#!/bin/sh
cd "${0%/*}" || exit                        # Run from this directory
#------------------------------------------------------------------------------

plotCellR() {
    timeDir=$1
    echo "    Plotting the normal and Reynolds stresses on cell."

    outName="stress-cell.png"
    gnuplot<<PLT_CELL_R
    set terminal pngcairo font "helvetica,20" size 1000, 800
    set xrange [0:1]
    set yrange [-1:8]
    set grid
    set key top right
    set key samplen 2
    set key spacing 0.75
    set xlabel "Channel height from the bottomWall [m]"
    set ylabel "<u_i^' u_i^'> [m2/s2]"
    set offset .05, .05
    set output "$outName"
    set title "Normal and Reynolds stresses on cell"

    input = "$timeDir/inletCell_UPrime2Mean.xy"
    bench = "constant/pointsRdata"

    plot \
        input u 1:2 t "<u^' u^'>" w l lw 2 lc rgb "#009E73", \
        input u 1:5 t "<v^' v^'>" w l lw 2 lc rgb "#F0E440", \
        input u 1:7 t "<w^' w^'>" w l lw 2 lc rgb "#0072B2", \
        input u 1:3 t "<u^' v^'>" w l lw 2 lc rgb "#D55E00", \
        bench u 2:4 t "<u^' u^'>_{DNS}" w l lw 2 dt 2 lc rgb "#009E73", \
        bench u 2:7 t "<v^' v^'>_{DNS}" w l lw 2 dt 2 lc rgb "#F0E440", \
        bench u 2:9 t "<w^' w^'>_{DNS}" w l lw 2 dt 2 lc rgb "#0072B2", \
        bench u 2:5 t "<u^' v^'>_{DNS}" w l lw 2 dt 2 lc rgb "#D55E00"
PLT_CELL_R
}


plotPatchR() {
    timeDir=$1
    echo "    Plotting the normal and Reynolds stresses on inlet patch faces."

    outName="stress-patch.png"
    gnuplot<<PLT_PATCH_R
    set terminal pngcairo font "helvetica,20" size 1000, 800
    set xrange [0:1]
    set yrange [-1:8]
    set grid
    set key top right
    set key samplen 2
    set key spacing 0.75
    set xlabel "Channel height from the bottomWall [m]"
    set ylabel "<u_i^' u_i^'> [m2/s2]"
    set offset .05, .05
    set output "$outName"
    set title "Normal and Reynolds stresses on patch"

    input = "$timeDir/inletPatch_UPrime2Mean.xy"
    bench = "constant/pointsRdata"

    plot \
        input u 1:2 t "<u^' u^'>" w l lw 2 lc rgb "#009E73", \
        input u 1:5 t "<v^' v^'>" w l lw 2 lc rgb "#F0E440", \
        input u 1:7 t "<w^' w^'>" w l lw 2 lc rgb "#0072B2", \
        input u 1:3 t "<u^' v^'>" w l lw 2 lc rgb "#D55E00", \
        bench u 2:4 t "<u^' u^'>_{DNS}" w l lw 2 dt 2 lc rgb "#009E73", \
        bench u 2:7 t "<v^' v^'>_{DNS}" w l lw 2 dt 2 lc rgb "#F0E440", \
        bench u 2:9 t "<w^' w^'>_{DNS}" w l lw 2 dt 2 lc rgb "#0072B2", \
        bench u 2:5 t "<u^' v^'>_{DNS}" w l lw 2 dt 2 lc rgb "#D55E00"
PLT_PATCH_R
}


plotPatchUMean() {
    timeDir=$1
    echo "    Plotting the streamwise mean flow speed on inlet patch faces."

    outName="u-patch.png"
    gnuplot<<PLT_PATCH_UMEAN
    set terminal pngcairo font "helvetica,20" size 1000, 800
    set xrange [0:1]
    set yrange [0:25]
    set grid
    set key top right
    set key samplen 2
    set key spacing 0.75
    set xlabel "Channel height from the bottomWall [m]"
    set ylabel "u [m/s]"
    set offset .05, .05
    set output "$outName"

    input = "$timeDir/inletPatch_UMean.xy"
    bench = "constant/pointsUMeanData"

    plot \
        input u 1:2 t "u" w l lw 2 lc rgb "#009E73", \
        bench u 2:4 t "u_{DNS}" w l lw 2 dt 2 lc rgb "#009E73"
PLT_PATCH_UMEAN
}


#------------------------------------------------------------------------------

# Require gnuplot
command -v gnuplot >/dev/null || {
    echo "gnuplot not found - skipping graph creation" 1>&2
    exit 1
}

# Prepare the benchmark data
cp -f constant/boundaryData/inlet/0/R constant/R
cp -f constant/boundaryData/inlet/points constant/points
cp -f constant/boundaryData/inlet.DFM/0/UMean constant/UMean
cat constant/R | tr -d '()' > constant/Rdata
cat constant/points | tr -d '()' > constant/pointsData
cat constant/UMean | tr -d '()' > constant/UMeanData
paste constant/pointsData constant/Rdata > constant/pointsRdata
paste constant/pointsData constant/UMeanData > constant/pointsUMeanData

# The latestTime in postProcessing/sampling1
timeDir=$(foamListTimes -case postProcessing/sampling1 -latestTime 2>/dev/null)
[ -n "$timeDir" ] || {
    echo "No postProcessing/sampling1 found - skipping graph creation" 1>&2
    exit 1
}

timeDir="postProcessing/sampling1/$timeDir"

plotCellR "$timeDir"
plotPatchR "$timeDir"
plotPatchUMean "$timeDir"


#------------------------------------------------------------------------------