/**
 * Validate Personal Configuration Script
 * Checks config.yaml for errors and completeness
 *
 * Usage: npx tsx scripts/validate-config.ts
 */

import * as fs from 'fs';
import * as path from 'path';
import * as yaml from 'js-yaml';

const CONFIG_PATH = path.join(__dirname, '..', 'config.yaml');

interface ValidationError {
  path: string;
  message: string;
  severity: 'error' | 'warning';
}

const errors: ValidationError[] = [];

function addError(path: string, message: string, severity: 'error' | 'warning' = 'error'): void {
  errors.push({ path, message, severity });
}

function validateEmail(email: string): boolean {
  return /^[^\s@]+@[^\s@]+\.[^\s@]+$/.test(email);
}

function validateConfig(config: Record<string, unknown>): void {
  // Validate admin section
  if (!config.admin) {
    addError('admin', 'Admin section is required');
  } else {
    const admin = config.admin as Record<string, unknown>;
    if (!admin.email || !validateEmail(admin.email as string)) {
      addError('admin.email', 'Valid email is required');
    }
    if (!admin.role || !['admin', 'premium', 'user'].includes(admin.role as string)) {
      addError('admin.role', 'Role must be one of: admin, premium, user');
    }
  }

  // Validate risk profile
  if (!config.risk_profile) {
    addError('risk_profile', 'Risk profile section is required');
  } else {
    const rp = config.risk_profile as Record<string, unknown>;
    if (typeof rp.max_risk_percent !== 'number' || rp.max_risk_percent <= 0 || rp.max_risk_percent > 100) {
      addError('risk_profile.max_risk_percent', 'Must be a number between 0 and 100');
    }
    if (typeof rp.max_drawdown_tolerance !== 'number' || rp.max_drawdown_tolerance <= 0) {
      addError('risk_profile.max_drawdown_tolerance', 'Must be a positive number');
    }
  }

  // Validate priority assets
  if (!config.priority_assets || !Array.isArray(config.priority_assets)) {
    addError('priority_assets', 'Priority assets array is required');
  } else {
    const assets = config.priority_assets as Record<string, unknown>[];
    if (assets.length === 0) {
      addError('priority_assets', 'At least one priority asset is required', 'warning');
    }
    assets.forEach((asset, i) => {
      if (!asset.symbol) {
        addError(`priority_assets[${i}].symbol`, 'Symbol is required');
      }
      if (!asset.data_provider) {
        addError(`priority_assets[${i}].data_provider`, 'Data provider is required');
      }
      if (typeof asset.priority !== 'number') {
        addError(`priority_assets[${i}].priority`, 'Priority must be a number');
      }
    });

    // Check for duplicate symbols
    const symbols = assets.map(a => a.symbol);
    const duplicates = symbols.filter((s, i) => symbols.indexOf(s) !== i);
    if (duplicates.length > 0) {
      addError('priority_assets', `Duplicate symbols found: ${duplicates.join(', ')}`);
    }
  }

  // Validate trading agents
  if (!config.trading_agents || !Array.isArray(config.trading_agents)) {
    addError('trading_agents', 'Trading agents array is required');
  } else {
    const agents = config.trading_agents as Record<string, unknown>[];
    agents.forEach((agent, i) => {
      if (!agent.name) {
        addError(`trading_agents[${i}].name`, 'Name is required');
      }
      if (!agent.slug) {
        addError(`trading_agents[${i}].slug`, 'Slug is required');
      }
      if (!agent.risk_profile || !['conservative', 'moderate', 'aggressive'].includes(agent.risk_profile as string)) {
        addError(`trading_agents[${i}].risk_profile`, 'Risk profile must be: conservative, moderate, or aggressive');
      }
      if (typeof agent.min_confidence !== 'number' || (agent.min_confidence as number) < 0 || (agent.min_confidence as number) > 1) {
        addError(`trading_agents[${i}].min_confidence`, 'Min confidence must be between 0 and 1');
      }
      if (!agent.supported_symbols || !Array.isArray(agent.supported_symbols) || (agent.supported_symbols as string[]).length === 0) {
        addError(`trading_agents[${i}].supported_symbols`, 'At least one supported symbol is required');
      }
    });

