#!/usr/bin/env node

const BygmaImportService = require('./backend/src/services/bygmaImportService');
const databaseService = require('./backend/src/services/databaseService');

async function testMaterialsSync() {
    console.log('🧪 Testing Bygma materials sync...\n');
    
    try {
        // Initialize database service
        await databaseService.initialize();
        console.log('✅ Database connection established');
        
        // Check current materials count
        const beforeMaterials = await databaseService.query(
            'SELECT COUNT(*) as count FROM materials'
        );
        const beforePrices = await databaseService.query(
            'SELECT COUNT(*) as count FROM material_prices WHERE supplier_name = "Bygma A/S"'
        );
        
        console.log(`📊 Before import:`);
        console.log(`   - Materials: ${beforeMaterials[0].count}`);
        console.log(`   - Bygma prices: ${beforePrices[0].count}`);
        
        // Test import with a small sample
        const csvPath = '/home/alex/git/tilbudgivern/frontend/firmadata/subvendor/bygma/bygma_esg_data.csv';
        
        // Create a small test file with just a few rows for testing
        const testCsvPath = '/tmp/bygma_test_sample.csv';
        
        // Read first 10 lines of the original file
        const fs = require('fs');
        const originalContent = fs.readFileSync(csvPath, 'utf-8');
        const lines = originalContent.split('\n');
        const testContent = lines.slice(0, 11).join('\n'); // Header + 10 data rows
        
        fs.writeFileSync(testCsvPath, testContent);
        console.log(`📂 Created test file with 10 sample rows`);
        
        // Import the test data
        const bygmaImporter = new BygmaImportService(databaseService);
        const result = await bygmaImporter.importESGData(testCsvPath, 'bygma_test_sample.csv');
        
        console.log('\n🎉 Import completed!');
        console.log(`📊 Import Statistics:`);
        console.log(`   - Processed: ${result.importStats.processed} records`);
        console.log(`   - Imported: ${result.importStats.imported} records`);
        console.log(`   - Failed: ${result.importStats.failed} records`);
        
        // Check results in materials system
        const afterMaterials = await databaseService.query(
            'SELECT COUNT(*) as count FROM materials'
        );
        const afterPrices = await databaseService.query(
            'SELECT COUNT(*) as count FROM material_prices WHERE supplier_name = "Bygma A/S"'
        );
        
        console.log(`\n📊 After import:`);
        console.log(`   - Materials: ${afterMaterials[0].count} (+${afterMaterials[0].count - beforeMaterials[0].count})`);
        console.log(`   - Bygma prices: ${afterPrices[0].count} (+${afterPrices[0].count - beforePrices[0].count})`);
        
        // Show some sample materials
        const sampleMaterials = await databaseService.query(`
            SELECT m.sku, m.name, m.unit, m.category, m.brand,
                   mp.price, mp.valid_from
            FROM materials m
            LEFT JOIN material_prices mp ON m.id = mp.material_id AND mp.is_active = 1
            WHERE m.brand = 'Bygma A/S'
            ORDER BY m.created_at DESC
            LIMIT 5
        `);
        
        console.log('\n📦 Sample materials in system:');
        sampleMaterials.forEach((material, index) => {
            console.log(`   ${index + 1}. ${material.sku}: ${material.name.substring(0, 50)}...`);
            console.log(`      Category: ${material.category}, Unit: ${material.unit}`);
            console.log(`      Price: ${material.price ? material.price + ' DKK' : 'N/A'} (from ${material.valid_from || 'N/A'})`);
        });
        
        // Clean up test file
        fs.unlinkSync(testCsvPath);
        console.log('\n🧹 Test file cleaned up');
        
    } catch (error) {
        console.error('❌ Test failed:', error.message);
        console.error('Stack:', error.stack);
    }
    
    console.log('\n🏁 Test completed');
}

testMaterialsSync();