import { AxdrOctetString } from "../asn1.axdr/AxdrOctetString";
import { Apdu } from "../axdr/Apdu";
import { M698pdu } from "../axdr/M698pdu";
import { MAC } from "../axdr/MAC";
import { RN } from "../axdr/RN";
import { RN_MAC } from "../axdr/RN_MAC";
import { Security_Request, SubChoiceAppUnit, SubChoiceDataValid } from "../axdr/Security_Request";
import { SID } from "../axdr/SID";
import { SID_MAC } from "../axdr/SID_MAC";
import { Unsigned32 } from "../axdr/Unsigned32";
import { DataUtils } from "../DataUtils";
import { LinkOption } from "../opt/LinkOption";
import { RequestOption } from "../opt/RequestOption";
import { SecurityRequestOption } from "../opt/SecurityRequestOption";
import { buildLinkFrame } from "./BuildTools";
import { resultCode } from "../tools/DataTool";

export function buildSecurityRequest(sec_opt: SecurityRequestOption, link_opt: LinkOption, req_opt: RequestOption): [number, String] {
    let result: [number, String];
    if (sec_opt.dataValidChoice == null || sec_opt.appUnitChoice == null) {
        result = [resultCode.emptyError, "param is not allow empty"];
        return result;
    }
    if (req_opt.time_tag == true) {
        result = [resultCode.illegalError, "security request not allow timetag"];
        return result;
    }
    let m698pdu = new M698pdu();
    let security_request = new Security_Request();
    let subChoiceAppUnit = new SubChoiceAppUnit();
    let dataVaild = new SubChoiceDataValid();
    if (sec_opt.appUnitChoice == 1) {
        let cipher_unit = new AxdrOctetString();
        cipher_unit.set_dataCode(DataUtils.toBytes(sec_opt.appDataUnit.toString()));
        subChoiceAppUnit.setAppUnit(cipher_unit);
    } else if (sec_opt.appUnitChoice == 0) {
        let plain_unit = new AxdrOctetString();
        plain_unit.set_dataCode(DataUtils.toBytes(sec_opt.appDataUnit.toString()));
        subChoiceAppUnit.setAppUnitPalin(plain_unit);
    } else {
        throw new Error("no such index");
    }
    if (sec_opt.dataValidChoice == 1) {
        let rn = new RN();
        rn.set_oct_string(DataUtils.toBytes(sec_opt.rn.oct.toString()));
        dataVaild.setRn(rn);
    } else if (sec_opt.dataValidChoice == 2) {
        let rn_mac = new RN_MAC();
        let rn = new RN();
        let mac = new MAC();
        rn.set_oct_string(DataUtils.toBytes(sec_opt.rn_mac.oct.toString()));
        mac.set_oct_string(DataUtils.toBytes(sec_opt.rn_mac.mac.toString()));
        rn_mac.set_all(rn, mac);
        dataVaild.setRnMac(rn_mac);
    } else if (sec_opt.dataValidChoice == 3) {
        let sid = new SID();
        let inid = new Unsigned32();
        let fdata = new AxdrOctetString();
        inid.set_dataCode(DataUtils.toBytes(sec_opt.sid.sid.toString()));
        fdata.set_dataCode(DataUtils.toBytes(sec_opt.sid.attachData.toString()));
        sid.set_all(inid, fdata);
        dataVaild.setSID(sid);
    } else if (sec_opt.dataValidChoice == 0) {
        let sid_mac = new SID_MAC();
        let sid = new SID();
        let mac = new MAC();
        let inid = new Unsigned32();
        let fdata = new AxdrOctetString();
        inid.set_dataCode(DataUtils.toBytes(sec_opt.sid_mac.sid.toString()));
        fdata.set_dataCode(DataUtils.toBytes(sec_opt.sid_mac.attachData.toString()));
        sid.set_all(inid, fdata);
        mac.set_oct_string(DataUtils.toBytes(sec_opt.sid_mac.mac.toString()));
        sid_mac.set_all(sid, mac);
        dataVaild.setSidMac(sid_mac);
    } else {
        throw new Error("no such index");
    }
    security_request.set_all(subChoiceAppUnit, dataVaild);
    m698pdu.setSecurity_Request(security_request);
    let apdu = new Apdu(m698pdu);
    let frame = buildLinkFrame(apdu, link_opt, req_opt);
    result = [resultCode.success, frame]
    return result;
}