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#!/usr/bin/env python3
import textwrap
import scipy.signal as sig
import numpy as np
if __name__ == '__main__':
import argparse
parser = argparse.ArgumentParser()
parser.add_argument('n', type=int, help='Window size')
parser.add_argument('w', type=float, help='Wavelet width')
parser.add_argument('-v', '--variable', default='cwt_ricker_table', help='Name for alias variable pointing to generated wavelet LUT')
args = parser.parse_args()
print(f'/* CWT Ricker wavelet LUT for {args.n} sample window of width {args.w}. */')
varname = f'cwt_ricker_{args.n}_window_{str(args.w).replace(".", "F")}'
print(f'const float {varname}[{args.n}] = {{')
win = sig.ricker(args.n, args.w)
par = ' '.join(f'{f:>015.8g}f,' for f in win)
print(textwrap.fill(par,
initial_indent=' '*4, subsequent_indent=' '*4,
width=120,
replace_whitespace=False, drop_whitespace=False))
print('};')
print()
print(f'const float * const {args.variable} __attribute__((weak)) = {varname};')
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