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

# settings

    # operand setups
    setups="
    DFSEM
    "


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

plot_R_vs_y() {

    setup="$1"
    endTime="$2"

    # benchmarkFile="ReTau-395/dataset/chan395.reystress"

    n=0
    m=0
    for l in {1..11}
    do
        m=$(($m+5))
        sampleFiles[$n]="results/$setup/postProcessing/sample/$endTime/l${m}_columnAverage:columnAverage(UPrime2Mean).xy"
        n=$(($n+1))
    done

    image="plots/$setup/Ruu_vs_y.png"

    gnuplot<<PLT_RUU_VS_Y
    set terminal pngcairo font "helvetica,20" size 5000, 1000
    set grid
    set xrange [0:8]
    set yrange [0:1]
    set key right top
    set key samplen 2
    set key spacing 0.75
    set xlabel "R_{uu} [m^2/s^2]"
    set ylabel "y/h [-]"
    set output "$image"
    set multiplot layout 1,11 title "Setup: $setup" noenhanced

    # Benchmark - Experimental
        # benchmark ="$benchmarkFile"

    # OpenFOAM - Numerical
        samples="${sampleFiles[*]}"
        list="5h 10h 15h 20h 25h 30h 35h 40h 45h 50h 55h"

    do for [i = 1:11] {
        if (i != 1) { unset ylabel }
        plot \
            word(samples, i) u 2:1 t word(list, i) w l lw 2 lc rgb "#4169e1"
            # benchmark  every 4 u 3:1 t "DNS" w p ps 2 pt 7 lc rgb "#D55E00"
    }

    unset multiplot
    unset output
PLT_RUU_VS_Y

    image="plots/$setup/Rvv_vs_y.png"

    gnuplot<<PLT_RVV_VS_Y
    set terminal pngcairo font "helvetica,20" size 5000, 1000
    set grid
    set xrange [0:1]
    set yrange [0:1]
    set key right top
    set key samplen 2
    set key spacing 0.75
    set xlabel "R_{vv} [m^2/s^2]"
    set ylabel "y/h [-]"
    set output "$image"
    set multiplot layout 1,11 title "Setup: $setup" noenhanced

    # Benchmark - Experimental
        # benchmark="$benchmarkFile"

    # OpenFOAM - Numerical
        samples="${sampleFiles[*]}"
        list="5h 10h 15h 20h 25h 30h 35h 40h 45h 50h 55h"

    do for [i = 1:11] {
        if (i != 1) { unset ylabel }
        plot \
            word(samples, i) u 5:1 t word(list, i) w l lw 2 lc rgb "#4169e1"
            # benchmark every 4 u 4:1 t "DNS" w p ps 2 pt 7 lc rgb "#D55E00"
    }

    unset multiplot
    unset output
PLT_RVV_VS_Y

    image="plots/$setup/Rww_vs_y.png"

    gnuplot<<PLT_RWW_VS_Y
    set terminal pngcairo font "helvetica,20" size 5000, 1000
    set grid
    set xrange [0:1.8]
        set xtics 1.8/4
    set yrange [0:1]
    set key right top
    set key samplen 2
    set key spacing 0.75
    set xlabel "R_{ww} [m^2/s^2]"
    set ylabel "y/h [-]"
    set output "$image"
    set multiplot layout 1,11 title "Setup: $setup" noenhanced

    # Benchmark - Experimental
        # benchmark="$benchmarkFile"

    # OpenFOAM - Numerical
        samples="${sampleFiles[*]}"
        list="5h 10h 15h 20h 25h 30h 35h 40h 45h 50h 55h"

    do for [i = 1:11] {
        if (i != 1) { unset ylabel }
        plot \
            word(samples, i) u 7:1 t word(list, i) w l lw 2 lc rgb "#4169e1"
            # benchmark every 4 u 5:1 t "DNS" w p ps 2 pt 7 lc rgb "#D55E00"
    }

    unset multiplot
    unset output
PLT_RWW_VS_Y

    image="plots/$setup/Ruv_vs_y.png"

    gnuplot<<PLT_RUV_VS_Y
    set terminal pngcairo font "helvetica,20" size 5000, 1000
    set grid
    set xrange [0:1]
    set yrange [0:1]
    set key right top
    set key samplen 2
    set key spacing 0.75
    set xlabel "R_{uv} [m^2/s^2]"
    set ylabel "y/h [-]"
    set output "$image"
    set multiplot layout 1,11 title "Setup: $setup" noenhanced

