<%@ Language=VBScript %>
<%
Response.ContentType = "application/json"
On Error Resume Next
%>
<!--#include file="./includes/sql.asp"-->
<%
' Check database connection
If Not IsObject(objConn) Then
    Response.Write "{""success"": false, ""error"": ""Database connection failed""}"
    Response.End
End If

' Configuration
Const VENDOR_API_URL = "http://10.48.130.113/vendor-api-proxy.php"
Const BATCH_SIZE = 10

' Variables
Dim strSQL, rsWarranties, total, updated, errors
updated = 0
errors = 0

' Find PCs without warranty - PHASE 2: Use machines table
strSQL = "SELECT machineid, hostname, serialnumber FROM machines " & _
         "WHERE pctypeid IS NOT NULL " & _
         "AND serialnumber IS NOT NULL AND serialnumber <> 'N/A' AND serialnumber <> '' " & _
         "AND LENGTH(serialnumber) >= 5 AND isactive = 1 " & _
         "AND machineid NOT IN (SELECT machineid FROM warranties WHERE enddate IS NOT NULL)"

Set rsWarranties = Server.CreateObject("ADODB.Recordset")
rsWarranties.CursorLocation = 3
rsWarranties.Open strSQL, objConn

' Check for errors
If Err.Number <> 0 Then
    Response.Write "{""success"": false, ""error"": ""Query failed: " & Replace(Err.Description, """", "'") & """}"
    Response.End
End If

' Check if empty
If rsWarranties.EOF Then
    Response.Write "{""success"": true, ""message"": ""No devices require warranty checks"", ""total"": 0, ""updated"": 0, ""errors"": 0}"
    rsWarranties.Close
    objConn.Close
    Response.End
End If

' Count and build arrays
total = 0
rsWarranties.MoveFirst
Do While Not rsWarranties.EOF
    total = total + 1
    rsWarranties.MoveNext
Loop

Dim serviceTagList(), deviceInfo()
ReDim serviceTagList(total - 1)
ReDim deviceInfo(total - 1)

rsWarranties.MoveFirst
Dim i
i = 0
Do While Not rsWarranties.EOF
    serviceTagList(i) = Trim(rsWarranties("serialnumber"))
    Set deviceInfo(i) = CreateObject("Scripting.Dictionary")
    deviceInfo(i)("machineid") = rsWarranties("machineid")
    deviceInfo(i)("hostname") = rsWarranties("hostname")
    i = i + 1
    rsWarranties.MoveNext
Loop

rsWarranties.Close
Set rsWarranties = Nothing

' Process in batches
Dim batchStart, batchEnd, j, batchTags, apiUrl, xmlhttp, responseText
Dim warrantyEndDate, serviceLevel, warrantyStatus

For i = 0 To total - 1 Step BATCH_SIZE
    batchStart = i
    batchEnd = i + BATCH_SIZE - 1
    If batchEnd >= total Then batchEnd = total - 1

    ' Build service tag list
    batchTags = ""
    For j = batchStart To batchEnd
        If batchTags <> "" Then batchTags = batchTags & ","
        batchTags = batchTags & serviceTagList(j)
    Next

    ' Call API
    apiUrl = VENDOR_API_URL & "?vendor=dell&action=warranty-batch&servicetags=" & Server.URLEncode(batchTags)

    Set xmlhttp = Server.CreateObject("MSXML2.ServerXMLHTTP.6.0")
    xmlhttp.setTimeouts 30000, 30000, 30000, 30000
    xmlhttp.Open "GET", apiUrl, False
    xmlhttp.setRequestHeader "Accept", "application/json"
    xmlhttp.Send

    If Err.Number = 0 Then
        responseText = xmlhttp.responseText

        If InStr(responseText, """success"":true") > 0 Then
            For j = batchStart To batchEnd
                warrantyEndDate = ExtractWarrantyData(responseText, serviceTagList(j), "warrantyEndDate")
                serviceLevel = ExtractWarrantyData(responseText, serviceTagList(j), "serviceLevel")
                warrantyStatus = ExtractWarrantyData(responseText, serviceTagList(j), "warrantyStatus")

                If warrantyEndDate <> "" Then
                    ' PHASE 2: Insert into warranties table
                    strSQL = "INSERT INTO warranties (machineid, enddate, servicelevel, lastcheckeddate) " & _
                             "VALUES (" & deviceInfo(j)("machineid") & ", '" & Replace(warrantyEndDate, "'", "''") & "', " & _
                             "'" & Replace(Left(serviceLevel, 100), "'", "''") & "', NOW()) " & _
                             "ON DUPLICATE KEY UPDATE enddate = VALUES(enddate), servicelevel = VALUES(servicelevel), lastcheckeddate = NOW()"

                    objConn.Execute strSQL
                    If Err.Number = 0 Then
                        updated = updated + 1
                    Else
                        errors = errors + 1
                        Err.Clear
                    End If
                Else
                    errors = errors + 1
                End If
            Next
        Else
            errors = errors + (batchEnd - batchStart + 1)
        End If
    Else
        errors = errors + (batchEnd - batchStart + 1)
        Err.Clear
    End If

    Set xmlhttp = Nothing
Next

' Return response
Response.Write "{""success"": true, ""total"": " & total & ", ""updated"": " & updated & ", ""errors"": " & errors & "}"
objConn.Close

' Extract warranty data from JSON
Function ExtractWarrantyData(jsonText, serviceTag, fieldName)
    Dim pattern, startPos, endPos, value, fieldPattern
    pattern = """serviceTag"":""" & serviceTag & """"
    startPos = InStr(jsonText, pattern)

    If startPos > 0 Then
        fieldPattern = """" & fieldName & """:"""
        startPos = InStr(startPos, jsonText, fieldPattern)

        If startPos > 0 Then
            startPos = startPos + Len(fieldPattern)
            endPos = InStr(startPos, jsonText, """")
            If endPos > startPos Then
                ExtractWarrantyData = Mid(jsonText, startPos, endPos - startPos)
                Exit Function
            End If
        End If
    End If

    ExtractWarrantyData = ""
End Function
%>