package gw.riskassessment

uses com.guidewire.pl.web.controller.WebRequestHandler
uses com.guidewire.pl.web.controller.WebRequestInfo
uses gw.api.database.Query
uses gw.util.StreamUtil

uses javax.servlet.http.HttpServletRequest
uses javax.servlet.http.HttpServletResponse
uses java.lang.IllegalStateException

abstract class LocationDetailsRequestHandler implements WebRequestHandler {

  abstract property get LocationDetailURI() : String

  abstract property get LocationIDParam() : String

  abstract function createJSONData(policyLocation : OutboundLocationRiskAssessmentTempStore) : String

  override function shouldHandleRequest(request : WebRequestInfo): boolean {
    var httpRequest = request.getRequestWrapper().getRequest()
    var uri = httpRequest.getRequestURI()
    return uri.contains(LocationDetailURI)
  }

  override function handleRequest(request : WebRequestInfo) {
    //No cache implementation
    WebRequestInfo.Util.setNoCacheHeader(request.getResponse())

    var response = request.getResponse()
    var httpServletRequest = request.getRequestWrapper().getRequest()

    response.setHeader("Access-Control-Allow-Origin", httpServletRequest.getHeader("Origin"))
    response.setHeader("Access-Control-Allow-Credentials", "true")

    if (httpServletRequest.getMethod() == "OPTIONS") {
      response.setHeader("Access-Control-Allow-Methods", "GET, POST, PUT, DELETE")
      response.setHeader("Access-Control-Allow-Headers", "X-Requested-With, Origin,Content-Type,Accept")
    } else {
      var location = retrieveLocation(httpServletRequest)
      setResponseWithJSONData(location, response)
    }
  }

  private function retrieveLocation(request : HttpServletRequest) : OutboundLocationRiskAssessmentTempStore {
    var locationID = request.getParameter(LocationIDParam)
    var requestData = Query.make(OutboundLocationRiskAssessmentTempStore).compare(OutboundLocationRiskAssessmentTempStore#PublicID, Equals, locationID).select().single()
    if (requestData == null) {
      throw new IllegalStateException("Location not found with public id : " + locationID)
    }
    return requestData
  }

  private function setResponseWithJSONData(requestData : OutboundLocationRiskAssessmentTempStore, servletResponse : HttpServletResponse) {
    servletResponse.setContentType("application/json")
    servletResponse.getOutputStream().write(StreamUtil.toBytes(createJSONData(requestData)));
  }
}