@php
    $diff = $getState() ?? ['summary' => [], 'added' => [], 'removed' => [], 'changed' => []];
    $summary = $diff['summary'] ?? [];
    $policyType = $diff['policy_type'] ?? null;

    $groupByBlock = static function (array $items): array {
        $groups = [];

        foreach ($items as $path => $value) {
            if (! is_string($path) || $path === '') {
                continue;
            }

            $parts = explode(' > ', $path, 2);

            if (count($parts) === 2) {
                [$group, $label] = $parts;
            } else {
                $group = 'Other';
                $label = $path;
            }

            $groups[$group][$label] = $value;
        }

        ksort($groups);

        return $groups;
    };

    $stringify = static function (mixed $value): string {
        if ($value === null) {
            return '—';
        }

        if (is_bool($value)) {
            return $value ? 'Enabled' : 'Disabled';
        }

        if (is_scalar($value)) {
            return (string) $value;
        }

        return json_encode($value, JSON_PRETTY_PRINT | JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE) ?: '';
    };

    $isExpandable = static function (mixed $value): bool {
        if (is_array($value)) {
            return true;
        }

        return is_string($value) && strlen($value) > 160;
    };

    $isScriptKey = static function (mixed $name): bool {
        return in_array((string) $name, ['scriptContent', 'detectionScriptContent', 'remediationScriptContent'], true);
    };

    $canHighlightScripts = static function (?string $policyType): bool {
        return (bool) config('tenantpilot.display.show_script_content', false)
            && in_array($policyType, ['deviceManagementScript', 'deviceShellScript', 'deviceHealthScript'], true);
    };

    $selectGrammar = static function (?string $policyType, string $code): string {
        if ($policyType === 'deviceShellScript') {
            $firstLine = strtok($code, "\n") ?: '';
            $shebang = trim($firstLine);

            if (str_starts_with($shebang, '#!')) {
                if (str_contains($shebang, 'zsh')) {
                    return 'zsh';
                }

                if (str_contains($shebang, 'bash')) {
                    return 'bash';
                }

                return 'sh';
            }

            return 'sh';
        }

        return 'powershell';
    };

    $highlight = static function (?string $policyType, string $code, string $fallbackClass = '') use ($selectGrammar): ?string {
        if (! class_exists(\Torchlight\Engine\Engine::class)) {
            return null;
        }

        try {
            return (new \Torchlight\Engine\Engine())->codeToHtml(
                code: $code,
                grammar: $selectGrammar($policyType, $code),
                theme: [
                    'light' => 'github-light',
                    'dark' => 'github-dark',
                ],
                withGutter: false,
                withWrapper: true,
            );
        } catch (\Throwable $e) {
            return null;
        }
    };
@endphp

<div class="space-y-4">
    <x-filament::section
        heading="Normalized diff"
        :description="$summary['message'] ?? sprintf('%d added, %d removed, %d changed', $summary['added'] ?? 0, $summary['removed'] ?? 0, $summary['changed'] ?? 0)"
    >
        <div class="flex flex-wrap gap-2">
            <x-filament::badge color="success">
                {{ (int) ($summary['added'] ?? 0) }} added
            </x-filament::badge>
            <x-filament::badge color="danger">
                {{ (int) ($summary['removed'] ?? 0) }} removed
            </x-filament::badge>
            <x-filament::badge color="warning">
                {{ (int) ($summary['changed'] ?? 0) }} changed
            </x-filament::badge>
        </div>
    </x-filament::section>

    @foreach (['changed' => ['label' => 'Changed', 'collapsed' => false], 'added' => ['label' => 'Added', 'collapsed' => true], 'removed' => ['label' => 'Removed', 'collapsed' => true]] as $key => $meta)
        @php
            $items = $diff[$key] ?? [];
            $groups = $groupByBlock(is_array($items) ? $items : []);
        @endphp

        @if ($groups !== [])
            <x-filament::section
                :heading="$meta['label']"
                collapsible
                :collapsed="$meta['collapsed']"
            >
                <div class="space-y-6">
                    @foreach ($groups as $group => $groupItems)
                        <div>
                            <div class="flex items-center justify-between">
                                <div class="text-sm font-medium text-gray-900 dark:text-white">
                                    {{ $group }}
                                </div>
                                <x-filament::badge size="sm" color="gray">
                                    {{ count($groupItems) }}
                                </x-filament::badge>
                            </div>

                            <div class="mt-2 divide-y divide-gray-200 rounded-lg border border-gray-200 dark:divide-white/10 dark:border-white/10">
                                @foreach ($groupItems as $name => $value)
                                    <div class="px-4 py-3">
                                        @if ($key === 'changed' && is_array($value) && array_key_exists('from', $value) && array_key_exists('to', $value))
                                            @php
                                                $from = $value['from'];
                                                $to = $value['to'];
                                                $fromText = $stringify($from);
                                                $toText = $stringify($to);

