/**
 * @fileoverview Fix syntax issues while preserving all parameters
 * This script fixes structural issues but keeps all parameter definitions
 */

import fs from 'fs';
import path from 'path';

/**
 * Fix syntax while preserving all parameters
 */
function fixSyntaxPreserveParameters() {
    try {
        console.log('=== FIXING SYNTAX WHILE PRESERVING ALL PARAMETERS ===');
        console.log('');

        const endpointsPath = path.join(process.cwd(), 'src/config/endpoints.js');
        let content = fs.readFileSync(endpointsPath, 'utf8');

        console.log('📁 Reading endpoints.js...');
        console.log(`📊 Original file size: ${content.length} characters`);

        // Create backup
        const backupPath = path.join(process.cwd(), `endpoints_syntax_preserve_backup_${Date.now()}.js`);
        fs.writeFileSync(backupPath, content);
        console.log(`💾 Backup created: ${backupPath}`);

        // Fix syntax issues step by step
        console.log('🔧 Step 1: Fix bracket notation in parameter names...');
        content = fixBracketNotation(content);

        console.log('🔧 Step 2: Fix malformed parameter structures...');
        content = fixMalformedParameters(content);

        console.log('🔧 Step 3: Fix excessive closing braces...');
        content = fixExcessiveBraces(content);

        console.log('🔧 Step 4: Fix missing commas...');
        content = fixMissingCommas(content);

        console.log('🔧 Step 5: Fix multi-line descriptions...');
        content = fixMultiLineDescriptions(content);

        console.log('🔧 Step 6: Add missing helper functions...');
        content = addMissingHelperFunctions(content);

        // Write the fixed content
        fs.writeFileSync(endpointsPath, content);
        
        console.log(`📊 Fixed file size: ${content.length} characters`);
        console.log('');
        console.log('✅ Syntax fixed while preserving all parameters!');

        return {
            backupPath: backupPath,
            success: true
        };

    } catch (error) {
        console.error('❌ Error fixing syntax:', error);
        throw error;
    }
}

/**
 * Fix bracket notation in parameter names
 */
function fixBracketNotation(content) {
    // Fix parameter names with brackets - need to quote them
    content = content.replace(/(\s+)([a-zA-Z_][a-zA-Z0-9_]*\[[^\]]+\](?:\[[^\]]+\])?)(\s*:\s*\{)/g, '$1"$2"$3');
    return content;
}

/**
 * Fix malformed parameter structures
 */
function fixMalformedParameters(content) {
    // Fix parameter definitions that are missing closing braces
    content = content.replace(
        /(\w+:\s*\{\s*type:\s*"[^"]*",\s*required:\s*(?:true|false),\s*description:\s*"[^"]*")\s*,?\s*\n(\s*)(\w+:|"[^"]+":|\})/g,
        (match, paramDef, indent, nextItem) => {
            if (nextItem === '}') {
                return `${paramDef} }\n${indent}${nextItem}`;
            } else {
                return `${paramDef} },\n${indent}${nextItem}`;
            }
        }
    );
    
    return content;
}

/**
 * Fix excessive closing braces
 */
function fixExcessiveBraces(content) {
    // Remove excessive closing braces
    content = content.replace(/\}\s*\}\s*\}/g, '}');
    content = content.replace(/\}\s*\}/g, '}');
    
    return content;
}

/**
 * Fix missing commas
 */
function fixMissingCommas(content) {
    // Fix missing commas between parameters
    content = content.replace(/(\}\s*)\n(\s+[a-zA-Z_"'])/g, '$1,\n$2');
    
    // Fix trailing commas before closing braces
    content = content.replace(/,(\s*\})/g, '$1');
    
    return content;
}

/**
 * Fix multi-line descriptions
 */
function fixMultiLineDescriptions(content) {
    // Fix descriptions that are split across multiple lines
    content = content.replace(
        /description:\s*\n\s*"([^"]*)"([^}]*)/g,
        'description: "$1"$2'
    );
    
    return content;
}

/**
 * Add missing helper functions
 */
function addMissingHelperFunctions(content) {
    // Check if helper functions already exist
    if (content.includes('export function getEndpointsByAuthType')) {
        return content;
    }

