<?php

declare(strict_types=1);

namespace App\Support\ReviewPacks;

final class ReportProfileRegistry
{
    public const string QUERY_PARAMETER = 'profile';

    public const string CUSTOMER_EXECUTIVE = 'customer_executive';

    public const string CUSTOMER_TECHNICAL = 'customer_technical';

    public const string INTERNAL_MSP_REVIEW = 'internal_msp_review';

    public const string AUDITOR_APPENDIX = 'auditor_appendix';

    public const string FRAMEWORK_READINESS = 'framework_readiness';

    public const string DEFAULT_PROFILE = self::INTERNAL_MSP_REVIEW;

    /**
     * @return array<string, array{
     *   profile_key:string,
     *   label_key:string,
     *   audience_key:string,
     *   implemented:bool,
     *   is_customer_facing:bool,
     *   show_section_appendix:bool,
     *   show_technical_details:bool
     * }>
     */
    public static function all(): array
    {
        return [
            self::CUSTOMER_EXECUTIVE => [
                'profile_key' => self::CUSTOMER_EXECUTIVE,
                'label_key' => 'localization.review.report_profile_customer_executive',
                'audience_key' => 'localization.review.report_audience_customer_executive',
                'implemented' => true,
                'is_customer_facing' => true,
                'show_section_appendix' => false,
                'show_technical_details' => false,
            ],
            self::CUSTOMER_TECHNICAL => [
                'profile_key' => self::CUSTOMER_TECHNICAL,
                'label_key' => 'localization.review.report_profile_customer_technical',
                'audience_key' => 'localization.review.report_audience_customer_technical',
                'implemented' => true,
                'is_customer_facing' => true,
                'show_section_appendix' => true,
                'show_technical_details' => true,
            ],
            self::INTERNAL_MSP_REVIEW => [
                'profile_key' => self::INTERNAL_MSP_REVIEW,
                'label_key' => 'localization.review.report_profile_internal_msp_review',
                'audience_key' => 'localization.review.report_audience_internal_msp_review',
                'implemented' => true,
                'is_customer_facing' => false,
                'show_section_appendix' => true,
                'show_technical_details' => true,
            ],
            self::AUDITOR_APPENDIX => [
                'profile_key' => self::AUDITOR_APPENDIX,
                'label_key' => 'localization.review.report_profile_auditor_appendix',
                'audience_key' => 'localization.review.report_audience_controlled_auditor',
                'implemented' => true,
                'is_customer_facing' => false,
                'show_section_appendix' => true,
                'show_technical_details' => true,
            ],
            self::FRAMEWORK_READINESS => [
                'profile_key' => self::FRAMEWORK_READINESS,
                'label_key' => 'localization.review.report_profile_framework_readiness',
                'audience_key' => 'localization.review.report_audience_internal_msp_review',
                'implemented' => false,
                'is_customer_facing' => false,
                'show_section_appendix' => false,
                'show_technical_details' => false,
            ],
        ];
    }

    /**
     * @return array{
     *   profile_key:string,
     *   requested_key:?string,
     *   effective_key:string,
     *   label_key:string,
     *   label:string,
     *   audience_key:string,
     *   audience_label:string,
     *   implemented:bool,
     *   is_customer_facing:bool,
     *   show_section_appendix:bool,
     *   show_technical_details:bool,
     *   is_fallback:bool,
     *   fallback_reason:?string
     * }
     */
    public static function resolve(?string $requestedKey, ?string $defaultProfileKey = null): array
    {
        $profiles = self::all();
        $normalizedRequestedKey = self::normalizeKey($requestedKey);
        $defaultProfileKey = array_key_exists((string) $defaultProfileKey, $profiles)
            ? (string) $defaultProfileKey
            : self::DEFAULT_PROFILE;

        $effectiveProfile = $profiles[$defaultProfileKey];
        $isFallback = false;
        $fallbackReason = null;

        if ($normalizedRequestedKey !== null) {
            $requestedProfile = $profiles[$normalizedRequestedKey] ?? null;

            if (! is_array($requestedProfile)) {
                $effectiveProfile = $profiles[self::DEFAULT_PROFILE];
                $isFallback = true;
                $fallbackReason = 'unknown_profile';
            } elseif (! (bool) ($requestedProfile['implemented'] ?? false)) {
                $effectiveProfile = $profiles[self::DEFAULT_PROFILE];
                $isFallback = true;
                $fallbackReason = 'unimplemented_profile';
            } else {
                $effectiveProfile = $requestedProfile;
            }
        }

        $effectiveKey = (string) $effectiveProfile['profile_key'];

        return $effectiveProfile + [
            'requested_key' => $normalizedRequestedKey,
            'effective_key' => $effectiveKey,
            'label' => __((string) $effectiveProfile['label_key']),
            'audience_label' => __((string) $effectiveProfile['audience_key']),
            'is_fallback' => $isFallback,
            'fallback_reason' => $fallbackReason,
        ];
    }

    public static function defaultForRenderedReportState(string $state, bool $customerSafeHandoff): string
    {
        if ($state === ReviewPackOutputResolutionGuidance::STATE_CUSTOMER_SAFE_READY) {
            return self::CUSTOMER_EXECUTIVE;
        }

        return self::DEFAULT_PROFILE;
    }

    private static function normalizeKey(?string $requestedKey): ?string
    {
        $requestedKey = trim((string) $requestedKey);

        if ($requestedKey === '') {
            return null;
        }

        return strtolower($requestedKey);
    }
}