[WIP] code reformat

.version

@@ -1 +1 @@
-3.1.2
+4.0.0

README.md

@@ -7,12 +7,20 @@
 
 ncs-netsim is a great tool, but it lack of following features which are developed as part of netsim-wrapper
 
-- netsim-wrapper features  
-  - delete-devices \<device-names>
-  - create-network-from [ yaml | json ] \<filename>
-  - create-device-from [ yaml | json ] \<filename>
-  - create-network-template [ yaml | json ]
-  - create-device-template [ yaml | json ]
+```python
+Usage nwrap template create [network | device] [yaml | json] [<fileName>]
+            template load <fileName> [<username> <password>]
+            download <username> <password> link
+            delete-devices <DeviceNames>
+            -v  | --version
+            -vv | --verbose
+            -h  | --help
+
+nwrap is an alias of `netsim-wrapper` and you can pass
+multiple devnames instead of single devname, eg. start, stop, ...
+
+Additionally we support all `ncs-netsim` commands
+```
 
 netsim-wrapper is a wrapper on top of ncs-netsim with added features. It's written in python and we opened the space to add more features to it.
 
@@ -33,6 +41,66 @@ ncs-netsim, It's a powerful tool to build a simulated network environment for Ne
 
 netsim-wrapper, An open space to automate the ncs-netsim.
 
+You can build your netsim network using JSON/YAML templates as follows
+
+**creating device using YAML file**
+```
+nso-packages-path: ./nso-run/package
+download-neds: false
+neds:
+- https://earth.tail-f.com:8443/ncs-pkgs/cisco-ios/5.7.1/ncs-5.7.1-cisco-ios-6.79.signed.bin
+compile-neds: false
+packages-reload: false
+start-devices: true
+add-to-nso: true
+add-authgroup-to-nso: false
+authgroup:
+  type: local
+  path: ./custom_authgroup.xml
+device-mode:
+  name-based:
+    cisco-ios-cli-6.79:
+    - device-ios0
+    - device-ios1
+load-day0-config: false
+config-path: ../day0/
+config-files:
+- device_ios0_interface.cfg
+- device_ios1_interface.cfg
+```
+
+**creating network using JSON format**
+```
+{
+  "nso-packages-path": "./nso-run/packages",
+  "download-neds": true,
+  "neds": [
+    "https://earth.tail-f.com:8443/ncs-pkgs/cisco-ios/5.7.1/ncs-5.7.1-cisco-ios-6.79.signed.bin"
+  ],
+  "compile-neds": true,
+  "packages-reload": true,
+  "start-devices": true,
+  "add-to-nso": true,
+  "add-authgroup-to-nso": true,
+  "authgroup": {
+    "type": "system"
+  },
+  "device-mode": {
+    "prefix-based": {
+      "cisco-ios-cli-6.79": {
+        "count": 2,
+        "prefix": "network-ios"
+      }
+    }
+  },
+  "load-day0-config": true,
+  "config-path": "./day0/",
+  "config-files": [
+    "network_ios0_interface.cfg",
+    "network_ios1_interface.cfg"
+  ]
+}
+```
 ## Pre-requisites
 
 - ncs-netsim command must be reconginsed by the terminal.

netsim_wrapper/main.py

@@ -0,0 +1,31 @@
+import sys
+from logging import DEBUG
+
+from netsim_wrapper.nwrap import NWrap
+
+
+def check_verbose(params):
+    nwrap = None
+    if '-vv' in params:
+        nwrap = NWrap(level=DEBUG)
+        params.remove('-vv')
+    if '--verbose' in params:
+        nwrap = NWrap(level=DEBUG)
+        params.remove('--verbose')
+    return nwrap, params
+
+
+def nwrap():
+    nwrap, params = check_verbose(sys.argv)
+    if nwrap == None: nwrap = NWrap()
+
+    if len(params) >= 2:
+        if params[1] not in nwrap.options:
+            nwrap.help
+        nwrap.apply(params[1:])
+        nwrap.utils.exit
+    nwrap.help
+
+if __name__ == "__main__":
+    nwrap()
+