#!/usr/bin/env Rscript

# ----- LOG FILE -----
log_file=file("log.txt", open = "wt")
sink(log_file)
sink(log_file, type = "output")


# ----- PACKAGE -----
cat("\tSESSION INFO\n")

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

pkgs <- c("xcms","batch","RColorBrewer")
loadAndDisplayPackages(pkgs)
cat("\n\n");


# ----- ARGUMENTS -----
cat("\tARGUMENTS INFO\n")
args <- parseCommandArgs(evaluate=FALSE) #interpretation of arguments given in command line as an R list of objects
write.table(as.matrix(args), col.names=F, quote=F, sep='\t')

cat("\n\n")

# ----- PROCESSING INFILE -----
cat("\tARGUMENTS PROCESSING INFO\n")

#saving the specific parameters
method <- args$method

if (!is.null(args$convertRTMinute)) convertRTMinute <- args$convertRTMinute
if (!is.null(args$numDigitsMZ)) numDigitsMZ <- args$numDigitsMZ
if (!is.null(args$numDigitsRT)) numDigitsRT <- args$numDigitsRT
if (!is.null(args$intval)) intval <- args$intval
if (!is.null(args$naTOzero)) naTOzero <- args$naTOzero

cat("\n\n")


# ----- ARGUMENTS PROCESSING -----
cat("\tINFILE PROCESSING INFO\n")

#image is an .RData file necessary to use xset variable given by previous tools
load(args$image)
if (!exists("xdata")) stop("\n\nERROR: The RData doesn't contain any object called 'xdata'. This RData should have been created by an old version of XMCS 2.*")

# Handle infiles
if (!exists("singlefile")) singlefile <- NULL
if (!exists("zipfile")) zipfile <- NULL
rawFilePath <- getRawfilePathFromArguments(singlefile, zipfile, args)
zipfile <- rawFilePath$zipfile
singlefile <- rawFilePath$singlefile
directory <- retrieveRawfileInTheWorkingDirectory(singlefile, zipfile)

# Check some character issues
md5sumList <- list("origin" = getMd5sum(directory))
checkXmlStructure(directory)
checkFilesCompatibilityWithXcms(directory)


cat("\n\n")


# ----- MAIN PROCESSING INFO -----
cat("\tMAIN PROCESSING INFO\n")


cat("\t\tCOMPUTE\n")


cat("\t\t\tPerform the correspondence\n")
args$sampleGroups = xdata$sample_group

# clear the arguement list to remove unexpected key/value as singlefile_galaxyPath or method ...
args <- args[names(args) %in% slotNames(do.call(paste0(method,"Param"), list(sampleGroups=c(1,2))))]

groupChromPeaksParam <- do.call(paste0(method,"Param"), args)
print(groupChromPeaksParam)
xdata <- groupChromPeaks(xdata, param = groupChromPeaksParam)


cat("\t\tDRAW GRAPHICS\n")
getPlotChromPeakDensity(xdata, param = groupChromPeaksParam)

if (exists("intval")) {
    getPeaklistW4M(xdata, intval, convertRTMinute, numDigitsMZ, numDigitsRT, naTOzero, "variableMetadata.tsv", "dataMatrix.tsv")
}

cat("\n\n")

# ----- EXPORT -----

cat("\tXCMSnExp OBJECT INFO\n")
print(xdata)
cat("\n\n")

cat("\txcmsSet OBJECT INFO\n")
# Get the legacy xcmsSet object
xset <- getxcmsSetObject(xdata)
print(xset)
cat("\n\n")

#saving R data in .Rdata file to save the variables used in the present tool
objects2save = c("xdata","zipfile","singlefile","md5sumList","sampleNamesList", "chromTIC", "chromBPI", "chromTIC_adjusted", "chromBPI_adjusted")
save(list=objects2save[objects2save %in% ls()], file="group.RData")

cat("\n\n")


cat("\tDONE\n")