    # Benchmark - Experimental
        # benchmark="$benchmarkFile"

    # OpenFOAM - Numerical
        samples="${sampleFiles[*]}"
        list="5h 10h 15h 20h 25h 30h 35h 40h 45h 50h 55h"

    do for [i = 1:11] {
        if (i != 1) { unset ylabel }
        plot \
            word(samples, i) u (-\$3):1 t word(list, i) w l lw 2 lc rgb "#4169e1"
            # benchmark every 4 u (-\$6):1 t "DNS" w p ps 2 pt 7 lc rgb "#D55E00"
    }

    unset multiplot
    unset output
PLT_RUV_VS_Y
}


plot_U_vs_y() {

    setup="$1"
    endTime="$2"

    # benchmarkFile="ReTau-395/dataset/chan395.means"

    n=0
    m=0
    for l in {1..11}
    do
        m=$(($m+5))
        sampleFiles[$n]="results/$setup/postProcessing/sample/$endTime/l${m}_columnAverage:columnAverage(UMean).xy"
        n=$(($n+1))
    done

    image="plots/$setup/u_vs_y.png"

    gnuplot<<PLT_U_VS_Y
    set terminal pngcairo font "helvetica,20" size 5000, 1000
    set grid
    set xrange [0:25]
    set yrange [0:1]
    set key left top
    set key samplen 2
    set key spacing 0.75
    set xlabel "u [m/s]"
    set ylabel "y/h [-]"
    set output "$image"
    set multiplot layout 1,11 title "Setup: $setup" noenhanced

    # Benchmark - Experimental
        # benchmark="$benchmarkFile"

    # OpenFOAM - Numerical
        samples="${sampleFiles[*]}"
        list="5h 10h 15h 20h 25h 30h 35h 40h 45h 50h 55h"

    do for [i = 1:11] {
        if (i != 1) { unset ylabel }
        plot \
            word(samples, i) u 2:1 t word(list, i) w l lw 2 lc rgb "#4169e1"
            # benchmark every 4 u 3:1 t "DNS" w p ps 2 pt 7 lc rgb "#D55E00"
    }

    unset multiplot
    unset output
PLT_U_VS_Y

    image="plots/$setup/v_vs_y.png"

    gnuplot<<PLT_V_VS_Y
    set terminal pngcairo font "helvetica,20" size 5000, 1000
    set grid
    set yrange [0:1]
    set key left top
    set key samplen 2
    set key spacing 0.75
    set xlabel "v [m/s]"
    set ylabel "y/h [-]"
    set output "$image"
    set multiplot layout 1,11 title "Setup: $setup" noenhanced

    # Benchmark - Experimental
        # benchmark="$benchmarkFile"

    # OpenFOAM - Numerical
        samples="${sampleFiles[*]}"
        list="5h 10h 15h 20h 25h 30h 35h 40h 45h 50h 55h"

    do for [i = 1:11] {
        if (i != 1) { unset ylabel }
        plot \
            word(samples, i) u 3:1 t word(list, i) w l lw 2 lc rgb "#4169e1"
            # benchmark every 4 u 5:1 t "DNS" w p ps 2 pt 7 lc rgb "#D55E00"
    }

    unset multiplot
    unset output
PLT_V_VS_Y

    image="plots/$setup/w_vs_y.png"

    gnuplot<<PLT_W_VS_Y
    set terminal pngcairo font "helvetica,20" size 5000, 1000
    set grid
    set yrange [0:1]
    set key left top
    set key samplen 2
    set key spacing 0.75
    set xlabel "w [m/s]"
    set ylabel "y/h [-]"
    set output "$image"
    set multiplot layout 1,11 title "Setup: $setup" noenhanced

    # Benchmark - Experimental
        # benchmark="$benchmarkFile"

    # OpenFOAM - Numerical
        samples="${sampleFiles[*]}"
        list="5h 10h 15h 20h 25h 30h 35h 40h 45h 50h 55h"

    do for [i = 1:11] {
        if (i != 1) { unset ylabel }
        plot \
            word(samples, i) u 4:1 t word(list, i) w l lw 2 lc rgb "#4169e1"
            # benchmark every 4 u 5:1 t "DNS" w p ps 2 pt 7 lc rgb "#D55E00"
    }

    unset multiplot
    unset output
PLT_W_VS_Y
}


plot_x_vs_cf() {

    setup="$1"
    endTime="$2"

