## kinetic parameters for the LCC channel, adapted from Pan et al
## in the format of the other channels in the BG library

## hardcode the parameters from Pan's optimisation for ionic permeability and gate variables directly
import numpy as np 

def kinetic_parameters(M, include_type2_reactions, dims, V):

    # Set the kinetic rate constants

    num_cols = dims['num_cols']
    num_rows = dims['num_rows']

    # constants are stored in V
    F = V['F']
    N_A = V['N_A']

    G_GHK = 5.0759e-09 # from matlab fitting

    # convert    to    permeability
    P_SOC = G_GHK / F * 1e12 #Unit    pL / s
    channel_k = P_SOC #/ x_Cab_channel

    kf =[channel_k]
    kr =[channel_k]
    k_kinetic = kf + kr

    # CONSTRAINTS
    N_cT = []
    K_C = []

    # volume vector
    # [ outside / inside / ER ]
    W = [1] * num_cols + [V['V_o'], V['V_myo'], V['V_ER']]

    return (k_kinetic, N_cT, K_C, W)