"use strict";
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var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.isMinioEnabled = isMinioEnabled;
exports.initializeMinio = initializeMinio;
exports.uploadImageFromUrl = uploadImageFromUrl;
exports.getImageUrl = getImageUrl;
exports.deleteImage = deleteImage;
exports.minioClient = getMinioClient;
const Minio = __importStar(require("minio"));
const axios_1 = __importDefault(require("axios"));
const uuid_1 = require("uuid");
const sharp_1 = __importDefault(require("sharp"));
const fs = __importStar(require("fs/promises"));
const path = __importStar(require("path"));
let minioClient = null;
// Check if MinIO is configured
function isMinioEnabled() {
    return !!process.env.MINIO_ENDPOINT;
}
// Local storage path for images when MinIO is not configured
const LOCAL_IMAGES_PATH = process.env.LOCAL_IMAGES_PATH || '/app/public/images';
function getMinioClient() {
    if (!minioClient) {
        minioClient = new Minio.Client({
            endPoint: process.env.MINIO_ENDPOINT || 'minio',
            port: parseInt(process.env.MINIO_PORT || '9000'),
            useSSL: process.env.MINIO_USE_SSL === 'true',
            accessKey: process.env.MINIO_ACCESS_KEY || 'minioadmin',
            secretKey: process.env.MINIO_SECRET_KEY || 'minioadmin',
        });
    }
    return minioClient;
}
const BUCKET_NAME = process.env.MINIO_BUCKET || 'dutchie';
async function initializeMinio() {
    // Skip MinIO initialization if not configured
    if (!isMinioEnabled()) {
        console.log('ℹ️  MinIO not configured (MINIO_ENDPOINT not set), using local filesystem storage');
        // Ensure local images directory exists
        try {
            await fs.mkdir(LOCAL_IMAGES_PATH, { recursive: true });
            await fs.mkdir(path.join(LOCAL_IMAGES_PATH, 'products'), { recursive: true });
            console.log(`✅ Local images directory ready: ${LOCAL_IMAGES_PATH}`);
        }
        catch (error) {
            console.error('❌ Failed to create local images directory:', error);
            throw error;
        }
        return;
    }
    try {
        const client = getMinioClient();
        // Check if bucket exists
        const exists = await client.bucketExists(BUCKET_NAME);
        if (!exists) {
            // Create bucket
            await client.makeBucket(BUCKET_NAME, 'us-east-1');
            console.log(`✅ Minio bucket created: ${BUCKET_NAME}`);
            // Set public read policy
            const policy = {
                Version: '2012-10-17',
                Statement: [
                    {
                        Effect: 'Allow',
                        Principal: { AWS: ['*'] },
                        Action: ['s3:GetObject'],
                        Resource: [`arn:aws:s3:::${BUCKET_NAME}/*`],
                    },
                ],
            };
            await client.setBucketPolicy(BUCKET_NAME, JSON.stringify(policy));
            console.log(`✅ Bucket policy set to public read`);
        }
        else {
            console.log(`✅ Minio bucket already exists: ${BUCKET_NAME}`);
        }
    }
    catch (error) {
        console.error('❌ Minio initialization error:', error);
        throw error;
    }
}
async function removeBackground(buffer) {
    try {
        // Get image metadata to check if it has an alpha channel
        const metadata = await (0, sharp_1.default)(buffer).metadata();
        // If image already has transparency, trim and optimize it
        if (metadata.hasAlpha) {
            return await (0, sharp_1.default)(buffer)
                .trim() // Remove transparent borders
                .toBuffer();
        }
        // For images without alpha (like JPEGs with solid backgrounds),
        // we'll use a threshold-based approach to detect and remove solid backgrounds
        // This works well for product images on solid color backgrounds
        // Convert to PNG with alpha channel, then flatten with transparency
        const withAlpha = await (0, sharp_1.default)(buffer)
            .ensureAlpha() // Add alpha channel
            .toBuffer();
        // Use threshold to make similar colors transparent (targets solid backgrounds)
        // This is a simple approach - for better results, use remove.bg API or ML models
        return await (0, sharp_1.default)(withAlpha)
            .flatten({ background: { r: 0, g: 0, b: 0, alpha: 0 } })
            .trim()
            .toBuffer();
    }
    catch (error) {
        console.warn('Background removal failed, using original image:', error);
        return buffer;
    }
}
async function uploadToLocalFilesystem(thumbnailBuffer, mediumBuffer, fullBuffer, baseFilename) {
    const thumbnailPath = `${baseFilename}-thumb.png`;
    const mediumPath = `${baseFilename}-medium.png`;
