import streamlit as st

from Inference import Inferencer

def app_diffsingerkr():
    if not 'diffsingerkr_duration' in st.session_state.keys():
        st.session_state.diffsingerkr_duration = ''
    if not 'diffsingerkr_lyric' in st.session_state.keys():
        st.session_state.diffsingerkr_lyric = ''
    if not 'diffsingerkr_note' in st.session_state.keys():
        st.session_state.diffsingerkr_note = ''
    if not 'inferencer' in st.session_state.keys():
        st.session_state.inferencer = Inferencer(
            hp_path= 'Hyper_Parameters.yaml',
            checkpoint_path= 'Checkpoint/S_200000.pt',
            batch_size= 1
            )

    st.title('DiffSinger-KR')
    st.markdown('* This code is an implementation of DiffSinger for Korean.')
    st.markdown('* When music score which is note, duration, and lyric information are entered, singing voices are synthesized accordingly.')
    st.markdown('* Due to the range of the trained dataset, the supported notes are between 65 and 89.')
    st.markdown('* Please refer to the [here](https://github.com/CODEJIN/DiffSingerKR) for the source code for training the model.')

    st.markdown('''---''')
    status_indicator = st.empty()
    status_indicator.header('Insert the music!')
    st.markdown('''---''')    
    example1_col, example2_col, example3_col, _ = st.columns(4)
    if example1_col.button('Example 1'):
        st.session_state.diffsingerkr_duration = '0.52,0.17,0.35,0.35,0.35,0.35,0.70,0.35,0.35,0.70,0.35,0.35,0.70,0.52,0.17,0.35,0.35,0.35,0.35,0.70,0.35,0.35,0.35,0.35,1.39'
        st.session_state.diffsingerkr_lyric = '떴,다,떴,다,비,행,기,날,아,라,날,아,라,높,이,높,이,날,아,라,우,리,비,행,기'
        st.session_state.diffsingerkr_note = '76,74,72,74,76,76,76,74,74,74,76,79,79,76,74,72,74,76,76,76,74,74,76,74,72'
        st.experimental_rerun()
    if example2_col.button('Example 2'):
        st.session_state.diffsingerkr_duration = '0.53,0.52,0.50,0.57,0.58,0.46,0.48,0.50,0.37,0.13,0.43,0.21,0.57,0.43,0.49,1.44,0.26,0.49,0.14,0.13,0.57,0.26,0.06,0.15,0.63,0.26,0.51,0.20,0.48,0.72,0.22'
        st.session_state.diffsingerkr_lyric = '만,나,고,<X>,난,외,로,움,을,<X>,알,았,어,내,겐,<X>,관,심,조,<X>,차,<X>,없,<X>,다,는,걸,<X>,알,면,서'
        st.session_state.diffsingerkr_note = '76,78,79,0,71,74,72,71,72,0,71,69,69,71,74,0,79,78,79,0,71,0,74,0,74,72,72,0,71,71,69'
        st.experimental_rerun()
    if example3_col.button('Example 3'):
        st.session_state.diffsingerkr_duration = '0.33,0.16,0.33,0.49,0.33,0.16,0.81,0.33,0.16,0.16,0.33,0.16,0.49,0.16,0.82,0.33,0.16,0.33,0.49,0.33,0.16,0.33,0.49,0.33,0.33,0.16,0.33,1.47,0.33,0.16,0.33,0.49,0.33,0.16,0.81,0.33,0.16,0.16,0.33,0.16,0.49,0.16,0.82,0.33,0.16,0.33,0.16,0.33,0.49,0.16,0.33,0.33,0.33,0.33,0.16,0.33,0.82'
        st.session_state.diffsingerkr_lyric = '마,음,울,적,한,날,에,<X>,거,리,를,걸,어,보,고,향,기,로,운,칵,테,일,에,취,해,도,보,고,한,편,의,시,가,있,는,<X>,전,시,회,장,도,가,고,밤,새,도,<X>,록,그,리,움,에,편,질,쓰,고,파'
        st.session_state.diffsingerkr_note = '80,80,80,87,85,84,82,0,84,84,84,85,84,79,79,77,77,77,80,80,78,77,75,77,80,79,80,82,80,80,80,87,85,84,82,0,84,84,84,85,84,79,79,77,77,77,79,80,80,77,75,75,77,80,79,82,80'
        st.experimental_rerun()
    st.markdown('''---''')
    duration = st.text_input('Duration', value= st.session_state.diffsingerkr_duration)
    lyric = st.text_input('Lyric', value= st.session_state.diffsingerkr_lyric)
    note = st.text_input('Note', value= st.session_state.diffsingerkr_note)
    singer = 'CSD'
    genre = 'Children'
    key_adjustment = st.select_slider(
        label= 'Key adjustment',
        options= [x for x in range(-6, 7)],
        value= 0
        )

    if st.button("Generate!"):
        if duration != '' and lyric != '' and note != '':
            status_indicator.header('Generating...')
            audio = st.session_state.inferencer.Inference_Epoch(
                message_times_list= [[float(x) for x in duration.strip().split(',')]],
                lyrics= [[x for x in lyric.strip().split(',')]],
                notes= [[
                    (int(x) + key_adjustment if int(x) != 0 else int(x))
                    for x in note.strip().split(',')
                    ]],
                singers= [singer],
                genres= [genre]
                )[0]

            st.audio(
                audio,
                format="audio/wav",
                start_time=0,
                sample_rate= st.session_state.inferencer.hp.Sound.Sample_Rate
                )

            status_indicator.header('Done.')

if __name__ == '__main__':
    app_diffsingerkr()