CreateInputsModel.R

CreateInputsModel <- function(FUN_MOD,
                              DatesR,
                              Precip, PrecipScale = TRUE,
                              PotEvap = NULL,
                              TempMean = NULL, TempMin = NULL, TempMax = NULL,
                              ZInputs = NULL, HypsoData = NULL, NLayers = 5,
                              Qupstream = NULL, LengthHydro = NULL, BasinAreas = NULL,
                              verbose = TRUE) {


  ObjectClass <- NULL

  FUN_MOD <- match.fun(FUN_MOD)

  ##check_FUN_MOD
  BOOL <- FALSE
  if (identical(FUN_MOD, RunModel_GR4H) | identical(FUN_MOD, RunModel_GR5H)) {
    ObjectClass <- c(ObjectClass, "hourly", "GR")

    TimeStep <- as.integer(60 * 60)

    BOOL <- TRUE
  }
  if (identical(FUN_MOD, RunModel_GR4J) |
      identical(FUN_MOD, RunModel_GR5J) |
      identical(FUN_MOD, RunModel_GR6J)) {
    ObjectClass <- c(ObjectClass, "daily", "GR")

    TimeStep <- as.integer(24 * 60 * 60)

    BOOL <- TRUE
  }
  if (identical(FUN_MOD, RunModel_GR2M)) {
    ObjectClass <- c(ObjectClass, "GR", "monthly")

    TimeStep <- as.integer(c(28, 29, 30, 31) * 24 * 60 * 60)

    BOOL <- TRUE
  }
  if (identical(FUN_MOD, RunModel_GR1A)) {
    ObjectClass <- c(ObjectClass, "GR", "yearly")

    TimeStep <- as.integer(c(365, 366) * 24 * 60 * 60)

    BOOL <- TRUE
  }
  if (identical(FUN_MOD, RunModel_CemaNeige)) {
    ObjectClass <- c(ObjectClass, "daily", "CemaNeige")

    TimeStep <- as.integer(24 * 60 * 60)

    BOOL <- TRUE
  }
  if (identical(FUN_MOD, RunModel_CemaNeigeGR4J) |
      identical(FUN_MOD, RunModel_CemaNeigeGR5J) |
      identical(FUN_MOD, RunModel_CemaNeigeGR6J)) {
    ObjectClass <- c(ObjectClass, "daily", "GR", "CemaNeige")

    TimeStep <- as.integer(24 * 60 * 60)

    BOOL <- TRUE
  }
  if (identical(FUN_MOD, RunModel_CemaNeigeGR4H) | identical(FUN_MOD, RunModel_CemaNeigeGR5H)) {
    ObjectClass <- c(ObjectClass, "hourly", "GR", "CemaNeige")

    TimeStep <- as.integer(60 * 60)

    BOOL <- TRUE
  }
  if (!BOOL) {
    stop("incorrect 'FUN_MOD' for use in 'CreateInputsModel'")
  }

