import os
from PIL import Image
import torch
import gradio as gr
import torch
torch.backends.cudnn.benchmark = True
from torchvision import transforms, utils
from util import *
from PIL import Image
import math
import random
import numpy as np
from torch import nn, autograd, optim
from torch.nn import functional as F
from tqdm import tqdm
import lpips
from model import *
from copy import deepcopy
import imageio

import os
import sys
import numpy as np
from PIL import Image
import torch
import torchvision.transforms as transforms
from argparse import Namespace
from e4e.models.psp import pSp
from util import *
from huggingface_hub import hf_hub_download

device= 'cpu'
model_path_e = hf_hub_download(repo_id="akhaliq/JoJoGAN_e4e_ffhq_encode", filename="e4e_ffhq_encode.pt")
ckpt = torch.load(model_path_e, map_location='cpu')
opts = ckpt['opts']
opts['checkpoint_path'] = model_path_e
opts= Namespace(**opts)
net = pSp(opts, device).eval().to(device)

@ torch.no_grad()
def projection(img, name, device='cuda'):

    transform = transforms.Compose(
        [
            transforms.Resize(256),
            transforms.CenterCrop(256),
            transforms.ToTensor(),
            transforms.Normalize([0.5, 0.5, 0.5], [0.5, 0.5, 0.5]),
        ]
    )
    img = transform(img).unsqueeze(0).to(device)
    images, w_plus = net(img, randomize_noise=False, return_latents=True)
    result_file = {}
    result_file['latent'] = w_plus[0]
    torch.save(result_file, name)
    return w_plus[0]

device = 'cpu'

latent_dim = 512

model_path_s = hf_hub_download(repo_id="akhaliq/jojogan-stylegan2-ffhq-config-f", filename="stylegan2-ffhq-config-f.pt")
original_generator = Generator(1024, latent_dim, 8, 2).to(device)
ckpt = torch.load(model_path_s, map_location=lambda storage, loc: storage)
original_generator.load_state_dict(ckpt["g_ema"], strict=False)
mean_latent = original_generator.mean_latent(10000)


#MODELS
generatorzombie = deepcopy(original_generator)
generatorhulk = deepcopy(original_generator)
generatorjojo = deepcopy(original_generator)
generatorwalker = deepcopy(original_generator)

transform = transforms.Compose(
    [
        transforms.Resize((1024, 1024)),
        transforms.ToTensor(),
        transforms.Normalize((0.5, 0.5, 0.5), (0.5, 0.5, 0.5)),
    ]
)

#HULK
modelhulk = hf_hub_download(repo_id="Awesimo/jojogan-hulk", filename="hulk.pt")
ckpthulk = torch.load(modelhulk, map_location=lambda storage, loc: storage)
generatorhulk.load_state_dict(ckpthulk["g"], strict=False)

#ZOMBIE
modelzombie = hf_hub_download(repo_id="Awesimo/jojogan-zombie", filename="zombie.pt")
ckptzombie = torch.load(modelzombie, map_location=lambda storage, loc: storage)
generatorzombie.load_state_dict(ckptzombie["g"], strict=False)

#WHITE WALKER
modelwalker = hf_hub_download(repo_id="Awesimo/jojogan-white-walker", filename="white_walker_v2.pt")
ckptwalker = torch.load(modelwalker, map_location=lambda storage, loc: storage)
generatorwalker.load_state_dict(ckptwalker["g"], strict=False)


def inference(img, model):
    img.save('out.jpg')
    aligned_face = align_face('out.jpg')

    my_w = projection(aligned_face, "test.pt", device).unsqueeze(0)
    if model == 'Hulk':
        with torch.no_grad():
            my_sample = generatorhulk(my_w, input_is_latent=True)
    elif model == 'Zombie':
        with torch.no_grad():
            my_sample = generatorzombie(my_w, input_is_latent=True)
    elif model == 'White-Walker':
        with torch.no_grad():
            my_sample = generatorwalker(my_w, input_is_latent=True)
    else:
        with torch.no_grad():
            my_sample = generatorzombie(my_w, input_is_latent=True)


    npimage = my_sample[0].permute(1, 2, 0).detach().numpy()
    imageio.imwrite('filename.jpeg', npimage)
    return 'filename.jpeg'

title = "JoJoGAN Test 🤖"
examples=[['assets/samples/image01.jpg','Hulk'],['assets/samples/image02.jpg','Zombie'],['assets/samples/image03.jpg','White-Walker'],['assets/samples/image04.jpg','Hulk']]
gr.Interface(inference, [gr.inputs.Image(type="pil"),gr.inputs.Dropdown(choices=['Hulk', 'Zombie', 'White-Walker'], type="value", default='Hulk', label="Model")], gr.outputs.Image(type="file"),title=title,allow_flagging=False,examples=examples,allow_screenshot=False).launch()