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#!/usr/local/public/bin/Rscript --vanilla --slave --no-site-file

## 170116_NmrPreprocessing.R
## Manon Martin and Marie Tremblay-Franco

##======================================================
##======================================================
# Preamble
##======================================================
##======================================================

runExampleL <- FALSE


##------------------------------
## Options
##------------------------------
strAsFacL <- options()$stringsAsFactors
options(stringsAsFactors = FALSE)

##------------------------------
## Libraries laoding
##------------------------------
library(batch)
library(ptw)
library(Matrix)
library(ggplot2)
library(gridExtra)
library(reshape2)


# R script call
source_local <- function(fname)
{
	argv <- commandArgs(trailingOnly = FALSE)
	base_dir <- dirname(substring(argv[grep("--file=", argv)], 8))
	source(paste(base_dir, fname, sep="/"))
}
#Import the different functions
source_local("NmrPreprocessing_script.R")
source_local("DrawFunctions.R")

##------------------------------
## Script
##------------------------------
runExampleL <- FALSE


if(!runExampleL)
  argLs <- parseCommandArgs(evaluate=FALSE)

sink(argLs$logOut)


##------------------------------
## Errors ?????????????????????
##------------------------------


##------------------------------
## Constants
##------------------------------
topEnvC <- environment()
flagC <- "\n"




# log file
# print(argLs[["logOut"]])

## Starting
cat("\nStart of 'Preprocessing' Galaxy module call: ", as.character(Sys.time()), "\n", sep = "")


##======================================================
##======================================================
## Parameters Loading
##======================================================
##======================================================

# graphical inputs
FirstOPCGraph <- argLs[["FirstOPCGraph"]]
SSGraph <- argLs[["SSGraph"]]
ApodGraph <- argLs[["ApodGraph"]]
FTGraph <- argLs[["FTGraph"]]
SRGraph <- argLs[["SRGraph"]]
ZeroOPCGraph <- argLs[["ZeroOPCGraph"]]
BCGraph <- argLs[["BCGraph"]]
FinalGraph <- argLs[["FinalGraph"]]


# 1rst order phase correction ------------------------
  # Inputs
	## Data matrix
Fid_data0 <- read.table(argLs[["dataMatrixFid"]],header=TRUE, check.names=FALSE, sep='\t')
# Fid_data0 <- Fid_data0[,-1]
Fid_data0 <- as.matrix(Fid_data0)

	## Samplemetadata
samplemetadataFid <- read.table(argLs[["sampleMetadataFid"]],check.names=FALSE,header=TRUE,sep="\t")
samplemetadataFid <- as.matrix(samplemetadataFid)


# water and solvent(s) correction ------------------------
  # Inputs
lambda <- argLs[["lambda"]]



# apodization -----------------------------------------
  # Inputs
phase=0
rectRatio=1/2
gaussLB=1
expLB=1
apodization <- argLs[["apodizationMethod"]]

if (apodization=='exp'){
  expLB <- argLs[["expLB"]]
  } else if (apodization=='cos2'){
  phase <- argLs[["phase"]]
  } else if (apodization=='hanning'){
  phase <- argLs[["phase"]]
  } else if (apodization=='hamming'){
  phase <- argLs[["phase"]]
  } else if (apodization=='blockexp'){
  rectRatio <- argLs[["rectRatio"]]
  expLB <- argLs[["expLB"]]
  } else if (apodization=='blockcos2'){
  rectRatio <- argLs[["rectRatio"]]
  } else if (apodization=='gauss'){
  rectRatio <- argLs[["rectRatio"]]
  gaussLB <- argLs[["gaussLB"]]
  }		


# Fourier transform ----------------------------------
  # Inputs


# Zero Order Phase Correction -------------------------------
  # Inputs

angle = NULL
excludeZOPC = NULL


zeroOrderPhaseMethod <- argLs[["zeroOrderPhaseMethod"]]
										   
if (zeroOrderPhaseMethod=='manual'){
  angle <- argLs[["angle"]]
}

excludeZoneZeroPhase <- argLs[["excludeZoneZeroPhase.choice"]]
if (excludeZoneZeroPhase == 'YES') {
  excludeZoneZeroPhaseList <- list()
  for(i in which(names(argLs)=="excludeZoneZeroPhase_left")) {
    excludeZoneZeroPhaseLeft <- argLs[[i]]
    excludeZoneZeroPhaseRight <- argLs[[i+1]]
    excludeZoneZeroPhaseList <- c(excludeZoneZeroPhaseList,list(c(excludeZoneZeroPhaseLeft,excludeZoneZeroPhaseRight)))
  }
  excludeZOPC <- excludeZoneZeroPhaseList
}


