#!/usr/bin/env php
<?php

$windowKey = $argv[1];
$blockButton = $argv[2];

require __DIR__.'/base/block.php';

function getWorkspaces(): array
{
    $output = shell_exec('i3-msg -t get_workspaces');

    return json_decode($output, true);
}

function getVisibleWorkspaces(): array
{
    $workspaces = [];

    foreach (getWorkspaces() as $wp) {
        if (true === $wp['visible']) {
            $workspaces[] = $wp;
        }
    }

    return $workspaces;
}

function getTree(): array
{
    $output = shell_exec('i3-msg -t get_tree');

    return json_decode($output, true);
}

function getVisibleWorkspacesNodes(array $tree, array $workspaces): array
{
    $nodes = [];
    $num = $tree['num'] ?? null;
    $output = $tree['output'] ?? null;

    foreach ($workspaces as $workspace) {
        if ($num === $workspace['num']) {
            $nodes = array_merge(
                $nodes,
                $tree['nodes']
            );

            $nodes = array_merge(
                $nodes,
                $tree['floating_nodes']
            );
        } elseif ($output === '__i3' && isset($tree['window'])) {
            $nodes[] = $tree;
        }
    }

    foreach ($tree as $node) {
        if (is_array($node)) {
            $nodes = array_merge(
                $nodes,
                getVisibleWorkspacesNodes($node, $workspaces)
            );
        }
    }

    foreach ($nodes as $k => $n) {
        if (!isset($n['window'])) {
            unset($nodes[$k]);

            foreach ($n['nodes'] as $node) {
                $nodes[] = $node;
            }

            foreach ($n['floating_nodes'] as $node) {
                $nodes[] = $node;
            }

        }
    }

    return $nodes;
}

$node = getVisibleWorkspacesNodes(getTree(), getVisibleWorkspaces())[$windowKey] ?? null;

if (!$node) {
    die(0);
}

$title = $node['window_properties']['title'];
$instance = $node['window_properties']['instance'];
$window = $node['window'];
$focused = $node['focused'];
$urgent = $node['urgent'];
$scratchpad = $node['output'] === '__i3';

if (mb_strlen($title) > 25) {
    $title = mb_substr($title, 0, 22).'…';
}

$foreground = '#9cb7d1';
$background = '#222222';

if ($focused) {
    $foreground = '#07c0d4';
    $background = '#333333';
} elseif ($scratchpad) {
    $foreground = '#bababa';
    $background = '#222222';
}

if ($urgent) {
    if (date('s') % 2) {
        $foreground = '#ffffff';
        $background = '#87af15';
    } else {
        $foreground = '#ffffff';
        $background = '#07c0d4';
    }
}

$fullText = pspan(mb_strtoupper($title), $foreground, $background).' ';

if ($blockButton) {
    shell_exec(sprintf('i3-msg "[id=%s] focus"', $window));
}

echo block(
    'workspace_apps_'.$windowKey,
    [
        'full_text' => $fullText,
        'color' => color('normal'),
        'separator' => false,
        'separator_block_width' => 0,
        'min_width' => 1,
        'align' => 'left',
    ]
);