from src.segmentation import segment_person
from src.stereoscopic_insert import insert_person
from src.anaglyph_converter import create_anaglyph
from src.trial_insert import insert_person_V2
import cv2
from PIL import Image


def generate_anaglyph(
    person_image_path, left_image_path, right_image_path, depth="medium"
):
    """
    Generate an anaglyph 3D image by segmenting a person from an uploaded image,
    inserting the segmented person into a stereoscopic pair, and converting the result
    to an anaglyph format.

    Parameters:
    - person_image_path: file path to the uploaded person image.
    - left_image_path: file path to the uploaded left stereoscopic image.
    - right_image_path: file path to the uploaded right stereoscopic image.
    - depth: depth level for the person in the 3D scene ("close", "medium", or "far").

    Returns:
    - Anaglyph PIL image ready for display.
    """

    # Segment the person from the uploaded image
    person_image = segment_person(person_image_path)

    # Save the segmented image temporarily for overlay purposes
    person_image.save("temp_person.png")

    # Insert the segmented person into the stereoscopic images
    left_image, right_image = insert_person_V2(
        left_image_path, right_image_path, "temp_person.png", depth
    )

    # Create the final anaglyph image from the left and right images
    anaglyph_image = create_anaglyph(left_image, right_image)
    anaglyph_pil = Image.fromarray(cv2.cvtColor(anaglyph_image, cv2.COLOR_BGR2RGB))

    return anaglyph_pil