<?php

/**
 * Simplified AssetUploader - copies EXACT approach from working standalone script
 */
class AssetUploaderSimple
{
    private $apiClient;

    public function __construct($apiClient)
    {
        $this->apiClient = $apiClient;
    }

    public function uploadFile($filePath, $folderId)
    {
        if (!file_exists($filePath)) {
            return [
                'success' => false,
                'error' => 'File not found',
                'filename' => basename($filePath)
            ];
        }

        $filename = basename($filePath);
        $mimeType = mime_content_type($filePath);

        // Get base URL
        $baseUrlReflection = new ReflectionProperty($this->apiClient, 'baseUrl');
        $baseUrlReflection->setAccessible(true);
        $baseUrl = $baseUrlReflection->getValue($this->apiClient);
        $url = rtrim($baseUrl, '/') . '/v6/assets';

        // Get auth header
        $headersReflection = new ReflectionProperty($this->apiClient, 'headers');
        $headersReflection->setAccessible(true);
        $headers = $headersReflection->getValue($this->apiClient);
        $authHeader = $headers['Authorization'] ?? '';

        // EXACT structure from working standalone (SIMPLIFIED - only 5 fields)
        $assetRep = [
            'asset_resource' => [
                'asset' => [
                    'metadata' => [
                        'metadata_element_list' => [
                            [
                                'id' => 'FERRERO.FIELD.MKTG.ASSET TYPE',
                                'type' => 'com.artesia.metadata.MetadataField',
                                'value' => [
                                    'cascading_domain_value' => false,
                                    'domain_value' => true,
                                    'value' => [
                                        'type' => 'string',
                                        'value' => 'heroimage'
                                    ]
                                ]
                            ],
                            [
                                'id' => 'FERRERO.FIELD.FISCAL YEAR',
                                'type' => 'com.artesia.metadata.MetadataField',
                                'value' => [
                                    'cascading_domain_value' => false,
                                    'domain_value' => true,
                                    'value' => [
                                        'type' => 'string',
                                        'value' => '2025/2026'
                                    ]
                                ]
                            ],
                            [
                                'id' => 'MAIN_LANGUAGES',
                                'parent_table_id' => 'FERRERO.TABULAR.FIELD.MAIN LANGUAGES',
                                'type' => 'com.artesia.metadata.MetadataTableField',
                                'values' => [
                                    [
                                        'cascading_domain_value' => false,
                                        'domain_value' => true,
                                        'value' => [
                                            'field_value' => [
                                                'type' => 'string',
                                                'value' => 'IT'
                                            ],
                                            'type' => 'com.artesia.metadata.DomainValue'
                                        ]
                                    ]
                                ]
                            ],
                            [
                                'id' => 'ARTESIA.FIELD.ASSET NAME',
                                'type' => 'com.artesia.metadata.MetadataField',
                                'value' => [
                                    'cascading_domain_value' => false,
                                    'domain_value' => true,
                                    'value' => [
                                        'type' => 'string',
                                        'value' => $filename
                                    ]
                                ]
                            ],
                            [
                                'id' => 'FERRERO.FIELD.STATE',
                                'type' => 'com.artesia.metadata.MetadataField',
                                'value' => [
                                    'cascading_domain_value' => false,
                                    'domain_value' => true,
                                    'value' => [
                                        'type' => 'string',
                                        'value' => 'Local'
                                    ]
                                ]
                            ]
                        ]
                    ],
                    'metadata_model_id' => 'ECOMMERCE',
                    'security_policy_list' => [
                        ['id' => 1594]
                    ]
                ]
            ]
        ];

        $uploadManifest = [
            'upload_manifest' => [
                'master_files' => [
                    [
                        'file' => [
                            'file_name' => $filename,
                            'file_type' => $mimeType
                        ]
                    ]
                ]
            ]
        ];

        $postFields = [
            'asset_representation' => json_encode($assetRep),
            'parent_folder_id' => $folderId,
            'manifest' => json_encode($uploadManifest),
            'files' => new \CURLFile($filePath, $mimeType, $filename)
        ];

        error_log("SIMPLE UPLOADER: Asset Rep size: " . strlen(json_encode($assetRep)));
        error_log("SIMPLE UPLOADER: Manifest size: " . strlen(json_encode($uploadManifest)));

        $cookieFile = sys_get_temp_dir() . '/ferrero_upload_cookies.txt';

        $ch = curl_init();
        curl_setopt_array($ch, [
            CURLOPT_URL => $url,
            CURLOPT_RETURNTRANSFER => true,
            CURLOPT_POST => true,
            CURLOPT_POSTFIELDS => $postFields,
            CURLOPT_HTTPHEADER => [
                'Accept: application/json',
                'Authorization: Bearer ' . str_replace('Bearer ', '', $authHeader)
            ],
            CURLOPT_SSL_VERIFYPEER => false,
            CURLOPT_TIMEOUT => 60,
            CURLOPT_COOKIEJAR => $cookieFile,
            CURLOPT_COOKIEFILE => $cookieFile
        ]);

        $response = curl_exec($ch);
        $httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
        $curlError = curl_error($ch);
        curl_close($ch);

        if ($curlError) {
            return [
                'success' => false,
                'filename' => $filename,
                'error' => 'CURL error: ' . $curlError,
                'http_code' => 0
            ];
        }

        if ($httpCode == 201 || $httpCode == 202) {
            $responseData = json_decode($response, true);
            return [
                'success' => true,
                'asset_id' => $responseData['asset_resource_list']['asset_resource'][0]['asset']['asset_id'] ??
                             $responseData['job_handle']['job_id'] ?? null,
                'filename' => $filename,
                'http_code' => $httpCode
            ];
        }

        // Extract error
        $errorMsg = 'Upload failed';
        if (!empty($response)) {
            $responseData = json_decode($response, true);
            if ($responseData && isset($responseData['exception_body'])) {
                $errorMsg = $responseData['exception_body']['message'] ?? 'API Error';
            }
        }

        return [
            'success' => false,
            'filename' => $filename,
            'error' => $errorMsg,
            'http_code' => $httpCode,
            'response_body' => substr($response ?? '', 0, 1000)
        ];
    }
}