kc

#!/usr/bin/env php
<?php
function rgb($hex) {
    $r = substr($hex,0,2);
    $g = substr($hex,2,2);
    $b = substr($hex,4,2);
    return [hexdec($r), hexdec($g), hexdec($b)];
}

function preview($str, $cols) {
    [$r,$g,$b] = rgb($cols['foreground']);
    [$br,$bg,$bb] = rgb($cols['background']);
    [$sr,$sg,$sb] = rgb($cols['selection_background']);
    [$cr,$cg,$cb] = rgb($cols['cursor']);
    $ret = "\x1b[38;2;{$cr};{$cg};{$cb}m\u{2588}\x1b[38;2;{$r};{$g};{$b}m\x1b[48;2;{$br};{$bg};{$bb}m{$str} ";
    $c = 'a';
    $len = strlen($str)+2;
    foreach($cols as $name=>$rgb) {
        if(substr($name,0,5) != 'color') continue;
	[$r,$g,$b] = rgb($rgb);
        $ret .= "\x1b[38;2;{$r};{$g};{$b}m{$c}";
	$c++;
	$len++;
    }
    $sel = substr(implode('',range('A','z')),0,52-$len);
    if(empty($cols['selection_foreground'])) {
        $ret .= "\x1b[38;2;0;0;0m\x1b[48;2;{$sr};{$sg};{$sb}m{$sel} \x1b[0m";
    } else {
        [$r,$g,$b] = rgb($cols['selection_foreground']);
        $ret .= "\x1b[38;2;{$r};{$g};{$b}m\x1b[48;2;{$sr};{$sg};{$sb}m{$sel} \x1b[0m";
    }
    return $ret;
}

function themes($dir) {
    $themes = [];
    foreach (new DirectoryIterator($dir) as $f) {
        if($f->isDot()) continue;
        $fn = $f->getFilename();
	$cl = [];
	$cols = file("$dir/$fn");
	foreach($cols as $line) {
	    if(preg_match('/([^\s]+)\s*#(.*)$/', $line, $ma)) {
                $cl[$ma[1]] = $ma[2];
	    }
	}
        $themes[substr($fn,0,-5)] = $cl;
    }
    return $themes;
}

$themes = themes("{$_ENV['HOME']}/.config/kitty/kitty-themes/themes");
ksort($themes);
$sel = [];
$i = 1;
foreach($themes as $name=>$cols) {
    $pre = preview($name,$cols);
    $h = str_pad(dechex($i),2,'0',STR_PAD_LEFT);
    if($argc==1) {
        echo "$h:$pre  ";
        if(!($i%2)) echo "\n";
    }
    $sel[$h] = $name;
    $i++;
}
if($argc>1) {
    system("kitty @ set-colors -a ~/.config/kitty/kitty-themes/themes/{$sel[$argv[1]]}.conf");
}
echo "\n";