    #benchmarkFile=N/A
    sampleFile="results/$setup/postProcessing/sampleCf/$endTime/planeAA_CfMean.xy"
    image="plots/$setup/x_vs_cf.png"

    gnuplot<<PLT_X_VS_CF
    set terminal pngcairo font "helvetica,20" size 1000, 1000
    set grid
    set xrange [0:60]
    set yrange [0:0.01]
    set key right top
    set key samplen 2
    set key spacing 0.75
    set xlabel "x/h [-]"
    set ylabel "C_f"
    set output "$image"

    # OpenFOAM - Numerical
        samples="$sampleFile"

    plot samples u 1:4 t "OpenFOAM" w l lw 2 lc rgb "#4169e1"
PLT_X_VS_CF
}


plot_yPlus_vs_u() {

    setup="$1"
    endTime="$2"
    nu="$3"

    # benchmarkFile="ReTau-395/dataset/chan395.means"
    sampleFile_patch="results/$setup/postProcessing/sample/$endTime/inletPatch_columnAverage:columnAverage(UMean).xy"
    sampleFile_cell="results/$setup/postProcessing/sample/$endTime/inletCell_columnAverage:columnAverage(UMean).xy"
    image_patch="plots/$setup/yPlus_vs_u_patch.png"
    image_cell="plots/$setup/yPlus_vs_u_cell.png"

    gnuplot<<PLT_Y_VS_U
    set terminal pngcairo font "helvetica,20" size 1000, 1000
    set grid
    set xrange [0:395]
    set yrange [0:20]
    set logscale x
    set key left top reverse
    set key samplen 2
    set key spacing 0.75
    set xlabel "y^+"
    set ylabel "u [m/s]"
    set output "$image_patch"
    set title "Setup: $setup (inlet patch face)" noenhanced

    # Benchmark - Experimental
        # benchmark="$benchmarkFile"

    # OpenFOAM - Numerical
        samples_patch="$sampleFile_patch"
        samples_cell="$sampleFile_cell"

    plot \
        samples_patch u (\$1/$nu):2 t "OpenFOAM" w l lw 2 lc rgb "#4169e1"
        # benchmark u 2:3 t "DNS" w p ps 2 pt 7 lc rgb "#D55E00"

    set output "$image_cell"
    set title "Setup: $setup (inlet patch cell)" noenhanced
    plot \
        samples_cell u (\$1/$nu):2 t "OpenFOAM" w l lw 2 lc rgb "#4169e1"
        # benchmark u 2:3 t "DNS" w p ps 2 pt 7 lc rgb "#D55E00"
PLT_Y_VS_U
}


plot_yPlus_vs_R_patch() {

    setup="$1"
    endTime="$2"
    nu="$3"

    # benchmarkFile="ReTau-395/dataset/chan395.reystress"
    sampleFile="results/$setup/postProcessing/sample/$endTime/inletPatch_columnAverage:columnAverage(UPrime2Mean).xy"
    imageUU="plots/$setup/yPlus_vs_Ruu_patch.png"
    imageVV="plots/$setup/yPlus_vs_Rvv_patch.png"
    imageWW="plots/$setup/yPlus_vs_Rww_patch.png"
    imageUV="plots/$setup/yPlus_vs_Ruv_patch.png"

    gnuplot<<PLT_Y_VS_R_PATCH
    set terminal pngcairo font "helvetica,20" size 1000, 1000
    set grid
    set xrange [0:395]
    set yrange [-1:8]
    set logscale x
    set key top right
    set key samplen 2
    set key spacing 0.75
    set xlabel "y^+"
    set ylabel "(uu)^+"
    set output "$imageUU"
    set title "Setup: $setup (inlet patch face)" noenhanced

