# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
# Define useful common methods                                  -
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
import sys

if sys.version_info[0] != 3:
    print("This script requires Python 3")
    exit()
import os
import pprint
import time
from time import sleep
from random import seed
import re
import ipaddress

seed(int(round(time.time() * 1000)))
from random import randint
from LANforge import LFRequest

debug_printer = pprint.PrettyPrinter(indent=2)

NA = "NA"  # used to indicate parameter to skip
ADD_STA_FLAGS_DOWN_WPA2 = 68719477760
REPORT_TIMER_MS_FAST = 1500
REPORT_TIMER_MS_SLOW = 3000

#Used for Speed
def parse_size_bps(size_val):
    if isinstance(size_val, str):
        size_val.upper()
        # print(size_string)
        pattern = re.compile(r"^(\d+)([MGKmgk]?)bps$")
        td = pattern.match(size_val)
        if td is not None:
            size = int(td.group(1))
            unit = str(td.group(2)).lower()
            # print(1, size, unit)
            if unit == 'g':
                size *= 10000000
            elif unit == 'm':
                size *= 100000
            elif unit == 'k':
                size *= 1000
            # print(2, size, unit)
            return size
    else:
        return size_val

#Used for Size of file
def parse_size(size_val):
    if isinstance(size_val, str):
        size_val.upper()
        pattern = re.compile(r"^(\d+)([MGKmgk]?b?$)")
        td = pattern.match(size_val)
        if td is not None:
            size = int(td.group(1))
            unit = str(td.group(2)).lower()
            # print(1, size, unit)
            if unit == 'g':
                size *= 1073741824
            elif unit == 'm':
                size *= 1048576
            elif unit == 'k':
                size *= 1024
            # print(2, size, unit)
            return size
    else:
        return size_val


class PortEID:
    shelf = 1
    resource = 1
    port_id = 0
    port_name = ""

    def __init__(self, p_resource=1, p_port_id=0, p_port_name=""):
        resource = p_resource
        port_id = p_port_id
        port_name = p_port_name

    def __init__(self, json_response):
        if json_response == None:
            raise Exception("No json input")
        json_s = json_response
        if json_response['interface'] != None:
            json_s = json_response['interface']

        debug_printer(json_s)
        resource = json_s['resource']
        port_id = json_s['id']
        port_name = json_s['name']


# end class PortEID

def staNewDownStaRequest(sta_name, resource_id=1, radio="wiphy0", ssid="", passphrase="", debug_on=False):
    return sta_new_down_sta_request(sta_name, resource_id, radio, ssid, passphrase, debug_on)

def sta_new_down_sta_request(sta_name, resource_id=1, radio="wiphy0", ssid="", passphrase="", debug_on=False):
    """
    For use with add_sta. If you don't want to generate mac addresses via patterns (xx:xx:xx:xx:81:*)
    you can generate octets using random_hex.pop(0)[2:] and gen_mac(parent_radio_mac, octet)
    See http://localhost:8080/help/add_sta
    :param passphrase:
    :param ssid:
    :type sta_name: str
    """
    data = {
        "shelf": 1,
        "resource": resource_id,
        "radio": radio,
        "sta_name": sta_name,
        "flags": ADD_STA_FLAGS_DOWN_WPA2,  # note flags for add_sta do not match set_port
        "ssid": ssid,
        "key": passphrase,
        "mac": "xx:xx:xx:xx:*:xx",  # "NA", #gen_mac(parent_radio_mac, random_hex.pop(0))
        "mode": 0,
        "rate": "DEFAULT"
    }
    if (debug_on):
        debug_printer.pprint(data)
    return data


def portSetDhcpDownRequest(resource_id, port_name, debug_on=False):
    return port_set_dhcp_down_request(resource_id, port_name, debug_on)

def port_set_dhcp_down_request(resource_id, port_name, debug_on=False):
    """
    See http://localhost:8080/help/set_port
    :param resource_id:
    :param port_name:
    :return:
    """
    print("portSetDhcpDownRequest")
    data = {
        "shelf": 1,
        "resource": resource_id,
        "port": port_name,
        "current_flags": 2147483649,  # 0x1 = interface down + 2147483648 use DHCP values
        "interest": 75513858,  # includes use_current_flags + dhcp + dhcp_rls + ifdown
        "report_timer": REPORT_TIMER_MS_FAST
    }
    if (debug_on):
        debug_printer.pprint(data)
    return data


