<?php

declare(strict_types=1);

namespace App\Support\RestoreSafety;

use Illuminate\Support\Str;

final class RestoreSafetyCopy
{
    public static function safetyStateLabel(?string $state): string
    {
        return match ($state) {
            RestoreSafetyAssessment::STATE_BLOCKED => 'Blocked',
            RestoreSafetyAssessment::STATE_RISKY => 'Risky',
            RestoreSafetyAssessment::STATE_READY_WITH_CAUTION => 'Ready with caution',
            RestoreSafetyAssessment::STATE_READY => 'Ready',
            default => self::headline($state, 'Unknown state'),
        };
    }

    public static function primaryNextAction(?string $action): string
    {
        return match ($action) {
            'resolve_blockers' => 'Resolve the technical blockers before real execution.',
            'generate_preview' => 'Generate a preview for the current scope.',
            'regenerate_preview' => 'Regenerate the preview for the current scope.',
            'rerun_checks' => 'Run the safety checks again for the current scope.',
            'review_warnings' => 'Review the warnings before real execution.',
            'execute' => 'Queue the real restore execution.',
            'review_preview' => 'Review the preview evidence before claiming recovery or queueing execution.',
            'review_failures' => 'Review failed items and provider errors before retrying.',
            'review_partial_items' => 'Review partial items and incomplete assignments before retrying.',
            'review_skipped_items' => 'Review skipped or non-applied items before closing the run.',
            'review_result' => 'Review the completed restore details.',
            'adjust_scope' => 'Adjust the restore scope, then refresh preview and checks.',
            'review_scope' => 'Review the current scope and safety evidence.',
            default => self::sentence($action, 'Review the current scope and safety evidence.'),
        };
    }

    public static function primaryCauseFamily(?string $family): string
    {
        return match ($family) {
            'none' => 'No dominant cause recorded',
            'execution_failure' => 'Execution failure',
            'write_gate_or_rbac' => 'RBAC or write gate',
            'provider_operability' => 'Provider operability',
            'missing_dependency_or_mapping' => 'Missing dependency or mapping',
            'payload_quality' => 'Payload quality',
            'scope_mismatch' => 'Scope mismatch',
            'item_level_failure' => 'Item-level failure',
            default => self::headline($family, 'Unknown cause'),
        };
    }

    public static function recoveryBoundary(?string $boundary): string
    {
        return match ($boundary) {
            'preview_only_no_execution_proven' => 'No execution was performed from this record.',
            'execution_failed_no_recovery_claim' => 'Tenant recovery is not proven.',
            'run_completed_not_recovery_proven' => 'Tenant-wide recovery is not proven.',
            default => 'Tenant-wide recovery is not proven.',
        };
    }

    private static function headline(?string $value, string $fallback): string
    {
        if (! is_string($value) || trim($value) === '') {
            return $fallback;
        }

        return Str::headline(trim($value));
    }

    private static function sentence(?string $value, string $fallback): string
    {
        if (! is_string($value) || trim($value) === '') {
            return $fallback;
        }

        $sentence = Str::headline(trim($value));

        return str_ends_with($sentence, '.') ? $sentence : $sentence.'.';
    }
}