# Prepare Python environment

import scipy.io as sio
from pathlib import Path

data_dir = Path("../../../data/02-T1-03-MP2RAGE")
data_file = "fig2.mat"

#Load either archived or generated plot variables
mat_contents = sio.loadmat(data_dir / data_file)

T1_map = mat_contents["T1_map"]
S_INV1 = mat_contents["S_INV1"]
S_INV2 = mat_contents["S_INV2"]
B1map = mat_contents["B1map"]
xAxis = mat_contents["xAxis"][0]
yAxis = mat_contents["yAxis"][0]

## Plot
# PYTHON CODE
# Module imports

import matplotlib.pyplot as plt
import chart_studio.plotly as py
import plotly.graph_objs as go
import numpy as np
from plotly import __version__
from plotly.offline import download_plotlyjs, init_notebook_mode, plot, iplot
config={'showLink': False, 'displayModeBar': False}
init_notebook_mode(connected=True)
# The polling here is to ensure that plotly.js has already been loaded before
# setting display alignment in order to avoid a race condition.

trace1 = go.Heatmap(x = xAxis,
                   y = yAxis,
                   z=S_INV1,
                   colorscale='Gray',
                   showscale = False,
                   visible=False,
                   name = 'Signal')
trace2 = go.Heatmap(x = xAxis,
                   y = yAxis,
                   z=S_INV2,
                   colorscale='Gray',
                   showscale = False,
                   visible=False,
                   name = 'Signal')
trace3 = go.Heatmap(x = xAxis,
                   y = yAxis,
                   z=B1map,
                   zmin=-0.5,
                   zmax=0.5,
                   colorscale='RdBu',
                   showscale = False,
                   visible=True,
                   name = 'S_MP2RAGE')
trace5 = go.Heatmap(x = xAxis,
                   y = yAxis,
                   z=T1_map,
                   zmin=0.0,
                   zmax=5000,
                   colorscale='Portland',
                   xaxis='x2',
                   yaxis='y2',
                   visible=True,
                   name = 'T1 values (ms)')

data=[trace1, trace2, trace3, trace5]


updatemenus = list([
    dict(active=2,
         x = 0.09,
         xanchor = 'left',
         y = -0.15,
         yanchor = 'bottom',
         direction = 'up',
         font=dict(
                family='Times New Roman',
                size=16
            ),
         buttons=list([   
            dict(label = 'S<sub>INV1</sub>',
                 method = 'update',
                 args = [{'visible': [True, False, False, True]},
                         ]),
            dict(label = 'S<sub>INV2</sub>',
                 method = 'update',
                 args = [{'visible': [False, True, False, True]},
                           ]),
            dict(label = 'S<sub>MP2RAGE</sub>',
                 method = 'update',
                 args = [{'visible': [False, False, True, True]},
                           ])
        ])
    )
])

layout = dict(
    width=560,
    height=345,
    margin = dict(
                t=40,
                r=50,
                b=10,
                l=50),
    annotations=[
        dict(
            x=0.055,
            y=1.15,
            showarrow=False,
            text='Input Data',
            font=dict(
                family='Times New Roman',
                size=26
            ),
            xref='paper',
            yref='paper'
        ),
        dict(
            x=0.6,
            y=1.15,
            showarrow=False,
            text='T<sub>1</sub> map',
            font=dict(
                family='Times New Roman',
                size=26
            ),
            xref='paper',
            yref='paper'
        ),
        dict(
            x=1.22,
            y=1.15,
            showarrow=False,
            text='T<sub>1</sub> (ms)',
            font=dict(
                family='Times New Roman',
                size=26
            ),
            xref='paper',
            yref='paper'
        ),
    ],
    xaxis = dict(range = [0,206], autorange = False,
             showgrid = False, zeroline = False, showticklabels = False,
             ticks = '', domain=[0, 0.58]),
    yaxis = dict(range = [0,215], autorange = False,
             showgrid = False, zeroline = False, showticklabels = False,
             ticks = '', domain=[0, 1]),
    xaxis2 = dict(range = [0,206], autorange = False,
             showgrid = False, zeroline = False, showticklabels = False,
             ticks = '', domain=[0.40, 0.98]),
    yaxis2 = dict(range = [0,215], autorange = False,
             showgrid = False, zeroline = False, showticklabels = False,
             ticks = '', domain=[0, 1], anchor='x2'),
    showlegend = False,
    autosize = False,
    updatemenus=updatemenus
)


fig = dict(data=data, layout=layout)

iplot(fig, filename = 'basic-heatmap', config = config)