import swaggerJSDoc from 'swagger-jsdoc';
import path from 'path';
import fs from 'fs';

// Swagger JSDoc needs the source TypeScript files (not compiled JS) to read JSDoc comments
// When running from dist/, we need to look for src/ at the project root
// When running from src/, we use relative path

// Check if we're running from dist (compiled) or src (development)
const isRunningFromDist = __dirname.includes('dist');
const projectRoot = isRunningFromDist 
  ? path.resolve(__dirname, '../..')  // Go up from dist/docs to project root
  : path.resolve(__dirname, '..');     // Go up from src/docs to project root

// Always use source TypeScript files from src/routes
const routesPath = path.join(projectRoot, 'src/routes/*.ts');

console.log(`🔍 Swagger looking for routes at: ${routesPath}`);
console.log(`📂 Running from: ${isRunningFromDist ? 'dist' : 'src'}`);
console.log(`📂 Project root: ${projectRoot}`);

// Check if route files exist (for debugging)
try {
  const routesDir = path.join(projectRoot, 'src/routes');
  if (fs.existsSync(routesDir)) {
    const files = fs.readdirSync(routesDir);
    console.log(`📁 Found ${files.length} route files in ${routesDir}`);
    const tsFiles = files.filter(f => f.endsWith('.ts'));
    console.log(`📄 TypeScript route files: ${tsFiles.length}`);
  } else {
    console.warn(`⚠️  Routes directory not found: ${routesDir}`);
  }
  
  // Also check if the glob pattern resolves correctly
  const testPattern = path.join(projectRoot, 'src/routes/*.ts');
  console.log(`🔍 Using pattern: ${testPattern}`);
} catch (error) {
  console.warn('⚠️  Could not check routes directory:', error);
}

export const swaggerSpec = swaggerJSDoc({
  definition: {
    openapi: '3.0.0',
    info: {
      title: 'Zurri API',
      version: '1.0.0',
      description: 'Zurri Agents Marketplace API with Wallet Point System',
    },
    servers: [
      { 
        url: process.env.API_BASE_URL || '/api',
        description: 'API Server'
      },
    ],
    components: {
      securitySchemes: {
        bearerAuth: {
          type: 'http',
          scheme: 'bearer',
          bearerFormat: 'JWT',
        },
      },
      schemas: {
        Agent: {
          type: 'object',
          properties: {
            id: {
              type: 'string',
              format: 'uuid',
            },
            name: {
              type: 'string',
              example: 'PixelPainter',
            },
            description: {
              type: 'string',
              example: 'I turn prompts into AI art!',
            },
            endpoint: {
              type: 'string',
              format: 'uri',
              example: 'https://api.pixelpainter.ai/run',
            },
            avatar: {
              type: 'string',
              format: 'uri',
              nullable: true,
              description: 'IPFS gateway URL for avatar image',
            },
            category: {
              type: 'string',
              example: 'image generation',
            },
            reputation: {
              type: 'number',
              format: 'float',
              example: 4.8,
            },
            capabilities: {
              type: 'array',
              items: {
                type: 'string',
              },
              example: ['text-to-image', 'image-editing'],
            },
            pointsPerTask: {
              type: 'number',
              format: 'float',
              example: 10,
            },
            status: {
              type: 'string',
              enum: ['pending', 'approved', 'rejected', 'suspended'],
            },
            usageCount: {
              type: 'integer',
              example: 0,
            },
            rating: {
              type: 'number',
              format: 'float',
              nullable: true,
            },
            ratingCount: {
              type: 'integer',
              example: 0,
            },
            creatorId: {
              type: 'string',
              format: 'uuid',
            },
            createdAt: {
              type: 'string',
              format: 'date-time',
            },
            updatedAt: {
              type: 'string',
              format: 'date-time',
            },
          },
        },
        ChatMessage: {
          type: 'object',
          properties: {
            id: {
              type: 'string',
              format: 'uuid',
            },
            role: {
              type: 'string',
              enum: ['user', 'assistant', 'system'],
              description: 'Message role (user = user message, assistant = agent response, system = system message)',
            },
            content: {
              type: 'string',
              description: 'Message content',
            },
            agentId: {
              type: 'string',
              format: 'uuid',
            },
            userId: {
              type: 'string',
              format: 'uuid',
              nullable: true,
            },
            conversationId: {
              type: 'string',
              nullable: true,
              description: 'Conversation ID this message belongs to',
            },
            metadata: {
              type: 'object',
              description: 'Additional message metadata (files, IPFS hashes, etc.)',
              additionalProperties: true,
            },
            createdAt: {
              type: 'string',
              format: 'date-time',
            },
          },
        },
        ChatResponse: {
          type: 'object',
          properties: {
            response: {
              type: 'string',
              description: 'Agent\'s response message',
            },
            conversationId: {
              type: 'string',
              description: 'Conversation ID for this chat session',
            },
            metadata: {
              type: 'object',
              description: 'Additional response metadata from agent',
              additionalProperties: true,
            },
          },
        },
        User: {
          type: 'object',
          properties: {
            id: {
              type: 'string',
              format: 'uuid',
              description: 'User ID',
            },
            email: {
              type: 'string',
              format: 'email',
              description: 'User email address',
            },
            name: {
              type: 'string',
              nullable: true,
              description: 'User display name',
            },
            isAdmin: {
              type: 'boolean',
              default: false,
              description: 'Whether user has admin privileges',
            },
            isCreator: {
              type: 'boolean',
              default: false,
              description: 'Whether user can create and manage agents',
            },
            isActive: {
              type: 'boolean',
              default: true,
              description: 'Whether user account is active',
            },
            createdAt: {
              type: 'string',
              format: 'date-time',
              description: 'Account creation timestamp',
            },
            updatedAt: {
              type: 'string',
              format: 'date-time',
              description: 'Last update timestamp',
            },
          },
        },
      },
    },
    security: [{ bearerAuth: [] }],
  },
  apis: [routesPath],
});

// Log Swagger spec generation
try {
  const spec = swaggerSpec as any; // Type assertion for logging
  const paths = spec.paths ? Object.keys(spec.paths) : [];
  console.log(`📚 Swagger spec generated with ${paths.length} endpoints`);
  if (paths.length === 0) {
    console.warn('⚠️  No endpoints found in Swagger spec. Check route files.');
  }
} catch (error) {
  console.error('❌ Error generating Swagger spec:', error);
}