<?php

namespace App\Services\Intune;

use Illuminate\Support\Arr;

class ScriptsPolicyNormalizer implements PolicyTypeNormalizer
{
    public function __construct(private readonly DefaultPolicyNormalizer $defaultNormalizer) {}

    public function supports(string $policyType): bool
    {
        return in_array($policyType, [
            'deviceManagementScript',
            'deviceShellScript',
            'deviceHealthScript',
        ], true);
    }

    /**
     * @return array{status: string, settings: array<int, array<string, mixed>>, settings_table?: array<string, mixed>, warnings: array<int, string>}
     */
    public function normalize(?array $snapshot, string $policyType, ?string $platform = null): array
    {
        $snapshot = is_array($snapshot) ? $snapshot : [];

        $displayName = Arr::get($snapshot, 'displayName') ?? Arr::get($snapshot, 'name');
        $description = Arr::get($snapshot, 'description');

        $settings = [];

        $settings[] = ['key' => 'Type', 'value' => $policyType];

        if (is_string($displayName) && $displayName !== '') {
            $settings[] = ['key' => 'Display name', 'value' => $displayName];
        }

        if (is_string($description) && $description !== '') {
            $settings[] = ['key' => 'Description', 'value' => $description];
        }

        // Script content and large blobs should not dominate normalized output.
        // Keep only safe summary fields if present.
        $contentKeys = [
            'scriptContent',
            'scriptContentBase64',
            'detectionScriptContent',
            'remediationScriptContent',
        ];

        foreach ($contentKeys as $key) {
            $value = Arr::get($snapshot, $key);

            if (is_string($value) && $value !== '') {
                $settings[] = ['key' => $key, 'value' => sprintf('[content: %d chars]', strlen($value))];
            }
        }

        $schedule = Arr::get($snapshot, 'runSchedule');
        if (is_array($schedule) && $schedule !== []) {
            $settings[] = ['key' => 'Run schedule', 'value' => Arr::except($schedule, ['@odata.type'])];
        }

        $frequency = Arr::get($snapshot, 'runFrequency');
        if (is_string($frequency) && $frequency !== '') {
            $settings[] = ['key' => 'Run frequency', 'value' => $frequency];
        }

        $roleScopeTagIds = Arr::get($snapshot, 'roleScopeTagIds');
        if (is_array($roleScopeTagIds) && $roleScopeTagIds !== []) {
            $settings[] = ['key' => 'Scope tag IDs', 'value' => array_values($roleScopeTagIds)];
        }

        return [
            'status' => 'ok',
            'settings' => $settings,
            'warnings' => [],
        ];
    }

    /**
     * @return array<string, mixed>
     */
    public function flattenForDiff(?array $snapshot, string $policyType, ?string $platform = null): array
    {
        $normalized = $this->normalize($snapshot, $policyType, $platform);

        return $this->defaultNormalizer->flattenForDiff($normalized['settings'] ?? []);
    }
}