from textual.widgets import Static
from PIL import Image, ImageFilter
from rich_pixels import Pixels
from rich_pixels._renderer import HalfcellRenderer
from pathlib import Path

class GameImagePreview(Static):
    def __init__(
        self,
        image_path: str,
        *,
        scale_factor: float = 0.098,
        fallback_text: str = "[red]Failed to load image[/red]",
        **kwargs
    ):
        self.image_path = image_path
        self.scale_factor = scale_factor
        self.fallback_text = fallback_text
        renderable = self.load_and_process_image()

        # THIS is the key line that makes the image render:
        super().__init__(renderable, **kwargs)

    def load_and_process_image(self):
        path = Path(self.image_path)
        if not path.exists() or not path.is_file():
            return f"{self.fallback_text}\n[dim]Not found: {self.image_path}[/]"

        try:
            with Image.open(path) as img:
                if img.mode != "RGBA":
                    img = img.convert("RGBA")

                resized = img.resize(
                    (
                        int(img.width * self.scale_factor),
                        int(img.height * self.scale_factor),
                    ),
                    resample=Image.Resampling.LANCZOS,
                )
                resized = resized.filter(ImageFilter.UnsharpMask(radius=1, percent=150, threshold=3))

                return Pixels.from_image(
                    resized,
                    renderer=HalfcellRenderer(default_color="black"),
                )
        except Exception as e:
            return f"{self.fallback_text}\n[dim]{e}[/]"