# Internal referencering ----------------------------------
# Inputs
shiftTreshold = 2 # c
ppm = TRUE
shiftReferencingRangeList = NULL  # fromto.RC
pctNearValue = 0.02 # pc 
rowindex_graph = NULL
ppm_ref = 0 # ppm.ref

# 
# shiftReferencing <- argLs[["shiftReferencing"]]
# print(shiftReferencing)
# 
# if (shiftReferencing=="YES")
# {
#   
# shiftReferencingMethod <- argLs[["shiftReferencingMethod"]]
# 
# if (shiftReferencingMethod == "thres")	{
# 	shiftTreshold <- argLs[["shiftTreshold"]]
# }

shiftReferencingRange <- argLs[["shiftReferencingRange"]]

if (shiftReferencingRange == "near0"){
  pctNearValue <- argLs[["pctNearValue"]]
}

if (shiftReferencingRange == "window"){
  shiftReferencingRangeList <- list()
  for(i in which(names(argLs)=="shiftReferencingRangeLeft")) 
  {
    shiftReferencingRangeLeft <- argLs[[i]]
    shiftReferencingRangeRight <- argLs[[i+1]]
    shiftReferencingRangeList <- c(shiftReferencingRangeList,list(c(shiftReferencingRangeLeft,shiftReferencingRangeRight)))
  }
}

shiftHandling <- argLs[["shiftHandling"]]

ppmvalue <- argLs[["ppmvalue"]]



# }


# Baseline Correction -------------------------------
  # Inputs
lambdaBc <- argLs[["lambdaBc"]] 
pBc <- argLs[["pBc"]] 
epsilon <- argLs[["epsilon"]] 

excludeBC = NULL

excludeZoneBC <- argLs[["excludeZoneBC.choice"]]
if (excludeZoneBC == 'YES') {
  excludeZoneBCList <- list()
  for(i in which(names(argLs)=="excludeZoneBC_left")) {
    excludeZoneBCLeft <- argLs[[i]]
    excludeZoneBCRight <- argLs[[i+1]]
    excludeZoneBCList <- c(excludeZoneBCList,list(c(excludeZoneBCLeft,excludeZoneBCRight)))
  }
  excludeBC <- excludeZoneBCList
}

# transformation of negative values -------------------------------
  # Inputs
NegativetoZero <- argLs[["NegativetoZero"]]


  # Outputs
nomGraphe <- argLs[["graphOut"]]
# dataMatrixOut <- argLs[["dataMatrixOut"]]
log <- argLs[["logOut"]]



## Checking arguments
##-------------------
error.stock <- "\n"

if(length(error.stock) > 1)
  stop(error.stock)
  

##======================================================
##======================================================  
## Computation
##======================================================
##======================================================

pdf(nomGraphe, onefile = TRUE, width = 13, height = 13)

# FirstOrderPhaseCorrection ---------------------------------
Fid_data <- GroupDelayCorrection(Fid_data0, Fid_info = samplemetadataFid, group_delay = NULL)

if (FirstOPCGraph == "YES") {
  title = "FIDs after Group Delay Correction"
  DrawSignal(Fid_data, subtype = "stacked",
             ReImModArg = c(TRUE, FALSE, FALSE, FALSE), vertical = T, 
             xlab = "Frequency", num.stacked = 4, 
             main = title, createWindow=FALSE)
}

# SolventSuppression ---------------------------------
Fid_data <- SolventSuppression(Fid_data, lambda.ss = lambda, ptw.ss = TRUE, plotSolvent = F, returnSolvent = F)
	
if (SSGraph == "YES") {
  title = "FIDs after Solvent Suppression "
  DrawSignal(Fid_data, subtype = "stacked",
             ReImModArg = c(TRUE, FALSE, FALSE, FALSE), vertical = T, 
             xlab = "Frequency", num.stacked = 4, 
             main = title, createWindow=FALSE)
}


# Apodization ---------------------------------	
Fid_data <- Apodization(Fid_data, Fid_info = samplemetadataFid, DT = NULL, 
                         type.apod = apodization, phase = phase, rectRatio = rectRatio, gaussLB = gaussLB, expLB = expLB, plotWindow = F, returnFactor = F)

if (ApodGraph == "YES") {
  title = "FIDs after Apodization"
  DrawSignal(Fid_data, subtype = "stacked",
             ReImModArg = c(TRUE, FALSE, FALSE, FALSE), vertical = T, 
             xlab = "Frequency", num.stacked = 4, 
             main = title, createWindow=FALSE)
}


