending_orders: int
    processing_orders: int
    shipped_orders: int
    delivered_orders: int
    cancelled_orders: int
    total_revenue: Decimal
    average_order_value: Decimal


__all__ = [
    # Analytics-specific schemas
    "StoreAnalyticsImports",
    "StoreAnalyticsCatalog",
    "StoreAnalyticsInventory",
    "StoreAnalyticsResponse",
    "ValidatorStats",
    "CodeQualityDashboardStatsResponse",
    "CustomerStatsResponse",
    "OrderStatsResponse",
]