'use strict';
'require fs';
'require form';
'require tools.widgets as widgets';
'require uci';
'require ui';
'require view';
'require view.zapret2.tools as tools';

document.head.appendChild(E('link', {
    rel: 'stylesheet',
    href: L.resource('view/zapret2/styles.css')
}));

return view.extend({
    svc_info: null,

    load: function()
    {
        return tools.baseLoad(this, (data) => {
            //console.log('SYS FEATURES: '+JSON.stringify(data.sys_feat));
            tools.load_feat_env();
            return data;
        });
    },

    render: function(data)
    {
        if (!data) {
            return;
        }
        this.svc_info = data.svc_info;
        tools.execDefferedAction(this.svc_info);

        let m, s, o, tabname;

        m = new form.Map(tools.appName, tools.AppName + ' - ' + _('Settings'));

        s = m.section(form.NamedSection, 'config');
        s.anonymous = true;
        s.addremove = false;

        /* Main settings tab */

        tabname = 'main_settings'; 
        s.tab(tabname, _('Main settings'));

        o = s.taboption(tabname, form.ListValue, 'FWTYPE', _('FWTYPE'));
        o.value('nftables', 'nftables');
        //o.value('iptables', 'iptables');
        //o.value('ipfw',     'ipfw');

        o = s.taboption(tabname, form.Flag, 'POSTNAT', _('POSTNAT'));
        o.rmempty = false;
        o.default = 1;

        o = s.taboption(tabname, form.ListValue, 'FLOWOFFLOAD', _('FLOWOFFLOAD'));
        o.value('donttouch', 'donttouch');
        o.value('none',      'none');
        o.value('software',  'software');
        o.value('hardware',  'hardware');

        o = s.taboption(tabname, form.Flag, 'INIT_APPLY_FW', _('INIT_APPLY_FW'));
        o.rmempty = false;
        o.default = 0;

        o = s.taboption(tabname, form.Flag, 'DISABLE_IPV4', _('DISABLE_IPV4'));
        o.rmempty = false;
        o.default = 1;

        o = s.taboption(tabname, form.Flag, 'DISABLE_IPV6', _('DISABLE_IPV6'));
        o.rmempty = false;
        o.default = 0;

        o = s.taboption(tabname, form.Flag, 'FILTER_TTL_EXPIRED_ICMP', 'FILTER_TTL_EXPIRED_ICMP');
        o.rmempty = false;
        o.default = 1;

        //o = s.taboption(tabname, form.ListValue, 'MODE_FILTER', _('MODE_FILTER'));
        //o.value('none',         'none');
        //o.value('ipset',        'ipset');
        //o.value('hostlist',     'hostlist');
        //o.value('autohostlist', 'autohostlist');

        o = s.taboption(tabname, form.Value, 'WS_USER', _('WS_USER'));
        o.rmempty  = false;
        o.datatype = 'string';

        o = s.taboption(tabname, form.Flag, 'DAEMON_LOG_ENABLE', _('DAEMON_LOG_ENABLE'));
        o.rmempty = false;
        o.default = 0;

        let current_size = uci.get(tools.appName, 'config', 'DAEMON_LOG_SIZE_MAX') || '0';
        let has_valid_value = false;
        let size_list = [ 500, 1000, 1500, 2000, 2500, 3000, 4000, 5000, 7000 ];
        if (current_size && current_size != '0') {
            try {
                current_size = parseInt(current_size, 10); 
                if (!isNaN(current_size) && current_size > 0) {
                    has_valid_value = true;
                    if (!size_list.includes(current_size)) {
                        size_list.push(current_size);
                        size_list.sort((a, b) => a - b);
                    }
                }
            } catch(e) {
                has_valid_value = false;
            }    
        }
        o = s.taboption(tabname, form.ListValue, 'DAEMON_LOG_SIZE_MAX', _('DAEMON_LOG_SIZE_MAX'));
        o.rmempty = false;
        if (!has_valid_value) {
            o.value('', '');
            o.default = '';
        }
        for (let idx = 0; idx < size_list.length; idx++) {
            let fsize = size_list[idx];
            o.value('' + fsize, fsize + ' KB');
            if (has_valid_value && fsize === current_size) {
                o.default = '' + fsize;
            }
        }
        o.validate = function(section_id, value) {
            if (!value || value === '') {
                return _('Please select maximum log size');
            }
            return true;
        };

