#!/usr/bin/env node
// ═══════════════════════════════════════════════════════════════════════════
// SIL Observer - Kontinuerlig systemobservation
// Skannar kodbas, databaser, och infrastruktur för att uppdatera grafen
// ═══════════════════════════════════════════════════════════════════════════

import { execSync } from 'child_process';
import { readFileSync, existsSync } from 'fs';
import { globSync } from 'glob';

class SILObserver {
  constructor(graphPath) {
    this.graph = JSON.parse(readFileSync(graphPath, 'utf8'));
    this.changes = [];
  }

  // ── Git-observation ─────────────────────────────────────────────────────
  
  observeGit(repoPath) {
    console.log(`🔍 Skannar git-repo: ${repoPath}`);
    
    try {
      // Senaste commit
      const lastCommit = execSync('git log -1 --format="%H|%an|%ae|%at|%s"', { 
        cwd: repoPath,
        encoding: 'utf8'
      }).trim();
      
      const [hash, author, email, timestamp, message] = lastCommit.split('|');
      
      // Ändrade filer
      const changedFiles = execSync('git diff-tree --no-commit-id --name-only -r HEAD', {
        cwd: repoPath,
        encoding: 'utf8'
      }).trim().split('\n').filter(f => f);
      
      // Nya endpoints från ändrade filer
      const newEndpoints = this.extractEndpointsFromFiles(changedFiles, repoPath);
      
      // Nya tabeller från migrationer
      const newTables = this.extractTablesFromMigrations(changedFiles, repoPath);
      
      this.changes.push({
        type: 'git_commit',
        source: 'git',
        confidence: 0.99,
        data: {
          hash,
          author,
          timestamp: new Date(parseInt(timestamp) * 1000).toISOString(),
          message,
          changedFiles,
          newEndpoints,
          newTables
        }
      });
      
      console.log(`  ✅ Hittade ${changedFiles.length} ändrade filer`);
      console.log(`  ✅ ${newEndpoints.length} nya endpoints`);
      console.log(`  ✅ ${newTables.length} nya tabeller`);
      
    } catch (e) {
      console.error(`  ❌ Git-fel: ${e.message}`);
    }
  }
  
  extractEndpointsFromFiles(files, repoPath) {
    const endpoints = [];
    
    for (const file of files) {
      if (!file.match(/\.(ts|js|tsx|jsx|rs)$/)) continue;
      
      const fullPath = `${repoPath}/${file}`;
      if (!existsSync(fullPath)) continue;
      
      const content = readFileSync(fullPath, 'utf8');
      
      // Hitta API-endpoints (Express/Fastify/Axum)
      const endpointMatches = content.matchAll(/\.(get|post|put|delete|patch)\s*\(\s*['"`]([^'"`]+)/g);
      for (const match of endpointMatches) {
        endpoints.push({
          method: match[1].toUpperCase(),
          path: match[2],
          file,
          confidence: 0.98
        });
      }
      
      // Hitta fetch/anrop till externa API:er
      const apiMatches = content.matchAll(/fetch\s*\(\s*['"`]([^'"`]+)/g);
      for (const match of apiMatches) {
        if (match[1].includes('api.quixzoom.com') || match[1].includes('http')) {
          endpoints.push({
            type: 'external_call',
            url: match[1],
            file,
            confidence: 0.95
          });
        }
      }
    }
    
    return endpoints;
  }
  
  extractTablesFromMigrations(files, repoPath) {
    const tables = [];
    
    for (const file of files) {
      if (!file.includes('migration') && !file.includes('schema')) continue;
      
      const fullPath = `${repoPath}/${file}`;
      if (!existsSync(fullPath)) continue;
      
      const content = readFileSync(fullPath, 'utf8');
      
      // Hitta CREATE TABLE
      const tableMatches = content.matchAll(/CREATE\s+TABLE\s+(?:IF\s+NOT\s+EXISTS\s+)?[`"']?(\w+)[`"']?/gi);
      for (const match of tableMatches) {
        tables.push({
          name: match[1],
          operation: 'create',
          file,
          confidence: 0.97
        });
      }
      
      // Hitta ALTER TABLE
      const alterMatches = content.matchAll(/ALTER\s+TABLE\s+[`"']?(\w+)[`"']?/gi);
      for (const match of alterMatches) {
        tables.push({
          name: match[1],
          operation: 'alter',
          file,
          confidence: 0.97
        });
      }
    }
    
    return tables;
  }
  
  // ── AST-observation ─────────────────────────────────────────────────────
  
  observeAST(repoPath) {
    console.log(`🔍 Skannar AST: ${repoPath}`);
    
