'use strict';

var defaults = {
	baseUrl: 'https://dns.api.gandi.net/api/v5/'
};

module.exports.create = function (config) {
	var baseUrl = (config.baseUrl || defaults.baseUrl).replace(/\/$/, '');
	var authtoken = config.token;
	var request;

	return {
		init: function (opts) {
			request = opts.request;
			return null;
		},

		zones: function (opts) {
			console.log(opts);

			return request({
				method: 'GET',
				url: baseUrl + '/zones',
				headers: {
					'X-Api-Key': authtoken
				},
				json: true
			}).then(function (resp) {
				return resp.body.map(function (zone) {
					return zone.name;
				});;
			});;
		},

		set: function (opts) {
			console.log(opts);

			return request({
				method: 'GET',
				url: baseUrl + '/domains/' + opts.challenge.dnsZone + '/records/' + opts.challenge.dnsPrefix + '/TXT',
				headers: {
					'X-Api-Key': authtoken
				},
				json: true
			}).then(function (resp) {
				if (resp.body.cause === 'Not Found') {
					return request({
						method: 'POST',
						url: baseUrl + '/domains/' + opts.challenge.dnsZone + '/records',
						headers: {
							'X-Api-Key': authtoken
						},
						json: {
							'rrset_name': opts.challenge.dnsPrefix,
							'rrset_type': 'TXT',
							'rrset_ttl': 300,
							'rrset_values': [opts.challenge.dnsAuthorization]
						}
					})
				} else {
					const body = resp.body
					let value = body.rrset_values.map(x => JSON.parse(x))

					if (body.rrset_values) {
						return request({
							method: 'PUT',
							url: baseUrl + '/domains/' + opts.challenge.dnsZone + '/records/' + opts.challenge.dnsPrefix + '/TXT',
							headers: {
								'X-Api-Key': authtoken
							},
							json: {
								'rrset_ttl': 300,
								'rrset_values': value.concat([opts.challenge.dnsAuthorization])
							}
						})
					}
				}
			});;
		},

		remove: function (opts) {
			console.log(opts);

			return request({
				method: 'DELETE',
				url: baseUrl + '/domains/' + opts.challenge.dnsZone + '/records/' + opts.challenge.dnsPrefix + '/TXT',
				headers: {
					'X-Api-Key': authtoken
				},
				json: true
			})
		},

		get: function (opts) {
			console.log(opts);

			return request({
				method: 'GET',
				url: baseUrl + '/domains/' + opts.challenge.dnsZone + '/records/' + opts.challenge.dnsPrefix,
				headers: {
					'X-Api-Key': authtoken
				},
				json: true
			}).then(function (resp) {
				const body = resp.body
				if (body.length > 0) {
					let value = body[0].rrset_values.map(x => JSON.parse(x)).filter(field => field === opts.challenge.dnsAuthorization)
					if (value !== []) {
						return {
							dnsAuthorization: value[0]
						}
					} else {
						return null
					}
				} else {
					return null
				}
			})
		}
	}
};