        /* NFQWS_OPT_DESYNC tab */

        tabname = 'nfqws_params';
        if (tools.appName == 'zapret2') {
            s.tab(tabname, _('NFQWS2 options'));
        } else {
            s.tab(tabname, _('NFQWS options'));
        }

        let add_delim = function(sec, url = null) {
            let o = sec.taboption(tabname, form.DummyValue, '_hr');
            o.rawhtml = true;
            o.default = '<hr style="width: 620px; height: 1px; margin: 1px 0 1px; border-top: 1px solid;">';
            if (url) {
                o.default += '<br/>' + _('Help') + ': <a target=_blank href=%s>%s</a>'.format(url);
            }
        };

        let add_param = function(sec, param, locname = null, rows = 10, multiline = false) {
            if (!locname)
                locname = param;
            let btn = sec.taboption(tabname, form.Button, '_' + param + '_btn', locname);
            btn.inputtitle = _('Edit');
            btn.inputstyle = 'edit btn';
            let val = sec.taboption(tabname, form.TextValue, '_' + param);
            val.readonly = true;
            val.rows = rows + 5;
            val.wrap = false;
            val.cfgvalue = function(section_id) {
                let value = uci.get(tools.appName, section_id, param);
                if (value == null) {
                    return "";
                }
                value = value.trim();
                if (multiline == 2) {
                    value = value.replace(/\n  --/g, "\n--");
                    value = value.replace(/\n --/g, "\n--");
                    value = value.replace(/ --/g, "\n--");
                }
                return value;
            };
            val.validate = function(section_id, value) {
                return true;
            };
            let desc = locname;
            if (multiline == 2) {
                desc += '<br/>' + _('Example') + ': <a target=_blank href=%s>%s</a>'.format(tools.nfqws_opt_url);
            }
            btn.onclick = () => new tools.longstrEditDialog({
                cfgsec: 'config',
                cfgparam: param,
                title: param,
                desc: desc,
                rows: rows,
                multiline: multiline,
            }).show();
        };

        if (tools.appName == 'zapret2') {
            o = s.taboption(tabname, form.Flag, 'NFQWS2_ENABLE', _('NFQWS2_ENABLE'));
        } else {
            o = s.taboption(tabname, form.Flag, 'NFQWS_ENABLE', _('NFQWS_ENABLE'));
        }
        o.rmempty = false;
        o.default = 1;

        o = s.taboption(tabname, form.Value, 'DESYNC_MARK', _('DESYNC_MARK'));
        //o.description = _("nfqws option for DPI desync attack");
        o.rmempty     = false;
        o.datatype    = 'string';

        o = s.taboption(tabname, form.Value, 'DESYNC_MARK_POSTNAT', _('DESYNC_MARK_POSTNAT'));
        //o.description = _("nfqws option for DPI desync attack");
        o.rmempty     = false;
        o.datatype    = 'string';

        o = s.taboption(tabname, form.Value, 'FILTER_MARK', _('FILTER_MARK'));
        o.rmempty     = false;
        o.validate = function(section_id, value) { return true; };
        o.write = function(section_id, value) { return form.Value.prototype.write.call(this, section_id, (value == null || value.trim() == '') ? "\t" : value.trim()); };
        
        if (tools.appName == 'zapret2') {
            o = s.taboption(tabname, form.Value, 'NFQWS2_PORTS_TCP', _('NFQWS2_PORTS_TCP'));
        } else {
            o = s.taboption(tabname, form.Value, 'NFQWS_PORTS_TCP', _('NFQWS_PORTS_TCP'));
        }
        o.rmempty     = false;
        o.datatype    = 'string';

        if (tools.appName == 'zapret2') {
            o = s.taboption(tabname, form.Value, 'NFQWS2_PORTS_UDP', _('NFQWS2_PORTS_UDP'));
        } else {
            o = s.taboption(tabname, form.Value, 'NFQWS_PORTS_UDP', _('NFQWS_PORTS_UDP'));
        }
        o.rmempty     = false;
        o.datatype    = 'string';

        if (tools.appName == 'zapret2') {
            o = s.taboption(tabname, form.Value, 'NFQWS2_TCP_PKT_OUT', _('NFQWS2_TCP_PKT_OUT'));
        } else {
            o = s.taboption(tabname, form.Value, 'NFQWS_TCP_PKT_OUT', _('NFQWS_TCP_PKT_OUT'));
        }
        o.rmempty     = false;
        o.datatype    = 'string';

