get_dpclim_period_bounds <- function(start_date, end_date) {
    start_date <- as.Date(start_date)
    end_date <- as.Date(end_date)

    list(
        start = format(start_date, "%Y-%m-%dT00:00:00Z", tz = "GMT"),
        end = format(end_date + 1L, "%Y-%m-%dT00:00:00Z", tz = "GMT")
    )
}


getStationData <- function(start_date, end_date, station_id,headers ,dpclim = "public/DPClim/v1/",timesleep=5,base="https://public-api.meteofrance.fr") {
    url <- httr::modify_url(base,path = paste0(dpclim,"commande-station/infrahoraire-6m"))
    period_bounds <- get_dpclim_period_bounds(start_date, end_date)

    parameters <- list(
        "id-station" = station_id,
        "date-deb-periode" = period_bounds$start,
        "date-fin-periode" = period_bounds$end
    )

    # Create the URL with parameters to ask for the csv file
    url_query_file <- httr::modify_url(url, query = parameters)
    response <- request_api(url_query_file, headers=headers,code=202)
    if(!is.null(response) && response$status_code == 202){
        url_fichier <- httr::modify_url(base,path = paste0(dpclim,"commande/fichier"))
        parameters <- list("id-cmde" = httr::content(response)[[1]][[1]] )
        print(paste("Waiting for file",parameters[["id-cmde"]],"wait",timesleep,"secs"))
        Sys.sleep(timesleep)
        url_get_file <- httr::modify_url(url_fichier, query = parameters)
        response <- request_api(url_get_file, headers=headers,code=c(204,201,500))
        while(!is.null(response) && response$status_code %in% c(204,500)){
            print("file not ready yet, wait a minute more")
            Sys.sleep(60)
            response <- request_api(url_get_file, headers=headers,code=c(204,201,500))
            if(!is.null(response) && response$status_code == 500){
                print("problem with file generation, retry")
                response <- request_api(url_query_file, headers=headers,code=202)
                if (is.null(response)) {
                    break
                }
                parameters <- list("id-cmde" = httr::content(response)[[1]][[1]] )
                print(paste("Waiting for file",parameters[["id-cmde"]],"wait 25 sec"))
                Sys.sleep(25)
                url_get_file <- httr::modify_url(url_fichier, query = parameters)
                response <- request_api(url_get_file, headers=headers,code=c(204,201,500))
            }
        }
        if(!is.null(response) && response$status_code == 201){
            return(read.csv(text=httr::content(response,as="text")[[1]],sep=";",header=T,dec = ","))
        }
    }
    print("Failed to retrieve data from the API. Why? not sure..")
	return(NULL)
}


getStationDataDPObs <- function(start_date, end_date, station_id,headers ,dpclim = "public/DPClim/v1/",timesleep=5,base="https://public-api.meteofrance.fr") {
    url <- httr::modify_url(base,path = paste0(dpclim,"commande-station/infrahoraire-6m"))
    period_bounds <- get_dpclim_period_bounds(start_date, end_date)

    parameters <- list(
        "id-station" = station_id,
        "date-deb-periode" = period_bounds$start,
        "date-fin-periode" = period_bounds$end
    )

    # Create the URL with parameters to ask for the csv file
    url_query_file <- httr::modify_url(url, query = parameters)
    response <- request_api(url_query_file, headers=headers,code=202)
    if(!is.null(response) && response$status_code == 202){
        url_fichier <- httr::modify_url(base,path = paste0(dpclim,"commande/fichier"))
        parameters <- list("id-cmde" = httr::content(response)[[1]][[1]] )
        print(paste("Waiting for file",parameters[["id-cmde"]],"wait",timesleep,"secs"))
        Sys.sleep(timesleep)
        url_get_file <- httr::modify_url(url_fichier, query = parameters)
        response <- request_api(url_get_file, headers=headers,code=c(204,201,500))
        while(!is.null(response) && response$status_code %in% c(204,500)){
            print("file not ready yet, wait a minute more")
            Sys.sleep(60)
            response <- request_api(url_get_file, headers=headers,code=c(204,201,500))
            if(!is.null(response) && response$status_code == 500){
                print("problem with file generation, retry")
                response <- request_api(url_query_file, headers=headers,code=202)
                if (is.null(response)) {
                    break
                }
                parameters <- list("id-cmde" = httr::content(response)[[1]][[1]] )
                print(paste("Waiting for file",parameters[["id-cmde"]],"wait 25 sec"))
                Sys.sleep(25)
                url_get_file <- httr::modify_url(url_fichier, query = parameters)
                response <- request_api(url_get_file, headers=headers,code=c(204,201,500))
            }
        }
        if(!is.null(response) && response$status_code == 201){
            return(read.csv(text=httr::content(response,as="text")[[1]],sep=";",header=T,dec = ","))
        }
    }
    print("Failed to retrieve data from the API. Why? not sure..")
	return(NULL)
}

getStationDataTemp <- function(start_date, end_date, station_id,headers ,dpclim = "public/DPClim/v1/",timesleep=5,base="https://public-api.meteofrance.fr") {
    url <- httr::modify_url(base,path = paste0(dpclim,"commande-station/infrahoraire-6m"))
    period_bounds <- get_dpclim_period_bounds(start_date, end_date)

    parameters <- list(
        "id-station" = station_id,
        "date-deb-periode" = period_bounds$start,
        "date-fin-periode" = period_bounds$end
    )

