# models/database/letzshop.py
"""
Database models for Letzshop marketplace integration.

Provides models for:
- VendorLetzshopCredentials: Per-vendor API key storage (encrypted)
- LetzshopOrder: External order tracking and mapping
- LetzshopFulfillmentQueue: Outbound operation queue with retry
- LetzshopSyncLog: Audit trail for sync operations
"""

from sqlalchemy import (
    Boolean,
    Column,
    DateTime,
    ForeignKey,
    Index,
    Integer,
    String,
    Text,
)
from sqlalchemy.dialects.sqlite import JSON
from sqlalchemy.orm import relationship

from app.core.database import Base
from models.database.base import TimestampMixin


class VendorLetzshopCredentials(Base, TimestampMixin):
    """
    Per-vendor Letzshop API credentials.

    Stores encrypted API keys and sync settings for each vendor's
    Letzshop integration.
    """

    __tablename__ = "vendor_letzshop_credentials"

    id = Column(Integer, primary_key=True, index=True)
    vendor_id = Column(
        Integer, ForeignKey("vendors.id"), unique=True, nullable=False, index=True
    )

    # Encrypted API credentials
    api_key_encrypted = Column(Text, nullable=False)
    api_endpoint = Column(String(255), default="https://letzshop.lu/graphql")

    # Sync settings
    auto_sync_enabled = Column(Boolean, default=False)
    sync_interval_minutes = Column(Integer, default=15)

    # Last sync status
    last_sync_at = Column(DateTime(timezone=True), nullable=True)
    last_sync_status = Column(String(50), nullable=True)  # success, failed, partial
    last_sync_error = Column(Text, nullable=True)

    # Relationships
    vendor = relationship("Vendor", back_populates="letzshop_credentials")

    def __repr__(self):
        return f"<VendorLetzshopCredentials(vendor_id={self.vendor_id}, auto_sync={self.auto_sync_enabled})>"


class LetzshopOrder(Base, TimestampMixin):
    """
    Letzshop order tracking and mapping.

    Stores imported orders from Letzshop with mapping to local Order model.
    """

    __tablename__ = "letzshop_orders"

    id = Column(Integer, primary_key=True, index=True)
    vendor_id = Column(Integer, ForeignKey("vendors.id"), nullable=False, index=True)

    # Letzshop identifiers
    letzshop_order_id = Column(String(100), nullable=False, index=True)
    letzshop_shipment_id = Column(String(100), nullable=True, index=True)
    letzshop_order_number = Column(String(100), nullable=True)

    # Local order mapping (if imported to local system)
    local_order_id = Column(Integer, ForeignKey("orders.id"), nullable=True)

    # Order state from Letzshop
    letzshop_state = Column(String(50), nullable=True)  # unconfirmed, confirmed, etc.

    # Customer info from Letzshop
    customer_email = Column(String(255), nullable=True)
    customer_name = Column(String(255), nullable=True)

    # Order totals from Letzshop
    total_amount = Column(
        String(50), nullable=True
    )  # Store as string to preserve format
    currency = Column(String(10), default="EUR")

    # Raw data storage (for debugging/auditing)
    raw_order_data = Column(JSON, nullable=True)

    # Inventory units (from Letzshop)
    inventory_units = Column(JSON, nullable=True)  # List of inventory unit IDs

    # Sync status
    sync_status = Column(
        String(50), default="pending"
    )  # pending, imported, confirmed, rejected, shipped
    last_synced_at = Column(DateTime(timezone=True), nullable=True)
    sync_error = Column(Text, nullable=True)

    # Fulfillment status
    confirmed_at = Column(DateTime(timezone=True), nullable=True)
    rejected_at = Column(DateTime(timezone=True), nullable=True)
    tracking_set_at = Column(DateTime(timezone=True), nullable=True)
    tracking_number = Column(String(100), nullable=True)
    tracking_carrier = Column(String(100), nullable=True)

    # Relationships
    vendor = relationship("Vendor")
    local_order = relationship("Order")

    __table_args__ = (
        Index("idx_letzshop_order_vendor", "vendor_id", "letzshop_order_id"),
        Index("idx_letzshop_order_state", "vendor_id", "letzshop_state"),
        Index("idx_letzshop_order_sync", "vendor_id", "sync_status"),
    )

    def __repr__(self):
        return f"<LetzshopOrder(id={self.id}, letzshop_id='{self.letzshop_order_id}', state='{self.letzshop_state}')>"


class LetzshopFulfillmentQueue(Base, TimestampMixin):
    """
    Queue for outbound fulfillment operations to Letzshop.

    Supports retry logic for failed operations.
    """

    __tablename__ = "letzshop_fulfillment_queue"

    id = Column(Integer, primary_key=True, index=True)
    vendor_id = Column(Integer, ForeignKey("vendors.id"), nullable=False, index=True)
    letzshop_order_id = Column(
        Integer, ForeignKey("letzshop_orders.id"), nullable=False
    )

    # Operation type
    operation = Column(
        String(50), nullable=False
    )  # confirm, reject, set_tracking, return

    # Operation payload
    payload = Column(JSON, nullable=False)

    # Status and retry
    status = Column(
        String(50), default="pending"
    )  # pending, processing, completed, failed
    attempts = Column(Integer, default=0)
    max_attempts = Column(Integer, default=3)
    last_attempt_at = Column(DateTime(timezone=True), nullable=True)
    next_retry_at = Column(DateTime(timezone=True), nullable=True)
    error_message = Column(Text, nullable=True)
    completed_at = Column(DateTime(timezone=True), nullable=True)

    # Response from Letzshop
    response_data = Column(JSON, nullable=True)

    # Relationships
    vendor = relationship("Vendor")
    letzshop_order = relationship("LetzshopOrder")

    __table_args__ = (
        Index("idx_fulfillment_queue_status", "status", "vendor_id"),
        Index("idx_fulfillment_queue_retry", "status", "next_retry_at"),
    )

    def __repr__(self):
        return f"<LetzshopFulfillmentQueue(id={self.id}, operation='{self.operation}', status='{self.status}')>"


class LetzshopSyncLog(Base, TimestampMixin):
    """
    Audit log for all Letzshop sync operations.
    """

    __tablename__ = "letzshop_sync_logs"

    id = Column(Integer, primary_key=True, index=True)
    vendor_id = Column(Integer, ForeignKey("vendors.id"), nullable=False, index=True)

    # Operation details
    operation_type = Column(
        String(50), nullable=False
    )  # order_import, confirm_inventory, set_tracking, etc.
    direction = Column(String(10), nullable=False)  # inbound, outbound

    # Status
    status = Column(String(50), nullable=False)  # success, failed, partial

    # Details
    records_processed = Column(Integer, default=0)
    records_succeeded = Column(Integer, default=0)
    records_failed = Column(Integer, default=0)
    error_details = Column(JSON, nullable=True)

    # Timestamps
    started_at = Column(DateTime(timezone=True), nullable=False)
    completed_at = Column(DateTime(timezone=True), nullable=True)
    duration_seconds = Column(Integer, nullable=True)

    # Triggered by
    triggered_by = Column(String(100), nullable=True)  # user_id, scheduler, webhook

    # Relationships
    vendor = relationship("Vendor")

    __table_args__ = (
        Index("idx_sync_log_vendor_type", "vendor_id", "operation_type"),
        Index("idx_sync_log_vendor_date", "vendor_id", "started_at"),
    )

    def __repr__(self):
        return f"<LetzshopSyncLog(id={self.id}, type='{self.operation_type}', status='{self.status}')>"