require('./lib/startup')

var assert = require('assert')
  , async = require('async')
  , crypto = require('crypto')

function readfile(x) {
	return require('fs').readFileSync(__dirname + '/' + x)
}

module.exports = function() {
	var server = process.server
	var express = process.express

	describe('testexp_gzip', function() {
		before(function() {
			express.get('/testexp_gzip', function(req, res) {
				var x = eval(
					'(' + readfile('fixtures/publish.json5')
						.toString('utf8')
						.replace(/__NAME__/g, 'testexp_gzip')
						.replace(/__VERSION__/g, '0.0.1')
					+ ')'
				)

				// overcoming compress threshold
				x.versions['0.0.2'] = x.versions['0.0.1']
				x.versions['0.0.3'] = x.versions['0.0.1']
				x.versions['0.0.4'] = x.versions['0.0.1']
				x.versions['0.0.5'] = x.versions['0.0.1']
				x.versions['0.0.6'] = x.versions['0.0.1']
				x.versions['0.0.7'] = x.versions['0.0.1']
				x.versions['0.0.8'] = x.versions['0.0.1']
				x.versions['0.0.9'] = x.versions['0.0.1']

				require('zlib').gzip(JSON.stringify(x), function(err, buf) {
					assert(!err)
					assert.equal(req.headers['accept-encoding'], 'gzip')
					res.header('content-encoding', 'gzip')
					res.send(buf)
				})
			})

			express.get('/testexp_baddata', function(req, res) {
				assert.equal(req.headers['accept-encoding'], 'gzip')
				res.header('content-encoding', 'gzip')
				res.send(new Buffer([1,2,3,4,5,6,7,7,6,5,4,3,2,1]))
			})
		})

		it('should not fail on bad gzip', function(cb) {
			server.get_package('testexp_baddata', function(res, body) {
				assert.equal(res.statusCode, 404)
				cb()
			})
		})

		it('should understand gzipped data from uplink', function(cb) {
			server.get_package('testexp_gzip', function(res, body) {
				assert.equal(res.statusCode, 200)
				assert.equal(res.headers['content-encoding'], undefined)
				assert.equal(body.name, 'testexp_gzip')
				assert.equal(Object.keys(body.versions).length, 9)
				cb()
			})
		})

		it('should serve gzipped data', function(cb) {
			server.request({
				uri: '/testexp_gzip',
				encoding: null,
				headers: {
					'Accept-encoding': 'gzip',
				},
				json: false,
			}, function(err, res, body) {
				assert.equal(res.statusCode, 200)
				assert.equal(res.headers['content-encoding'], 'gzip')
				assert.throws(function() {
					JSON.parse(body.toString('utf8'))
				})
				require('zlib').gunzip(body, function(err, buf) {
					assert(!err)
					body = JSON.parse(buf)
					assert.equal(body.name, 'testexp_gzip')
					assert.equal(Object.keys(body.versions).length, 9)
					cb()
				})
			})
		})
	})
}