"""
Game objects: Items, Encounters, Locations
"""

from datetime import datetime
from typing import Optional, List, Dict, Any
from enum import Enum
from pydantic import BaseModel, Field


# ==================== ITEMS ====================

class ItemRarity(str, Enum):
    """D&D item rarity"""
    COMMON = "Common"
    UNCOMMON = "Uncommon"
    RARE = "Rare"
    VERY_RARE = "Very Rare"
    LEGENDARY = "Legendary"
    ARTIFACT = "Artifact"


class ItemType(str, Enum):
    """Item categories"""
    WEAPON = "Weapon"
    ARMOR = "Armor"
    POTION = "Potion"
    SCROLL = "Scroll"
    WAND = "Wand"
    RING = "Ring"
    WONDROUS = "Wondrous Item"
    TOOL = "Tool"
    TREASURE = "Treasure"
    CONSUMABLE = "Consumable"


class Item(BaseModel):
    """Magic items and equipment"""
    id: Optional[str] = Field(default=None)
    name: str = Field(min_length=1, max_length=100)
    item_type: ItemType
    rarity: ItemRarity = Field(default=ItemRarity.COMMON)

    description: str = Field(description="Item description")
    properties: List[str] = Field(default_factory=list, description="Magical properties")

    requires_attunement: bool = Field(default=False)
    attunement_requirements: Optional[str] = Field(default=None)

    value_gp: int = Field(ge=0, default=0, description="Value in gold pieces")
    weight_lbs: float = Field(ge=0, default=0, description="Weight in pounds")

    charges: Optional[int] = Field(default=None, description="Current charges")
    max_charges: Optional[int] = Field(default=None, description="Maximum charges")

    flavor_text: str = Field(default="", description="Flavor/lore text")
    history: str = Field(default="", description="Item history")

    campaign_id: Optional[str] = Field(default=None)
    owner_id: Optional[str] = Field(default=None, description="Current owner")

    created_at: datetime = Field(default_factory=datetime.now)


# ==================== ENCOUNTERS ====================

class EncounterDifficulty(str, Enum):
    """Encounter difficulty"""
    EASY = "Easy"
    MEDIUM = "Medium"
    HARD = "Hard"
    DEADLY = "Deadly"


class EncounterType(str, Enum):
    """Type of encounter"""
    COMBAT = "Combat"
    SOCIAL = "Social"
    EXPLORATION = "Exploration"
    PUZZLE = "Puzzle"
    TRAP = "Trap"
    MIXED = "Mixed"


class Encounter(BaseModel):
    """Combat/challenge encounter"""
    id: Optional[str] = Field(default=None)
    name: str = Field(min_length=1, max_length=100)
    encounter_type: EncounterType
    difficulty: EncounterDifficulty

    party_level: int = Field(ge=1, le=20, description="Expected party level")
    party_size: int = Field(ge=1, le=10, default=4, description="Expected party size")

    description: str = Field(description="Encounter description")
    setup: str = Field(default="", description="How to set up the encounter")

    # Combat specific
    enemies: List[Dict[str, Any]] = Field(default_factory=list, description="Enemy creatures")
    enemy_tactics: str = Field(default="", description="How enemies fight")

    # Environment
    location: str = Field(default="", description="Where encounter takes place")
    terrain_features: List[str] = Field(default_factory=list, description="Terrain elements")
    environmental_effects: List[str] = Field(default_factory=list, description="Environmental hazards/effects")

    # Rewards
    experience_reward: int = Field(ge=0, default=0)
    treasure: List[str] = Field(default_factory=list, description="Treasure rewards")

    # Alternatives
    alternative_solutions: List[str] = Field(default_factory=list, description="Non-combat solutions")
    scaling_suggestions: str = Field(default="", description="How to scale difficulty")

    # Metadata
    campaign_id: Optional[str] = Field(default=None)
    session_number: Optional[int] = Field(default=None)
    completed: bool = Field(default=False)

    notes: str = Field(default="", description="GM notes")
    created_at: datetime = Field(default_factory=datetime.now)


# ==================== LOCATIONS ====================

class LocationType(str, Enum):
    """Location categories"""
    CITY = "City"
    TOWN = "Town"
    VILLAGE = "Village"
    DUNGEON = "Dungeon"
    WILDERNESS = "Wilderness"
    CASTLE = "Castle"
    TEMPLE = "Temple"
    TAVERN = "Tavern"
    SHOP = "Shop"
    RUINS = "Ruins"
    CAVE = "Cave"
    FOREST = "Forest"
    MOUNTAIN = "Mountain"
    COAST = "Coast"
    PLANE = "Plane"


class Location(BaseModel):
    """Places in the campaign world"""
    id: Optional[str] = Field(default=None)
    name: str = Field(min_length=1, max_length=100)
    location_type: LocationType

    description: str = Field(description="Location description")
    atmosphere: str = Field(default="", description="Mood/feeling of the place")

    # Geography
    region: Optional[str] = Field(default=None, description="Larger region")
    parent_location: Optional[str] = Field(default=None, description="Contains this location")
    sub_locations: List[str] = Field(default_factory=list, description="Locations within this one")

    # Details
    population: Optional[int] = Field(default=None)
    government: Optional[str] = Field(default=None)
    notable_features: List[str] = Field(default_factory=list)
    points_of_interest: List[str] = Field(default_factory=list)

    # NPCs & Factions
    notable_npcs: List[str] = Field(default_factory=list, description="NPC IDs")
    controlling_faction: Optional[str] = Field(default=None)

    # Resources
    available_services: List[str] = Field(default_factory=list, description="Services available")
    shops: List[str] = Field(default_factory=list, description="Shops/merchants")

    # Secrets & hooks
    secrets: List[str] = Field(default_factory=list, description="Hidden information")
    rumors: List[str] = Field(default_factory=list, description="Local rumors")
    plot_hooks: List[str] = Field(default_factory=list, description="Adventure hooks")

    # Map
    map_description: str = Field(default="", description="Layout/map description")
    connected_locations: List[str] = Field(default_factory=list, description="Connected locations")
    travel_times: Dict[str, str] = Field(default_factory=dict, description="Travel times to other locations")

    # Metadata
    campaign_id: Optional[str] = Field(default=None)
    visited: bool = Field(default=False)
    first_visit_session: Optional[int] = Field(default=None)

    notes: str = Field(default="", description="GM notes")
    created_at: datetime = Field(default_factory=datetime.now)

    def mark_visited(self, session_number: int):
        """Mark location as visited"""
        if not self.visited:
            self.visited = True
            self.first_visit_session = session_number