components.groovy

import com.atlassian.jira.component.ComponentAccessor
import com.onresolve.scriptrunner.runner.rest.common.CustomEndpointDelegate
import groovy.json.JsonBuilder
import groovy.transform.BaseScript

import javax.ws.rs.core.MultivaluedMap
import javax.ws.rs.core.Response

@BaseScript CustomEndpointDelegate delegate

components(httpMethod: "GET") { MultivaluedMap queryParams ->

    def projectId = queryParams.getFirst("projectId") as Long
    def rt = [:]

    def query = queryParams.getFirst("query") as String
    def pcm = ComponentAccessor.projectComponentManager

    def candidates = pcm.findAllForProject(projectId).findAll {
        it.name.contains(query)
    }

    rt = [
            items : candidates.collect { component ->
                [
                        value: component.name,
                        html : component.name.replaceAll(/(?i)$query/) { "<b>${it}</b>" },
                        label: component.name,
                ]
            },
            total : candidates.size(),
            footer: "Choose component... "
    ]


    return Response.ok(new JsonBuilder(rt).toString()).build();
}