import streamlit as st
from evaluate import evaluator
import evaluate
import datasets
from huggingface_hub import HfApi, ModelFilter
from transformers import AutoTokenizer, AutoModelForSequenceClassification
from transformers import AutoTokenizer, AutoModelForMaskedLM
from transformers import pipeline
import matplotlib.pyplot as plt

st.title("Metric Compare")

st.markdown("### Choose the dataset you want to use for the comparison:")

api = HfApi()
datasets = [d.id for d in api.list_datasets(filter="task_categories:text-classification", sort = "downloads", direction=-1, limit = 20)]

dset = st.selectbox('Choose a dataset from the Hub', options=datasets)

dset_split = st.selectbox('Choose a dataset split for evaluation', options=dset.keys())


st.markdown("### Now select up to 5 models to compare their performance:")

filt = ModelFilter(trained_dataset=dset)
all_models = [m.modelId for m in api.list_models(filter=filt, sort = "downloads", direction=-1, limit = 20) if 't5' not in model.tags]

models = st.multiselect(
     'Choose the models that have been trained/finetuned on this dataset', 
     options=all_models)
     
button = st.button("Print Models",disabled=False)

if button :
   if len(location) < 6:
       st.write(models)
   else:
       st.warning("Please select at most 5 models")
     
st.markdown("### What two metrics do you want to compare?")

metrics = st.multiselect(
     'Choose the metrics for the comparison', 
     options=['f1', 'accuracy', 'precision', 'recall'])
     
button2 = st.button("Print Metrics",disabled=False)

if button2 :
   if len(metrics ) < 3:
       st.write(metrics)
   else:
       st.warning("Please select at most 2 metrics")
     
st.markdown("### Now wait for the dataset and models to load (this can take some time if they are big!")

### Loading data
try:
  data = datasets.load_dataset(dset, split=dset_split)
  st.text("Loaded the validation split of dataset "+ str(dset))
except:
  data = datasets.load_dataset(dset, split="test") 
  st.text("Loaded the test split of dataset "+ str(dset))
                   
  st.text("Sorry, I can't load this dataset... try another one!")
     
### Loading models

for i in range (len(models)):
  try:
    globals()[f"tokenizer_{i}"] = AutoTokenizer.from_pretrained(models[i])
    globals()[f"model_{i}"] = AutoModelForSequenceClassification.from_pretrained(models[i])
    st.text("Loaded model "+ str(models[i]))
  except:
    st.text("Sorry, I can't load model "+ str(models[i]))

### Defining metrics 
for i in range (len(metrics)):
  try:
    globals()[f"metrics[i]"] = evaluate.load(metrics[i])
  except:
     st.text("Sorry, I can't load metric "+ str(metrics[i]) +"... Try another one!")


### Defining Evaluator
eval = evaluator("text-classification")

### Defining pipelines

st.markdown("### Help us pick the right labels for your models")

st.text("The labels for your dataset are: "+ str(data.features['label'].names))

"""
for i in range (len(model_list)):
  st.text("The labels for your dataset are: "+ str(data.features['label'].names))
  print(model_list[i])
  print(AutoConfig.from_pretrained(models[0]).id2label)

for i in range (len(models)):
  try:
    globals()[f"pipe1_{i}"] = AutoTokenizer.from_pretrained(models[i])
    globals()[f"model_{i}"] = AutoModelForSequenceClassification.from_pretrained(models[i])
     st.text("Loaded model "+ str(models[i]))
  except:
     st.text("Sorry, I can't load model "+ str(models[i]))

pipe1 = pipeline("text-classification", model=model1, tokenizer= tokenizer1, device=0)
res_accuracy1 = eval.compute(model_or_pipeline=pipe1, data=data, metric=accuracy,
                       label_mapping={"NEGATIVE": 0, "POSITIVE": 1},)
res_f11 = eval.compute(model_or_pipeline=pipe1, data=data, metric=f1,
                       label_mapping={"NEGATIVE": 0, "POSITIVE": 1},)
print({**res_accuracy1, **res_f11})

pipe2 = pipeline("text-classification", model=model2, tokenizer= tokenizer2, device=0)
res_accuracy2 = eval.compute(model_or_pipeline=pipe2, data=data, metric=accuracy,
                       label_mapping={"LABEL_0": 0, "LABEL_1": 1},)
res_f12 = eval.compute(model_or_pipeline=pipe2, data=data, metric=f1,
                       label_mapping={"LABEL_0": 0, "LABEL_1": 1},)
print({**res_accuracy2, **res_f12})

pipe3 = pipeline("text-classification", model=model3, tokenizer= tokenizer3, device=0)
res_accuracy3 = eval.compute(model_or_pipeline=pipe3, data=data, metric=accuracy,
                       label_mapping={"neg": 0, "pos": 1},)
res_f13 = eval.compute(model_or_pipeline=pipe3, data=data, metric=f1,
                       label_mapping={"neg": 0, "pos": 1},)
print({**res_accuracy3, **res_f13})

pipe4 = pipeline("text-classification", model=model4, tokenizer= tokenizer4, device=0)
res_accuracy4 = eval.compute(model_or_pipeline=pipe4, data=data, metric=accuracy,
                       label_mapping={"LABEL_0": 0, "LABEL_1": 1},)
res_f14 = eval.compute(model_or_pipeline=pipe4, data=data, metric=f1,
                       label_mapping={"LABEL_0": 0, "LABEL_1": 1},)
print({**res_accuracy4, **res_f14})

pipe5 = pipeline("text-classification", model=model5, tokenizer= tokenizer5, device=0)
res_accuracy5 = eval.compute(model_or_pipeline=pipe5, data=data, metric=accuracy,
                       label_mapping={"LABEL_0": 0, "LABEL_1": 1},)
res_f15 = eval.compute(model_or_pipeline=pipe5, data=data, metric=f1,
                       label_mapping={"LABEL_0": 0, "LABEL_1": 1},)
print({**res_accuracy5, **res_f15})

plt.plot(res_accuracy1['accuracy'], res_f11['f1'], marker='o', markersize=6, color="red")
plt.annotate('distilbert', xy=(res_accuracy1['accuracy']+0.001, res_f11['f1']))
plt.plot(res_accuracy2['accuracy'], res_f12['f1'], marker='o', markersize=6, color="blue")
plt.annotate('distilbert-base-uncased-finetuned', xy=(res_accuracy2['accuracy']+0.001, res_f12['f1']))
plt.plot(res_accuracy3['accuracy'], res_f13['f1'], marker='o', markersize=6, color="green")
plt.annotate('roberta-base', xy=(res_accuracy3['accuracy']-0.009, res_f13['f1']))
plt.plot(res_accuracy4['accuracy'], res_f14['f1'], marker='o', markersize=6, color="purple")
plt.annotate('funnel-transformer-small', xy=(res_accuracy4['accuracy']-0.015, res_f14['f1']))
plt.plot(res_accuracy5['accuracy'], res_f15['f1'], marker='o', markersize=6, color="black")
plt.annotate('SENATOR', xy=(res_accuracy5['accuracy']+0.001, res_f15['f1']))

plt.xlabel('Accuracy')
plt.ylabel('F1 Score') 
#plt.xlim([0.9, 1.0])
#plt.ylim([0.9, 1.0])
plt.title('Comparing the Models')
"""