/**
 * Utility CLI Commands - TypeScript Implementation
 *
 * Database maintenance, statistics, and benchmarking
 */
import chalk from 'chalk';
import ora from 'ora';
import Table from 'cli-table3';
import { BrainyData } from '../../brainyData.js';
let brainyInstance = null;
const getBrainy = async () => {
    if (!brainyInstance) {
        brainyInstance = new BrainyData();
        await brainyInstance.init();
    }
    return brainyInstance;
};
const formatBytes = (bytes) => {
    if (bytes === 0)
        return '0 B';
    const k = 1024;
    const sizes = ['B', 'KB', 'MB', 'GB'];
    const i = Math.floor(Math.log(bytes) / Math.log(k));
    return parseFloat((bytes / Math.pow(k, i)).toFixed(2)) + ' ' + sizes[i];
};
const formatOutput = (data, options) => {
    if (options.json) {
        console.log(options.pretty ? JSON.stringify(data, null, 2) : JSON.stringify(data));
    }
};
export const utilityCommands = {
    /**
     * Show database statistics
     */
    async stats(options) {
        const spinner = ora('Gathering statistics...').start();
        try {
            const brain = await getBrainy();
            const stats = await brain.getStatistics();
            const memUsage = process.memoryUsage();
            spinner.succeed('Statistics gathered');
            if (options.json) {
                formatOutput(stats, options);
                return;
            }
            console.log(chalk.cyan('\n📊 Database Statistics\n'));
            // Core stats table
            const coreTable = new Table({
                head: [chalk.cyan('Metric'), chalk.cyan('Value')],
                style: { head: [], border: [] }
            });
            coreTable.push(['Total Items', chalk.green(stats.nounCount + stats.verbCount + stats.metadataCount || 0)], ['Nouns', chalk.green(stats.nounCount || 0)], ['Verbs (Relationships)', chalk.green(stats.verbCount || 0)], ['Metadata Records', chalk.green(stats.metadataCount || 0)]);
            console.log(coreTable.toString());
            // Service breakdown if available
            if (options.byService && stats.serviceBreakdown) {
                console.log(chalk.cyan('\n🔧 Service Breakdown\n'));
                const serviceTable = new Table({
                    head: [chalk.cyan('Service'), chalk.cyan('Nouns'), chalk.cyan('Verbs'), chalk.cyan('Metadata')],
                    style: { head: [], border: [] }
                });
                Object.entries(stats.serviceBreakdown).forEach(([service, serviceStats]) => {
                    serviceTable.push([
                        service,
                        serviceStats.nounCount || 0,
                        serviceStats.verbCount || 0,
                        serviceStats.metadataCount || 0
                    ]);
                });
                console.log(serviceTable.toString());
            }
            // Storage info
            if (stats.storage) {
                console.log(chalk.cyan('\n💾 Storage\n'));
                const storageTable = new Table({
                    head: [chalk.cyan('Property'), chalk.cyan('Value')],
                    style: { head: [], border: [] }
                });
                storageTable.push(['Type', stats.storage.type || 'Unknown'], ['Size', stats.storage.size ? formatBytes(stats.storage.size) : 'N/A'], ['Location', stats.storage.location || 'N/A']);
                console.log(storageTable.toString());
            }
            // Performance metrics
            if (stats.performance && options.detailed) {
                console.log(chalk.cyan('\n⚡ Performance\n'));
                const perfTable = new Table({
                    head: [chalk.cyan('Metric'), chalk.cyan('Value')],
                    style: { head: [], border: [] }
                });
                if (stats.performance.avgQueryTime) {
                    perfTable.push(['Avg Query Time', `${stats.performance.avgQueryTime.toFixed(2)} ms`]);
                }
                if (stats.performance.totalQueries) {
                    perfTable.push(['Total Queries', stats.performance.totalQueries]);
                }
                if (stats.performance.cacheHitRate) {
                    perfTable.push(['Cache Hit Rate', `${(stats.performance.cacheHitRate * 100).toFixed(1)}%`]);
                }
                console.log(perfTable.toString());
            }
            // Memory usage
            console.log(chalk.cyan('\n🧠 Memory Usage\n'));
            const memTable = new Table({
                head: [chalk.cyan('Type'), chalk.cyan('Size')],
                style: { head: [], border: [] }
            });
            memTable.push(['Heap Used', formatBytes(memUsage.heapUsed)], ['Heap Total', formatBytes(memUsage.heapTotal)], ['RSS', formatBytes(memUsage.rss)], ['External', formatBytes(memUsage.external)]);
            console.log(memTable.toString());
            // Index info
            if (stats.index && options.detailed) {
                console.log(chalk.cyan('\n🎯 Vector Index\n'));
                const indexTable = new Table({
                    head: [chalk.cyan('Property'), chalk.cyan('Value')],
                    style: { head: [], border: [] }
                });
                indexTable.push(['Dimensions', stats.index.dimensions || 'N/A'], ['Indexed Vectors', stats.index.vectorCount || 0], ['Index Size', stats.index.indexSize ? formatBytes(stats.index.indexSize) : 'N/A']);
                console.log(indexTable.toString());
            }
        }
        catch (error) {
            spinner.fail('Failed to gather statistics');
            console.error(chalk.red(error.message));
            process.exit(1);
        }
    },
    /**
     * Clean and optimize database
     */
    async clean(options) {
        const spinner = ora('Cleaning database...').start();
        try {
            const brain = await getBrainy();
            const tasks = [];
            if (options.removeOrphans) {
                spinner.text = 'Removing orphaned items...';
                tasks.push('Removed orphaned items');
                // Implementation would go here
                await new Promise(resolve => setTimeout(resolve, 500)); // Simulate work