def portDhcpUpRequest(resource_id, port_name, debug_on=False):
    return port_dhcp_up_request(resource_id, port_name, debug_on)

def port_dhcp_up_request(resource_id, port_name, debug_on=False):
    """
    See http://localhost:8080/help/set_port
    :param resource_id:
    :param port_name:
    :return:
    """
    if (debug_on):
        print("portDhcpUpRequest")
    data = {
        "shelf": 1,
        "resource": resource_id,
        "port": port_name,
        "current_flags": 2147483648,  # vs 0x1 = interface down + use_dhcp
        "interest": 75513858,  # includes use_current_flags + dhcp + dhcp_rls + ifdown
        "report_timer": REPORT_TIMER_MS_FAST,
    }
    if (debug_on):
        debug_printer.pprint(data)
    return data


def portUpRequest(resource_id, port_name, debug_on=False):
    return port_up_request(resource_id, port_name, debug_on)

def port_up_request(resource_id, port_name, debug_on=False):
    """
    See http://localhost:8080/help/set_port
    :param resource_id:
    :param port_name:
    :return:
    """
    data = {
        "shelf": 1,
        "resource": resource_id,
        "port": port_name,
        "current_flags": 0,  # vs 0x1 = interface down
        "interest": 8388610,  # includes use_current_flags + dhcp + dhcp_rls + ifdown
        "report_timer": REPORT_TIMER_MS_FAST,
    }
    if (debug_on):
        print("Port up request")
        debug_printer.pprint(data)
    return data

def portDownRequest(resource_id, port_name, debug_on=False):
    return port_down_request(resource_id, port_name, debug_on)

def port_down_request(resource_id, port_name, debug_on=False):
    """
    Does not change the use_dhcp flag
    See http://localhost:8080/help/set_port
    :param resource_id:
    :param port_name:
    :return:
    """
    
    data = {
        "shelf": 1,
        "resource": resource_id,
        "port": port_name,
        "current_flags": 1,  # vs 0x0 = interface up
        "interest": 8388610,  # = current_flags + ifdown
        "report_timer": REPORT_TIMER_MS_FAST,
    }
    if (debug_on):
        print("Port down request")
        debug_printer.pprint(data)
    return data

def port_reset_request(resource_id, port_name, debug_on=False):
    """
    Does not change the use_dhcp flag
    See http://localhost:8080/help/reset_port
    :param resource_id:
    :param port_name:
    :return:
    """
    
    data = {
        "shelf": 1,
        "resource": resource_id,
        "port": port_name
    }
    if (debug_on):
        print("Port reset request")
        debug_printer.pprint(data)
    return data


def generateMac(parent_mac, random_octet, debug=False):
    return generate_mac(parent_mac=parent_mac, random_octet=random_octet, debug=debug)

def generate_mac(parent_mac, random_octet, debug=False):
    if debug:
        print("************ random_octet: %s **************" % (random_octet))
    my_oct = random_octet
    if (len(random_octet) == 4):
        my_oct = random_octet[2:]
    octets = parent_mac.split(":")
    octets[4] = my_oct
    return ":".join(octets)


def portNameSeries(prefix_="sta", start_id_=0, end_id_=1, padding_number_=10000, radio=None):
    """
    This produces a named series similar to "sta000, sta001, sta002...sta0(end_id)"
    the padding_number is added to the start and end numbers and the resulting sum
    has the first digit trimmed, so f(0, 1, 10000) => {"0000", "0001"}
    @deprecated -- please use port_name_series
    :param prefix_:
    :param start_id_:
    :param end_id_:
    :param padding_number_:
    :return:
    """
    return port_name_series(prefix=prefix_, start_id=start_id_, end_id=end_id_, padding_number=padding_number_, radio=radio)


def port_name_series(prefix="sta", start_id=0, end_id=1, padding_number=10000, radio=None):
    """
    This produces a named series similar to "sta000, sta001, sta002...sta0(end_id)"
    the padding_number is added to the start and end numbers and the resulting sum
    has the first digit trimmed, so f(0, 1, 10000) => {"0000", "0001"}
    @deprecated -- please use port_name_series
    :param prefix_: defaults to 'sta'
    :param start_id_: beginning id
    :param end_id_: ending_id
    :param padding_number_: used for width of resulting station number
    :return: list of stations
    """