        if (tools.appName == 'zapret2') {
            o = s.taboption(tabname, form.Value, 'NFQWS2_TCP_PKT_IN', _('NFQWS2_TCP_PKT_IN'));
        } else {
            o = s.taboption(tabname, form.Value, 'NFQWS_TCP_PKT_IN', _('NFQWS_TCP_PKT_IN'));
        }
        o.rmempty     = false;
        o.datatype    = 'string';

        if (tools.appName == 'zapret2') {
            o = s.taboption(tabname, form.Value, 'NFQWS2_UDP_PKT_OUT', _('NFQWS2_UDP_PKT_OUT'));
        } else {
            o = s.taboption(tabname, form.Value, 'NFQWS_UDP_PKT_OUT', _('NFQWS_UDP_PKT_OUT'));
        }
        o.rmempty     = false;
        o.datatype    = 'string';

        if (tools.appName == 'zapret2') {
            o = s.taboption(tabname, form.Value, 'NFQWS2_UDP_PKT_IN', _('NFQWS2_UDP_PKT_IN'));
        } else {
            o = s.taboption(tabname, form.Value, 'NFQWS_UDP_PKT_IN', _('NFQWS_UDP_PKT_IN'));
        }
        o.rmempty     = false;
        o.datatype    = 'string';

        if (tools.appName == 'zapret2') {
            o = s.taboption(tabname, form.Value, 'NFQWS2_PORTS_TCP_KEEPALIVE', _('NFQWS2_PORTS_TCP_KEEPALIVE'));
        } else {
            o = s.taboption(tabname, form.Value, 'NFQWS_PORTS_TCP_KEEPALIVE', _('NFQWS_PORTS_TCP_KEEPALIVE'));
        }
        o.rmempty     = false;
        o.datatype    = 'uinteger';

        if (tools.appName == 'zapret2') {
            o = s.taboption(tabname, form.Value, 'NFQWS2_PORTS_UDP_KEEPALIVE', _('NFQWS2_PORTS_UDP_KEEPALIVE'));
        } else {
            o = s.taboption(tabname, form.Value, 'NFQWS_PORTS_UDP_KEEPALIVE', _('NFQWS_PORTS_UDP_KEEPALIVE'));
        }
        o.rmempty     = false;
        o.datatype    = 'uinteger';

        add_delim(s, tools.nfqws_opt_url);
        if (tools.appName == 'zapret2') {
            add_param(s, 'NFQWS2_OPT', null, 21, 2);
        } else {
            add_param(s, 'NFQWS_OPT', null, 21, 2);
        }
        
        /* AutoHostList settings */

        tabname = 'autohostlist_tab'; 
        s.tab(tabname, _('AutoHostList'));

        o = s.taboption(tabname, form.Flag, 'MODE_FILTER', _('Use AutoHostList mode'));
        o.rmempty = false;
        o.default = '0';
        o.validate = function(section_id, value) { return true; };
        o.load = function(section_id) {
            return uci.load(tools.appName).then(L.bind(function() {
                var v = uci.get(tools.appName, section_id, 'MODE_FILTER');
                return (v === 'autohostlist') ? '1' : '0';
            }, this));
        };
        o.write = function(section_id, value) {
            return uci.set(tools.appName, section_id, 'MODE_FILTER', value === '1' ? 'autohostlist' : 'hostlist');
        };

        if (tools.appName == 'zapret2') {
            o = s.taboption(tabname, form.Value, 'AUTOHOSTLIST_INCOMING_MAXSEQ', _('INCOMING_MAXSEQ'));
            o.rmempty     = false;
            o.datatype    = 'uinteger';

            o = s.taboption(tabname, form.Value, 'AUTOHOSTLIST_RETRANS_MAXSEQ', _('RETRANS_MAXSEQ'));
            o.rmempty     = false;
            o.datatype    = 'uinteger';

            o = s.taboption(tabname, form.Value, 'AUTOHOSTLIST_RETRANS_RESET', _('RETRANS_RESET'));
            o.rmempty     = false;
            o.datatype    = 'uinteger';
        }
        
