R/get_speech.R

In polAr: Argentina Political Analysis

#' Descarga discursos 
#'  (\emph{Download speeches})
#'  
#' @description
#' Función que descarga los discursos presidenciales ante la Asamblea Legislativa desde 1854 hasta 2020 
#'  (\emph{Function that downloads presidential speeches to de National Legislative Assembly from 1854 to 2020.})
#' 
#' @param year integer con identificador de discurso que se quiere seleccionar. Se puede explorar un listado de discursos con \code{\link{show_available_speech}}
#' (\emph{integer id for a selected speech. Explore full list of speeches  with \code{\link{show_available_speech}}}).
#' 
#' @param raw boleano que permite descargar discurso en formato \emph{tidy} cuando \code{raw = FALSE}  o crudo caso contrario  
#' (\emph{boolean that sets if you want to download raw or \emph{tidy} formated speech data}).
#' 
#'    
#' @return Devuelve un tibble con clases \code{"spec_tbl_df" "tbl_df" "tbl" "data.frame"} con el contenido de un discurso presidencial en tres variables: 
#' \code{discurso, presidente, year}. 
#'  (\emph{it retruns a tibble with three variables (speech - \code{discurso} - president -\code{presidente} and \code{year}). 
#' The object is of \code{class "tbl_df","tbl","data.frame"}}).
#'  
#' @seealso  \code{\link{plot_speech}}
#' 
#' @examples 
#'   
#'   get_speech(year = 1949)
#'         
#'    
#' @export

  get_speech <- function(year = NULL,  raw = FALSE){
  
  
  
  ## Check for internet coection
  attempt::stop_if_not(.x = curl::has_internet(),
                       msg = "Internet access was not detected. Please check your connection // 
No se detecto acceso a internet. Por favor chequear la conexion.")
  
  ## Check params 
  # raw check
  
  
  assertthat::assert_that(is.logical(raw),
                          msg = "'raw' must be logical. Options = c(TRUE, FALSE) //
'raw' debe ser un boleano. Opciones = c(TRUE, FALSE)" )
  
  
  # Check available speeches
  
  
  check_speech <-   polAr::show_available_speech() 
  
  
  assertthat::assert_that(year %in% check_speech$year, 
                          msg = "Please choose a valid speech year. Check them with 'show_available_speech()' //
Por favor seleccione una discurso valido. Consultelos con 'show_available_speech()'")
  
  # get RAW or Tidy (one token per row)
 
  
  if(raw == FALSE){ #Tidy version of speech 
    
    speech_year <- year

    get_ids <- check_speech %>% # We build this because we need not only year but also speaker names
      dplyr::filter(year == speech_year)
    
    
    url_tidy <- glue::glue("https://github.com/electorArg/PolAr_Data/blob/master/speech/{get_ids$year}-{get_ids$president}.csv?raw=true")
    
    ## FAIL SAFELEY
    
    check <- httr::GET(url_tidy)
    
    httr::stop_for_status(x = check, 
                          task = "Fail to download speech data. Source is not available // La fuente de datos de discursos no esta disponible")
    
    
                           
    df <- readr::read_csv(file = url_tidy, 
                          col_types = readr::cols()) 

    
  }else{  # RAW version of speech

    url_raw <- "https://raw.githubusercontent.com/electorArg/PolAr_Data/master/speech/raw_opening_speeches.csv"
    

    
    ## FAIL SAFELEY
    
    check <- httr::GET(url_raw)
    
    httr::stop_for_status(x = check, 
                          task = "Fail to download data. Source is not available // La fuente de datos no esta disponible")
    
    
    
    
        df <- readr::read_csv(url_raw,
                              col_types = readr::cols()) %>%
          dplyr::filter(year == anio)
  }
  
  df

  }