#' Generate file names to download the chelsa present dataset
#'
#' This function creates a vector of paths needed to download the CHELSA present
#' dataset. Possible names are "paleoclim_1.0_10m", "paleoclim_1.0_5m",
#' "paleoclim_1.0_2.5m"
#' @param dataset the name of the dataset of interest (currently unused)
#' @param bio_var the variable of interest
#' @returns a vector of times, one per band
#'
#' @keywords internal
filenames_paleoclim <- function(dataset, bio_var){
resolution <- strsplit(dataset,"_")[[1]][3]
# if resolution is 2.5, we need to change it to 2_5
resolution <- gsub(".", "_", resolution, fixed = TRUE)
time_period_codes <- c("LH", "MH", "EH", "YDS", "BA", "HS1", "LIG")
# compose download paths
pastclim_urls <- paste0("http://sdmtoolbox.org/paleoclim.org/data/",
time_period_codes,"/",time_period_codes,"_v1_",resolution,".zip")
# add present
pastclim_urls <- c(paste0("http://sdmtoolbox.org/paleoclim.org/data/chelsa_cur/CHELSA_cur_V1_2B_r",
resolution, ".zip"), pastclim_urls)
# add LGM
lgm_url <- paste0("http://sdmtoolbox.org/paleoclim.org/data/chelsa_LGM/chelsa_LGM_v1_2B_r",
resolution, ".zip")
# add LGM at the correct position
pastclim_urls <- append(pastclim_urls, lgm_url, after = 7)
return(pastclim_urls)
}
# http://sdmtoolbox.org/paleoclim.org/data/LH/LH_v1_10m.zip
# http://sdmtoolbox.org/paleoclim.org/data/MH/MH_v1_10m.zip
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