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import {
Constraint,
IOpenVpnConstraints,
IpVersion,
IWireguardConstraints,
RelayProtocol,
RelaySettingsNormalUpdate,
RelaySettingsUpdate,
TunnelProtocol,
} from './daemon-rpc-types';
import makeLocationBuilder, { ILocationBuilder } from './relay-location-builder';
interface IExactOrAny<T, Self> {
exact(value: T): Self;
any(): Self;
}
interface IOpenVPNConfigurator {
port: IExactOrAny<number, IOpenVPNConfigurator>;
protocol: IExactOrAny<RelayProtocol, IOpenVPNConfigurator>;
}
interface IWireguardConfigurator {
port: IExactOrAny<number, IWireguardConfigurator>;
ipVersion: IExactOrAny<IpVersion, IWireguardConfigurator>;
}
interface ITunnelProtocolConfigurator {
tunnelProtocol: IExactOrAny<TunnelProtocol, ITunnelProtocolConfigurator>;
}
interface ITunnelBuilder {
openvpn(
configurator: (openVpnConfigurator: IOpenVPNConfigurator) => void,
): NormalRelaySettingsBuilder;
wireguard(
configurator: (wireguardConfigurator: IWireguardConfigurator) => void,
): NormalRelaySettingsBuilder;
tunnelProtocol(
configurator: (tunnelProtocolConfigurator: ITunnelProtocolConfigurator) => void,
): NormalRelaySettingsBuilder;
}
class NormalRelaySettingsBuilder {
private payload: RelaySettingsNormalUpdate = {};
public build(): RelaySettingsUpdate {
return {
normal: this.payload,
};
}
get location(): ILocationBuilder<NormalRelaySettingsBuilder> {
return makeLocationBuilder(this, (location) => {
this.payload.location = location;
});
}
get tunnel(): ITunnelBuilder {
const updateOpenvpn = (next: Partial<IOpenVpnConstraints>) => {
if (this.payload.openvpnConstraints === undefined) {
this.payload.openvpnConstraints = next;
} else {
const prev = this.payload.openvpnConstraints;
this.payload.openvpnConstraints = {
...prev,
...next,
};
}
};
const updateWireguard = (next: Partial<IWireguardConstraints>) => {
if (this.payload.wireguardConstraints === undefined) {
this.payload.wireguardConstraints = next;
} else {
const prev = this.payload.wireguardConstraints;
this.payload.wireguardConstraints = {
...prev,
...next,
};
}
};
const updateTunnelProtocol = (next?: Constraint<TunnelProtocol>) => {
this.payload.tunnelProtocol = next;
};
return {
openvpn: (configurator: (configurator: IOpenVPNConfigurator) => void) => {
const openvpnBuilder: IOpenVPNConfigurator = {
get port() {
const apply = (port: Constraint<number>) => {
updateOpenvpn({ port });
return this;
};
return {
exact: (value: number) => apply({ only: value }),
any: () => apply('any'),
};
},
get protocol() {
const apply = (protocol: Constraint<RelayProtocol>) => {
updateOpenvpn({ protocol });
return this;
};
return {
exact: (value: RelayProtocol) => apply({ only: value }),
any: () => apply('any'),
};
},
};
configurator(openvpnBuilder);
return this;
},
wireguard: (configurator: (configurator: IWireguardConfigurator) => void) => {
const wireguardBuilder: IWireguardConfigurator = {
get port() {
const apply = (port: Constraint<number>) => {
updateWireguard({ port });
return this;
};
return {
exact: (value: number) => apply({ only: value }),
any: () => apply('any'),
};
},
get ipVersion() {
const apply = (ipVersion: Constraint<IpVersion>) => {
updateWireguard({ ipVersion });
return this;
};
return {
exact: (value: IpVersion) => apply({ only: value }),
any: () => apply('any'),
};
},
};
configurator(wireguardBuilder);
return this;
},
tunnelProtocol: (configurator: (configurator: ITunnelProtocolConfigurator) => void) => {
const tunnelProtocolBuilder = {
get tunnelProtocol() {
return {
exact: (value: TunnelProtocol) => {
updateTunnelProtocol({ only: value });
return this;
},
any: () => {
updateTunnelProtocol('any');
return this;
},
};
},
};
configurator(tunnelProtocolBuilder);
return this;
},
};
}
}
export default {
normal: () => new NormalRelaySettingsBuilder(),
};
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