    // Hitta alla TypeScript/JavaScript-filer
    const files = globSync('**/*.{ts,tsx,js,jsx}', { cwd: repoPath });
    
    const imports = [];
    const functionCalls = [];
    
    for (const file of files.slice(0, 100)) { // Begränsa för prestanda
      const fullPath = `${repoPath}/${file}`;
      if (!existsSync(fullPath)) continue;
      
      const content = readFileSync(fullPath, 'utf8');
      
      // Hitta imports
      const importMatches = content.matchAll(/import\s+.*?\s+from\s+['"`]([^'"`]+)['"`]/g);
      for (const match of importMatches) {
        imports.push({
          source: match[1],
          file,
          confidence: 0.99
        });
      }
      
      // Hitta funktionsanrop till externa tjänster
      const callMatches = content.matchAll(/(\w+)\s*\(\s*['"`]([^'"`]*(?:api|http|stripe|ses)[^'"`]*)['"`]/gi);
      for (const match of callMatches) {
        functionCalls.push({
          function: match[1],
          argument: match[2],
          file,
          confidence: 0.90
        });
      }
    }
    
    this.changes.push({
      type: 'ast_analysis',
      source: 'ast',
      confidence: 0.98,
      data: {
        filesScanned: files.length,
        imports: imports.slice(0, 50),
        functionCalls: functionCalls.slice(0, 50)
      }
    });
    
    console.log(`  ✅ Skannade ${files.length} filer`);
    console.log(`  ✅ Hittade ${imports.length} imports`);
    console.log(`  ✅ Hittade ${functionCalls.length} funktionsanrop`);
  }
  
  // ── Miljövariabler ──────────────────────────────────────────────────────
  
  observeEnvironment() {
    console.log(`🔍 Skannar miljövariabler`);
    
    const envVars = {};
    
    // Hitta .env-filer
    const envFiles = globSync('**/.env*', { cwd: '/home/bernt' });
    
    for (const file of envFiles) {
      try {
        const content = readFileSync(`/home/bernt/${file}`, 'utf8');
        const vars = content.match(/^\w+=[^\n]+/gm) || [];
        envVars[file] = vars.map(v => v.split('=')[0]);
      } catch (e) {
        // Ignorera filer vi inte kan läsa
      }
    }
    
    this.changes.push({
      type: 'environment',
      source: 'env_files',
      confidence: 0.85,
      data: {
        files: envFiles,
        variables: envVars
      }
    });
    
    console.log(`  ✅ Hittade ${envFiles.length} .env-filer`);
  }
  
  // ── Sammanställning ─────────────────────────────────────────────────────
  
  generateReport() {
    console.log(`\n📊 OBSERVER-RAPPORT\n`);
    
    console.log(`Händelser: ${this.changes.length}`);
    console.log(`Källor: ${[...new Set(this.changes.map(c => c.source))].join(', ')}`);
    console.log(`Genomsnittlig confidence: ${(this.changes.reduce((a, c) => a + c.confidence, 0) / this.changes.length).toFixed(2)}`);
    
    // Föreslagna graf-uppdateringar
    console.log(`\n📝 Föreslagna uppdateringar av kunskapsgrafen:\n`);
    
    for (const change of this.changes) {
      switch (change.type) {
        case 'git_commit':
          if (change.data.newEndpoints.length > 0) {
            console.log(`  ➕ Nya endpoints:`);
            change.data.newEndpoints.forEach(e => {
              console.log(`     ${e.method} ${e.path} (${e.confidence})`);
            });
          }
          if (change.data.newTables.length > 0) {
            console.log(`  ➕ Nya/ändrade tabeller:`);
            change.data.newTables.forEach(t => {
              console.log(`     ${t.operation.toUpperCase()} ${t.name} (${t.confidence})`);
            });
          }
          break;
          
        case 'ast_analysis':
          console.log(`  🔍 AST-analys visar ${change.data.imports.length} imports`);
          break;
          
        case 'environment':
          console.log(`  🔧 Miljövariabler från ${Object.keys(change.data.variables).length} filer`);
          break;
      }
    }
    
    return this.changes;
  }
}

// ── Main ──────────────────────────────────────────────────────────────────

const observer = new SILObserver('/home/bernt/.openclaw/workspace/SYSTEM_GRAPH.json');

console.log('🚀 SIL Observer startar...\n');

// Observera quiXzoom frontend
if (existsSync('/home/bernt/repos/quixzoom.com')) {
  observer.observeGit('/home/bernt/repos/quixzoom.com');
  observer.observeAST('/home/bernt/repos/quixzoom.com');
}

// Observera ouroboros-identity
if (existsSync('/home/bernt/rust/ouroboros-identity')) {
  observer.observeGit('/home/bernt/rust/ouroboros-identity');
}

// Miljövariabler
observer.observeEnvironment();

// Generera rapport
const changes = observer.generateReport();

console.log(`\n✅ Observer klar. ${changes.length} händelser identifierade.`);
console.log(`   Kör graph-engine.mjs för att se påverkan.`);