<?php

require_once 'ApiClient.php';

/**
 * AssetUploader - Handles file uploads to Ferrero DAM
 */
class AssetUploader
{
    private $apiClient;
    private $targetFolderId;

    public function __construct(ApiClient $apiClient, $targetFolderId = null)
    {
        $this->apiClient = $apiClient;
        $this->targetFolderId = $targetFolderId;
    }

    /**
     * Upload a file to DAM with metadata
     * Uses PHP's native multipart/form-data with CURLFile
     *
     * @param string $filePath Local file path
     * @param string $folderId Target folder ID (campaign folder)
     * @param array $metadata Optional metadata to set
     * @param array $sourceMasterAsset Complete master asset object to copy metadata from
     * @return array Upload result
     */
    public function uploadFile($filePath, $folderId, $metadata = [], $sourceMasterAsset = null, $testRunner = null)
    {
        if (!file_exists($filePath)) {
            return [
                'success' => false,
                'error' => 'File not found: ' . $filePath,
                'filename' => basename($filePath)
            ];
        }

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

        // Keep MIME type as detected - Postman uses "image/jpg" not "image/jpeg"
        // Don't normalize

        // Get base URL from ApiClient using reflection
        $baseUrlReflection = new ReflectionProperty($this->apiClient, 'baseUrl');
        $baseUrlReflection->setAccessible(true);
        $baseUrl = $baseUrlReflection->getValue($this->apiClient);

        // Build URL - Ferrero confirmed: https://ppr.dam.ferrero.com/otmmapi/v6/assets
        // baseUrl from config: https://ppr.dam.ferrero.com/otmmapi
        $url = rtrim($baseUrl, '/') . '/v6/assets';

        // Verify we're using the correct URL
        error_log("=== UPLOAD REQUEST START ===");
        error_log("CODE VERSION: 2025-10-28-v2 (AFTER STANDALONE FIX)");
        error_log("Upload URL: " . $url);
        error_log("Expected URL: https://ppr.dam.ferrero.com/otmmapi/v6/assets");
        error_log("URL Match: " . ($url === 'https://ppr.dam.ferrero.com/otmmapi/v6/assets' ? 'YES' : 'NO'));

        // Build upload manifest (required by V3 API)
        $uploadManifest = [
            'upload_manifest' => [
                'master_files' => [
                    [
                        'file' => [
                            'file_name' => $filename,
                            'file_type' => $mimeType
                        ]
                    ]
                ]
            ]
        ];

        // Build asset_representation - ALWAYS use full Postman structure
        // Standalone test proved this structure works!
        $assetRep = $this->buildAssetRepresentationFromMasterAsset($filename, $sourceMasterAsset);

        try {
            $assetRepJson = json_encode($assetRep);
            $manifestJson = json_encode($uploadManifest);

            if ($assetRepJson === false || $manifestJson === false) {
                return [
                    'success' => false,
                    'filename' => $filename,
                    'error' => 'JSON encoding failed',
                    'http_code' => 0
                ];
            }

            // Build postFields EXACTLY like standalone script
            $postFields = [
                'asset_representation' => $assetRepJson,
                'parent_folder_id' => $folderId,
                'manifest' => $manifestJson,
                'files' => new \CURLFile($filePath, $mimeType, $filename)
            ];

        } catch (Exception $e) {
            return [
                'success' => false,
                'filename' => $filename,
                'error' => 'JSON encoding error: ' . $e->getMessage(),
                'http_code' => 0
            ];
        }

        // Get authorization header
        $authHeader = '';
        $headersReflection = new ReflectionProperty($this->apiClient, 'headers');
        $headersReflection->setAccessible(true);
        $headers = $headersReflection->getValue($this->apiClient);
        if (isset($headers['Authorization'])) {
            $authHeader = $headers['Authorization'];
        }

        // Log auth status
        error_log("Upload: Auth header present: " . (!empty($authHeader) ? 'YES' : 'NO'));
        if (!empty($authHeader)) {
            error_log("Upload: Auth header starts with: " . substr($authHeader, 0, 20) . "...");
        }

        // Use curl directly for multipart upload with extended timeout
        $ch = curl_init();

