<cfsetting showdebugoutput="false">
<cfsetting enablecfoutputonly="true">

<cfcontent type="application/json; charset=utf-8" reset="true">
<cfheader name="Cache-Control" value="no-store">

<cfscript>
function apiAbort(obj){
  writeOutput(serializeJSON(obj));
  abort;
}

function readJsonBody(){
  raw = toString(getHttpRequestData().content);
  if (isNull(raw) || len(trim(raw)) EQ 0){
    apiAbort({OK=false,ERROR="missing_body"});
  }
  try {
    parsed = deserializeJSON(raw);
  } catch(any e){
    apiAbort({OK=false,ERROR="bad_json",MESSAGE="Invalid JSON body"});
  }
  if (!isStruct(parsed)){
    apiAbort({OK=false,ERROR="bad_json",MESSAGE="JSON must be an object"});
  }
  return parsed;
}

/* ---------- AUTH CONTEXT ---------- */
if (!structKeyExists(request,"BusinessID") || !isNumeric(request.BusinessID) || request.BusinessID LTE 0){
  apiAbort({OK=false,ERROR="no_business_selected"});
}

/* ---------- INPUT ---------- */
data = readJsonBody();

if (!structKeyExists(data,"ServicePointID") || !isNumeric(data.ServicePointID) || int(data.ServicePointID) LTE 0){
  apiAbort({OK=false,ERROR="missing_ServicePointID"});
}

ServicePointID = int(data.ServicePointID);
</cfscript>

<!--- Confirm the service point exists for this business and has a beacon assigned --->
<cfquery name="qFind" datasource="payfrit">
  SELECT ID, BeaconID
  FROM ServicePoints
  WHERE ID = <cfqueryparam cfsqltype="cf_sql_integer" value="#ServicePointID#">
    AND BusinessID = <cfqueryparam cfsqltype="cf_sql_integer" value="#request.BusinessID#">
    AND BeaconID IS NOT NULL
  LIMIT 1
</cfquery>

<cfif qFind.recordCount EQ 0>
  <cfoutput>#serializeJSON({
    "OK"=false,
    "ERROR"="not_found",
    "ServicePointID"=ServicePointID,
    "BusinessID"=(request.BusinessID & "")
  })#</cfoutput>
  <cfabort>
</cfif>

<cfset removedBeaconID = qFind.BeaconID>

<!--- Unassign beacon from service point --->
<cfquery datasource="payfrit">
  UPDATE ServicePoints
  SET BeaconID = NULL,
      AssignedByUserID = NULL
  WHERE ID = <cfqueryparam cfsqltype="cf_sql_integer" value="#ServicePointID#">
    AND BusinessID = <cfqueryparam cfsqltype="cf_sql_integer" value="#request.BusinessID#">
</cfquery>

<cfoutput>#serializeJSON({
  "OK"=true,
  "ERROR"="",
  "ACTION"="unassigned",
  "ServicePointID"=ServicePointID,
  "BeaconID"=removedBeaconID,
  "BusinessID"=(request.BusinessID & "")
})#</cfoutput>