        o = s.taboption(tabname, form.Value, 'AUTOHOSTLIST_RETRANS_THRESHOLD', _('RETRANS_THRESHOLD'));
        o.rmempty     = false;
        o.datatype    = 'uinteger';

        o = s.taboption(tabname, form.Value, 'AUTOHOSTLIST_FAIL_THRESHOLD', _('FAIL_THRESHOLD'));
        o.rmempty     = false;
        o.datatype    = 'uinteger';

        o = s.taboption(tabname, form.Value, 'AUTOHOSTLIST_FAIL_TIME', _('FAIL_TIME'));
        o.rmempty     = false;
        o.datatype    = 'uinteger';

        if (tools.appName == 'zapret2') {
            o = s.taboption(tabname, form.Value, 'AUTOHOSTLIST_UDP_IN', _('UDP_IN'));
            o.rmempty     = false;
            o.datatype    = 'uinteger';

            o = s.taboption(tabname, form.Value, 'AUTOHOSTLIST_UDP_OUT', _('UDP_OUT'));
            o.rmempty     = false;
            o.datatype    = 'uinteger';
        }

        o = s.taboption(tabname, form.Button, '_auto_host_btn', _('Auto host list entries'));
        o.inputtitle = _('Edit');
        o.inputstyle = 'edit btn';
        o.description = tools.autoHostListFN;
        o.onclick = () => new tools.fileEditDialog({
            file: tools.autoHostListFN,
            title: _('Auto host list'),
            desc: '',
            rows: 15,
        }).show();

        o = s.taboption(tabname, form.Flag, 'AUTOHOSTLIST_DEBUGLOG', _('DEBUGLOG'));
        o.rmempty     = false;
        o.default     = 0;

        o = s.taboption(tabname, form.Button, '_auto_host_debug_btn', _('Auto host debug list entries'));
        o.inputtitle = _('Edit');
        o.inputstyle = 'edit btn';
        o.description = tools.autoHostListDbgFN;
        o.onclick = () => new tools.fileEditDialog({
            file: tools.autoHostListDbgFN,
            title: _('Auto host debug list'),
            desc: '',
            rows: 15,
        }).show();
        
        /* HostList settings */

        tabname = 'hostlist_tab'; 
        s.tab(tabname, _('Host lists'));

        o = s.taboption(tabname, form.Button, '_google_entries_btn', _('Google hostname entries'));
        o.inputtitle = _('Edit');
        o.inputstyle = 'edit btn';
        o.description = tools.hostsGoogleFN;
        o.onclick = () => new tools.fileEditDialog({
            file: tools.hostsGoogleFN,
            title: _('Google hostname entries'),
            desc: _('One hostname per line.<br />Examples:'),
            aux: '<code>youtube.com<br />googlevideo.com</code>',
            rows: 15,
        }).show();

        o = s.taboption(tabname, form.Button, '_user_entries_btn', _('User hostname entries <HOSTLIST>'));
        o.inputtitle = _('Edit');
        o.inputstyle = 'edit btn';
        o.description = tools.hostsUserFN;
        o.onclick = () => new tools.fileEditDialog({
            file: tools.hostsUserFN,
            title: _('User entries'),
            desc: _('One hostname per line.<br />Examples:'),
            aux: '<code>domain.net<br />sub.domain.com<br />facebook.com</code>',
            rows: 15,
        }).show();

        o = s.taboption(tabname, form.Button, '_user_excluded_entries_btn', _('User excluded hostname entries'));
        o.inputtitle = _('Edit');
        o.inputstyle = 'edit btn';
        o.description = tools.hostsUserExcludeFN;
        o.onclick = () => new tools.fileEditDialog({
            file: tools.hostsUserExcludeFN,
            title: _('User excluded entries'),
            desc: _('One hostname per line.<br />Examples:'),
            aux: '<code>domain.net<br />sub.domain.com<br />gosuslugi.ru</code>',
            rows: 15,
        }).show();
        
        add_delim(s);

        o = s.taboption(tabname, form.Button, '_ip_exclude_filter_btn', _('Excluded IP entries'));
        o.inputtitle = _('Edit');
        o.inputstyle = 'edit btn';
        o.description = tools.iplstExcludeFN;
        o.onclick = () => new tools.fileEditDialog({
            file: tools.iplstExcludeFN,
            title: _('Excluded IP filter'),
            desc: _('Patterns can be strings or regular expressions. Each pattern in a separate line<br />Examples:'),
            aux: '<code>128.199.0.0/16<br />34.217.90.52<br />162.13.190.77</code>',
            rows: 15,
        }).show();

