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

<cffunction name="apiAbort" access="public" returntype="void" output="true">
  <cfargument name="payload" type="struct" required="true">
  <cfcontent type="application/json; charset=utf-8">
  <cfoutput>#serializeJSON(arguments.payload)#</cfoutput>
  <cfabort>
</cffunction>

<cffunction name="readJsonBody" access="public" returntype="struct" output="false">
  <cfset var raw = getHttpRequestData().content>
  <cfif isNull(raw) OR len(trim(raw)) EQ 0>
    <cfreturn {}>
  </cfif>
  <cftry>
    <cfset var data = deserializeJSON(raw)>
    <cfif isStruct(data)>
      <cfreturn data>
    <cfelse>
      <cfreturn {}>
    </cfif>
    <cfcatch>
      <cfreturn {}>
    </cfcatch>
  </cftry>
</cffunction>

<cfset data = readJsonBody()>
<cfset TaskID = val( structKeyExists(data,"TaskID") ? data.TaskID : 0 )>

<cfif TaskID LTE 0>
  <cfset apiAbort({ "OK": false, "ERROR": "missing_params", "MESSAGE": "TaskID is required." })>
</cfif>

<cftry>
  <!--- Verify task exists and is a chat task --->
  <cfset qTask = queryExecute("
    SELECT ID, ClaimedByUserID, CompletedOn, OrderID, TaskTypeID
    FROM Tasks
    WHERE ID = ?
  ", [ { value = TaskID, cfsqltype = "cf_sql_integer" } ], { datasource = "payfrit" })>

  <cfif qTask.recordCount EQ 0>
    <cfset apiAbort({ "OK": false, "ERROR": "not_found", "MESSAGE": "Task not found." })>
  </cfif>

  <!--- Only allow chat tasks (TaskTypeID = 2) --->
  <cfif qTask.TaskTypeID NEQ 2>
    <cfset apiAbort({ "OK": false, "ERROR": "not_chat", "MESSAGE": "This endpoint is only for chat tasks." })>
  </cfif>

  <!--- Check if already completed --->
  <cfif len(trim(qTask.CompletedOn)) GT 0>
    <cfset apiAbort({ "OK": false, "ERROR": "already_completed", "MESSAGE": "Chat has already been closed." })>
  </cfif>

  <!--- Mark task as completed --->
  <cfset queryExecute("
    UPDATE Tasks
    SET CompletedOn = NOW()
    WHERE ID = ?
  ", [ { value = TaskID, cfsqltype = "cf_sql_integer" } ], { datasource = "payfrit" })>

  <cfset apiAbort({
    "OK": true,
    "ERROR": "",
    "MESSAGE": "Chat closed successfully.",
    "TaskID": TaskID
  })>

  <cfcatch>
    <cfset apiAbort({
      "OK": false,
      "ERROR": "server_error",
      "MESSAGE": "Error closing chat",
      "DETAIL": cfcatch.message
    })>
  </cfcatch>
</cftry>