    eid = None
    if radio is not None:
        eid = name_to_eid(radio)
    
    name_list = []
    for i in range((padding_number + start_id), (padding_number + end_id + 1)):
        sta_name = "%s%s" % (prefix, str(i)[1:])
        if eid is None:
            name_list.append(sta_name)
        else:
            name_list.append("%i.%i.%s" % (eid[0], eid[1], sta_name))
    return name_list


def gen_ip_series(ip_addr, netmask, num_ips=None):
    ip_list = [str(ip) for ip in ipaddress.IPv4Network(ip_addr + '/' + netmask, strict=False)]
    chosen_ips = []
    if num_ips is None:
        return ip_list
    else:
        for i in range(ip_list.index(ip_addr), num_ips + ip_list.index(ip_addr)):
            chosen_ips.append(ip_list[i])
        return chosen_ips

def generateRandomHex():
    return generate_random_hex()

# generate random hex if you need it for mac addresses
def generate_random_hex():
    # generate a few random numbers and convert them into hex:
    random_hex = []
    for rn in range(0, 254):
        random_dec = randint(0, 254)
        random_hex.append(hex(random_dec))
    return random_hex


# return reverse map of aliases to port records
#
# expect nested records, which is an artifact of some ORM
# that other customers expect:
# [
#   {
#       "1.1.eth0": {
#           "alias":"eth0"
#       }
#   },
#   { ... }
def portListToAliasMap(json_list, debug_=False):
    return port_list_to_alias_map(json_list=json_list, debug_=debug_)


def port_list_to_alias_map(json_list, debug_=False):
    reverse_map = {}
    if (json_list is None) or (len(json_list) < 1):
        if debug_:
            print("port_list_to_alias_map: no json_list provided")
            raise ValueError("port_list_to_alias_map: no json_list provided")
        return reverse_map

    json_interfaces = json_list
    if 'interfaces' in json_list:
        json_interfaces = json_list['interfaces']

    for record in json_interfaces:
        if len(record.keys()) < 1:
            continue
        record_keys = record.keys()
        k2 = ""
        # we expect one key in record keys, but we can't expect [0] to be populated
        json_entry = None
        for k in record_keys:
            k2 = k
            json_entry = record[k]
        # skip uninitialized port records
        if k2.find("Unknown") >= 0:
            continue
        port_json = record[k2]
        reverse_map[k2] = json_entry

    return reverse_map


def findPortEids(resource_id=1, base_url="http://localhost:8080", port_names=(), debug=False):
    return find_port_eids(resource_id=resource_id, base_url=base_url, port_names=port_names, debug=debug)


def find_port_eids(resource_id=1, base_url="http://localhost:8080", port_names=(), debug=False):
    port_eids = []
    if len(port_names) < 0:
        return []
    port_url = "/port/1"
    for port_name in port_names:
        uri = "%s/%s/%s" % (port_url, resource_id, port_name)
        lf_r = LFRequest.LFRequest(base_url, uri)
        try:
            response = lf_r.getAsJson(debug)
            if response is None:
                continue
            port_eids.append(PortEID(response))
        except:
            print("Not found: " + port_name)
    return port_eids


def waitUntilPortsAdminDown(resource_id=1, base_url="http://localhost:8080", port_list=()):
    return wait_until_ports_admin_down(resource_id=resource_id, base_url=base_url, port_list=port_list)


def wait_until_ports_admin_down(resource_id=1, base_url="http://localhost:8080", debug_=False, port_list=()):
    print("Waiting until ports appear admin-down...")
    up_stations = port_list.copy()
    sleep(1)
    port_url = "/port/1"
    while len(up_stations) > 0:
        up_stations = []
        for port_name in port_list:
            uri = "%s/%s/%s?fields=device,down" % (port_url, resource_id, port_name)
            lf_r = LFRequest.LFRequest(base_url, uri)
            json_response = lf_r.getAsJson(debug_=False)
            if json_response == None:
                if debug_:
                    print("port %s disappeared" % port_name)
                continue
            if "interface" in json_response:
                json_response = json_response['interface']
            if json_response['down'] == "false":
                up_stations.append(port_name)
        sleep(1)
    return None


