class KeyActionFactory {

    static fromJsObject(jsObject: any): KeyAction {
        switch (jsObject.keyActionType) {
            case NoneAction.keyActionTypeString:
                return new NoneAction().fromJsObject(jsObject);
            case KeystrokeAction.keyActionTypeString:
                return new KeystrokeAction().fromJsObject(jsObject);
            case KeystrokeWithModifiersAction.keyActionTypeString:
                return new KeystrokeWithModifiersAction().fromJsObject(jsObject);
            case DualRoleKeystrokeAction.keyActionTypeString:
                return new DualRoleKeystrokeAction().fromJsObject(jsObject);
            case SwitchLayerAction.keyActionTypeString:
                return new SwitchLayerAction().fromJsObject(jsObject);
            case SwitchKeymapAction.keyActionTypeString:
                return new SwitchKeymapAction().fromJsObject(jsObject);
            case MouseAction.keyActionTypeString:
                return new MouseAction().fromJsObject(jsObject);
            default:
                throw `Invalid KeyAction.keyActionType: "${jsObject.actionType}"`;
        }
    }

    static fromBinary(buffer: UhkBuffer): KeyAction {
        let keyActionFirstByte = buffer.readUInt8();
        buffer.backtrack();

        switch (keyActionFirstByte) {
            case KeyActionId.NoneAction:
                return new NoneAction().fromBinary(buffer);
            case KeyActionId.KeystrokeAction:
                return new KeystrokeAction().fromBinary(buffer);
            case KeyActionId.KeystrokeWithModifiersAction:
                return new KeystrokeWithModifiersAction().fromBinary(buffer);
            case KeyActionId.DualRoleKeystrokeAction:
                return new DualRoleKeystrokeAction().fromBinary(buffer);
            case KeyActionId.SwitchLayerAction:
                return new SwitchLayerAction().fromBinary(buffer);
            case KeyActionId.SwitchKeymapAction:
                return new SwitchKeymapAction().fromBinary(buffer);
            case KeyActionId.MouseAction:
                return new MouseAction().fromBinary(buffer);
            default:
                throw `Invalid KeyAction first byte: ${keyActionFirstByte}`;
        }
    }
}