import os
from PIL import Image, ImageDraw, ImageFont, ImageOps

from utils import Utils

class TextProcessor:
    def apply_frontmatter(text, replacements):
        for key, value in replacements.items():
            text = text.replace(f'{{{key}}}', value)
        return text


class ImageProcessor:
    def __init__(self, size):
        _, self.temp_dir = Utils.get_tempdir()
        self.size = size

    def create_layer(self, layout='horizontal'):
        ts, temp_dir = Utils.get_tempdir()
        size = (int(self.size[0]), int(self.size[1]))  # Convert to integers
        img = Image.new('RGBA', size, (255, 255, 255, 0))
        draw = ImageDraw.Draw(img)
        draw.rectangle([(0, 0), (self.size[0], self.size[1])], outline="lightgray")

        return img

    def combine_images(self, base_image, overlay_path, size, position):
        try:
            base_img = base_image.convert("RGBA")

            with open(overlay_path, 'rb') as f:
                overlay_img = Image.open(f).convert("RGBA")

            overlay_img_resized = overlay_img.resize(size)

            if position is None:
                position = (0, 0)

            # Create a blank image with the same size as base_img
            temp_img = Image.new('RGBA', base_img.size, (255, 255, 255, 0))

            temp_img.paste(overlay_img_resized, position, overlay_img_resized)

            # Alpha composite the temporary image with the base image
            base_img = Image.alpha_composite(base_img, temp_img)

            return base_img
        except Exception as e:
            raise Exception(f"Error combining images: {e}")

    # def combine_txt(self, base_image, text, size, position, font_path='fonts/msmincho.ttc', font_size=12, fill="black"):
    #     try:
    #         font_path = str(Path(__file__).parent / "../fonts/msmincho.ttc")
    #         font = ImageFont.truetype(font_path, font_size)
    #         base_img = base_image.convert("RGBA")
    #         draw = ImageDraw.Draw(base_img)
    #         w, h = size
    #         draw.text(position, text, font=font, fill=fill)

    #         return base_img
    #     except Exception as e:
    #         raise Exception(f"Error combining text: {e}")