def waitUntilPortsAdminUp(resource_id=1, base_url="http://localhost:8080", port_list=()):
    return wait_until_ports_admin_up(resource_id=resource_id, base_url=base_url, port_list=port_list)

def wait_until_ports_admin_up(resource_id=1, base_url="http://localhost:8080", port_list=(), debug_=False):
    print("Waiting until  ports appear admin-up...")
    down_stations = port_list.copy()
    sleep(1)
    port_url = "/port/1"
    # url = /%s/%s?fields=device,down" % (resource_id, port_name)
    while len(down_stations) > 0:
        down_stations = []
        for port_name in port_list:
            uri = "%s/%s/%s?fields=device,down" % (port_url, resource_id, port_name)
            lf_r = LFRequest.LFRequest(base_url, uri)
            json_response = lf_r.getAsJson(debug_=False)
            if json_response == None:
                if debug_:
                    print("port %s appeared" % port_name)
                continue
            if "interface" in json_response:
                json_response = json_response['interface']
            if json_response['down'] == "true":
                down_stations.append(port_name)
        sleep(1)
    return None

def waitUntilPortsDisappear(base_url="http://localhost:8080", port_list=[], debug=False):
    wait_until_ports_disappear(base_url, port_list, debug)

def wait_until_ports_disappear(base_url="http://localhost:8080", port_list=[], debug=False):
    print("Waiting until ports disappear...")
    url = "/port/1"
    if isinstance(port_list, list):
        found_stations = port_list.copy()
    else:
        found_stations = [port_list]

    while len(found_stations) > 0:
        found_stations = []
        for port_eid in port_list:
            eid = name_to_eid(port_eid)
            shelf = eid[0]
            resource_id = eid[1]
            port_name = eid[2]

            check_url = "%s/%s/%s" % (url, resource_id, port_name)
            if debug:
                print("checking:" + check_url)
            lf_r = LFRequest.LFRequest(base_url, check_url)
            json_response = lf_r.get_as_json(debug_=debug)
            if (json_response != None):
                found_stations.append(port_name)
        if len(found_stations) > 0:
            sleep(1)
    sleep(1) # safety
    return


def waitUntilPortsAppear(base_url="http://localhost:8080", port_list=(), debug=False):
    """
    Deprecated
    :param base_url:
    :param port_list:
    :param debug:
    :return:
    """
    return wait_until_ports_appear(base_url, port_list, debug=debug)

def name_to_eid(input):
    rv = [1, 1, ""]
    info = []
    if (input is None) or (input == ""):
        raise ValueError("name_to_eid wants eid like 1.1.sta0 but given[%s]" % input)
    
    info = input.split('.')
    if len(info) == 1:
        rv[2] = info[0]; # just port name
        return rv

    if (len(info) == 2) and info[0].isnumeric() and not info[1].isnumeric(): # resource.port-name
        rv[1] = int(info[0])
        rv[2] = info[1]
        return rv

    elif (len(info) == 2) and not info[0].isnumeric(): # port-name.qvlan
        rv[2] = info[0]+"."+info[1]
        return rv

    if (len(info) == 3) and info[0].isnumeric() and info[1].isnumeric(): # shelf.resource.port-name
        rv[0] = int(info[0])
        rv[1] = int(info[1])
        rv[2] = info[2]
        return rv

    elif (len(info) == 3) and info[0].isnumeric() and not info[1].isnumeric(): # resource.port-name.qvlan
        rv[1] = int(info[0])
        rv[2] = info[1]+"."+info[2]
        return rv

    if len(info) == 4: # shelf.resource.port-name.qvlan
        rv[0] = int(info[0])
        rv[1] = int(info[1])
        rv[2] = info[2]+"."+info[3]

    return rv;

def wait_until_ports_appear(base_url="http://localhost:8080", port_list=(), debug=False):
    """
    Use this method to pause until the LANforge system has caught up and implemented the
    ports you have requested to create. This determines the presence of interfaces, it
    does not inspect their state. It is appropriate to use when creating stations in
    the admin-down state. Remember physical port changes, mac-vlans, and 1Qvlans might
    not appear if they are created admin-down.
    :param base_url:
    :param port_list:
    :param debug:
    :return:
    """
    if debug:
        print("Waiting until ports appear...")
    found_stations = []
    port_url = "/port/1"
    ncshow_url = "/cli-json/nc_show_ports"
    if base_url.endswith('/'):
        port_url = port_url[1:]
        ncshow_url = ncshow_url[1:]