  ##check_arguments
  if ("GR" %in% ObjectClass | "CemaNeige" %in% ObjectClass) {
    if (is.null(DatesR)) {
      stop("'DatesR' is missing")
    }
    if (!"POSIXlt" %in% class(DatesR) & !"POSIXct" %in% class(DatesR)) {
      stop("'DatesR' must be defined as 'POSIXlt' or 'POSIXct'")
    }
    if (!"POSIXlt" %in% class(DatesR)) {
      DatesR <- as.POSIXlt(DatesR)
    }
    if (!difftime(tail(DatesR, 1), tail(DatesR, 2), units = "secs")[[1]] %in% TimeStep) {
      TimeStepName <- grep("hourly|daily|monthly|yearly", ObjectClass, value = TRUE)
      stop(paste0("the time step of the model inputs must be ", TimeStepName, "\n"))
    }
    if (any(duplicated(DatesR))) {
      stop("'DatesR' must not include duplicated values")
    }
    LLL <- length(DatesR)
  }
  if ("GR" %in% ObjectClass) {
    if (is.null(Precip)) {
      stop("Precip is missing")
    }
    if (is.null(PotEvap)) {
      stop("'PotEvap' is missing")
    }
    if (!is.vector(Precip) | !is.vector(PotEvap)) {
      stop("'Precip' and 'PotEvap' must be vectors of numeric values")
    }
    if (!is.numeric(Precip) | !is.numeric(PotEvap)) {
      stop("'Precip' and 'PotEvap' must be vectors of numeric values")
    }
    if (length(Precip) != LLL | length(PotEvap) != LLL) {
      stop("'Precip', 'PotEvap' and 'DatesR' must have the same length")
    }
  }
  if ("CemaNeige" %in% ObjectClass) {
    if (is.null(Precip)) {
      stop("'Precip' is missing")
    }
    if (is.null(TempMean)) {
      stop("'TempMean' is missing")
    }
    if (!is.vector(Precip) | !is.vector(TempMean)) {
      stop("'Precip' and 'TempMean' must be vectors of numeric values")
    }
    if (!is.numeric(Precip) | !is.numeric(TempMean)) {
      stop("'Precip' and 'TempMean' must be vectors of numeric values")
    }
    if (length(Precip) != LLL | length(TempMean) != LLL) {
      stop("'Precip', 'TempMean' and 'DatesR' must have the same length")
    }
    if (is.null(TempMin) != is.null(TempMax)) {
      stop("'TempMin' and 'TempMax' must be both defined if not null")
    }
    if (!is.null(TempMin) & !is.null(TempMax)) {
      if (!is.vector(TempMin) | !is.vector(TempMax)) {
        stop("'TempMin' and 'TempMax' must be vectors of numeric values")
      }
      if (!is.numeric(TempMin) | !is.numeric(TempMax)) {
        stop("'TempMin' and 'TempMax' must be vectors of numeric values")
      }
      if (length(TempMin) != LLL | length(TempMax) != LLL) {
        stop("'TempMin', 'TempMax' and 'DatesR' must have the same length")
      }
    }
    if (!is.null(HypsoData)) {
      if (!is.vector(HypsoData)) {
        stop("'HypsoData' must be a vector of numeric values  if not null")
      }
      if (!is.numeric(HypsoData)) {
        stop("'HypsoData' must be a vector of numeric values  if not null")
      }
      if (length(HypsoData) != 101) {
        stop("'HypsoData' must be of length 101 if not null")
      }
      if (sum(is.na(HypsoData)) != 0 & sum(is.na(HypsoData)) != 101) {
        stop("'HypsoData' must not contain any NA if not null")
      }
    }
    if (!is.null(ZInputs)) {
      if (length(ZInputs) != 1) {
        stop("'ZInputs' must be a single numeric value if not null")
      }
      if (is.na(ZInputs) | !is.numeric(ZInputs)) {
        stop("'ZInputs' must be a single numeric value if not null")
      }
    }
    if (is.null(HypsoData)) {
      if (verbose) {
        warning("'HypsoData' is missing: a single layer is used and no extrapolation is made")
      }
      HypsoData <- as.numeric(rep(NA, 101))
      ZInputs   <- as.numeric(NA)
      NLayers   <- as.integer(1)

    }
    if (is.null(ZInputs)) {
      if (verbose & !identical(HypsoData, as.numeric(rep(NA, 101)))) {
        warning("'ZInputs' is missing: HypsoData[51] is used")
      }
      ZInputs <- HypsoData[51L]
    }
    if (NLayers <= 0) {
      stop("'NLayers' must be a positive integer value")
    }
    if (NLayers != as.integer(NLayers)) {
      warning("Coerce 'NLayers' to be of integer type (",  NLayers, ": ", as.integer(NLayers), ")")
      NLayers <- as.integer(NLayers)
    }
  }

  ## check semi-distributed mode
  if (!is.null(Qupstream) & !is.null(LengthHydro) & !is.null(BasinAreas)) {
    ObjectClass <- c(ObjectClass, "SD")
  } else if (verbose & !all(c(is.null(Qupstream), is.null(LengthHydro), is.null(BasinAreas)))) {
    warning("Missing argument: 'Qupstream', 'LengthHydro' and 'BasinAreas' must all be set to run in a semi-distributed mode. The lumped mode will be used")
  }
  if ("SD" %in% ObjectClass) {
    if (!("daily" %in% ObjectClass) & !("hourly" %in% ObjectClass)) {
      stop("Only daily and hourly time steps can be used in a semi-distributed mode")
    }
    if (!is.matrix(Qupstream) | !is.numeric(Qupstream)) {
      stop("'Qupstream' must be a matrice of numeric values")
    }
    if (!is.vector(LengthHydro) | !is.vector(BasinAreas) | !is.numeric(LengthHydro) | !is.numeric(BasinAreas)) {
      stop("'LengthHydro' and 'BasinAreas' must be vectors of numeric values")
    }
    if (ncol(Qupstream) != length(LengthHydro)) {
      stop("'Qupstream' number of columns and 'LengthHydro' length must be equal")
    }
    if (length(LengthHydro) + 1 != length(BasinAreas)) {
      stop("'BasinAreas' must have one more element than 'LengthHydro'")
    }
    if (nrow(Qupstream) != LLL) {
      stop("'Qupstream' must have same number of rows as 'DatesR' length")
    }
    if(any(is.na(Qupstream))) {
      stop("'Qupstream' cannot contain any NA value")
    }
    if(any(LengthHydro > 1000)) {
      warning("The unit of 'LengthHydro' has changed from m to km in v1.7 of airGR: values superior to 1000 km seem unrealistic")
    }
  }

