#! /bin/bash
# invoke gnuplot to compare soil states (special created by extacting one layer from soillay.out)

# invocation: allsoil [Col_num-1 Col_num-2 ... Colnum-# file-1] [Col_num-1 Col_num-2 ... Colnum-# file-2] ... [Col_num-1 Col_num-2 ... Colnum-# file-#]

# set up column and title correspondence
mincol=6
maxcol=28
coltitle[6]=`echo "6) Soil Layer Thickness (mm)"`
coltitle[7]=`echo "7) Bulk Density (Mg/m^3)"`
coltitle[8]=`echo "8) Aggregate Stability ln(J/kg)"`
coltitle[9]=`echo "9) Minimum Aggregate Stability ln(J/kg)"`
coltitle[10]=`echo "10) Mean Aggregate Stability ln(J/kg)"`
coltitle[11]=`echo "11) Maximum Aggregate Stability ln(J/kg)"`
coltitle[12]=`echo "12) Minimum Aggregate Size (mm)"`
coltitle[13]=`echo "13) Minimum GMD Aggregate Size (mm)"`
coltitle[14]=`echo "14) GMD Aggregate Size (mm)"`
coltitle[15]=`echo "15) Maximum GMD Aggregate Size (mm)"`
coltitle[16]=`echo "16) Maximum Aggregate Size (mm)"`
coltitle[17]=`echo "17) GSD Aggregate Size (mm)"`
coltitle[18]=`echo "18) Aggregate Density (Mg/m^3)"`
coltitle[19]=`echo "19) Relative Aggregate Stability"`
coltitle[20]=`echo "20) Relative GMD Aggregate Size"`
coltitle[21]=`echo "21) Freeze Transition"`
coltitle[22]=`echo "22) Freeze-Thaw Transition"`
coltitle[23]=`echo "23) Thaw Transition"`
coltitle[24]=`echo "24) Soil Remains Frozen"`
coltitle[25]=`echo "25) Wetting Transition"`
coltitle[26]=`echo "26) Drying Transition"`
coltitle[27]=`echo "27) Warm Puddling Transition"`
coltitle[28]=`echo "28) Bulk Density Change with Wetting"`

# short column titles
shortcoltitle[6]=`echo "Thick"`
shortcoltitle[7]=`echo "BDen"`
shortcoltitle[8]=`echo "AgSt"`
shortcoltitle[9]=`echo "AgSt min"`
shortcoltitle[10]=`echo "Agst mean"`
shortcoltitle[11]=`echo "Agst max"`
shortcoltitle[12]=`echo "AgSz min"`
shortcoltitle[13]=`echo "AgGMD min"`
shortcoltitle[14]=`echo "AgGMD"`
shortcoltitle[15]=`echo "AgGMD max"`
shortcoltitle[16]=`echo "AgSz max"`
shortcoltitle[17]=`echo "AgGSD"`
shortcoltitle[18]=`echo "AgDen"`
shortcoltitle[19]=`echo "AgSt (0-1)"`
shortcoltitle[20]=`echo "AgGMD (0-1)"`
shortcoltitle[21]=`echo "Freeze"`
shortcoltitle[22]=`echo "Frez-thaw"`
shortcoltitle[23]=`echo "Thaw"`
shortcoltitle[24]=`echo "Frozen"`
shortcoltitle[25]=`echo "Wetting"`
shortcoltitle[26]=`echo "Drying"`
shortcoltitle[27]=`echo "WarmPud"`
shortcoltitle[28]=`echo "BDwet"`

# set up column groupings
tgroups=5
colgroupnum[6]=1
colgroupnum[7]=2
colgroupnum[8]=3
colgroupnum[9]=3
colgroupnum[10]=3
colgroupnum[11]=3
colgroupnum[12]=1
colgroupnum[13]=1
colgroupnum[14]=1
colgroupnum[15]=1
colgroupnum[16]=1
colgroupnum[17]=1
colgroupnum[18]=2
colgroupnum[19]=4
colgroupnum[20]=4
colgroupnum[21]=5
colgroupnum[22]=5
colgroupnum[22]=5
colgroupnum[23]=5
colgroupnum[24]=5
colgroupnum[25]=5
colgroupnum[26]=5
colgroupnum[27]=5
colgroupnum[28]=5

