<?php

declare(strict_types=1);

namespace Esun\MultiLocaleTranslation\Model;

use Esun\MultiLocaleTranslation\Model\Html\TranslatableTextExtractor;
use Magento\Framework\App\ResourceConnection;

class TranslationLogger
{
    private const TABLE_NAME = 'esun_localetranslation_log';
    private const MAX_LOG_FRAGMENT_BYTES = 30000;

    public function __construct(
        private readonly ResourceConnection $resourceConnection,
        private readonly TranslatableTextExtractor $textExtractor
    ) {
    }

    /**
     * @param array<string, mixed> $fields
     * @param array<string, string> $translations
     */
    public function logSuccess(
        string $provider,
        string $entityType,
        int $entityId,
        int $sourceStoreId,
        int $targetStoreId,
        string $sourceLanguage,
        string $targetLanguage,
        array $fields,
        array $translations,
        string $status = 'success'
    ): void {
        $rows = [];
        foreach ($fields as $fieldName => $field) {
            if (!is_array($field) || !array_key_exists('value', $field)) {
                continue;
            }
            $fieldName = (string)$fieldName;
            if (!array_key_exists($fieldName, $translations)) {
                continue;
            }
            $isHtml = !empty($field['is_html']);
            $sourceText = $this->textForLog((string)$field['value'], $isHtml);
            $translatedText = $this->textForLog((string)$translations[$fieldName], $isHtml);
            $rows[] = $this->buildRow(
                $provider,
                $entityType,
                $entityId,
                $fieldName,
                $sourceStoreId,
                $targetStoreId,
                $sourceLanguage,
                $targetLanguage,
                $sourceText,
                $translatedText,
                $status,
                null
            );
        }

        $this->insertRows($rows);
    }

    /** @param array<string, mixed> $fields */
    public function logFailure(
        string $provider,
        string $entityType,
        int $entityId,
        int $sourceStoreId,
        int $targetStoreId,
        string $sourceLanguage,
        string $targetLanguage,
        array $fields,
        string $errorMessage
    ): void {
        $rows = [];
        foreach ($fields as $fieldName => $field) {
            if (!is_array($field) || !array_key_exists('value', $field)) {
                continue;
            }
            $sourceText = $this->textForLog((string)$field['value'], !empty($field['is_html']));
            $rows[] = $this->buildRow(
                $provider,
                $entityType,
                $entityId,
                (string)$fieldName,
                $sourceStoreId,
                $targetStoreId,
                $sourceLanguage,
                $targetLanguage,
                $sourceText,
                null,
                'failed',
                $errorMessage
            );
        }

        if ($rows === []) {
            $rows[] = $this->buildRow(
                $provider,
                $entityType,
                $entityId,
                '',
                $sourceStoreId,
                $targetStoreId,
                $sourceLanguage,
                $targetLanguage,
                '',
                null,
                'failed',
                $errorMessage
            );
        }

        $this->insertRows($rows);
    }

    private function textForLog(string $value, bool $isHtml): string
    {
        if (!$isHtml || $value === '') {
            return $value;
        }

        $fragments = $this->textExtractor->extract($value, self::MAX_LOG_FRAGMENT_BYTES);

        return trim(implode("\n", array_column($fragments, 'text')));
    }

    /** @return array<string, int|string|null> */
    private function buildRow(
        string $provider,
        string $entityType,
        int $entityId,
        string $fieldName,
        int $sourceStoreId,
        int $targetStoreId,
        string $sourceLanguage,
        string $targetLanguage,
        string $sourceText,
        ?string $translatedText,
        string $status,
        ?string $errorMessage
    ): array {
        return [
            'provider' => substr($provider, 0, 32),
            'entity_type' => $entityType !== '' ? substr($entityType, 0, 32) : null,
            'entity_id' => $entityId > 0 ? $entityId : null,
            'field_name' => $fieldName !== '' ? substr($fieldName, 0, 128) : null,
            'source_store_id' => max(0, $sourceStoreId),
            'target_store_id' => max(0, $targetStoreId),
            'source_language' => $sourceLanguage !== '' ? substr($sourceLanguage, 0, 16) : null,
            'target_language' => $targetLanguage !== '' ? substr($targetLanguage, 0, 16) : null,
            'source_text' => $sourceText,
            'translated_text' => $translatedText,
            'status' => substr($status, 0, 16),
            'error_message' => $errorMessage,
            'character_count' => mb_strlen($sourceText, 'UTF-8'),
        ];
    }

    /** @param array<int, array<string, int|string|null>> $rows */
    private function insertRows(array $rows): void
    {
        if ($rows === []) {
            return;
        }
        $connection = $this->resourceConnection->getConnection();
        $connection->insertMultiple(
            $this->resourceConnection->getTableName(self::TABLE_NAME),
            $rows
        );
    }
}