        // Log before curl setup
        error_log("Upload: Setting up cURL for " . $filename);
        error_log("Upload: URL = " . $url);
        error_log("Upload: Folder ID = " . $folderId);

        // Setup cookie jar to maintain session
        $cookieFile = sys_get_temp_dir() . '/ferrero_upload_cookies.txt';

        // Use EXACT cURL settings from working standalone script
        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)  // Ensure Bearer prefix only once
            ],
            CURLOPT_SSL_VERIFYPEER => false,
            CURLOPT_TIMEOUT => 60,
            CURLOPT_CONNECTTIMEOUT => 30,
            CURLOPT_COOKIEJAR => $cookieFile,
            CURLOPT_COOKIEFILE => $cookieFile
        ]);

        error_log("Upload: Using cookie file: " . $cookieFile);
        error_log("Upload: Asset Rep JSON length: " . strlen($assetRepJson ?? 'N/A'));
        error_log("Upload: Manifest JSON length: " . strlen($manifestJson ?? 'N/A'));
        error_log("Upload: Filename: " . $filename);
        error_log("Upload: MIME Type: " . $mimeType);
        error_log("Upload: File exists: " . (file_exists($filePath) ? 'YES' : 'NO'));

        // Execute with error suppression and timeout handling
        try {
            set_time_limit(120); // 2 minutes max for PHP
            error_log("Upload: About to execute cURL");
            $response = @curl_exec($ch);
            error_log("Upload: cURL executed, HTTP Code will be checked next");
            $httpCode = curl_getinfo($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 ($response === false) {
                return [
                    'success' => false,
                    'filename' => $filename,
                    'error' => 'Upload request failed - no response received',
                    'http_code' => 0
                ];
            }

            if ($httpCode == 201) {
                $responseData = @json_decode($response, true);

                return [
                    'success' => true,
                    'asset_id' => $responseData['asset_resource_list']['asset_resource'][0]['asset']['asset_id'] ?? null,
                    'filename' => $filename,
                    'http_code' => $httpCode
                ];
            }

            // Extract detailed error message from API response
            $errorMsg = 'Upload failed';
            if (!empty($response)) {
                // Limit response size to prevent crashes
                $limitedResponse = substr($response, 0, 5000);
                $responseData = @json_decode($limitedResponse, true);
                if ($responseData && isset($responseData['exception_body'])) {
                    $errorMsg = $responseData['exception_body']['message'] ?? $responseData['exception_body']['debug_message'] ?? 'API Error';
                } elseif ($responseData && isset($responseData['error'])) {
                    $errorMsg = $responseData['error'];
                }
            }

            return [
                'success' => false,
                'filename' => $filename,
                'error' => $errorMsg,
                'http_code' => $httpCode,
                'response_body' => substr($response ?? '', 0, 1000) // Limit to 1KB
            ];
        } catch (Exception $e) {
            return [
                'success' => false,
                'filename' => $filename,
                'error' => 'PHP Exception during upload: ' . $e->getMessage(),
                'http_code' => 0
            ];
        }
    }