# group y axis labels
grouplabel[1]=`echo "(mm)"`
grouplabel[2]=`echo "Density (Mg/m^3)"`
grouplabel[3]=`echo "Stability ln(J/kg)"`
grouplabel[4]=`echo "Nondimensional"`
grouplabel[5]=`echo "Binary (0-1)"`

# grab and count command arguments
let ncmdarg=0
for ncmd in $*
do
    let ncmdarg=ncmdarg+1
    cmdarg[ncmdarg]="$ncmd"
    # echo "Command argument $ncmdarg = ${cmdarg[ncmdarg]}"
done

# check command argument count, zero means none
if [[ ncmdarg -eq 0 ]]
then
    echo 'invocation: allsoil [Col_num-1 Col_num-2 ... Colnum-# file-1] [Col_num-1 Col_num-2 ... Colnum-# file-2] ... [Col_num-1 Col_num-2 ... Colnum-# file-#]'
    echo 'Valid Column Numbers are:'
    for num in $( seq $mincol $maxcol )
    do
        echo ${coltitle[num]}
    done
    exit
fi

# parse command arguments checking for numbers and when not a number checking for a valid file name
# initialize total number of columns parsed
tcols=0
# initialize total number of valid file names parsed (must assume one when column numbers preceed file names)
tfiles=1
# initialize column count for first file name
tcolfile[tfiles]=0
for ncmd in $( seq 1 $ncmdarg )
do
    # test if it is an integer number
    echo "${cmdarg[ncmd]}" | grep [^0-9] > /dev/null 2>&1
    if [ "$?" -eq "0" ]
    then
        # not a column number, check for file name
        if [ -e "${cmdarg[ncmd]}" ]
        then
            # valid file name, check for preceeding columns
            if [[ tcolfile[tfiles] -gt 0 ]]
            then
                # columns are listed in front of this name
                # back fill column file name pairings
                for ncol in $( seq 1 ${tcolfile[tfiles]} )
                do
                    # write file name
                    let index=(tcols-tcolfile[tfiles])+ncol
                    filename[index]="${cmdarg[ncmd]}"
                done
                # add file name to unique file names list
                ufilename[tfiles]="${cmdarg[ncmd]}"
                # Increment file number counter
                let tfiles+=1
            fi

            # find number of index blocks in this file
            linecount=`wc -l < ${ufilename[tfiles-1]}`
            lineswithnumbers=`grep -c '\.' < ${ufilename[tfiles-1]}`
            let fileindex=(linecount-lineswithnumbers-1)/2
            #echo "fileindex = ${fileindex}"

            # check to use minimum of all files
            numindex=`echo "$fileindex $numindex" | stats min`
            #echo "numindex now equal to $numindex"
        else
            # not a valid file name, show error message and exit
            echo \'"${cmdarg[ncmd]}"\' is not valid file name.
            exit
        fi
    else
        # it is an integer number, check for valid column number
        if [[ ${cmdarg[ncmd]} -lt $mincol ]]
        then
            echo \'"${cmdarg[ncmd]}"\' is a Bad Column Number
            echo 'invocation: allsoil [Col_num-1 Col_num-2 ... Colnum-# file-1] [Col_num-1 Col_num-2 ... Colnum-# file-2] ... [Col_num-1 Col_num-2 ... Colnum-# file-#]'
            echo 'Valid Column Numbers are:'
            for num in $( seq $mincol $maxcol )
            do
                echo ${coltitle[num]}
            done
            exit
        elif [[ ${cmdarg[ncmd]} -gt $maxcol ]]
        then
            echo \'"${cmdarg[ncmd]}"\' is a Bad Column Number
            echo 'invocation: allsoil [Col_num-1 Col_num-2 ... Colnum-# file-1] [Col_num-1 Col_num-2 ... Colnum-# file-2] ... [Col_num-1 Col_num-2 ... Colnum-# file-#]'
            echo 'Valid Column Numbers are:'
            for num in $( seq $mincol $maxcol )
            do
                echo ${coltitle[num]}
            done
            exit
        fi