  ##check_NA_values
  BOOL_NA <- rep(FALSE, length(DatesR))

  if ("GR" %in% ObjectClass) {
    BOOL_NA_TMP <- (Precip  < 0) | is.na(Precip)
    if (sum(BOOL_NA_TMP) != 0) {
      BOOL_NA <- BOOL_NA |  BOOL_NA_TMP
      if (verbose) {
        warning("Values < 0 or NA values detected in 'Precip' series")
      }
    }
    BOOL_NA_TMP <- (PotEvap < 0) | is.na(PotEvap)
    if (sum(BOOL_NA_TMP) != 0) {
      BOOL_NA <- BOOL_NA | BOOL_NA_TMP
      if (verbose) {
        warning("Values < 0 or NA values detected in 'PotEvap' series")
      }
    }
  }
  if ("CemaNeige" %in% ObjectClass) {
    BOOL_NA_TMP <- (Precip  < 0) | is.na(Precip)
    if (sum(BOOL_NA_TMP) != 0) {
      BOOL_NA <- BOOL_NA | BOOL_NA_TMP
      if (verbose) {
        warning("Values < 0 or NA values detected in 'Precip' series")
      }
    }
    BOOL_NA_TMP <- (TempMean < (-150)) | is.na(TempMean)
    if (sum(BOOL_NA_TMP) != 0) {
      BOOL_NA <- BOOL_NA | BOOL_NA_TMP
      if (verbose) {
        warning("Values < -150 or NA values detected in 'TempMean' series")
      }
    }
    if (!is.null(TempMin) & !is.null(TempMax)) {
      BOOL_NA_TMP <- (TempMin < (-150)) | is.na(TempMin)
      if (sum(BOOL_NA_TMP) != 0) {
        BOOL_NA <- BOOL_NA | BOOL_NA_TMP
        if (verbose) {
          warning("Values < -150 or NA values detected in 'TempMin' series")
        }
      }
      BOOL_NA_TMP <- (TempMax < (-150)) | is.na(TempMax)
      if (sum(BOOL_NA_TMP) != 0) {
        BOOL_NA <- BOOL_NA | BOOL_NA_TMP
        if (verbose) {
          warning("Values < -150 or NA values detected in 'TempMax' series")
        }
      }
    }
  }
  if (sum(BOOL_NA) != 0) {
    WTxt <- NULL
    WTxt <- paste(WTxt, "\t Missing values are not allowed in 'InputsModel'", sep = "")

    Select <- (max(which(BOOL_NA)) + 1):length(BOOL_NA)

    if (Select[1L] > Select[2L]) {
      stop("time series could not be trunced since missing values were detected at the last time-step")
    }
    if ("GR" %in% ObjectClass) {
      Precip  <- Precip[Select]
      PotEvap <- PotEvap[Select]
    }
    if ("CemaNeige" %in% ObjectClass) {
      Precip   <- Precip[Select]
      TempMean <- TempMean[Select]
      if (!is.null(TempMin) & !is.null(TempMax)) {
        TempMin <- TempMin[Select]
        TempMax <- TempMax[Select]
      }
    }

    DatesR <- DatesR[Select]

    WTxt <- paste0(WTxt, "\t -> data were trunced to keep the most recent available time-steps")
    WTxt <- paste0(WTxt, "\t -> ", length(Select), " time-steps were kept")

    if (!is.null(WTxt) & verbose) {
      warning(WTxt)
    }
  }


  ##DataAltiExtrapolation_Valery
  if ("CemaNeige" %in% ObjectClass) {
    RESULT <- DataAltiExtrapolation_Valery(DatesR = DatesR,
                                           Precip = Precip, PrecipScale = PrecipScale,
                                           TempMean = TempMean, TempMin = TempMin, TempMax = TempMax,
                                           ZInputs = ZInputs, HypsoData = HypsoData, NLayers = NLayers,
                                           verbose = verbose)
    if (verbose) {
      if (NLayers == 1) {
        message("input series were successfully created on 1 elevation layer for use by CemaNeige")
      } else {
        message( "input series were successfully created on ", NLayers, " elevation layers for use by CemaNeige")
      }
    }
  }


  ##Create_InputsModel
  InputsModel <- list(DatesR = DatesR)
  if ("GR" %in% ObjectClass) {
    InputsModel <- c(InputsModel, list(Precip = as.double(Precip), PotEvap = as.double(PotEvap)))
  }
  if ("CemaNeige" %in% ObjectClass) {
    InputsModel <- c(InputsModel, list(LayerPrecip          = RESULT$LayerPrecip,
                                       LayerTempMean        = RESULT$LayerTempMean,
                                       LayerFracSolidPrecip = RESULT$LayerFracSolidPrecip,
                                       ZLayers              = RESULT$ZLayers))
  }
  if ("SD" %in% ObjectClass) {
    InputsModel <- c(InputsModel, list(Qupstream = Qupstream,
                                       LengthHydro   = LengthHydro,
                                       BasinAreas = BasinAreas))
  }

  class(InputsModel) <- c("InputsModel", ObjectClass)

  return(InputsModel)



}