#!/usr/bin/env bash

. /usr/share/makepkg/util/message.sh
colorize

Detect_CPU=$(gcc -c -Q -march=native --help=target | grep march | awk '{print $2}')

msg "Detected CPU architecture: $Detect_CPU"

cat << EOF

    Available CPU microarchitectures:

    1) AMD Opteron/Athlon64/Hammer/K8
    2) AMD Improved K8-family
    3) AMD K10-family
    4) AMD Family 10h (Barcelona)
    5) AMD Family 14h (Bobcat)
    6) AMD Family 16h (Jaguar)
    7) AMD Family 15h (Bulldozer)
    8) AMD Family 15h (Piledriver)
    9) AMD Family 15h (Steamroller)
   10) AMD Family 15h (Excavator)
   11) AMD Family 17h (Zen)
   
   12) Intel Bonnell family of low-power Atom processors (Bonnell)
   13) Intel Silvermont family of low-power Atom processors (Silvermont)
   14) Intel Core 2 and newer Core 2 Xeons (Xeon 51xx and 53xx) CPUs.
   15) Intel 1st Gen Core i3/i5/i7-family (Nehalem)
   16) Intel 1.5 Gen Core i3/i5/i7-family (Westmere)
   17) Intel 2nd Gen Core i3/i5/i7-family (Sandybridge)
   18) Intel 3rd Gen Core i3/i5/i7-family (Ivybridge)
   19) Intel 4th Gen Core i3/i5/i7-family (Haswell)
   20) Intel 5th Gen Core i3/i5/i7-family (Broadwell)
   21) Intel 6th Gen Core i3/i5/i7-family (Skylake)
   22) Intel 6th Gen Core i7/i9-family (Skylake X)
   23) Intel 8th Gen Core i3/i5/i7-family (Cannon Lake)
   24) Intel 8th Gen Core i7/i9-family (Ice Lake)

   25) Native optimizations autodetected by GCC

    0) Generic (default)
    
EOF

sleep 1
answer=$1

case $answer in
    1) Microarchitecture=CONFIG_MK8 ;;
    2) Microarchitecture=CONFIG_MK8SSE3 ;;
    3) Microarchitecture=CONFIG_MK10 ;;
    4) Microarchitecture=CONFIG_MBARCELONA ;;
    5) Microarchitecture=CONFIG_MBOBCAT ;;
    6) Microarchitecture=CONFIG_MJAGUAR ;;
    7) Microarchitecture=CONFIG_MBULLDOZER ;;
    8) Microarchitecture=CONFIG_MPILEDRIVER ;;
    9) Microarchitecture=CONFIG_MSTEAMROLLER ;;
   10) Microarchitecture=CONFIG_MEXCAVATOR ;;
   11) Microarchitecture=CONFIG_MZEN ;;
   12) Microarchitecture=CONFIG_MATOM ;;
   13) Microarchitecture=CONFIG_MSILVERMONT ;;
   14) Microarchitecture=CONFIG_MCORE2 ;;
   15) Microarchitecture=CONFIG_MNEHALEM ;;
   16) Microarchitecture=CONFIG_MWESTMERE ;;
   17) Microarchitecture=CONFIG_MSANDYBRIDGE ;;
   18) Microarchitecture=CONFIG_MIVYBRIDGE ;;
   19) Microarchitecture=CONFIG_MHASWELL ;;
   20) Microarchitecture=CONFIG_MBROADWELL ;;
   21) Microarchitecture=CONFIG_MSKYLAKE ;;
   22) Microarchitecture=CONFIG_MSKYLAKEX ;;
   23) Microarchitecture=CONFIG_MCANNONLAKE ;;
   24) Microarchitecture=CONFIG_MICELAKE ;;
   25) Microarchitecture=CONFIG_MNATIVE ;;
    *) default=CONFIG_GENERIC_CPU ;;
esac

warning "According to PKGBUILD variable _microarchitecture, your choice is $answer"
msg "Building this package for microarchitecture: $Microarchitecture$default"
sleep 5

sed -e 's|^CONFIG_GENERIC_CPU=y|# CONFIG_GENERIC_CPU is not set|g' -i .config
sed -e "s|^# $Microarchitecture is not set|$Microarchitecture=y|g" -i .config

echo