try:
    import detectron2
except:
    import os 
    os.system('pip install git+https://github.com/facebookresearch/detectron2.git')

# Manipulación de Datos y Bibliotecas Científicas
import csv  # Leer y escribir archivos CSV
import numpy as np  # Cálculos numéricos con soporte para matrices y arrays
import pandas as pd  # Manipulación y análisis de datos, especialmente con DataFrames
import random  # Generar números aleatorios y realizar operaciones aleatorias
import datetime  # Trabajar con fechas y horas
from datetime import datetime

# Visualización
import matplotlib.pyplot as plt  # Crear gráficos estáticos, interactivos y animados
from matplotlib.path import Path  # Trabajar con caminos geométricos en visualizaciones
from matplotlib.pyplot import axis

# Procesamiento de Imágenes y Visión por Computadora (OpenCV y Scikit-Image)
import cv2  # Para procesamiento de imágenes y tareas de visión por computadora
from skimage import measure, io, color, draw  # Funciones de procesamiento de imágenes en skimage
from skimage.measure import regionprops  # Para medir propiedades de regiones en imágenes

# Manipulación de Imágenes
from PIL import Image  # Para abrir, manipular y guardar imágenes en diferentes formatos

# Serialización de Datos
import json  # Para analizar y serializar datos JSON
import yaml  # Para leer y escribir archivos YAML (serialización de datos en formato humano)

# Barra de Progreso
from tqdm import tqdm  # Para mostrar una barra de progreso en tareas largas

# Diagramas Ternarios
import ternary  # Para crear diagramas ternarios (ej. gráficos de 3 variables)

# Generación de Reportes PDF
from fpdf import FPDF  # Para crear documentos PDF de forma sencilla



import gradio as gr
import requests
from torch import nn
import requests

import torch

from detectron2 import model_zoo
from detectron2.engine import DefaultPredictor
from detectron2.config import get_cfg
from detectron2.utils.visualizer import Visualizer
from detectron2.data import MetadataCatalog


models = [
{
    "name": "Version 1 (2-class)",
    "model_path": "https://huggingface.co/stalyn314/PaucarMineralModel/resolve/main/xplx10x_d2.pth",
    "classes": ["minerales", "Afs", "Amp", "Bt", "Ms", "Ol", "Pl", "Px", "Qz"],
    "cfg": None,
    "metadata": None
},
{
    "name": "Version 2 (4-class)",
    "model_path": "https://huggingface.co/stalyn314/PaucarMineralModel/resolve/main/10xmodel_d2.pth",
    "classes": ["minerales", "Afs", "Amp", "Bt", "Ms", "Ol", "Pl", "Px", "Qz"],
    "cfg": None,
    "metadata": None
},
]

model_name_to_id = {model["name"] : id_ for id_, model in enumerate(models)}

for model in models:

    model["cfg"] = get_cfg()
    model["cfg"].merge_from_file("./configs/detectron2/mask_rcnn_X_101_32x8d_FPN_3x.yaml")
    model["cfg"].MODEL.ROI_HEADS.NUM_CLASSES = len(model["classes"])
    model["cfg"].MODEL.WEIGHTS = model["model_path"]
    
    model["metadata"] = MetadataCatalog.get(model["name"])
    model["metadata"].thing_classes = model["classes"]

    if not torch.cuda.is_available():
      model["cfg"].MODEL.DEVICE = "cpu"


def inference(image_url, image, min_score, model_name):
    if image_url:
        r = requests.get(image_url)
        if r:
            im = np.frombuffer(r.content, dtype="uint8")
            im = cv2.imdecode(im, cv2.IMREAD_COLOR_BGR2RGB)
    else:
        # Model expect BGR!
        im = image[:,:,::-1]

    model_id = model_name_to_id[model_name]

    models[model_id]["cfg"].MODEL.ROI_HEADS.SCORE_THRESH_TEST = min_score
    predictor = DefaultPredictor(models[model_id]["cfg"])

    outputs = predictor(im)

    v = Visualizer(im, models[model_id]["metadata"], scale=1.2)
    out = v.draw_instance_predictions(outputs["instances"].to("cpu"))
        
    # Convertir la imagen de salida de BGR a RGB
    result_image = out.get_image()  # Esto sigue estando en BGR
    result_image_rgb = result_image[:, :, ::-1]  # Convertir BGR a RGB

    return result_image_rgb


title = "# DBMDZ Detectron2 Model Demo"
description = """
This demo introduces an interactive playground for our trained Detectron2 model.
Currently, two models are supported that were trained on manually annotated segments from digitized books:
* [Version 1 (2-class)](https://huggingface.co/dbmdz/detectron2-model): This model can detect *Illustration* or *Illumination* segments on a given page.
* [Version 2 (4-class)](https://huggingface.co/dbmdz/detectron2-v2-model): This model is more powerful and can detect *Illustration*, *Stamp*, *Initial* or *Other* segments on a given page.
"""
footer = "🥨"

with gr.Blocks() as demo:
    gr.Markdown(title)
    gr.Markdown(description)
    
    with gr.Tab("From URL"):
        url_input = gr.Textbox(label="Image URL", placeholder="https://api.digitale-sammlungen.de/iiif/image/v2/bsb10483966_00008/full/500,/0/default.jpg")
    
    with gr.Tab("From Image"):
        image_input = gr.Image(type="numpy", label="Input Image")

    min_score = gr.Slider(minimum=0.0, maximum=1.0, value=0.5, label="Minimum score")

    model_name = gr.Radio(choices=[model["name"] for model in models], value=models[0]["name"], label="Select Detectron2 model")

    output_image = gr.Image(type="pil", label="Output")

    inference_button = gr.Button("Submit")
    
    inference_button.click(fn=inference, inputs=[url_input, image_input, min_score, model_name], outputs=output_image)

    gr.Markdown(footer)

demo.launch()

#gr.Interface(
#    inference,
#    [gr.inputs.Textbox(label="Image URL", placeholder="https://api.digitale-sammlungen.de/iiif/image/v2/bsb10483966_00008/full/500,/0/default.jpg"),
#     gr.inputs.Image(type="numpy", label="Input Image"),
#     gr.Slider(minimum=0.0, maximum=1.0, value=0.5, label="Minimum score"),
#     gr.Radio(choices=[model["name"] for model in models], value=models[0]["name"], label="Select Detectron2 model"),
#    ], 
#    gr.outputs.Image(type="pil", label="Output"),
#    title=title,
#    description=description,
#    article=article,
#    examples=[]).launch()