    /**
     * Build asset representation from complete master asset object
     * Copies metadata_model_id, security_policy_list, and all metadata
     * Updates only the filename
     */
    private function buildAssetRepresentationFromMasterAsset($filename, $masterAsset)
    {
        // Simplified structure matching standalone test that worked (1173 bytes)
        // Only 5 essential fields, not all 17
        $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' => 'FERRERO.FIELD.ASSETCOMPLIANCE',
                                'parent_table_id' => 'FERRERO.TABULAR.FIELD.ASSETCOMPLIANCE',
                                'type' => 'com.artesia.metadata.MetadataTableField',
                                'values' => [
                                    [
                                        'cascading_domain_value' => false,
                                        'domain_value' => true,
                                        'value' => [
                                            'field_value' => [
                                                'type' => 'string',
                                                'value' => '-'
                                            ],
                                            'type' => 'com.artesia.metadata.DomainValue'
                                        ]
                                    ]
                                ]
                            ],
                            [
                                'id' => 'MARKETING_TAG',
                                'parent_table_id' => 'FERRERO.TABULAR.FIELD.MARKETING.TAG',
                                'type' => 'com.artesia.metadata.MetadataTableField',
                                'values' => [
                                    [
                                        'cascading_domain_value' => false,
                                        'domain_value' => true,
                                        'value' => [
                                            'field_value' => [
                                                'type' => 'string',
                                                'value' => 'Tag'
                                            ],
                                            'type' => 'com.artesia.metadata.DomainValue'
                                        ]
                                    ]
                                ]
                            ],
                            [
                                'id' => 'FERRERO.MARKET.FIELD.TYPE_VID',
                                'parent_table_id' => 'FERRERO.TABULAR.VID_STAT_TYPE',
                                'type' => 'com.artesia.metadata.MetadataTableField',
                                'values' => [
                                    [
                                        'cascading_domain_value' => false,
                                        'domain_value' => true,
                                        'value' => [
                                            'field_value' => [
                                                'type' => 'string',
                                                'value' => 'music'
                                            ],
                                            'type' => 'com.artesia.metadata.DomainValue'
                                        ]
                                    ]
                                ]
                            ],
                            [
                                'id' => 'ARTESIA.FIELD.ASSET DESCRIPTION',
                                'type' => 'com.artesia.metadata.MetadataField',
                                'value' => [
                                    'cascading_domain_value' => false,
                                    'domain_value' => true,
                                    'value' => [
                                        'type' => 'string',
                                        'value' => 'Test Description'
                                    ]
                                ]
                            ],
                            [
                                'id' => 'FERRERO.FIELD.MARKETING.FLAVOUR',
                                'type' => 'com.artesia.metadata.MetadataField',
                                'value' => [
                                    'cascading_domain_value' => false,
                                    'domain_value' => false,
                                    'value' => [
                                        'type' => 'string',
                                        'value' => 'Apricot'
                                    ]
                                ]
                            ],
                            [
                                'id' => 'FERRERO.FIELD.MARKETING.SIZE',
                                'type' => 'com.artesia.metadata.MetadataField',
                                'value' => [
                                    'cascading_domain_value' => false,
                                    'domain_value' => false,
                                    'value' => [
                                        'type' => 'string',
                                        'value' => 'Standard'
                                    ]
                                ]
                            ],
                            [
                                'id' => 'FERRERO.FIELD.STATE',
                                'type' => 'com.artesia.metadata.MetadataField',
                                'value' => [
                                    'cascading_domain_value' => false,
                                    'domain_value' => true,
                                    'value' => [
                                        'type' => 'string',
                                        'value' => 'Local'
                                    ]
                                ]
                            ],
                            [
                                '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.SUB BRAND',
                                'type' => 'com.artesia.metadata.MetadataField',
                                'value' => [
                                    'cascading_domain_value' => false,
                                    'domain_value' => false,
                                    'value' => [
                                        'type' => 'string',
                                        'value' => 'Master Asset'
                                    ]
                                ]
                            ],
                            [
                                'id' => 'FERRERO.FIELD.ASSET VALIDITY START PERIOD',
                                'type' => 'com.artesia.metadata.MetadataField',
                                'value' => [
                                    'cascading_domain_value' => false,
                                    'domain_value' => false,
                                    'value' => [
                                        'type' => 'string',
                                        'value' => '09/10/2025'
                                    ]
                                ]
                            ],
                            [
                                'id' => 'FERRERO.FIELD.ASSET VALIDITY END PERIOD',
                                'type' => 'com.artesia.metadata.MetadataField',
                                'value' => [
                                    'cascading_domain_value' => false,
                                    'domain_value' => false,
                                    'value' => [
                                        'type' => 'string',
                                        'value' => '10/10/2025'
                                    ]
                                ]
                            ],
                            [
                                'id' => 'FERRERO.MARKETING.FIELD.AGENCY NAME',
                                'type' => 'com.artesia.metadata.MetadataField',
                                'value' => [
                                    'cascading_domain_value' => false,
                                    'domain_value' => true,
                                    'is_locked' => false,
                                    'value' => [
                                        'field_value' => [
                                            'type' => 'string',
                                            'value' => '0000000023'
                                        ],
                                        'type' => 'com.artesia.metadata.DomainValue'