    // Add helper functions at the end
    const helperFunctions = `

/**
 * Helper function to get endpoints by authentication type
 */
export function getEndpointsByAuthType(authType) {
  switch (authType) {
    case AUTH_TYPES.PUBLIC:
      return PUBLIC_ENDPOINTS;
    case AUTH_TYPES.PROVIDER:
      return PROVIDER_ENDPOINTS;
    case AUTH_TYPES.PATIENT:
      return PATIENT_ENDPOINTS;
    case AUTH_TYPES.PARTNER:
      return PARTNER_ENDPOINTS;
    case AUTH_TYPES.AFFILIATE:
      return AFFILIATE_ENDPOINTS;
    case AUTH_TYPES.NETWORK:
      return NETWORK_ENDPOINTS;
    default:
      return [];
  }
}

/**
 * Get all endpoints
 */
export function getAllEndpoints() {
  return [
    ...PUBLIC_ENDPOINTS,
    ...PROVIDER_ENDPOINTS,
    ...PATIENT_ENDPOINTS,
    ...PARTNER_ENDPOINTS,
    ...AFFILIATE_ENDPOINTS,
    ...NETWORK_ENDPOINTS
  ];
}`;

    return content + helperFunctions;
}

/**
 * Validate the fixed file syntax
 */
async function validateSyntax() {
    try {
        console.log('🔍 Validating syntax...');
        
        const endpointsPath = path.join(process.cwd(), 'src/config/endpoints.js');
        
        // Use Node.js syntax check
        const { spawn } = await import('child_process');
        
        return new Promise((resolve) => {
            const child = spawn('node', ['-c', endpointsPath], {
                stdio: ['pipe', 'pipe', 'pipe']
            });
            
            let stderr = '';
            child.stderr.on('data', (data) => {
                stderr += data.toString();
            });
            
            child.on('close', (code) => {
                if (code === 0) {
                    console.log('✅ Syntax validation passed');
                    resolve(true);
                } else {
                    console.error('❌ Syntax errors found:');
                    console.error(stderr);
                    resolve(false);
                }
            });
        });
        
    } catch (error) {
        console.error('❌ Error validating syntax:', error);
        return false;
    }
}

/**
 * Count tools after fix
 */
function countTools() {
    try {
        console.log('📊 Counting tools...');
        
        const endpointsPath = path.join(process.cwd(), 'src/config/endpoints.js');
        const content = fs.readFileSync(endpointsPath, 'utf8');
        
        const sections = ['PUBLIC_ENDPOINTS', 'PROVIDER_ENDPOINTS', 'PATIENT_ENDPOINTS', 'PARTNER_ENDPOINTS', 'AFFILIATE_ENDPOINTS', 'NETWORK_ENDPOINTS'];
        let total = 0;
        
        sections.forEach(section => {
            const regex = new RegExp(`${section}\\s*=\\s*\\[([\\s\\S]*?)\\];`);
            const match = content.match(regex);
            if (match) {
                const count = (match[1].match(/\{[\s\S]*?\}/g) || []).length;
                console.log(`  ${section.replace('_ENDPOINTS', '')}: ${count} tools`);
                total += count;
            }
        });
        
        console.log(`  TOTAL: ${total} tools`);
        return total;
        
    } catch (error) {
        console.error('❌ Error counting tools:', error);
        return 0;
    }
}

// Run the syntax fix
if (import.meta.url === `file://${process.argv[1]}`) {
    (async () => {
        try {
            const result = fixSyntaxPreserveParameters();
            
            console.log('');
            console.log('=== VALIDATION ===');
            
            const isValid = await validateSyntax();
            const toolCount = countTools();
            
            if (isValid) {
                console.log('🎉 Syntax successfully fixed!');
                console.log('✅ All parameters preserved');
                console.log(`📊 Total tools: ${toolCount}`);
            } else {
                console.log('⚠️  Some syntax issues may remain');
            }
            
            console.log(`💾 Backup saved: ${result.backupPath}`);
            
        } catch (error) {
            console.error('❌ Failed to fix syntax:', error);
        }
    })();
}

export { fixSyntaxPreserveParameters };