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

Provides models for:
- VendorLetzshopCredentials: Per-vendor API key storage (encrypted)
- LetzshopFulfillmentQueue: Outbound operation queue with retry
- LetzshopSyncLog: Audit trail for sync operations
- LetzshopHistoricalImportJob: Progress tracking for historical imports

Note: Orders are now stored in the unified `orders` table with channel='letzshop'.
The LetzshopOrder model has been removed in favor of the unified Order model.
"""

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)

    # Test mode (disables API mutations when enabled)
    test_mode_enabled = Column(Boolean, default=False)

    # Default carrier settings
    default_carrier = Column(String(50), nullable=True)  # greco, colissimo, xpresslogistics

    # Carrier label URL prefixes
    carrier_greco_label_url = Column(
        String(500), default="https://dispatchweb.fr/Tracky/Home/"
    )
    carrier_colissimo_label_url = Column(String(500), nullable=True)
    carrier_xpresslogistics_label_url = Column(String(500), nullable=True)

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

    Supports retry logic for failed operations.
    References the unified orders table.
    """

    __tablename__ = "letzshop_fulfillment_queue"

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

    # Operation type
    operation = Column(
        String(50), nullable=False
    )  # confirm_item, decline_item, set_tracking

    # 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")
    order = relationship("Order")

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

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


class LetzshopVendorCache(Base, TimestampMixin):
    """
    Cache of Letzshop marketplace vendor directory.

    This table stores vendor data fetched from Letzshop's public GraphQL API,
    allowing users to browse and claim existing Letzshop shops during signup.

    Data is periodically synced from Letzshop (e.g., daily via Celery task).
    """

    __tablename__ = "letzshop_vendor_cache"

    id = Column(Integer, primary_key=True, index=True)

    # Letzshop identifiers
    letzshop_id = Column(String(50), unique=True, nullable=False, index=True)
    """Unique ID from Letzshop (e.g., 'lpkedYMRup')."""

    slug = Column(String(200), unique=True, nullable=False, index=True)
    """URL slug (e.g., 'nicks-diecast-corner')."""

    # Basic info
    name = Column(String(255), nullable=False)
    """Vendor display name."""

    company_name = Column(String(255), nullable=True)
    """Legal company name."""

    is_active = Column(Boolean, default=True)
    """Whether vendor is active on Letzshop."""

    # Descriptions (multilingual)
    description_en = Column(Text, nullable=True)
    description_fr = Column(Text, nullable=True)
    description_de = Column(Text, nullable=True)

    # Contact information
    email = Column(String(255), nullable=True)
    phone = Column(String(50), nullable=True)
    fax = Column(String(50), nullable=True)
    website = Column(String(500), nullable=True)

    # Location
    street = Column(String(255), nullable=True)
    street_number = Column(String(50), nullable=True)
    city = Column(String(100), nullable=True)
    zipcode = Column(String(20), nullable=True)
    country_iso = Column(String(5), default="LU")
    latitude = Column(String(20), nullable=True)
    longitude = Column(String(20), nullable=True)

    # Categories (stored as JSON array of names)
    categories = Column(JSON, default=list)
    """List of category names, e.g., ['Fashion', 'Shoes']."""

    # Images
    background_image_url = Column(String(500), nullable=True)

    # Social media (stored as JSON array of URLs)
    social_media_links = Column(JSON, default=list)
    """List of social media URLs."""

    # Opening hours (multilingual text)
    opening_hours_en = Column(Text, nullable=True)
    opening_hours_fr = Column(Text, nullable=True)
    opening_hours_de = Column(Text, nullable=True)

    # Representative
    representative_name = Column(String(255), nullable=True)
    representative_title = Column(String(100), nullable=True)

    # Claiming status (linked to our platform)
    claimed_by_vendor_id = Column(
        Integer, ForeignKey("vendors.id"), nullable=True, index=True
    )
    """If claimed, links to our Vendor record."""

    claimed_at = Column(DateTime(timezone=True), nullable=True)
    """When the vendor was claimed on our platform."""