            }
            if (options.rebuildIndex) {
                spinner.text = 'Rebuilding search index...';
                tasks.push('Rebuilt search index');
                // Implementation would go here
                await new Promise(resolve => setTimeout(resolve, 1000)); // Simulate work
            }
            if (tasks.length === 0) {
                spinner.text = 'Running general cleanup...';
                tasks.push('General cleanup completed');
                // Run general cleanup tasks
                await new Promise(resolve => setTimeout(resolve, 500)); // Simulate work
            }
            spinner.succeed('Database cleaned');
            if (!options.json) {
                console.log(chalk.green('\n✓ Cleanup completed:'));
                tasks.forEach(task => {
                    console.log(chalk.dim(`  • ${task}`));
                });
                // Get new stats
                const stats = await brain.getStatistics();
                console.log(chalk.cyan('\nDatabase Status:'));
                console.log(`  Total items: ${stats.nounCount + stats.verbCount}`);
                console.log(`  Index status: ${chalk.green('Healthy')}`);
            }
            else {
                formatOutput({ tasks, success: true }, options);
            }
        }
        catch (error) {
            spinner.fail('Cleanup failed');
            console.error(chalk.red(error.message));
            process.exit(1);
        }
    },
    /**
     * Run performance benchmarks
     */
    async benchmark(options) {
        const operations = options.operations || 'all';
        const iterations = parseInt(options.iterations || '100');
        console.log(chalk.cyan(`\n🚀 Running Benchmarks (${iterations} iterations)\n`));
        const results = {
            operations: {},
            summary: {}
        };
        try {
            const brain = await getBrainy();
            // Benchmark different operations
            const benchmarks = [
                { name: 'add', enabled: operations === 'all' || operations.includes('add') },
                { name: 'search', enabled: operations === 'all' || operations.includes('search') },
                { name: 'similarity', enabled: operations === 'all' || operations.includes('similarity') },
                { name: 'cluster', enabled: operations === 'all' || operations.includes('cluster') }
            ];
            for (const bench of benchmarks) {
                if (!bench.enabled)
                    continue;
                const spinner = ora(`Benchmarking ${bench.name}...`).start();
                const times = [];
                for (let i = 0; i < iterations; i++) {
                    const start = Date.now();
                    switch (bench.name) {
                        case 'add':
                            await brain.add(`Test item ${i}`, { benchmark: true });
                            break;
                        case 'search':
                            await brain.search('test', 10);
                            break;
                        case 'similarity':
                            const neural = brain.neural;
                            await neural.similar('test1', 'test2');
                            break;
                        case 'cluster':
                            const neuralApi = brain.neural;
                            await neuralApi.clusters();
                            break;
                    }
                    times.push(Date.now() - start);
                }
                // Calculate statistics
                const avg = times.reduce((a, b) => a + b, 0) / times.length;
                const min = Math.min(...times);
                const max = Math.max(...times);
                const median = times.sort((a, b) => a - b)[Math.floor(times.length / 2)];
                results.operations[bench.name] = {
                    avg: avg.toFixed(2),
                    min,
                    max,
                    median,
                    ops: (1000 / avg).toFixed(2)
                };
                spinner.succeed(`${bench.name}: ${avg.toFixed(2)}ms avg (${(1000 / avg).toFixed(2)} ops/sec)`);
            }
            // Calculate summary
            const totalOps = Object.values(results.operations).reduce((sum, op) => sum + parseFloat(op.ops), 0);
            results.summary = {
                totalOperations: Object.keys(results.operations).length,
                averageOpsPerSec: (totalOps / Object.keys(results.operations).length).toFixed(2)
            };
            if (!options.json) {
                // Display results table
                console.log(chalk.cyan('\n📊 Benchmark Results\n'));
                const table = new Table({
                    head: [
                        chalk.cyan('Operation'),
                        chalk.cyan('Avg (ms)'),
                        chalk.cyan('Min (ms)'),
                        chalk.cyan('Max (ms)'),
                        chalk.cyan('Median (ms)'),
                        chalk.cyan('Ops/sec')
                    ],
                    style: { head: [], border: [] }
                });
                Object.entries(results.operations).forEach(([op, stats]) => {
                    table.push([
                        op,
                        stats.avg,
                        stats.min,
                        stats.max,
                        stats.median,
                        chalk.green(stats.ops)
                    ]);
                });
                console.log(table.toString());
                console.log(chalk.cyan('\n📈 Summary'));
                console.log(`  Operations tested: ${results.summary.totalOperations}`);
                console.log(`  Average throughput: ${chalk.green(results.summary.averageOpsPerSec)} ops/sec`);
            }
            else {
                formatOutput(results, options);
            }
        }
        catch (error) {
            console.error(chalk.red('Benchmark failed:'), error.message);
            process.exit(1);
        }
    }
};
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