#!/usr/bin/env python
#
# Name: chassis.py, version: 1.0
#
# Description: Module contains the definitions of SONiC platform APIs 
# which provide the chassis specific details
#
# Copyright (c) 2020, Juniper Networks, Inc.
# All rights reserved.
#
# Notice and Disclaimer: This code is licensed to you under the GNU General 
# Public License as published by the Free Software Foundation, version 3 or 
# any later version. This code is not an official Juniper product. You can 
# obtain a copy of the License at <https://www.gnu.org/licenses/>
#
# OSS License:
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <https://www.gnu.org/licenses/>.
#
# Third-Party Code: This code may depend on other components under separate 
# copyright notice and license terms.  Your use of the source code for those 
# components is subject to the terms and conditions of the respective license 
# as noted in the Third-Party source code file.
#

try:
    import os
    import commands
    import sys
    import time
    import syslog
    from sonic_platform_base.chassis_base import ChassisBase
except ImportError as e:
    raise ImportError(str(e) + "- required module not found")

SYSLOG_IDENTIFIER = "Juniper-Chassis"

def log_info(msg):
    syslog.openlog(SYSLOG_IDENTIFIER)
    syslog.syslog(syslog.LOG_INFO, msg)
    syslog.closelog()	

class Chassis(ChassisBase):

    def __init__(self):
        ChassisBase.__init__(self)

    def get_parameter_value(self,parameter_name):
        try:
            with open("/var/run/eeprom", "r") as file:
                for item in file:
                    content = item.split('=')
                    if content[0] == parameter_name:
                        return content[1:]
                return "False"
        except IOError:
            print "Error: File not found"
            return "False"

    def get_product_name(self):
        product_name_list = self.get_parameter_value('Product Name')
        if product_name_list:
            product_name = ''.join(product_name_list)
            return product_name
        else:
            return False


    def get_part_number(self):
        part_number_list = self.get_parameter_value('Part Number')
        if part_number_list:
            part_number = ''.join(part_number_list)
            return part_number
        else:
            return False


    def get_serial(self):
        serial_number_list = self.get_parameter_value('Serial Number')
        if serial_number_list:
            serial_number = ''.join(serial_number_list)
            return serial_number
        else:
            return False


    def get_base_mac(self):
        mac_list = self.get_parameter_value('MAC')
        if mac_list:
            mac = ''.join(mac_list)
            return mac
        else:
            return False


    def get_mfg_date(self):
        mfgdate_list = self.get_parameter_value('Manufacture Date')
        if mfgdate_list:
            mfgdate = ''.join(mfgdate_list)
            return mfgdate
        else:
            return False

    def get_deviceversion_name(self):
        device_version_list = self.get_parameter_value('Device Version')
        if device_version_list:
            deviceversion_name = ''.join(device_version_list)
            return deviceversion_name
        else:
            return False

    def get_platform_name(self):
        platform_name_list = self.get_parameter_value('Platform Name')
        if platform_name_list:
            platform_name = ''.join(platform_name_list)
            return platform_name
        else:
            return False
    
    def get_MACnumber_name(self):
        MACnumber_name_list = self.get_parameter_value('Number of MAC Addresses')
        if MACnumber_name_list:
            MACnumber_name = ''.join(MACnumber_name_list)
            return MACnumber_name
        else:
            return False

    def get_vendor_name(self):
        vendor_name_list = self.get_parameter_value('Vendor Name')
        if vendor_name_list:
            vendor_name = ''.join(vendor_name_list)
            return vendor_name
        else:
            return False

    def get_mfg_name(self):
        mfg_name_list = self.get_parameter_value('Manufacture Name')
        if mfg_name_list:
            mfg_name = ''.join(mfg_name_list)
            return mfg_name
        else:
            return False

    def get_vendorext_name(self):
        vendorext_list = self.get_parameter_value('Vendor Extension')
        if vendorext_list:
            vendorext = ''.join(vendorext_list)
            return vendorext
        else:
            return False

    def get_vendorextIANA_name(self):
        vendorext_list = self.get_parameter_value('IANA')
        if vendorext_list:
            vendorext = ''.join(vendorext_list)
            return vendorext
        else:
            return False

    def get_vendorextASMREV_name(self):
        vendorext_list = self.get_parameter_value('Assembly Part Number Rev')
        if vendorext_list:
            vendorext = ''.join(vendorext_list)
            return vendorext
        else:
            return False

    def get_vendorextASMPartNum_name(self):
        vendorext_list = self.get_parameter_value('Assembly Part Number')
        if vendorext_list:
            vendorext = ''.join(vendorext_list)
            return vendorext
        else:
            return False

    def get_vendorextASMID_name(self):
        vendorext_list = self.get_parameter_value('Assembly ID')
        if vendorext_list:
            vendorext = ''.join(vendorext_list)
            return vendorext
        else:
            return False

    def get_vendorextASMMajNum_name(self):
        vendorext_list = self.get_parameter_value('Assembly Major Revision')
        if vendorext_list:
            vendorext = ''.join(vendorext_list)
            return vendorext
        else:
            return False

    def get_vendorextASMMinNum_name(self):
        vendorext_list = self.get_parameter_value('Assembly Minor Revision')
        if vendorext_list:
            vendorext = ''.join(vendorext_list)
            return vendorext
        else:
            return False

    def get_vendorextCLEI_name(self):
        vendorext_list = self.get_parameter_value('CLEI code')
        if vendorext_list:
            vendorext = ''.join(vendorext_list)
            return vendorext
        else:
            return False

