using System;
using ln.skyscanner.entities;
using ln.types;
using ln.snmp;
using System.Collections.Generic;
using ln.snmp.types;
using ln.logging;
using Microsoft.Win32.SafeHandles;
using Renci.SshNet.Messages.Connection;
using ln.skyscanner.services;

namespace ln.skyscanner.checks
{
    public class APC : SkyCheck
    {
        public APC()
            :base("apc")
        {
        }


        public override void Check(CheckService checkService, ref SkyCheckState checkState,Node node)
        {
            foreach (URI snmpUri in node.FindURIs("snmp"))
            {
                using (SnmpInterface snmp = SnmpInterface.FromURI(snmpUri,checkService.SNMPEngine))
                {
                    try
                    {
                        Sequence[][] inputs = snmp.snmpWalk(new string[]{
                            "1.3.6.1.2.1.33.1.3.3.1.2",
                            "1.3.6.1.2.1.33.1.3.3.1.3",
                            "1.3.6.1.2.1.33.1.3.3.1.4"
                            });
                        Sequence[][] outputs = snmp.snmpWalk(new string[]{
                            "1.3.6.1.2.1.33.1.4.4.1.2",
                            "1.3.6.1.2.1.33.1.4.4.1.3",
                            "1.3.6.1.2.1.33.1.4.4.1.5"
                            });
                        Sequence[][] batteries = snmp.snmpWalk(new string[] {
                            "1.3.6.1.2.1.33.1.2.1",
                            "1.3.6.1.2.1.33.1.2.3",
                            "1.3.6.1.2.1.33.1.2.4",
                            "1.3.6.1.2.1.33.1.2.5",
                            "1.3.6.1.2.1.33.1.2.7"
                            });

                        int n = 0;
                        foreach (Sequence[] input in inputs)
                        {
                            double frequency = (double)((Integer)(input[0].Items[1])).LongValue / 10.0;
                            double voltage = (double)((Integer)(input[1].Items[1])).LongValue;
                            double current = (double)((Integer)(input[2].Items[1])).LongValue;

                            node.WritePerformanceValue(checkService.PerformanceValueService, Name, String.Format("ups_input_{0}_frequency", n), frequency, wLower: 48, wUpper: 52, cLower: 45, cUpper: 55);
                            node.WritePerformanceValue(checkService.PerformanceValueService, Name, String.Format("ups_input_{0}_voltage", n), voltage, wLower: 218.5, wUpper: 238, cLower: 212, cUpper: 245);
                            node.WritePerformanceValue(checkService.PerformanceValueService, Name, String.Format("ups_input_{0}_current", n), current);
                            n++;
                        }

                        n = 0;
                        foreach (Sequence[] output in outputs)
                        {
                            node.WritePerformanceValue(checkService.PerformanceValueService, Name, String.Format("ups_output_{0}_voltage", n), (double)((Integer)(output[0].Items[1])).LongValue, wLower: 218.5, wUpper: 238, cLower: 212, cUpper: 245);
                            node.WritePerformanceValue(checkService.PerformanceValueService, Name, String.Format("ups_output_{0}_current", n), (double)((Integer)(output[1].Items[1])).LongValue / 10.0);
                            node.WritePerformanceValue(checkService.PerformanceValueService, Name, String.Format("ups_output_{0}_load", n), (double)((Integer)(output[2].Items[1])).LongValue, wUpper: 50, cUpper: 75);
                            n++;
                        }

                        n = 0;
                        foreach (Sequence[] battery in batteries)
                        {
                            node.WritePerformanceValue(checkService.PerformanceValueService, Name, String.Format("ups_battery_{0}_status", n), (double)((Integer)(battery[0].Items[1])).LongValue);
                            node.WritePerformanceValue(checkService.PerformanceValueService, Name, String.Format("ups_battery_{0}_minutes_remain", n), (double)((Integer)(battery[1].Items[1])).LongValue, wLower: 20, cLower: 10 );
                            node.WritePerformanceValue(checkService.PerformanceValueService, Name, String.Format("ups_battery_{0}_capacity", n), (double)((Integer)(battery[2].Items[1])).LongValue, wLower: 75, cLower: 50);
                            node.WritePerformanceValue(checkService.PerformanceValueService, Name, String.Format("ups_battery_{0}_voltage", n), (double)((Integer)(battery[3].Items[1])).LongValue / 10.0);
                            node.WritePerformanceValue(checkService.PerformanceValueService, Name, String.Format("ups_battery_{0}_temperature", n), (double)((Integer)(battery[4].Items[1])).LongValue, wUpper: 40, cUpper: 60);
                            n++;
                        }

                        checkState.CheckState = CheckState.OK;
                        return;
                    } catch (SnmpError)
                    {
                    }
                }
            }
            checkState.CheckState = CheckState.FAIL;
        }

        public override bool IsValid(Node node)
        {
            return (node.Vendor != null) && node.Vendor.Equals("APC");
        }
    }
}