        # valid column number, add into colum number array and increment indexes
        let tcols+=1
        let tcolfile[tfiles]+=1
        colnum[tcols]="${cmdarg[ncmd]}"
        # set column group number
        colgroup[tcols]=${colgroupnum[${colnum[tcols]}]}
        # set column file number
        colfilenum[tcols]=${tfiles}
    fi
done

# screen for terminating valid file name
if [ ! -e "${filename[tcols]}" ]
then
    echo "No terminating file name."
    echo 'invocation: allsoil [Col_num-1 Col_num-2 ... Colnum-# file-1] [Col_num-1 Col_num-2 ... Colnum-# file-2] ... [Col_num-1 Col_num-2 ... Colnum-# file-#]'
fi

# set tfiles to the correct count
let tfiles-=1

# echo the resulting arrays of column numbers and file names
# echo "The input command line results in the following columns and file names:"
# for num in $( seq 1 ${tcols} )
# do
#     echo "${colnum[num]}  ${colgroup[num]}  ${filename[num]}"
# done
# exit

# set up graph to column group correspondence
# sort group list (result is zero reference array)
colgroupsort=(`echo ${colgroup[@]} | transpose | sort | transpose`)

# total number of column groups to be plotted
tgroups=1
# list of groups represented
groupnum[1]=${colgroupsort[0]}
let tindex=tcols-1
for num in $( seq 1 ${tindex} )
do
    let index=num-1
    if [[ ${colgroupsort[num]} -ne ${colgroupsort[index]} ]]
    then
        let tgroups+=1
        groupnum[tgroups]=${colgroupsort[num]}
    fi
done

# show groups
# echo "unique group numbers"
# echo ${groupnum[@]}
# exit

# find maximum column value for each column and assign that to the maximum for the group
for num in $( seq 1 $tcols )
do
    echo -n " Find maximum value: column ${colnum[num]} in ${filename[num]} : "

    # find selected column maximum value for this file
    filemaxval=`dm "if x${colnum[num]}>0 then x${colnum[num]} else SKIP" < ${filename[num]} | stats max`
    echo "${filemaxval}"

    # check for maximum for this column group for all files
    groupmaxval[${colgroup[num]}]=`echo "$filemaxval ${groupmaxval[${colgroup[num]}]}" | stats max`
    echo "groupmaxval(${colgroup[num]}) now equal to ${groupmaxval[${colgroup[num]}]}"
done

# rather than loop within gnuplot, create specific plot lines
# for each year so these parameters can be added to the 
# title of the graph.

# associate graph title name with column number specified
titlebase=${coltitle[${colnum[1]}]}

# create text for graph title, using file names
graphtitle="Files: "
for num in $( seq 1 ${tfiles} )
do
    graphtitle=`echo "${graphtitle} ${num}) ${ufilename[num]} "`
done

# Set up plot sizes for multiple plots (ie. groups)
if [[ $tgroups -gt 1 ]]
then
    # plot sizes for each group
    psizebase=$( echo "scale=4; 0.9/${tgroups}" | bc -l )
    for num in $( seq 1 $tgroups )
    do
        # create coordinates
        # y size for plot (x is 1.0)
        if [[ $num -eq 1 ]]
        then
            # increase the size of the first plot
            psize[num]=$( echo "scale=4; ${psizebase}+0.05" | bc -l )
            # place plots from the top down in the order specified
            porigin[num]=$( echo "scale=4; 0.05+($tgroups-$num)*${psizebase}" | bc -l )
        elif [[ $num -eq $tgroups ]]
        then
            # increase the size of the last plot
            psize[num]=$( echo "scale=4; ${psizebase}+0.05" | bc -l )
            porigin[num]=0
        else
            psize[num]=${psizebase}
            porigin[num]=$( echo "scale=4; 0.05+($tgroups-$num)*${psizebase}" | bc -l )
        fi
    done
fi

# write single instance lines top plot file

#--- start pdf ---
echo "set terminal pdf" > temp.plt
echo "set output 'allsoil.pdf'" >> temp.plt
#echo "set xrange [0:366]" >> temp.plt
echo "set xrange [90:150]" >> temp.plt
view_pause=0
#--- end pdf ---

