"""Pydantic schemas for API request/response models."""

from typing import Optional
from pydantic import BaseModel, Field


# ============== Resource Schemas ==============

class ResourceSchema(BaseModel):
    """Schema for a resource item."""
    type: str
    quantity: int
    created_turn: int
    decay_rate: Optional[int] = None


# ============== Agent Schemas ==============

class PositionSchema(BaseModel):
    """Schema for agent position (float for smooth movement)."""
    x: float
    y: float


class StatsSchema(BaseModel):
    """Schema for agent vital stats."""
    energy: int
    hunger: int
    thirst: int
    heat: int
    max_energy: int
    max_hunger: int
    max_thirst: int
    max_heat: int


class AgentActionSchema(BaseModel):
    """Schema for current agent action."""
    action_type: str
    target_position: Optional[PositionSchema] = None
    target_resource: Optional[str] = None
    progress: float
    is_moving: bool
    message: str


class AgentResponse(BaseModel):
    """Schema for agent data."""
    id: str
    name: str
    profession: str
    position: PositionSchema
    home_position: PositionSchema
    stats: StatsSchema
    inventory: list[ResourceSchema]
    money: int
    is_alive: bool
    is_corpse: bool = False
    can_act: bool
    current_action: AgentActionSchema
    last_action_result: str
    death_turn: int = -1
    death_reason: str = ""
    # Age system
    age: int = 25
    max_age: int = 70
    age_category: str = "prime"
    birth_day: int = 0
    generation: int = 0
    parent_ids: list[str] = []
    children_count: int = 0
    # Age modifiers
    skill_modifier: float = 1.0
    energy_cost_modifier: float = 1.0
    learning_modifier: float = 1.0
    # Personality and skills
    personality: dict = {}
    skills: dict = {}
    actions_performed: dict = {}
    total_trades: int = 0
    total_money_earned: int = 0
    action_history: list = []


# ============== Market Schemas ==============

class OrderSchema(BaseModel):
    """Schema for a market order."""
    id: str
    seller_id: str
    resource_type: str
    quantity: int
    price_per_unit: int
    total_price: int
    created_turn: int
    status: str
    turns_without_sale: int


class MarketPriceSchema(BaseModel):
    """Schema for market price summary."""
    lowest_price: Optional[int]
    highest_price: Optional[int]
    total_available: int
    num_orders: int


class TradeResultSchema(BaseModel):
    """Schema for a trade result."""
    success: bool
    order_id: str = ""
    buyer_id: str = ""
    seller_id: str = ""
    resource_type: Optional[str] = None
    quantity: int = 0
    total_paid: int = 0
    message: str = ""


class MarketStateResponse(BaseModel):
    """Schema for market state."""
    orders: list[OrderSchema]
    prices: dict[str, MarketPriceSchema]
    recent_trades: list[TradeResultSchema]


# ============== World Schemas ==============

class WorldSizeSchema(BaseModel):
    """Schema for world dimensions."""
    width: int
    height: int


class StatisticsSchema(BaseModel):
    """Schema for world statistics."""
    current_turn: int
    current_day: int
    step_in_day: int
    time_of_day: str
    living_agents: int
    total_agents_spawned: int
    total_agents_died: int
    total_births: int = 0
    total_money_in_circulation: int
    professions: dict[str, int]
    # Wealth inequality metrics
    avg_money: float = 0.0
    median_money: int = 0
    richest_agent: int = 0
    poorest_agent: int = 0
    gini_coefficient: float = 0.0
    # Age demographics
    age_distribution: dict[str, int] = {}
    avg_age: float = 0.0
    oldest_agent: int = 0
    youngest_agent: int = 0
    generations: dict[int, int] = {}
    # Death statistics
    deaths_by_cause: dict[str, int] = {}
    # Village storage
    village_storage: dict[str, int] = {}


class ActionLogSchema(BaseModel):
    """Schema for an action in the turn log."""
    agent_id: str
    agent_name: str
    decision: dict
    result: Optional[dict] = None


class TurnLogSchema(BaseModel):
    """Schema for a turn log entry."""
    turn: int
    agent_actions: list[ActionLogSchema]
    deaths: list[str]
    births: list[str] = []
    trades: list[dict]
    resources_produced: dict[str, int] = {}
    resources_consumed: dict[str, int] = {}
    resources_spoiled: dict[str, int] = {}
    day_events: dict = {}


class ResourceStatsSchema(BaseModel):
    """Schema for resource statistics."""
    produced: dict[str, int] = {}
    consumed: dict[str, int] = {}
    spoiled: dict[str, int] = {}
    in_inventory: dict[str, int] = {}
    in_market: dict[str, int] = {}


class WorldStateResponse(BaseModel):
    """Full world state response."""
    turn: int
    day: int
    step_in_day: int
    time_of_day: str
    world_size: WorldSizeSchema
    agents: list[AgentResponse]
    statistics: StatisticsSchema
    market: MarketStateResponse
    mode: str
    is_running: bool
    recent_logs: list[TurnLogSchema]
    resource_stats: ResourceStatsSchema = ResourceStatsSchema()


# ============== Control Schemas ==============

class ControlResponse(BaseModel):
    """Response for control operations."""
    success: bool
    message: str
    turn: Optional[int] = None
    mode: Optional[str] = None


class SetModeRequest(BaseModel):
    """Request to set simulation mode."""
    mode: str = Field(..., pattern="^(manual|auto)$")


class InitializeRequest(BaseModel):
    """Request to initialize simulation."""
    num_agents: int = Field(default=8, ge=1, le=50)
    world_width: int = Field(default=20, ge=5, le=100)
    world_height: int = Field(default=20, ge=5, le=100)


# ============== Error Schemas ==============

class ErrorResponse(BaseModel):
    """Error response."""
    error: str
    detail: Optional[str] = None