from .base_effect import BaseEffect
from PIL import ImageFont

class ScrollingTextEffect(BaseEffect):
    def __init__(self, text, width, height):
        self.text = text
        self.width = width
        self.height = height
        try:
            self.font = ImageFont.truetype("assets/DejaVuSans.ttf", size=48)
        except IOError:
            self.font = ImageFont.load_default()

    def draw(self, draw, current_time, audio_features):
        if not self.text: return
        text_width = draw.textlength(self.text, font=self.font)
        x = self.width - ((current_time * 150) % (self.width + text_width))
        y = self.height - 80
        draw.text((x+2, y+2), self.text, font=self.font, fill=(0, 0, 0, 150))
        draw.text((x, y), self.text, font=self.font, fill=(255, 255, 255, 220))