    def get_onieversion_name(self):
        onieversion_name_list = self.get_parameter_value('ONIE Version')
        if onieversion_name_list:
            onieversion_name = ''.join(onieversion_name_list)
            return onieversion_name
        else:
            return False

    def get_crc_name(self):
        crc_list = self.get_parameter_value('CRC')
        if crc_list:
            crc_name = ''.join(crc_list)
            return crc_name
        else:
            return False

    def get_reboot_cause(self):
        """
        Retrieves the cause of the previous reboot
        """
        platform_name = self.get_platform_name()
        platform_name = platform_name.replace("\r","")
        platform_name = platform_name.replace("\n","")
	log_info("Juniper Platform name: {} and {}".format(self.get_platform_name(), platform_name))
        if str(platform_name) == "x86_64-juniper_networks_qfx5210-r0":	
	    log_info("Juniper Platform QFX5210 ")
            status, last_reboot_reason = commands.getstatusoutput("i2cget -f -y 0 0x65 0x24")
            if (status == 0):
                if last_reboot_reason == "0x80":
                    return (ChassisBase.REBOOT_CAUSE_NON_HARDWARE, None)
                elif last_reboot_reason == "0x40" or last_reboot_reason == "0x08":
                    return (ChassisBase.REBOOT_CAUSE_WATCHDOG, None)
                elif last_reboot_reason == "0x20":
                    return (ChassisBase.REBOOT_CAUSE_POWER_LOSS, None)
                elif last_reboot_reason == "0x10":
                    return (ChassisBase.REBOOT_CAUSE_HARDWARE_OTHER, "Swizzle Reset")
                else:
                    return (ChassisBase.REBOOT_CAUSE_HARDWARE_OTHER, "Unknown reason")
            else:
                time.sleep(3)
                status, last_reboot_reason = commands.getstatusoutput("i2cget -f -y 0 0x65 0x24")
                if last_reboot_reason == "0x80":
                    return (ChassisBase.REBOOT_CAUSE_NON_HARDWARE, None)
                elif last_reboot_reason == "0x40" or last_reboot_reason == "0x08":
                    return (ChassisBase.REBOOT_CAUSE_WATCHDOG, None)
                elif last_reboot_reason == "0x20":
                    return (ChassisBase.REBOOT_CAUSE_POWER_LOSS, None)
                elif last_reboot_reason == "0x10":
                    return (ChassisBase.REBOOT_CAUSE_HARDWARE_OTHER, "Swizzle Reset")
                else:
                    return (ChassisBase.REBOOT_CAUSE_HARDWARE_OTHER, "Unknown reason")

        elif str(platform_name) == "x86_64-juniper_networks_qfx5200-r0" : 		
	    log_info("Juniper Platform QFX5200 ")
	    status, major_version = commands.getstatusoutput("busybox devmem 0xFED50000 8")
	    status, minor_version = commands.getstatusoutput("busybox devmem 0xFED50001 8")
	    status, last_reboot_reason = commands.getstatusoutput("busybox devmem 0xFED50004 8")
	    if (status == 0):
	        if (major_version == "0x31") and (minor_version == "0x03") and (last_reboot_reason == "0x80"):
	            return (ChassisBase.REBOOT_CAUSE_NON_HARDWARE, None)
	        elif (major_version == "0x31") and (minor_version == "0x05") and (last_reboot_reason == "0x02"):
	            return (ChassisBase.REBOOT_CAUSE_NON_HARDWARE, None)
	        elif last_reboot_reason == "0x40" or last_reboot_reason == "0x08":
	            return (ChassisBase.REBOOT_CAUSE_WATCHDOG, None)
	        elif last_reboot_reason == "0x20":
	            return (ChassisBase.REBOOT_CAUSE_POWER_LOSS, None)
	        elif last_reboot_reason == "0x10":
	            return (ChassisBase.REBOOT_CAUSE_HARDWARE_OTHER, "Swizzle Reset")
	        else:
	            return (ChassisBase.REBOOT_CAUSE_HARDWARE_OTHER, "Unknown reason")
	    else:
	        time.sleep(3)
		status, major_version = commands.getstatusoutput("busybox devmem 0xFED50000 8")
		status, minor_version = commands.getstatusoutput("busybox devmem 0xFED50001 8")
	        status, last_reboot_reason = commands.getstatusoutput("busybox devmem 0xFED50004 8")
	        if (status == 0):
		    if (major_version == "0x31") and (minor_version == "0x03") and (last_reboot_reason == "0x80"):
	            	return (ChassisBase.REBOOT_CAUSE_NON_HARDWARE, None)
	            elif (major_version == "0x31") and (minor_version == "0x05") and (last_reboot_reason == "0x02"):
	            	return (ChassisBase.REBOOT_CAUSE_NON_HARDWARE, None)
              	    elif last_reboot_reason == "0x40" or last_reboot_reason == "0x08":
                    	return (ChassisBase.REBOOT_CAUSE_WATCHDOG, None)
                    elif last_reboot_reason == "0x20":
                    	return (ChassisBase.REBOOT_CAUSE_POWER_LOSS, None)
                    elif last_reboot_reason == "0x10":
                    	return (ChassisBase.REBOOT_CAUSE_HARDWARE_OTHER, "Swizzle Reset")
                    else:
			return (ChassisBase.REBOOT_CAUSE_HARDWARE_OTHER, "Unknown reason")
		else:
		    log_info("Error while reading Re-Fpga")
        else:
	    log_info("Unsupported platform")