const express             = require('express');
const validator           = require('../../../lib/validator');
const jwtdecode           = require('../../../lib/express/jwt-decode');
const internalCertificate = require('../../../internal/certificate');
const apiValidator        = require('../../../lib/validator/api');

let router = express.Router({
	caseSensitive: true,
	strict:        true,
	mergeParams:   true
});

/**
 * /api/nginx/certificates
 */
router
	.route('/')
	.options((req, res) => {
		res.sendStatus(204);
	})
	.all(jwtdecode())

	/**
	 * GET /api/nginx/certificates
	 *
	 * Retrieve all certificates
	 */
	.get((req, res, next) => {
		validator({
			additionalProperties: false,
			properties:           {
				expand: {
					$ref: 'definitions#/definitions/expand'
				},
				query: {
					$ref: 'definitions#/definitions/query'
				}
			}
		}, {
			expand: (typeof req.query.expand === 'string' ? req.query.expand.split(',') : null),
			query:  (typeof req.query.query === 'string' ? req.query.query : null)
		})
			.then((data) => {
				return internalCertificate.getAll(res.locals.access, data.expand, data.query);
			})
			.then((rows) => {
				res.status(200)
					.send(rows);
			})
			.catch(next);
	})

	/**
	 * POST /api/nginx/certificates
	 *
	 * Create a new certificate
	 */
	.post((req, res, next) => {
		apiValidator({$ref: 'endpoints/certificates#/links/1/schema'}, req.body)
			.then((payload) => {
				req.setTimeout(900000); // 15 minutes timeout
				return internalCertificate.create(res.locals.access, payload);
			})
			.then((result) => {
				res.status(201)
					.send(result);
			})
			.catch(next);
	});

/**
 * Test HTTP challenge for domains
 *
 * /api/nginx/certificates/test-http
 */
router
	.route('/test-http')
	.options((req, res) => {
		res.sendStatus(204);
	})
	.all(jwtdecode())

/**
 * GET /api/nginx/certificates/test-http
 *
 * Test HTTP challenge for domains
 */
	.get((req, res, next) => {
		internalCertificate.testHttpsChallenge(res.locals.access, JSON.parse(req.query.domains))
			.then((result) => {
				res.status(200)
					.send(result);
			})
			.catch(next);
	});

/**
 * Specific certificate
 *
 * /api/nginx/certificates/123
 */
router
	.route('/:certificate_id')
	.options((req, res) => {
		res.sendStatus(204);
	})
	.all(jwtdecode())

	/**
	 * GET /api/nginx/certificates/123
	 *
	 * Retrieve a specific certificate
	 */
	.get((req, res, next) => {
		validator({
			required:             ['certificate_id'],
			additionalProperties: false,
			properties:           {
				certificate_id: {
					$ref: 'definitions#/definitions/id'
				},
				expand: {
					$ref: 'definitions#/definitions/expand'
				}
			}
		}, {
			certificate_id: req.params.certificate_id,
			expand:         (typeof req.query.expand === 'string' ? req.query.expand.split(',') : null)
		})
			.then((data) => {
				return internalCertificate.get(res.locals.access, {
					id:     parseInt(data.certificate_id, 10),
					expand: data.expand
				});
			})
			.then((row) => {
				res.status(200)
					.send(row);
			})
			.catch(next);
	})

	/**
	 * PUT /api/nginx/certificates/123
	 *
	 * Update and existing certificate
	 */
	.put((req, res, next) => {
		apiValidator({$ref: 'endpoints/certificates#/links/2/schema'}, req.body)
			.then((payload) => {
				payload.id = parseInt(req.params.certificate_id, 10);
				return internalCertificate.update(res.locals.access, payload);
			})
			.then((result) => {
				res.status(200)
					.send(result);
			})
			.catch(next);
	})

	/**
	 * DELETE /api/nginx/certificates/123
	 *
	 * Update and existing certificate
	 */
	.delete((req, res, next) => {
		internalCertificate.delete(res.locals.access, {id: parseInt(req.params.certificate_id, 10)})
			.then((result) => {
				res.status(200)
					.send(result);
			})
			.catch(next);
	});

/**
 * Upload Certs
 *
 * /api/nginx/certificates/123/upload
 */
router
	.route('/:certificate_id/upload')
	.options((req, res) => {
		res.sendStatus(204);
	})
	.all(jwtdecode())

	/**
	 * POST /api/nginx/certificates/123/upload
	 *
	 * Upload certificates
	 */
	.post((req, res, next) => {
		if (!req.files) {
			res.status(400)
				.send({error: 'No files were uploaded'});
		} else {
			internalCertificate.upload(res.locals.access, {
				id:    parseInt(req.params.certificate_id, 10),
				files: req.files
			})
				.then((result) => {
					res.status(200)
						.send(result);
				})
				.catch(next);
		}
	});

/**
 * Renew LE Certs
 *
 * /api/nginx/certificates/123/renew
 */
router
	.route('/:certificate_id/renew')
	.options((req, res) => {
		res.sendStatus(204);
	})
	.all(jwtdecode())

	/**
	 * POST /api/nginx/certificates/123/renew
	 *
	 * Renew certificate
	 */
	.post((req, res, next) => {
		req.setTimeout(900000); // 15 minutes timeout
		internalCertificate.renew(res.locals.access, {
			id: parseInt(req.params.certificate_id, 10)
		})
			.then((result) => {
				res.status(200)
					.send(result);
			})
			.catch(next);
	});

/**
 * Download LE Certs
 *
 * /api/nginx/certificates/123/download
 */
router
	.route('/:certificate_id/download')
	.options((req, res) => {
		res.sendStatus(204);
	})
	.all(jwtdecode())

	/**
	 * GET /api/nginx/certificates/123/download
	 *
	 * Renew certificate
	 */
	.get((req, res, next) => {
		internalCertificate.download(res.locals.access, {
			id: parseInt(req.params.certificate_id, 10)
		})
			.then((result) => {
				res.status(200)
					.download(result.fileName);
			})
			.catch(next);
	});

/**
 * Validate Certs before saving
 *
 * /api/nginx/certificates/validate
 */
router
	.route('/validate')
	.options((req, res) => {
		res.sendStatus(204);
	})
	.all(jwtdecode())

	/**
	 * POST /api/nginx/certificates/validate
	 *
	 * Validate certificates
	 */
	.post((req, res, next) => {
		if (!req.files) {
			res.status(400)
				.send({error: 'No files were uploaded'});
		} else {
			internalCertificate.validate({
				files: req.files
			})
				.then((result) => {
					res.status(200)
						.send(result);
				})
				.catch(next);
		}
	});

module.exports = router;
