const express = require('express');
const cors = require('cors');
const app = express();
const passport = require('passport');
const path = require('path');
const fs = require('fs');
const bodyParser = require('body-parser');
const db = require('./db/models');
const config = require('./config');
const swaggerUI = require('swagger-ui-express');
const swaggerJsDoc = require('swagger-jsdoc');

const authRoutes = require('./routes/auth');
const fileRoutes = require('./routes/file');
const searchRoutes = require('./routes/search');
const sqlRoutes = require('./routes/sql');
const pexelsRoutes = require('./routes/pexels');

const openaiRoutes = require('./routes/openai');



const usersRoutes = require('./routes/users');

const rolesRoutes = require('./routes/roles');

const permissionsRoutes = require('./routes/permissions');

const practice_groupsRoutes = require('./routes/practice_groups');

const matter_typesRoutes = require('./routes/matter_types');

const data_classificationsRoutes = require('./routes/data_classifications');

const ai_toolsRoutes = require('./routes/ai_tools');

const vendorsRoutes = require('./routes/vendors');

const ai_use_casesRoutes = require('./routes/ai_use_cases');

const approval_stepsRoutes = require('./routes/approval_steps');

const vendor_risk_assessmentsRoutes = require('./routes/vendor_risk_assessments');

const policiesRoutes = require('./routes/policies');

const human_review_checklistsRoutes = require('./routes/human_review_checklists');

const checklist_itemsRoutes = require('./routes/checklist_items');

const training_coursesRoutes = require('./routes/training_courses');

const training_requirementsRoutes = require('./routes/training_requirements');

const user_training_recordsRoutes = require('./routes/user_training_records');

const tool_entitlementsRoutes = require('./routes/tool_entitlements');

const workflow_runsRoutes = require('./routes/workflow_runs');

const review_exceptionsRoutes = require('./routes/review_exceptions');

const integrationsRoutes = require('./routes/integrations');

const roles_catalogRoutes = require('./routes/roles_catalog');


const getBaseUrl = (url) => {
  if (!url) return '';
  return url.endsWith('/api') ? url.slice(0, -4) : url;
};

const options = {
  definition: {
    openapi: "3.0.0",
      info: {
        version: "1.0.0",
        title: "Legal AI Governance Hub",
        description: "Legal AI Governance Hub Online REST API for Testing and Prototyping application. You can perform all major operations with your entities - create, delete and etc.",
      },
    servers: [
      {
        url: getBaseUrl(process.env.NEXT_PUBLIC_BACK_API) || config.swaggerUrl,
        description: "Development server",
      }
    ],
    components: {
      securitySchemes: {
        bearerAuth: {
          type: 'http',
          scheme: 'bearer',
          bearerFormat: 'JWT',
        }
      },
      responses: {
        UnauthorizedError: {
          description: "Access token is missing or invalid"
        }
      }
    },
    security: [{
      bearerAuth: []
    }]
  },
  apis: ["./src/routes/*.js"],
};

const specs = swaggerJsDoc(options);
app.use('/api-docs', function (req, res, next) {
    swaggerUI.host = getBaseUrl(process.env.NEXT_PUBLIC_BACK_API) || req.get('host');
    next()
  }, swaggerUI.serve, swaggerUI.setup(specs))

app.use(cors({origin: true}));
require('./auth/auth');

app.use(bodyParser.json());

app.use('/api/auth', authRoutes);
app.use('/api/file', fileRoutes);
app.use('/api/pexels', pexelsRoutes);
app.enable('trust proxy');


app.use('/api/users', passport.authenticate('jwt', {session: false}), usersRoutes);

app.use('/api/roles', passport.authenticate('jwt', {session: false}), rolesRoutes);

app.use('/api/permissions', passport.authenticate('jwt', {session: false}), permissionsRoutes);

app.use('/api/practice_groups', passport.authenticate('jwt', {session: false}), practice_groupsRoutes);

app.use('/api/matter_types', passport.authenticate('jwt', {session: false}), matter_typesRoutes);

app.use('/api/data_classifications', passport.authenticate('jwt', {session: false}), data_classificationsRoutes);

app.use('/api/ai_tools', passport.authenticate('jwt', {session: false}), ai_toolsRoutes);

app.use('/api/vendors', passport.authenticate('jwt', {session: false}), vendorsRoutes);

app.use('/api/ai_use_cases', passport.authenticate('jwt', {session: false}), ai_use_casesRoutes);

app.use('/api/approval_steps', passport.authenticate('jwt', {session: false}), approval_stepsRoutes);

app.use('/api/vendor_risk_assessments', passport.authenticate('jwt', {session: false}), vendor_risk_assessmentsRoutes);

app.use('/api/policies', passport.authenticate('jwt', {session: false}), policiesRoutes);

app.use('/api/human_review_checklists', passport.authenticate('jwt', {session: false}), human_review_checklistsRoutes);

app.use('/api/checklist_items', passport.authenticate('jwt', {session: false}), checklist_itemsRoutes);

app.use('/api/training_courses', passport.authenticate('jwt', {session: false}), training_coursesRoutes);

app.use('/api/training_requirements', passport.authenticate('jwt', {session: false}), training_requirementsRoutes);

app.use('/api/user_training_records', passport.authenticate('jwt', {session: false}), user_training_recordsRoutes);

app.use('/api/tool_entitlements', passport.authenticate('jwt', {session: false}), tool_entitlementsRoutes);

app.use('/api/workflow_runs', passport.authenticate('jwt', {session: false}), workflow_runsRoutes);

app.use('/api/review_exceptions', passport.authenticate('jwt', {session: false}), review_exceptionsRoutes);

app.use('/api/integrations', passport.authenticate('jwt', {session: false}), integrationsRoutes);

app.use('/api/roles_catalog', passport.authenticate('jwt', {session: false}), roles_catalogRoutes);

app.use(
    '/api/openai',
    passport.authenticate('jwt', { session: false }),
    openaiRoutes,
);
app.use(
    '/api/ai',
    passport.authenticate('jwt', { session: false }),
    openaiRoutes,
);

app.use(
  '/api/search',
  passport.authenticate('jwt', { session: false }),
  searchRoutes);
app.use(
  '/api/sql',
  passport.authenticate('jwt', { session: false }),
  sqlRoutes);

  
const publicDir = path.join(
  __dirname,
  '../public',
);

if (fs.existsSync(publicDir)) {
  app.use('/', express.static(publicDir));

  app.get('*', function(request, response) {
    response.sendFile(
      path.resolve(publicDir, 'index.html'),
    );
  });
}

const PORT = process.env.NODE_ENV === 'dev_stage' ? 3000 : 8080;

  app.listen(PORT, () => {
    console.log(`Listening on port ${PORT}`);
  });

module.exports = app;