    # Create the URL with parameters to ask for the csv file
    url_query_file <- httr::modify_url(url, query = parameters)
    response <- request_api(url_query_file, headers=headers,code=202)
    if(!is.null(response) && response$status_code == 202){
        url_fichier <- httr::modify_url(base,path = paste0(dpclim,"commande/fichier"))
        parameters <- list("id-cmde" = httr::content(response)[[1]][[1]] )
        print(paste("Waiting for file",parameters[["id-cmde"]],"wait",timesleep,"secs"))
        Sys.sleep(timesleep)
        url_get_file <- httr::modify_url(url_fichier, query = parameters)
        response <- request_api(url_get_file, headers=headers,code=c(204,201,500))
        while(!is.null(response) && response$status_code %in% c(204,500)){
            print("file not ready yet, wait a minute more")
            Sys.sleep(60)
            response <- request_api(url_get_file, headers=headers,code=c(204,201,500))
            if(!is.null(response) && response$status_code == 500){
                print("problem with file generation, retry")
                response <- request_api(url_query_file, headers=headers,code=202)
                if (is.null(response)) {
                    break
                }
                parameters <- list("id-cmde" = httr::content(response)[[1]][[1]] )
                print(paste("Waiting for file",parameters[["id-cmde"]],"wait 25 sec"))
                Sys.sleep(25)
                url_get_file <- httr::modify_url(url_fichier, query = parameters)
                response <- request_api(url_get_file, headers=headers,code=c(204,201,500))
            }
        }
        if(!is.null(response) && response$status_code == 201){
            return(read.csv(text=httr::content(response,as="text")[[1]],sep=";",header=T,dec = ","))
        }
    }
    print("Failed to retrieve data from the API. Why? not sure..")
	return(NULL)
}


getStationDataDPObs <- function(start_date, end_date, station_id,headers ,dpclim = "public/DPObs/v1/",timesleep=5,base="https://public-api.meteofrance.fr") {
    start_date <- as.Date(start_date)
    end_date <- as.Date(end_date)
    url <- httr::modify_url(base,path = paste0(dpclim,"station/infrahoraire-6m"))
    # Format dates in ISO8601 format
    formatted_start_date <- format(start_date, "%Y-%m-%dT12:00:00Z", tz = "GMT")
    formatted_end_date <- format(end_date, "%Y-%m-%dT00:00:00Z", tz = "GMT")

    parameters <- list("id_station" = station_id, "date" = formatted_start_date,'format'='csv')

    # Create the URL with parameters to ask for the csv file
    url_query_file <- httr::modify_url(url, query = parameters)
    response <- request_api(url_query_file, headers=headers,code=200)
    print(response)
    #if(response$status_code == 202){
    #    url_fichier <- modify_url(base,path = paste0(dpclim,"commande/fichier"))
    #    parameters <- list("id-cmde" = content(response)[[1]][[1]] )
    #    print(paste("Waiting for file",parameters[["id-cmde"]],"wait",timesleep,"secs"))
    #    Sys.sleep(timesleep)
    #    url_get_file <- modify_url(url_fichier, query = parameters)
    #    response <- request_api(url_get_file, headers=headers,code=c(204,201,500))
    #    while(response$status_code %in% c(204,500)){
    #        print("file not ready yet, wait a minute more")
    #        Sys.sleep(60)
    #        response <- request_api(url_get_file, headers=headers,code=c(204,201,500))
    #        if(response$status_code == 500){
    #            print("problem with file generation, retry")
    #            response <- request_api(url_query_file, headers=headers,code=202)
    #            parameters <- list("id-cmde" = content(response)[[1]][[1]] )
    #            print(paste("Waiting for file",parameters[["id-cmde"]],"wait 25 sec"))
    #            Sys.sleep(25)
    #            url_get_file <- modify_url(url_fichier, query = parameters)
    #            response <- request_api(url_get_file, headers=headers,code=c(204,201,500))
    #        }
    #    }
    #    if(response$status_code == 201){
    #        return(read.csv(text=content(response,as="text")[[1]],sep=";",header=T,dec = ","))
    #    }
    #}
    #print("Failed to retrieve data from the API. Why? not sure..")
	#return(NULL)
}