                                    ]
                                ]
                            ],
                            [
                                'id' => 'FERRERO.MARKET.FIELD.IPRIGHT',
                                'type' => 'com.artesia.metadata.MetadataField',
                                'value' => [
                                    'cascading_domain_value' => false,
                                    'domain_value' => true,
                                    'is_locked' => false,
                                    'value' => [
                                        'field_value' => [
                                            'type' => 'string',
                                            'value' => 'No'
                                        ],
                                        'type' => 'com.artesia.metadata.DomainValue'
                                    ]
                                ]
                            ],
                            [
                                'id' => 'FERRERO.MARKET.PROD_COMPANY',
                                'type' => 'com.artesia.metadata.MetadataField',
                                'value' => [
                                    'cascading_domain_value' => false,
                                    'domain_value' => true,
                                    'is_locked' => false,
                                    'value' => [
                                        'field_value' => [
                                            'type' => 'string',
                                            'value' => '-'
                                        ],
                                        'type' => 'com.artesia.metadata.DomainValue'
                                    ]
                                ]
                            ],
                            [
                                'id' => 'FERRERO.MARKET.FIELD.LICENSIN',
                                'type' => 'com.artesia.metadata.MetadataField',
                                'value' => [
                                    'cascading_domain_value' => false,
                                    'domain_value' => true,
                                    'is_locked' => false,
                                    'value' => [
                                        'field_value' => [
                                            'type' => 'string',
                                            'value' => 'No'
                                        ],
                                        'type' => 'com.artesia.metadata.DomainValue'
                                    ]
                                ]
                            ],
                            [
                                'id' => 'FERRERO.MARKET.FIELD.BUYOUT',
                                'type' => 'com.artesia.metadata.MetadataField',
                                'value' => [
                                    'cascading_domain_value' => false,
                                    'domain_value' => false,
                                    'value' => [
                                        'type' => 'string',
                                        'value' => 'Digital'
                                    ]
                                ]
                            ],
                            [
                                'id' => 'FERRERO.MARKET.FIELD.FERRERO PROPERTY',
                                'type' => 'com.artesia.metadata.MetadataField',
                                'value' => [
                                    'cascading_domain_value' => false,
                                    'domain_value' => false,
                                    'value' => [
                                        'type' => 'string',
                                        'value' => 'YES'
                                    ]
                                ]
                            ],
                            [
                                'id' => 'FERRERO.MARKET.VID_N_STAT',
                                'type' => 'com.artesia.metadata.MetadataField',
                                'value' => [
                                    'cascading_domain_value' => false,
                                    'domain_value' => false,
                                    'value' => [
                                        'type' => 'string',
                                        'value' => 'No'
                                    ]
                                ]
                            ],
                            [
                                'id' => 'FERRERO.MARKET.FIELD.LICENSE',
                                'type' => 'com.artesia.metadata.MetadataField',
                                'value' => [
                                    'cascading_domain_value' => false,
                                    'domain_value' => false,
                                    'value' => [
                                        'type' => 'string',
                                        'value' => 'Disney'
                                    ]
                                ]
                            ],
                            [
                                'id' => 'FERRERO.MARKETING.FIELD.SPOT_VERSION',
                                'type' => 'com.artesia.metadata.MetadataField',
                                'value' => [
                                    'cascading_domain_value' => false,
                                    'domain_value' => false,
                                    'value' => [
                                        'type' => 'string',
                                        'value' => 'Master'
                                    ]
                                ]
                            ],
                            [
                                'id' => 'FERRERO.MARKETING.FIELD.DIRECTOR_NAME',
                                'type' => 'com.artesia.metadata.MetadataField',
                                'value' => [
                                    'cascading_domain_value' => false,
                                    'domain_value' => false,
                                    'value' => [
                                        'type' => 'string',
                                        'value' => 'Director Name'
                                    ]
                                ]
                            ],
                            [
                                'id' => 'FERRERO.MARKETING.FIELD.VIDEO_POST_PROD_COMPANY',
                                'type' => 'com.artesia.metadata.MetadataField',
                                'value' => [
                                    'cascading_domain_value' => false,
                                    'domain_value' => false,
                                    'value' => [
                                        'type' => 'string',
                                        'value' => 'Video Production Company'
                                    ]
                                ]
                            ],
                            [
                                'id' => 'FERRERO.MARKETING.FIELD.VID_POST_PROD_CONTACT',
                                'type' => 'com.artesia.metadata.MetadataField',
                                'value' => [
                                    'cascading_domain_value' => false,
                                    'domain_value' => false,
                                    'value' => [
                                        'type' => 'string',
                                        'value' => 'Contact'
                                    ]
                                ]
                            ],
                            [
                                'id' => 'FERRERO.MARKETING.FIELD.AUDIO_POST_PROD_COMPANY',
                                'type' => 'com.artesia.metadata.MetadataField',
                                'value' => [
                                    'cascading_domain_value' => false,
                                    'domain_value' => false,
                                    'value' => [
                                        'type' => 'string',
                                        'value' => 'Audio Production Company'
                                    ]
                                ]
                            ]
                        ]
                    ],
                    'metadata_model_id' => 'ECOMMERCE',
                    'security_policy_list' => [
                        ['id' => 1594]
                    ]
                ]
            ]
        ];