                                                $isScriptContent = $canHighlightScripts($policyType) && $isScriptKey($name);
                                                $fromHighlight = $isScriptContent ? $highlight($policyType, (string) $fromText) : null;
                                                $toHighlight = $isScriptContent ? $highlight($policyType, (string) $toText) : null;
                                            @endphp
                                            <div class="grid grid-cols-1 gap-2 sm:grid-cols-3">
                                                <div class="text-sm font-medium text-gray-900 dark:text-white">
                                                    {{ (string) $name }}
                                                </div>
                                                <div class="text-sm text-gray-600 dark:text-gray-300">
                                                    <span class="text-xs font-semibold uppercase tracking-wide text-gray-500 dark:text-gray-400">From</span>
                                                    @if ($isExpandable($from))
                                                        <details class="mt-1">
                                                            <summary class="cursor-pointer text-sm text-gray-700 dark:text-gray-200">
                                                                View
                                                            </summary>
                                                            @if (is_string($fromHighlight) && $fromHighlight !== '')
                                                                <style>
                                                                    html.dark code.torchlight {
                                                                        background-color: var(--phiki-dark-background-color) !important;
                                                                    }

                                                                    html.dark .phiki,
                                                                    html.dark .phiki span {
                                                                        color: var(--phiki-dark-color) !important;
                                                                        font-style: var(--phiki-dark-font-style) !important;
                                                                        font-weight: var(--phiki-dark-font-weight) !important;
                                                                        text-decoration: var(--phiki-dark-text-decoration) !important;
                                                                    }
                                                                </style>

                                                                <div class="mt-2 overflow-x-auto">{!! $fromHighlight !!}</div>
                                                            @else
                                                                <pre class="mt-2 overflow-x-auto text-xs text-gray-800 dark:text-gray-200">{{ $fromText }}</pre>
                                                            @endif
                                                        </details>
                                                    @else
                                                        <div class="mt-1">{{ $fromText }}</div>
                                                    @endif
                                                </div>
                                                <div class="text-sm text-gray-600 dark:text-gray-300">
                                                    <span class="text-xs font-semibold uppercase tracking-wide text-gray-500 dark:text-gray-400">To</span>
                                                    @if ($isExpandable($to))
                                                        <details class="mt-1">
                                                            <summary class="cursor-pointer text-sm text-gray-700 dark:text-gray-200">
                                                                View
                                                            </summary>
                                                            @if (is_string($toHighlight) && $toHighlight !== '')
                                                                <style>
                                                                    html.dark code.torchlight {
                                                                        background-color: var(--phiki-dark-background-color) !important;
                                                                    }

                                                                    html.dark .phiki,
                                                                    html.dark .phiki span {
                                                                        color: var(--phiki-dark-color) !important;
                                                                        font-style: var(--phiki-dark-font-style) !important;
                                                                        font-weight: var(--phiki-dark-font-weight) !important;
                                                                        text-decoration: var(--phiki-dark-text-decoration) !important;
                                                                    }
                                                                </style>

                                                                <div class="mt-2 overflow-x-auto">{!! $toHighlight !!}</div>
                                                            @else
                                                                <pre class="mt-2 overflow-x-auto text-xs text-gray-800 dark:text-gray-200">{{ $toText }}</pre>
                                                            @endif
                                                        </details>
                                                    @else
                                                        <div class="mt-1">{{ $toText }}</div>
                                                    @endif
                                                </div>
                                            </div>
                                        @else
                                            @php
                                                $text = $stringify($value);
                                            @endphp
                                            <div class="flex flex-col gap-2 sm:flex-row sm:items-start sm:justify-between">
                                                <div class="text-sm font-medium text-gray-900 dark:text-white">
                                                    {{ (string) $name }}
                                                </div>
                                                <div class="text-sm text-gray-700 dark:text-gray-200 sm:max-w-[70%]">
                                                    @if ($isExpandable($value))
                                                        <details>
                                                            <summary class="cursor-pointer text-sm text-gray-700 dark:text-gray-200">
                                                                View
                                                            </summary>
                                                            @php
                                                                $isScriptContent = $canHighlightScripts($policyType) && $isScriptKey($name);
                                                                $highlighted = $isScriptContent ? $highlight($policyType, (string) $text) : null;
                                                            @endphp

                                                            @if (is_string($highlighted) && $highlighted !== '')
                                                                <style>
                                                                    html.dark code.torchlight {
                                                                        background-color: var(--phiki-dark-background-color) !important;
                                                                    }

                                                                    html.dark .phiki,
                                                                    html.dark .phiki span {
                                                                        color: var(--phiki-dark-color) !important;
                                                                        font-style: var(--phiki-dark-font-style) !important;
                                                                        font-weight: var(--phiki-dark-font-weight) !important;
                                                                        text-decoration: var(--phiki-dark-text-decoration) !important;
                                                                    }
                                                                </style>

                                                                <div class="mt-2 overflow-x-auto">{!! $highlighted !!}</div>
                                                            @else
                                                                <pre class="mt-2 overflow-x-auto text-xs text-gray-800 dark:text-gray-200">{{ $text }}</pre>
                                                            @endif
                                                        </details>
                                                    @else
                                                        <div class="break-words">{{ $text }}</div>
                                                    @endif
                                                </div>
                                            </div>
                                        @endif
                                    </div>
                                @endforeach
                            </div>
                        </div>
                    @endforeach
                </div>
            </x-filament::section>
        @endif
    @endforeach
</div>