    // Check for duplicate slugs
    const slugs = agents.map(a => a.slug);
    const dupSlugs = slugs.filter((s, i) => slugs.indexOf(s) !== i);
    if (dupSlugs.length > 0) {
      addError('trading_agents', `Duplicate slugs found: ${dupSlugs.join(', ')}`);
    }
  }

  // Validate paper trading
  if (config.paper_trading) {
    const pt = config.paper_trading as Record<string, unknown>;
    if (pt.enabled && typeof pt.initial_balance !== 'number') {
      addError('paper_trading.initial_balance', 'Initial balance must be a number when enabled');
    }
    if (pt.enabled && (pt.initial_balance as number) <= 0) {
      addError('paper_trading.initial_balance', 'Initial balance must be positive');
    }
  }

  // Validate ML models
  if (config.ml_models) {
    const ml = config.ml_models as Record<string, unknown>;
    const thresholds = ml.thresholds as Record<string, number> | undefined;
    if (thresholds) {
      if (typeof thresholds.min_confidence !== 'number' || thresholds.min_confidence < 0 || thresholds.min_confidence > 1) {
        addError('ml_models.thresholds.min_confidence', 'Must be between 0 and 1');
      }
    }
  }

  // Validate system settings
  if (config.system) {
    const sys = config.system as Record<string, unknown>;
    if (sys.auto_trade_enabled && !sys.auto_trade_require_confirmation) {
      addError('system', 'Auto trade without confirmation is risky', 'warning');
    }
  }
}

async function main(): Promise<void> {
  console.log('='.repeat(60));
  console.log('OrbiQuant IA - Config Validation');
  console.log('='.repeat(60));
  console.log(`\nValidating: ${CONFIG_PATH}\n`);

  try {
    if (!fs.existsSync(CONFIG_PATH)) {
      console.error('ERROR: config.yaml not found!');
      process.exit(1);
    }

    const configFile = fs.readFileSync(CONFIG_PATH, 'utf8');
    const config = yaml.load(configFile) as Record<string, unknown>;

    validateConfig(config);

    const errorCount = errors.filter(e => e.severity === 'error').length;
    const warningCount = errors.filter(e => e.severity === 'warning').length;

    if (errors.length > 0) {
      console.log('Validation Results:\n');

      const errorsList = errors.filter(e => e.severity === 'error');
      if (errorsList.length > 0) {
        console.log('ERRORS:');
        errorsList.forEach(e => {
          console.log(`  [ERROR] ${e.path}: ${e.message}`);
        });
      }

      const warningsList = errors.filter(e => e.severity === 'warning');
      if (warningsList.length > 0) {
        console.log('\nWARNINGS:');
        warningsList.forEach(e => {
          console.log(`  [WARN] ${e.path}: ${e.message}`);
        });
      }

      console.log('\n' + '-'.repeat(60));
      console.log(`Summary: ${errorCount} error(s), ${warningCount} warning(s)`);

      if (errorCount > 0) {
        process.exit(1);
      }
    } else {
      console.log('Config is valid!\n');

      // Print summary
      const admin = config.admin as Record<string, unknown>;
      const assets = config.priority_assets as Record<string, unknown>[];
      const agents = config.trading_agents as Record<string, unknown>[];

      console.log('Configuration Summary:');
      console.log(`  Admin: ${admin.email}`);
      console.log(`  Assets: ${assets.length} priority asset(s)`);
      console.log(`  Agents: ${agents.length} trading agent(s)`);
      console.log(`  Paper Trading: ${(config.paper_trading as Record<string, unknown>).enabled ? 'Enabled' : 'Disabled'}`);
    }

  } catch (error) {
    console.error('Validation failed:', (error as Error).message);
    process.exit(1);
  }
}

main();