#' Get Results
#'
#' Get data from all the processed images.
#'
#' The function calls \code{\link{listFinishedTasks}}, goes through the finishedTasks data frame and downloads all the files in resultsUrl
#' Results can be stored in memory or written to the hard disk. By default, the function writes to the disk.
#' If the user wants the results to be written to disk, a data frame with paths to local file paths is returned. If the user wants to store the
#' results in memory, data frame with a column carrying the results is returned.
#'
#' @param output Optional; folder to which you want to save the data from the processed images; Default is same folder as the script
#' @param save_to_file Required; Default is TRUE; If true, it saves to file. Otherwise returns a data frame with results + other attributes from Abbyy
#' @return data frame returned by \code{\link{listFinishedTasks}} plus either a column that contains paths to local files (when writing to disk),
#' or actual results returned.
#'
#' @export
#' @references \url{http://ocrsdk.com/documentation/apireference/getTaskStatus/}
#'
#' @usage getResults(output = "", save_to_file = TRUE)
#'
#' @examples \dontrun{
#' getResults(save_to_file = FALSE)
#' }
getResults <- function(output = "./", save_to_file = TRUE) {
finished_list <- listFinishedTasks()
if (nrow(finished_list) == 0) {
cat("No Finished Tasks")
} else {
# Set progress bar
pb <- progress_bar$new(total = nrow(finished_list))
if (!save_to_file) {
# Add additional col. to finished_list
finished_list$results <- NA
for (i in seq_along(1:nrow(finished_list))) {
url <- as.character(finished_list$resultUrl[i])
temp <- curl_fetch_memory(url)
finished_list$results[i] <- rawToChar(temp$content)
pb$tick()
}
return(invisible(finished_list))
}
finished_list$local_file_path <- NA
for (i in seq_along(1:nrow(finished_list))) {
curl_download(as.character(finished_list$resultUrl[i]),
destfile = paste0(output, finished_list$id[i]))
finished_list$local_file_path[i] <- paste0(output, finished_list$id[i])
pb$tick()
}
}
finished_list
}
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