from __future__ import annotations

from enum import Enum
from typing import Annotated

from pydantic import BaseModel, Field


class Shape(str, Enum):
    CIRCLE = "circle"
    RECTANGLE = "rectangle"
    TRIANGLE = "triangle"
    STAR = "star"


class MovementPattern(str, Enum):
    STATIC = "static"
    KEYBOARD_HORIZONTAL = "keyboard_horizontal"
    KEYBOARD_ALL = "keyboard_all"
    RAIN_DOWN = "rain_down"
    BOUNCE = "bounce"
    CHASE_PLAYER = "chase_player"
    ZIGZAG = "zigzag"
    CIRCULAR = "circular"


class CollisionAction(str, Enum):
    GAME_OVER = "game_over"
    SCORE_PLUS = "score_plus"
    SCORE_MINUS = "score_minus"
    DESTROY_TARGET = "destroy_target"
    BOUNCE_BACK = "bounce_back"


class InputKey(str, Enum):
    ARROW_LEFT = "arrow_left"
    ARROW_RIGHT = "arrow_right"
    ARROW_UP = "arrow_up"
    ARROW_DOWN = "arrow_down"
    SPACE = "space"


class InputAction(str, Enum):
    MOVE_LEFT = "move_left"
    MOVE_RIGHT = "move_right"
    MOVE_UP = "move_up"
    MOVE_DOWN = "move_down"


class ScorePosition(str, Enum):
    TOP_LEFT = "top_left"
    TOP_RIGHT = "top_right"
    TOP_CENTER = "top_center"


class SpriteComponent(BaseModel):
    id: str = Field(description="Unique sprite type identifier (e.g. 'player', 'enemy', 'coin')")
    shape: Shape
    color: str = Field(default="#ffffff", description="CSS hex color, e.g. '#00ffcc'")
    x: float = Field(default=300, ge=-300, le=1100, description="Initial X position; can be negative for off-screen spawning")
    y: float = Field(default=400, ge=-700, le=1350, description="Initial Y position; can be negative for off-screen spawning")
    width: float = Field(default=30, ge=5, le=150)
    height: float = Field(default=30, ge=5, le=150)
    movement_pattern: MovementPattern = MovementPattern.STATIC
    speed: float = Field(default=3.0, ge=0.5, le=15.0)
    is_player: bool = Field(default=False, description="True for the player-controlled sprite")
    count: int = Field(default=1, ge=1, le=20, description="Number of instances to spawn (for enemies/collectibles)")


class CollisionRule(BaseModel):
    between: Annotated[list[str], Field(min_length=2, max_length=2, description="Exactly two sprite IDs")]
    action: CollisionAction
    value: int = Field(default=1, ge=1, description="Points added/removed for score actions")


class InputBinding(BaseModel):
    key: InputKey
    action: InputAction
    target: str = Field(description="ID of the sprite to control")


class ScoreDisplay(BaseModel):
    position: ScorePosition = ScorePosition.TOP_RIGHT
    font_size: int = Field(default=22, ge=12, le=40)
    color: str = Field(default="#00ffcc")
    label: str = Field(default="SCORE")


class CanvasGame(BaseModel):
    title: str = Field(description="Short evocative game title (2-4 words)")
    width: int = Field(default=600, ge=300, le=800)
    height: int = Field(default=500, ge=300, le=650)
    background_color: str = Field(default="#0a0a0a")
    sprites: list[SpriteComponent] = Field(default_factory=list)
    collision_rules: list[CollisionRule] = Field(default_factory=list)
    input_bindings: list[InputBinding] = Field(default_factory=list)
    score_display: ScoreDisplay | None = Field(default=None)
    lives: int = Field(default=3, ge=1, le=10)