How to Compare fields of 2 jira projects using Groovy Script

[Vinay]

I am struggling with groovy script which can compare all fields of 2 project and create a confluence page with findings .
I am new to groovy script , so this i got from GPT.

Code :

import com.atlassian.jira.component.ComponentAccessor

import com.atlassian.jira.issue.fields.FieldManager

//import org.apache.poi.ss.usermodel.*

//import org.apache.poi.xssf.usermodel.XSSFWorkbook

import java.io.File

import java.io.FileOutputStream

import com.atlassian.sal.api.net.Request

import com.atlassian.applinks.api.ApplicationLink

import com.atlassian.applinks.api.ApplicationLinkService

// Configuration

def projectKey1 = "PROJECT1" // Replace with the first project's key

def projectKey2 = "PROJECT2" // Replace with the second project's key

def createConfluencePage = true // Set to true to create a Confluence page

def confluenceSpaceKey = "SPACE" // Confluence space key (if enabled)

def confluencePageTitle = "Jira Fields Comparison of  ${projectKey1} vs ${projectKey2}" // Confluence page title

// Get project objects

def projectManager = ComponentAccessor.getProjectManager()

def project1 = projectManager.getProjectByCurrentKey(projectKey1)

def project2 = projectManager.getProjectByCurrentKey(projectKey2)

if (!project1 || !project2) {

    throw new IllegalArgumentException("Invalid project keys provided!")

}

// Get field manager

def fieldManager = ComponentAccessor.getFieldManager()

// Retrieve all fields for comparison

def fieldsProject1 = fieldManager.getAvailableFields(project1)

def fieldsProject2 = fieldManager.getAvailableFields(project2)

// Compare fields

def fieldComparison = []

fieldsProject1.each { field1 ->

    def matchingField = fieldsProject2.find { field2 -> field2.getId() == field1.getId() }

    fieldComparison << [

        field1.getName(),

        field1.getFieldType(),

        matchingField ? "Yes" : "No",

        matchingField ? matchingField.getFieldType() : "N/A"

    ]

}

// Generate Confluence page

def generateConfluencePage = {

    // Get application link to Confluence

    def appLinkService = ComponentAccessor.getComponent(ApplicationLinkService)

    def confluenceLink = appLinkService.getPrimaryApplicationLink("confluence")

    if (!confluenceLink) {

        throw new IllegalStateException("No Confluence application link configured!")

    }

    // Prepare table data

    def tableContent = fieldComparison.collect { row ->

        "| ${row[0]} | ${row[1]} | ${row[2]} | ${row[3]} |"

    }.join("\n")

    def confluenceContent = """

        h1. Jira Fields Comparison: ${projectKey1} vs ${projectKey2}

        || Field Name (Project 1) || Field Type (Project 1) || Exists in Project 2? || Field Type (Project 2) ||

        ${tableContent}

    """

    // Send a request to create a Confluence page

    def authenticatedRequestFactory = confluenceLink.createAuthenticatedRequestFactory()

    authenticatedRequestFactory

        .createRequest(Request.MethodType.POST, "/rest/api/content")

        .addHeader("Content-Type", "application/json")

        .setRequestBody("""{

            "type": "page",

            "title": "${confluencePageTitle}",

            "space": {"key": "${confluenceSpaceKey}"},

            "body": {

                "storage": {

                    "value": "${confluenceContent}",

                    "representation": "wiki"

                }

            }

        }""")

        .execute({ response ->

            if (response.statusCode == 200 || response.statusCode == 201) {

                println "Confluence page created successfully!"

            } else {

                println "Failed to create Confluence page: ${response.statusCode} - ${response.responseBodyAsString}"

            }

        })

}

// Execute the chosen output

if (createConfluencePage) {

    generateConfluencePage()

} else {

    generateExcelFile()

}