    const fullPath = `${baseFilename}-full.png`;
    // Ensure the target directory exists (in case initializeMinio wasn't called)
    // Extract directory from baseFilename (e.g., 'products/store-slug' or just 'products')
    const targetDir = path.join(LOCAL_IMAGES_PATH, path.dirname(baseFilename));
    await fs.mkdir(targetDir, { recursive: true });
    await Promise.all([
        fs.writeFile(path.join(LOCAL_IMAGES_PATH, thumbnailPath), thumbnailBuffer),
        fs.writeFile(path.join(LOCAL_IMAGES_PATH, mediumPath), mediumBuffer),
        fs.writeFile(path.join(LOCAL_IMAGES_PATH, fullPath), fullBuffer),
    ]);
    return {
        thumbnail: thumbnailPath,
        medium: mediumPath,
        full: fullPath,
    };
}
async function uploadToMinio(thumbnailBuffer, mediumBuffer, fullBuffer, baseFilename) {
    const client = getMinioClient();
    const thumbnailPath = `${baseFilename}-thumb.png`;
    const mediumPath = `${baseFilename}-medium.png`;
    const fullPath = `${baseFilename}-full.png`;
    await Promise.all([
        client.putObject(BUCKET_NAME, thumbnailPath, thumbnailBuffer, thumbnailBuffer.length, {
            'Content-Type': 'image/png',
        }),
        client.putObject(BUCKET_NAME, mediumPath, mediumBuffer, mediumBuffer.length, {
            'Content-Type': 'image/png',
        }),
        client.putObject(BUCKET_NAME, fullPath, fullBuffer, fullBuffer.length, {
            'Content-Type': 'image/png',
        }),
    ]);
    return {
        thumbnail: thumbnailPath,
        medium: mediumPath,
        full: fullPath,
    };
}
async function uploadImageFromUrl(imageUrl, productId, storeSlug, removeBackgrounds = true) {
    try {
        // Download image
        const response = await axios_1.default.get(imageUrl, { responseType: 'arraybuffer' });
        let buffer = Buffer.from(response.data);
        // Remove background if enabled
        if (removeBackgrounds) {
            buffer = await removeBackground(buffer);
        }
        // Generate unique base filename - organize by store if slug provided
        const storeDir = storeSlug ? `products/${storeSlug}` : 'products';
        const baseFilename = `${storeDir}/${productId}-${(0, uuid_1.v4)()}`;
        // Create multiple sizes with Sharp and convert to WebP/PNG for better compression
        // Use PNG for images with transparency
        const [thumbnailBuffer, mediumBuffer, fullBuffer] = await Promise.all([
            // Thumbnail: 300x300
            (0, sharp_1.default)(buffer)
                .resize(300, 300, { fit: 'inside', background: { r: 0, g: 0, b: 0, alpha: 0 } })
                .png({ quality: 80, compressionLevel: 9 })
                .toBuffer(),
            // Medium: 800x800
            (0, sharp_1.default)(buffer)
                .resize(800, 800, { fit: 'inside', background: { r: 0, g: 0, b: 0, alpha: 0 } })
                .png({ quality: 85, compressionLevel: 9 })
                .toBuffer(),
            // Full: 2000x2000 (optimized)
            (0, sharp_1.default)(buffer)
                .resize(2000, 2000, { fit: 'inside', withoutEnlargement: true, background: { r: 0, g: 0, b: 0, alpha: 0 } })
                .png({ quality: 90, compressionLevel: 9 })
                .toBuffer(),
        ]);
        // Upload to appropriate storage backend
        let result;
        if (isMinioEnabled()) {
            result = await uploadToMinio(thumbnailBuffer, mediumBuffer, fullBuffer, baseFilename);
        }
        else {
            result = await uploadToLocalFilesystem(thumbnailBuffer, mediumBuffer, fullBuffer, baseFilename);
        }
        console.log(`✅ Uploaded 3 sizes for product ${productId}: ${thumbnailBuffer.length + mediumBuffer.length + fullBuffer.length} bytes total`);
        return result;
    }
    catch (error) {
        console.error('Error uploading image:', error);
        throw error;
    }
}
function getImageUrl(imagePath) {
    if (isMinioEnabled()) {
        // Use MinIO endpoint for browser access
        const endpoint = process.env.MINIO_PUBLIC_ENDPOINT || 'http://localhost:9020';
        return `${endpoint}/${BUCKET_NAME}/${imagePath}`;
    }
    else {
        // Use local path - served via Express static middleware
        const publicUrl = process.env.PUBLIC_URL || '';
        return `${publicUrl}/images/${imagePath}`;
    }
}
async function deleteImage(imagePath) {
    try {
        if (isMinioEnabled()) {
            const client = getMinioClient();
            await client.removeObject(BUCKET_NAME, imagePath);
        }
        else {
            const fullPath = path.join(LOCAL_IMAGES_PATH, imagePath);
            await fs.unlink(fullPath);
        }
    }
    catch (error) {
        console.error('Error deleting image:', error);
    }
}