    # Sync metadata
    last_synced_at = Column(DateTime(timezone=True), nullable=False)
    """When this record was last updated from Letzshop."""

    raw_data = Column(JSON, nullable=True)
    """Full raw response from Letzshop API for reference."""

    # Relationship to claimed vendor
    claimed_vendor = relationship("Vendor", foreign_keys=[claimed_by_vendor_id])

    __table_args__ = (
        Index("idx_vendor_cache_city", "city"),
        Index("idx_vendor_cache_claimed", "claimed_by_vendor_id"),
        Index("idx_vendor_cache_active", "is_active"),
    )

    def __repr__(self):
        return f"<LetzshopVendorCache(id={self.id}, slug='{self.slug}', name='{self.name}')>"

    @property
    def is_claimed(self) -> bool:
        """Check if this vendor has been claimed on our platform."""
        return self.claimed_by_vendor_id is not None

    @property
    def letzshop_url(self) -> str:
        """Get the Letzshop profile URL."""
        return f"https://letzshop.lu/vendors/{self.slug}"

    def get_description(self, lang: str = "en") -> str | None:
        """Get description in specified language with fallback."""
        descriptions = {
            "en": self.description_en,
            "fr": self.description_fr,
            "de": self.description_de,
        }
        # Try requested language, then fallback order
        for try_lang in [lang, "en", "fr", "de"]:
            if descriptions.get(try_lang):
                return descriptions[try_lang]
        return None

    def get_opening_hours(self, lang: str = "en") -> str | None:
        """Get opening hours in specified language with fallback."""
        hours = {
            "en": self.opening_hours_en,
            "fr": self.opening_hours_fr,
            "de": self.opening_hours_de,
        }
        for try_lang in [lang, "en", "fr", "de"]:
            if hours.get(try_lang):
                return hours[try_lang]
        return None

    def get_full_address(self) -> str | None:
        """Get formatted full address."""
        parts = []
        if self.street:
            addr = self.street
            if self.street_number:
                addr += f" {self.street_number}"
            parts.append(addr)
        if self.zipcode or self.city:
            parts.append(f"{self.zipcode or ''} {self.city or ''}".strip())
        return ", ".join(parts) if parts else None


class LetzshopHistoricalImportJob(Base, TimestampMixin):
    """
    Track progress of historical order imports from Letzshop.

    Enables real-time progress tracking via polling for long-running imports.
    """

    __tablename__ = "letzshop_historical_import_jobs"

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

    # Status: pending | fetching | processing | completed | failed
    status = Column(String(50), default="pending", nullable=False)

    # Current phase: "confirmed" | "declined"
    current_phase = Column(String(20), nullable=True)

    # Fetch progress
    current_page = Column(Integer, default=0)
    total_pages = Column(Integer, nullable=True)  # null = unknown yet
    shipments_fetched = Column(Integer, default=0)

    # Processing progress
    orders_processed = Column(Integer, default=0)
    orders_imported = Column(Integer, default=0)
    orders_updated = Column(Integer, default=0)
    orders_skipped = Column(Integer, default=0)

    # EAN matching stats
    products_matched = Column(Integer, default=0)
    products_not_found = Column(Integer, default=0)

    # Phase-specific stats (stored as JSON for combining confirmed + declined)
    confirmed_stats = Column(JSON, nullable=True)
    declined_stats = Column(JSON, nullable=True)

    # Error handling
    error_message = Column(Text, nullable=True)

    # Celery task tracking (optional - for USE_CELERY=true)
    celery_task_id = Column(String(255), nullable=True, index=True)

    # Timing
    started_at = Column(DateTime(timezone=True), nullable=True)
    completed_at = Column(DateTime(timezone=True), nullable=True)

    # Relationships
    vendor = relationship("Vendor")
    user = relationship("User")

    __table_args__ = (
        Index("idx_historical_import_vendor", "vendor_id", "status"),
    )

    def __repr__(self):
        return f"<LetzshopHistoricalImportJob(id={self.id}, status='{self.status}', phase='{self.current_phase}')>"