R/helper_add_game_data.R

In nflfastR: Functions to Efficiently Access NFL Play by Play Data

################################################################################
# Author: Ben Baldwin
# Purpose: Function to add Lee Sharpe's game data
# Code Style Guide: styler::tidyverse_style()
################################################################################

# Thanks Lee!
add_game_data <- function(pbp, games = NULL, ...) {
  out <- pbp
  warn <- 0
  tryCatch(
    expr = {

      # we use dir to specify the directory of a locally stored games file
      # for unit tests
      if (is.null(games)){
        games <- nflreadr::load_schedules()
      } else {
        stopifnot(
           inherits(games, "nflverse_data"),
           isTRUE(attr(games, "nflverse_type") == "games and schedules")
         )
      }

      out <- out %>%
        dplyr::left_join(
          games %>%
            dplyr::select(
              "game_id", "old_game_id", "away_score", "home_score", "location", "result", "total",
              "spread_line", "total_line", "div_game", "roof", "surface", "temp", "wind",
              "home_coach", "away_coach", "stadium", "stadium_id", "gameday"
            ) %>%
            dplyr::rename(game_stadium = "stadium"),
          by = c("game_id")
        ) %>%
        dplyr::mutate(
          game_date = .data$gameday
        )

      user_message("added game variables", "done")
    },
    error = function(e) {
      message("The following error has occured:")
      message(e)
    },
    warning = function(w) {
      if (warn == 1) {
        message("Warning: The data hosting servers are down, so we can't add game data in the moment!")
      } else {
        message("The following warning has occured:")
        message(w)
      }
    },
    finally = {
    }
  )
  return(out)
}