'use strict';

var commandLineArgs = require('command-line-args');
var commandLineUsage = require('command-line-usage');

var commandLineDefs = [
    { name: 'help', alias: 'h', type: Boolean, description: 'Show this help' },
    { name: 'config', alias: 'c', type: String, description: 'Location of config.json' },
    { name: 'version', alias: 'v', type: Boolean, description: 'Show ffffng version' }
];

var commandLineOptions;
try {
    commandLineOptions = commandLineArgs(commandLineDefs);
} catch (e) {
    console.error(e.message);
    console.error('Try \'--help\' for more information.');
    process.exit(1);
}

var fs = require('graceful-fs');

var packageJsonFile = __dirname + '/../package.json';
var version = 'unknown';
if (fs.existsSync(packageJsonFile)) {
    version = JSON.parse(fs.readFileSync(packageJsonFile, 'utf8')).version;
}

function usage() {
    console.log(commandLineUsage([
        {
            header: 'ffffng - ' + version + ' - Freifunk node management form',
            optionList: commandLineDefs
        }
    ]));
}

if (commandLineOptions.help) {
    usage();
    process.exit(0);
}

if (commandLineOptions.version) {
    console.log('ffffng - ' + version);
    process.exit(0);
}

if (!commandLineOptions.config) {
    usage();
    process.exit(1);
}

var deepExtend = require('deep-extend');

var defaultConfig = {
    server: {
        baseUrl: 'http://localhost:8080',
        port: 8080,

        databaseFile: '/tmp/ffffng.sqlite',
        peersPath: '/tmp/peers',

        logging: {
            directory: '/tmp/logs',
            debug: false,
            profile: false,
            logRequests: false
        },

        internal: {
            active: false,
            user: 'admin',
            password: 'secret'
        },

        email: {
            from: 'Freifunk Knotenformular <no-reply@musterstadt.freifunk.net>',

            // For details see: https://nodemailer.com/2-0-0-beta/setup-smtp/
            smtp: {
                host: 'mail.example.com',
                port: '465',
                secure: true,
                auth: {
                    user: 'user@example.com',
                    pass: 'pass'
                }
            }
        },

        map: {
            nodesJsonUrl: ['http://map.musterstadt.freifunk.net/nodes.json']
        }
    },
    client: {
        community: {
            name: 'Freifunk Musterstadt',
            domain: 'musterstadt.freifunk.net',
            contactEmail: 'kontakt@musterstadt.freifunk.net',
            sites: [],
            domains: []
        },
        legal: {
            privacyUrl: null,
            imprintUrl: null
        },
        map: {
            mapUrl: 'http://map.musterstadt.freifunk.net'
        },
        monitoring: {
            enabled: false
        },
        coordsSelector: {
            showInfo: false,
            showBorderForDebugging: false,
            localCommunityPolygon: [],
            lat: 53.565278,
            lng: 10.001389,
            defaultZoom: 10,
            layers: {}
        }
    }
};

var configJSONFile = commandLineOptions.config;
var configJSON = {};

if (fs.existsSync(configJSONFile)) {
    configJSON = JSON.parse(fs.readFileSync(configJSONFile, 'utf8'));
} else {
    console.error('config.json not found: ' + configJSONFile);
    process.exit(1);
}

var _ = require('lodash');

function stripTrailingSlash(obj, field) {
    var url = obj[field];
    if (_.isString(url) && _.last(url) === '/') {
        obj[field] = url.substr(0, url.length - 1);
    }
}

var config = deepExtend({}, defaultConfig, configJSON);

stripTrailingSlash(config.server, 'baseUrl');
stripTrailingSlash(config.client.map, 'mapUrl');

var url = require('url');
config.server.rootPath = url.parse(config.server.baseUrl).pathname;
config.client.rootPath = config.server.rootPath;

module.exports = config;

angular.module('ffffng').constant('config', config);
angular.module('ffffng').constant('version', version);