#!/usr/bin/env python3

# Usage: $0 visidata-cli.inc visidata-opts.inc

import sys
import visidata
dispwidth = visidata.dispwidth


fncli, fnopts = sys.argv[1:]

print(visidata.__version_info__)
padding = 26

options_cli_skel = '''.It Sy --{cli_optname} Ns = Ns Ar "{type}" No "{default}"
{description}
'''

options_cli_skel_bool = '''.It Sy --{cli_optname} No "{default}"
{description}
'''

options_menu_skel = '''.It Sy "{optname:<19}" No "{default}"
{description}
'''

visidata.options.setdefault('plot_colors', '', visidata.options._opts._get('plot_colors', 'default').helpstr, visidata.options._opts._get('plot_colors', 'default').module)
visidata.options.setdefault('motd_url', '', visidata.options._opts._get('motd_url', 'default').helpstr, visidata.options._opts._get('motd_url', 'default').module)

with open(fncli, 'w') as cliOut:
    with open(fnopts, 'w') as menuOut:
        optkeys = visidata.options.keys()
        optvalues = [visidata.options._opts._get(optname) for optname in optkeys]

        widestoptwidth, widestopt = sorted((dispwidth(opt.name)+dispwidth(str(opt.value)), opt.name) for opt in optvalues)[-1]
        print('widest option+default is "%s", width %d' % (widestopt, widestoptwidth))
        widestoptwidth = 35
        menuOut.write('.Bl -tag -width %s -compact\n' % ('X'*(widestoptwidth+3)))

#        cliwidth = max(padding+len(str(opt.value)) for opt in optvalues)
        cliwidth = 43
        print('using width for cli options of %d' % cliwidth)
        cliOut.write('.Bl -tag -width %s -compact\n' % ('X'*(cliwidth+3)))

        for opt in optvalues:
            if opt.name[:5] in ['color', 'disp_']:
                options_menu = options_menu_skel.format(optname=opt.name,
                                                        type=type(opt.value).__name__,
                                                        default=visidata.options.getdefault(opt.name),
                                                        description=opt.helpstr)
                menuOut.write(options_menu)
            else:
                cli_optname=opt.name.replace('_', '-')
                cli_type=type(opt.value).__name__
                optlen = dispwidth(cli_optname)+dispwidth(cli_type)+1
                if cli_type != 'bool' or visidata.options.getdefault(opt.name):
                    cliOut.write(options_cli_skel.format(cli_optname=cli_optname,
                                                    optname = opt.name,
                                                    type=cli_type+" "*(padding-optlen),
                                                    default=visidata.options.getdefault(opt.name),
                                                     description=opt.helpstr))
                else:

                    cliOut.write(options_cli_skel_bool.format(cli_optname=cli_optname,
                                                    optname = opt.name,
                                                    type=cli_type+" "*(padding-optlen),
                                                    default=" "*(padding-optlen+5)+str(visidata.options.getobj(opt.name, 'default')),
                                                     description=opt.helpstr))

        menuOut.write('.El')
        cliOut.write('.El')