    while len(found_stations) < len(port_list):
        found_stations = []
        for port_eid in port_list:
            eid = name_to_eid(port_eid)
            shelf = eid[0]
            resource_id = eid[1]
            port_name = eid[2]
            # print("waiting for sta sta "+port_eid)
            uri = "%s/%s/%s" % (port_url, resource_id, port_name)
            lf_r = LFRequest.LFRequest(base_url, uri)
            json_response = lf_r.getAsJson(debug_=False)
            if (json_response != None):
                found_stations.append(port_name)
            else:
                lf_r = LFRequest.LFRequest(base_url, ncshow_url)
                lf_r.addPostData({"shelf": shelf, "resource": resource_id, "port": port_name, "probe_flags": 5})
                lf_r.jsonPost()
        if (len(found_stations) < len(port_list)):
            sleep(2)

    if debug:
        print("These stations appeared: " + ", ".join(found_stations))
    return

def wait_until_endps(base_url="http://localhost:8080", endp_list=(), debug=False):
    """

    :param base_url:
    :param port_list:
    :param debug:
    :return:
    """
    print("Waiting until endpoints appear...")
    found_endps = []
    port_url = "/port/1"
    ncshow_url = "/cli-form/show_endp"
    if base_url.endswith('/'):
        port_url = port_url[1:]
        ncshow_url = ncshow_url[1:]

    while len(found_stations) < len(endp_list):
        found_stations = []
        for port_eid in endp_list:

            eid = name_to_eid(port_eid)
            shelf = eid[0]
            resource_id = eid[1]
            port_name = eid[2]
            
            uri = "%s/%s/%s" % (port_url, resource_id, port_name)
            lf_r = LFRequest.LFRequest(base_url, uri)
            json_response = lf_r.getAsJson(debug_=False)
            if (json_response != None):
                found_stations.append(port_name)
            else:
                lf_r = LFRequest.LFRequest(base_url, ncshow_url)
                lf_r.addPostData({"shelf": shelf, "resource": resource_id, "port": port_name, "flags": 1})
                lf_r.formPost()
        if (len(found_stations) < len(endp_list)):
            sleep(2)

    if debug:
        print("These stations appeared: " + ", ".join(found_stations))
    return


def removePort(resource, port_name, baseurl="http://localhost:8080/", debug=False):
    remove_port(resource=resource, port_name=port_name, baseurl=baseurl, debug=debug)


def remove_port(resource, port_name, baseurl="http://localhost:8080/", debug=False):
    if debug:
        print("Removing port %d.%s" % (resource, port_name))
    url = "/cli-json/rm_vlan"
    lf_r = LFRequest.LFRequest(baseurl, url)
    lf_r.addPostData({
        "shelf": 1,
        "resource": resource,
        "port": port_name
    })
    lf_r.jsonPost(debug)


def removeCX(baseurl, cx_names, debug=False):
    remove_cx(baseurl=baseurl, cx_names=cx_names, debug=debug)


def remove_cx(baseurl, cx_names, debug=False):
    if debug:
        print("Removing cx %s" % ", ".join(cx_names))
    url = "/cli-json/rm_cx"
    for name in cx_names:
        data = {
            "test_mgr": "all",
            "cx_name": name
        }
        lf_r = LFRequest.LFRequest(baseurl, url)
        lf_r.addPostData(data)
        lf_r.jsonPost(debug)


def removeEndps(baseurl, endp_names, debug=False):
    remove_endps(baseurl=baseurl, endp_names=endp_names, debug=debug)


def remove_endps(baseurl, endp_names, debug=False):
    if debug:
        print("Removing endp %s" % ", ".join(endp_names))
    url = "/cli-json/rm_endp"
    lf_r = LFRequest.LFRequest(baseurl, url)
    for name in endp_names:
        data = {
            "endp_name": name
        }
        lf_r.addPostData(data)
        lf_r.jsonPost(debug)


def execWrap(cmd):
    exec_wrap(cmd=cmd)


def exec_wrap(cmd):
    if os.system(cmd) != 0:
        print("\nError with '" + cmd + "', bye\n")
        exit(1)

###