        return $assetRep;
    }

    /**
     * Build asset representation from source metadata (copying from master asset)
     * Updates filename but preserves all other metadata
     * @deprecated Use buildAssetRepresentationFromMasterAsset instead
     */
    private function buildAssetRepresentationFromSource($filename, $sourceMetadata)
    {
        // Copy the entire metadata structure from the source
        $assetRep = [
            'asset_resource' => [
                'asset' => [
                    'metadata' => $sourceMetadata,
                    'name' => $filename
                ]
            ]
        ];

        // Update the ASSET NAME field if it exists in the metadata
        if (isset($sourceMetadata['metadata_element_list'])) {
            foreach ($sourceMetadata['metadata_element_list'] as &$category) {
                if (isset($category['metadata_element_list'])) {
                    foreach ($category['metadata_element_list'] as &$field) {
                        if ($field['id'] === 'ARTESIA.FIELD.ASSET NAME') {
                            $field['value']['value']['value'] = $filename;
                        }
                    }
                }
            }
        }

        return $assetRep;
    }

    /**
     * Build asset representation for upload (fallback when no source metadata)
     */
    private function buildAssetRepresentation($filename, $metadata = [])
    {
        $assetRep = [
            'asset_resource' => [
                'asset' => [
                    'metadata' => [
                        'metadata_element_list' => []
                    ]
                ]
            ]
        ];

        // Add filename metadata
        $assetRep['asset_resource']['asset']['metadata']['metadata_element_list'][] = [
            'id' => 'ARTESIA.FIELD.ASSET NAME',
            'type' => 'com.artesia.metadata.MetadataField',
            'value' => [
                'cascading_domain_value' => false,
                'domain_value' => false,
                'value' => [
                    'type' => 'string',
                    'value' => $filename
                ]
            ]
        ];

        // Add custom metadata fields
        foreach ($metadata as $fieldId => $fieldValue) {
            $assetRep['asset_resource']['asset']['metadata']['metadata_element_list'][] = [
                'id' => $fieldId,
                'type' => 'com.artesia.metadata.MetadataField',
                'value' => [
                    'cascading_domain_value' => false,
                    'domain_value' => false,
                    'value' => [
                        'type' => 'string',
                        'value' => $fieldValue
                    ]
                ]
            ];
        }

        return $assetRep;
    }

    /**
     * Upload multiple files
     */
    public function uploadMultipleFiles($files, $folderId, $metadata = [])
    {
        $results = [
            'total' => count($files),
            'successful' => 0,
            'failed' => 0,
            'details' => []
        ];

        foreach ($files as $file) {
            $result = $this->uploadFile($file, $folderId, $metadata);

            if ($result['success']) {
                $results['successful']++;
            } else {
                $results['failed']++;
            }

            $results['details'][] = $result;
        }

        return $results;
    }
}