        o = s.taboption(tabname, form.Button, '_user_ip_filter_btn', _('User IP entries'));
        o.inputtitle = _('Edit');
        o.inputstyle = 'edit btn';
        o.description = tools.iplstUserFN;
        o.onclick = () => new tools.fileEditDialog({
            file: tools.iplstUserFN,
            title: _('User IP filter'),
            desc: _('Patterns can be strings or regular expressions. Each pattern in a separate line<br />Examples:'),
            aux: '<code>128.199.0.0/16<br />34.217.90.52<br />162.13.190.77</code>',
            rows: 15,
        }).show();

        o = s.taboption(tabname, form.Button, '_user_excluded_ip_filter_btn', _('User excluded IP entries'));
        o.inputtitle = _('Edit');
        o.inputstyle = 'edit btn';
        o.description = tools.iplstUserExcludeFN;
        o.onclick = () => new tools.fileEditDialog({
            file: tools.iplstUserExcludeFN,
            title: _('User excluded IP filter'),
            desc: _('Patterns can be strings or regular expressions. Each pattern in a separate line<br />Examples:'),
            aux: '<code>128.199.0.0/16<br />34.217.90.52<br />162.13.190.77</code>',
            rows: 15,
        }).show();
        
        add_delim(s);
        
        for (let num = 1; num <= tools.custFileMax; num++) {
            let fn = tools.custFileTemplate.format(num.toString());
            let name = _('Custom file #' + num);
            o = s.taboption(tabname, form.Button, '_cust_file%d_btn'.format(num), name);
            o.inputtitle = _('Edit');
            o.inputstyle = 'edit btn';
            o.description = fn;
            o.onclick = () => new tools.fileEditDialog({ file: fn, title: name, rows: 15}).show();
        }

        /* custom.d files */

        tabname = 'custom_d_tab'; 
        s.tab(tabname, 'custom.d');

        o = s.taboption(tabname, form.Flag, 'DISABLE_CUSTOM', _('Use custom.d scripts'));
        o.rmempty = false;
        o.default = '0';
        o.validate = function(section_id, value) { return true; };
        o.load = function(section_id) {
            return uci.load(tools.appName).then(L.bind(function() {
                var v = uci.get(tools.appName, section_id, 'DISABLE_CUSTOM');
                return (v === '1') ? '0' : '1';
            }, this));
        };
        o.write = function(section_id, value) {
            return uci.set(tools.appName, section_id, 'DISABLE_CUSTOM', value === '1' ? '0' : '1');
        };

        add_delim(s);
        
        for (let i = 0; i < tools.customdPrefixList.length; i++) {
            let num = tools.customdPrefixList[i];
            let fn = tools.customdFileFormat.format(num.toString());
            let name = _('custom.d script #' + num);
            o = s.taboption(tabname, form.Button, '_customd_file%d_btn'.format(num), name);
            o.inputtitle = _('Edit');
            o.inputstyle = 'edit btn';
            o.description = fn;
            let desc = '';
            if (num == tools.discord_num) {
                desc = _('Example') + ': ';
                for (let k = 0; k < tools.discord_url.length; k++) {
                    let url = tools.discord_url[k];
                    if (k > 0) desc += ' <br> ';
                    const filename = url.substring(url.lastIndexOf("/") + 1).split("?")[0];
                    desc += '<a target=_blank href=' + url + '>' + filename + '</a>';
                }
            }
            o.onclick = () => new tools.fileEditDialog({ file: fn, title: name, desc: desc, rows: 15}).show();
        }

        let map_promise = m.render();
        map_promise.then(node => node.classList.add('fade-in'));
        return map_promise;
    },

    handleSaveApply: function(ev, mode)
    {
        return this.handleSave(ev).then(() => {
            let apply_exec = tools.checkUnsavedChanges();
            if (apply_exec) {
                ui.changes.apply(mode == '0');
                tools.setDefferedAction('restart', this.svc_info);
            } else {
                if (this.svc_info?.dmn.inited) {
                    tools.serviceActionEx('restart');
                }
            }
        });
    },
});