    # Benchmark - DNS
        # benchmark = "$benchmarkFile"

    # Samples - OpenFOAM
        samples="$sampleFile"

    plot \
        samples u (\$1/$nu):2 t "OpenFOAM" w l lw 2 lc rgb "#4169e1"
        # benchmark u 2:3 t "DNS" w l lw 2 dt 2 lc rgb "#D55E00"

    set output "$imageVV"
    set ylabel "(vv)^+"
    plot \
        samples u (\$1/$nu):5 t "OpenFOAM" w l lw 2 lc rgb "#4169e1"
        # benchmark u 2:4 t "DNS" w l lw 2 dt 2 lc rgb "#D55E00"

    set output "$imageWW"
    set ylabel "(ww)^+"
    plot \
        samples u (\$1/$nu):7 t "OpenFOAM" w l lw 2 lc rgb "#4169e1"
        # benchmark u 2:5 t "DNS" w l lw 2 dt 2 lc rgb "#D55E00"

    set output "$imageUV"
    set ylabel "(uv)^+"
    plot \
        samples u (\$1/$nu):(-\$3) t "OpenFOAM" w l lw 2 lc rgb "#4169e1"
        # benchmark u 2:(\$6*-1) t "DNS" w l lw 2 dt 2 lc rgb "#D55E00"
PLT_Y_VS_R_PATCH
}


plot_yPlus_vs_R_cell() {

    setup="$1"
    endTime="$2"
    nu="$3"

    endTime=$(foamDictionary results/$setup/settings/controlDict -entry endTime -value)
    # benchmarkFile="ReTau-395/dataset/chan395.reystress"
    sampleFile="results/$setup/postProcessing/sample/$endTime/inletCell_columnAverage:columnAverage(UPrime2Mean).xy"
    imageUU="plots/$setup/yPlus_vs_Ruu_cell.png"
    imageVV="plots/$setup/yPlus_vs_Rvv_cell.png"
    imageWW="plots/$setup/yPlus_vs_Rww_cell.png"
    imageUV="plots/$setup/yPlus_vs_Ruv_cell.png"

    gnuplot<<PLT_Y_VS_R_CELL
    set terminal pngcairo font "helvetica,20" size 1000, 1000
    set grid
    set xrange [0:395]
    set yrange [-1:8]
    set logscale x
    set key top right
    set key samplen 2
    set key spacing 0.75
    set xlabel "y^+"
    set ylabel "(uu)^+"
    set output "$imageUU"
    set title "Setup: $setup (inlet patch cell)" noenhanced

    # Benchmark - DNS
        # benchmark = "$benchmarkFile"

    # Samples - OpenFOAM
        samples="$sampleFile"

    plot \
        samples u (\$1/$nu):2 t "OpenFOAM" w l lw 2 lc rgb "#4169e1"
        # benchmark u 2:3 t "DNS" w l lw 2 dt 2 lc rgb "#D55E00"

    set output "$imageVV"
    set ylabel "(vv)^+"
    plot \
        samples u (\$1/$nu):5 t "OpenFOAM" w l lw 2 lc rgb "#4169e1"
        # benchmark u 2:4 t "DNS" w l lw 2 dt 2 lc rgb "#D55E00"

    set output "$imageWW"
    set ylabel "(ww)^+"
    plot \
        samples u (\$1/$nu):7 t "OpenFOAM" w l lw 2 lc rgb "#4169e1"
        # benchmark u 2:5 t "DNS" w l lw 2 dt 2 lc rgb "#D55E00"

    set output "$imageUV"
    set ylabel "(uv)^+"
    plot \
        samples u (\$1/$nu):(-\$3) t "OpenFOAM" w l lw 2 lc rgb "#4169e1"
        # benchmark u 2:(\$6*-1) t "DNS" w l lw 2 dt 2 lc rgb "#D55E00"
PLT_Y_VS_R_CELL
}


plot_R_patch() {

    setup="$1"
    endTime="$2"

    # benchmarkFile="ReTau-395/dataset/chan395.reystress"
    sampleFile="results/$setup/postProcessing/sample/$endTime/inletPatch_columnAverage:columnAverage(UPrime2Mean).xy"
    image="plots/$setup/R_patch.png"

    gnuplot<<PLT_R_PATCH
    set terminal pngcairo font "helvetica,20" size 1000, 1000
    set grid
    set key top right
    set xrange [0:1]
    set yrange [-1:8]
    set key samplen 2
    set key spacing 0.75
    set xlabel "Channel height [m]"
    set ylabel "<u_i^' u_i^'> [m^2/s^2]"
    set offset .05, .05
    set output "$image"
    set title "Reynolds stresses on patch"