#--- start emf ---
# create temporary directory for files if needed
#tempdir="htemp"
#mkdir -p ${tempdir}
## clear any files
#rm ${tempdir}/*.emf
#echo "set terminal emf monochrome dashed" > temp.plt
#view_pause=0
#echo "set line style 1 lt 1 lw 1" >> temp.plt
#echo "set line style 2 lt 2 lw 1" >> temp.plt
#echo "set line style 3 lt 3 lw 1" >> temp.plt
#echo "set line style 4 lt 4 lw 1" >> temp.plt
#echo "set line style 5 lt 5 lw 1" >> temp.plt
#echo "set line style 6 lt 1 lw 3" >> temp.plt
#echo "set line style 7 lt 2 lw 3" >> temp.plt
#echo "set line style 8 lt 3 lw 3" >> temp.plt
#echo "set line style 9 lt 4 lw 3" >> temp.plt
#echo "set line style 10 lt 5 lw 3" >> temp.plt
#echo "set line style 11 lt 1 lw 5" >> temp.plt
#--- end emf ---

#--- start screen ---
#view_pause=-1
#echo "" > temp.plt
#--- end screen ---

# set legend location
echo "set key left top" >> temp.plt

for year in $(seq $numindex)
do
    echo "Simulation Year = $year"

#    # --- emf output files ---
#    echo "set output '${tempdir}/${year}.emf'" >> temp.plt

    # create graph title line
    echo "set title 'Simulation Yr ${year}, ${graphtitle}'" >> temp.plt

    # set up single or multiple plot windows
    if [[ $tgroups -gt 1 ]]
    then
        echo "multiple plots"
        echo "set size 1.0, 1.0" >> temp.plt
        echo "set origin 0.0, 0.0" >> temp.plt
        echo "set multiplot" >> temp.plt
    fi

    # create plot commands for each group
    for idx in $( seq 1 $tgroups )
    do
        # only print title once, above first graph
        if [[ $idx -gt 1 ]]
        then
            echo "set title ''" >> temp.plt
        fi

        # remove x axis from all but last graph
        if [[ $idx -lt $tgroups ]]
        then
            # remove x axis labels
            echo "set format x ''" >> temp.plt
            echo "set xlabel ''" >> temp.plt
        else
            # remove x axis labels
            echo "set format x '% g'" >> temp.plt
            echo "set xlabel 'Days After Planting'" >> temp.plt
        fi

        # individual sizes for multiplots
        if [[ $tgroups -gt 1 ]]
        then
            # set plot size
            echo "set size 1.0, ${psize[idx]}" >> temp.plt
            echo "set origin 0.0, ${porigin[idx]}" >> temp.plt
        fi

        # set axis scales, labels
        echo "set yrange [0:${groupmaxval[${groupnum[idx]}]}]" >> temp.plt
        echo "set ylabel '${grouplabel[${groupnum[idx]}]}'" >> temp.plt

        # create plot lines for each column and file in this group
        index=0
        for num in $(seq 1 $tcols)
        do
            if [[ colgroup[num] -eq groupnum[idx] ]]
            then
                let index+=1
                let yearm=year-1
                plotline[index]="'${filename[num]}' index ${yearm} using 2:${colnum[num]} with lines title '${colfilenum[num]}) ${shortcoltitle[${colnum[num]}]}', \\"
            fi
        done

        # add plot command to first plotline
        plotline[1]=`echo "${plotline[1]}" | sed -e 's/^.*/plot &/'`

        # strip last plotline of 3 extra characters
        plotline[index]=`echo "${plotline[index]}" | sed -e 's/...$//'`

        # write out plot lines to file
        for num in $(seq 1 $index)
        do
            echo ${plotline[num]} >> temp.plt
        done
    done

    # check multiple plots
    if [[ $tgroups -gt 1 ]]
    then
        # this command necessary to display all plots on some terminals
        echo "unset multiplot" >> temp.plt
    fi

    echo "pause ${view_pause}" >> temp.plt

done

gnuplot temp.plt

#rm temp.plt

exit