# FourierTransform ---------------------------------
Spectrum_data <- FourierTransform(Fid_data, Fid_info = samplemetadataFid, reverse.axis = TRUE)


if (FTGraph == "YES") {
  title = "Fourier transformed spectra"
  DrawSignal(Spectrum_data, subtype = "stacked",
             ReImModArg = c(TRUE, FALSE, FALSE, FALSE), vertical = T, 
             xlab = "Frequency", num.stacked = 4, 
             main = title, createWindow=FALSE)
}



# ZeroOrderPhaseCorrection ---------------------------------
Spectrum_data  <- ZeroOrderPhaseCorrection(Spectrum_data, type.zopc = zeroOrderPhaseMethod,
                                           plot_rms = NULL, returnAngle = FALSE,
                                           createWindow = TRUE,angle = angle,
                                           plot_spectra = FALSE,
                                           ppm.zopc = TRUE, exclude.zopc = excludeZOPC)


# InternalReferencing ---------------------------------
# if (shiftReferencing=="YES") {
Spectrum_data <- InternalReferencing(Spectrum_data, samplemetadataFid, method = "max", range = shiftReferencingRange,
                                     ppm.value = ppmvalue, shiftHandling = shiftHandling, ppm.ir = TRUE,
                                     fromto.RC = shiftReferencingRangeList, pc = pctNearValue)

if (SRGraph == "YES") {
  title = "Spectra after Shift Referencing"
  DrawSignal(Spectrum_data, subtype = "stacked",
             ReImModArg = c(TRUE, FALSE, FALSE, FALSE), vertical = T, 
             xlab = "Frequency", num.stacked = 4, 
             main = title, createWindow=FALSE)
}

# }

if (ZeroOPCGraph == "YES") {
title = "Spectra after Zero Order Phase Correction"
DrawSignal(Spectrum_data, subtype = "stacked",
           ReImModArg = c(TRUE, FALSE, FALSE, FALSE), vertical = T, 
           xlab = "Frequency", num.stacked = 4, 
           main = title, createWindow=FALSE)
}


# BaselineCorrection ---------------------------------									 
Spectrum_data <- BaselineCorrection(Spectrum_data, ptw.bc = TRUE, lambda.bc = lambdaBc, 
                                    p.bc = pBc, eps = epsilon, ppm.bc = TRUE, 
                                    exclude.bc = excludeBC,
                                    returnBaseline = F) 



if (BCGraph == "YES") {
title = "Spectra after Baseline Correction"
DrawSignal(Spectrum_data, subtype = "stacked",
           ReImModArg = c(TRUE, FALSE, FALSE, FALSE), vertical = T, 
           xlab = "Frequency", num.stacked = 4, 
           main = title, createWindow=FALSE)
}


# NegativeValuesZeroing ---------------------------------
if (NegativetoZero=="YES") {
  Spectrum_data <- NegativeValuesZeroing(Spectrum_data)
}

if (FinalGraph == "YES") {
  title = "Final preprocessed spectra"
  DrawSignal(Spectrum_data, subtype = "stacked",
             ReImModArg = c(TRUE, FALSE, FALSE, FALSE), vertical = T, 
             xlab = "Frequency", num.stacked = 4, 
             main = title, createWindow=FALSE)
}

invisible(dev.off())


data_variable <- matrix(NA, nrow = 1, ncol = dim(Spectrum_data)[2], dimnames = list("ID", NULL)) 
colnames(data_variable) <- colnames(Spectrum_data)
data_variable[1,] <- colnames(data_variable)


##======================================================
##======================================================
## Saving
##======================================================
##======================================================

# Data Matrix
write.table(t(Re(Spectrum_data)),file=argLs$dataMatrix, quote=FALSE, row.names=TRUE, sep="\t", col.names=TRUE)

# Variable metadata
write.table(data_variable,file=argLs$variableMetadata, quote=FALSE, row.names=TRUE, sep="\t", col.names=TRUE)

# log file
# write.table(t(data.frame(argLs)), file = argLs$logOut, col.names = FALSE, quote=FALSE)

# input arguments
cat("\n INPUT and OUTPUT ARGUMENTS :\n")

argLs


## Ending

cat("\nEnd of 'Preprocessing' Galaxy module call: ", as.character(Sys.time()), sep = "")

sink()

options(stringsAsFactors = strAsFacL)

rm(list = ls())