    # Benchmark - DNS
        # benchmark = "$benchmarkFile"

    # Samples - OpenFOAM
        samples="$sampleFile"

    plot \
        samples u 1:2 t "<u^' u^'>" w l lw 2 lc rgb "#009E73", \
        samples u 1:5 t "<v^' v^'>" w l lw 2 lc rgb "#F0E440", \
        samples u 1:7 t "<w^' w^'>" w l lw 2 lc rgb "#0072B2", \
        samples u 1:3 t "<u^' v^'>" w l lw 2 lc rgb "#D55E00"
        #benchmark u 1:3 t "<u^' u^'>_{DNS}" w l lw 2 dt 2 lc rgb "#009E73", \
        #benchmark u 1:4 t "<v^' v^'>_{DNS}" w l lw 2 dt 2 lc rgb "#F0E440", \
        #benchmark u 1:5 t "<w^' w^'>_{DNS}" w l lw 2 dt 2 lc rgb "#0072B2", \
        #benchmark u 1:6 t "<u^' v^'>_{DNS}" w l lw 2 dt 2 lc rgb "#D55E00"
PLT_R_PATCH
}


plot_R_cell() {

    setup="$1"
    endTime="$2"

    # benchmarkFile="ReTau-395/dataset/chan395.reystress"
    sampleFile="results/$setup/postProcessing/sample/$endTime/inletCell_columnAverage:columnAverage(UPrime2Mean).xy"
    image="plots/$setup/R_cell.png"

    gnuplot<<PLT_R_CELL
    set terminal pngcairo font "helvetica,20" size 1000, 1000
    set grid
    set key top right
    set xrange [0:1]
    set yrange [-1:8]
    set key samplen 2
    set key spacing 0.75
    set xlabel "Channel height [m]"
    set ylabel "<u_i^' u_i^'> [m^2/s^2]"
    set offset .05, .05
    set output "$image"
    set title "Reynolds stresses on cell"

    # Benchmark - DNS
        # benchmark = "$benchmarkFile"

    # Samples - OpenFOAM
        samples="$sampleFile"

    plot \
        samples u 1:2 t "<u^' u^'>" w l lw 2 lc rgb "#009E73", \
        samples u 1:5 t "<v^' v^'>" w l lw 2 lc rgb "#F0E440", \
        samples u 1:7 t "<w^' w^'>" w l lw 2 lc rgb "#0072B2", \
        samples u 1:3 t "<u^' v^'>" w l lw 2 lc rgb "#D55E00"
        #benchmark  u 1:3 t "<u^' u^'>_{DNS}" w l lw 2 dt 2 lc rgb "#009E73", \
        #benchmark  u 1:4 t "<v^' v^'>_{DNS}" w l lw 2 dt 2 lc rgb "#F0E440", \
        #benchmark  u 1:5 t "<w^' w^'>_{DNS}" w l lw 2 dt 2 lc rgb "#0072B2", \
        #benchmark  u 1:6 t "<u^' v^'>_{DNS}" w l lw 2 dt 2 lc rgb "#D55E00"
PLT_R_CELL
}


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

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

# Check directory: "results"
[ -d "results" ] || {
    echo "No results directory found - skipping graph creation" 1>&2
    exit 1
}


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

for setup in $setups
do

    echo ""
    echo "# Plots for the setup: $setup"
    echo ""

    dirPlots="plots/$setup"
    [ -d "$dirPlots" ] || mkdir -p "$dirPlots"

    # few manipulations
    endTime=$(foamDictionary results/$setup/settings/controlDict -entry endTime -value)
    nu=$(foamDictionary results/$setup/settings/transportProperties -entry nu | sed 's|^.*\s\(.*\);|\1|g')

    plot_yPlus_vs_u "$setup" "$endTime" "$nu"

    plot_yPlus_vs_R_patch "$setup" "$endTime" "$nu"

    plot_yPlus_vs_R_cell "$setup" "$endTime" "$nu"

    plot_R_patch "$setup" "$endTime"

    plot_R_cell "$setup" "$endTime"

    plot_R_vs_y "$setup" "$endTime"

    plot_U_vs_y "$setup" "$endTime"

    plot_x_vs_cf "$setup" "$endTime"

done


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