"""
User Preferences Model
Stores user-specific UI preferences, favorites, theme, and settings
"""
from sqlalchemy import Column, String, Boolean, Integer, Float, ForeignKey, ARRAY, Text
from sqlalchemy.dialects.postgresql import UUID, JSONB
from app.models.base import BaseModel


class UserPreference(BaseModel):
    """
    User Preferences model - One row per user
    Stores UI preferences, favorites, theme, and settings
    """
    __tablename__ = "user_preferences"
    
    # Link to user
    user_id = Column(UUID(as_uuid=True), ForeignKey('users.id', ondelete='CASCADE'), nullable=False, unique=True)
    
    # Favorite Apps (for 9-dot app launcher)
    # Array of app codes that appear in the top navigation bar
    # Max: 6 favorites (enforced in application logic)
    favorite_apps = Column(ARRAY(Text), default=['dashboard', 'tickets', 'projects', 'maps'])
    
    # UI Preferences
    theme = Column(String(50), default='dark')  # 'light', 'dark', 'auto'
    language = Column(String(10), default='en')  # 'en', 'sw' (Swahili), 'fr', etc.
    
    # Notification Preferences
    email_notifications = Column(Boolean, default=True)
    push_notifications = Column(Boolean, default=True)
    sms_notifications = Column(Boolean, default=False)
    
    # Dashboard Layout (which widgets to show)
    # Array of widget codes: ['recent_tickets', 'team_performance', 'sla_metrics', 'map_view']
    dashboard_widgets = Column(ARRAY(Text), default=['recent_tickets', 'team_performance', 'sla_metrics'])
    
    # Table/List Preferences
    default_tickets_view = Column(String(50), default='list')  # 'list', 'kanban', 'calendar'
    tickets_per_page = Column(Integer, default=25)  # Pagination size
    default_sort_field = Column(String(100), default='created_at')  # Default sort field
    default_sort_order = Column(String(10), default='desc')  # 'asc', 'desc'
    
    # Map Preferences (for field agents and dispatchers)
    default_map_zoom = Column(Integer, default=12)
    default_map_center_lat = Column(Float, nullable=True)  # User's preferred map center
    default_map_center_lng = Column(Float, nullable=True)
    
    # Project Context (for multi-project users)
    last_active_project_id = Column(UUID(as_uuid=True), ForeignKey('projects.id', ondelete='SET NULL'), nullable=True)
    
    # Additional settings (flexible JSONB for future expansion)
    # Can store: sidebar_collapsed, compact_mode, color_blind_mode, etc.
    additional_settings = Column(JSONB, default={})
    
    def __repr__(self):
        return f"<UserPreference(user_id='{self.user_id}', theme='{self.theme}')>"