import mediapipe as mp
from utils import read_n_resize

def mp_face_mesh_fn(image, min_detect_conf=0.5):
    mp_drawing = mp.solutions.drawing_utils
    mp_drawing_styles = mp.solutions.drawing_styles
    mp_face_mesh = mp.solutions.face_mesh

    with mp_face_mesh.FaceMesh(
        static_image_mode=True,
        max_num_faces=1,
        refine_landmarks=True,
        min_detection_confidence=min_detect_conf
    ) as face_mesh:
        resized_image = read_n_resize(image, read=False)
        results = face_mesh.process(resized_image)

        annotated_image = resized_image.copy()
        for face_landmarks in results.multi_face_landmarks:
            mp_drawing.draw_landmarks(
                image=annotated_image,
                landmark_list=face_landmarks,
                connections=mp_face_mesh.FACEMESH_TESSELATION,
                landmark_drawing_spec=None,
                connection_drawing_spec=mp_drawing_styles
                .get_default_face_mesh_tesselation_style()
            )
            mp_drawing.draw_landmarks(
                image=annotated_image,
                landmark_list=face_landmarks,
                connections=mp_face_mesh.FACEMESH_CONTOURS,
                landmark_drawing_spec=None,
                connection_drawing_spec=mp_drawing_styles
                .get_default_face_mesh_contours_style()
            )
            mp_drawing.draw_landmarks(
                image=annotated_image,
                landmark_list=face_landmarks,
                connections=mp_face_mesh.FACEMESH_IRISES,
                landmark_drawing_spec=None,
                connection_drawing_spec=mp_drawing_styles
                .get_default_face_mesh_iris_connections_style()
            )
        return annotated_image