#!/bin/bash
# SPDX-License-Identifier: LGPL-3.0-or-later
# See Notices.txt for copyright information
set -e

function build_in_container()
{
    if [[ "$0" != "/build.sh" ]]; then
        echo "you shouldn't run this outside of the container being built" >&2
        return 1
    fi
    set -xe
    mkdir -p /build
    cd /build
    apt update -qq
    apt install -qqy \
        bison \
        build-essential \
        ccache \
        clang \
        cmake \
        cvc5 \
        default-jre-headless \
        flex \
        g++ \
        gawk \
        git \
        libantlr4-runtime-dev \
        libboost-filesystem-dev \
        libboost-iostreams-dev \
        libboost-program-options-dev \
        libboost-python-dev \
        libboost-system-dev \
        libboost-thread-dev \
        libeigen3-dev \
        libffi-dev \
        libreadline-dev \
        lld \
        openfpgaloader \
        pkg-config \
        python3 \
        python3-click \
        python3-venv \
        tcl-dev \
        uuid-dev \
        wget \
        zlib1g-dev

    update-ccache-symlinks  # ccache seems to miss cc/c++ when installing, try to fix that here

    export PATH="/usr/lib/ccache:$PATH"

    python3 -m venv /opt/fayalite-deps/venv
    source /opt/fayalite-deps/venv/bin/activate

    git clone https://github.com/SymbiFlow/prjxray.git /build/prjxray
    cd /build/prjxray
    git checkout c9f02d8576042325425824647ab5555b1bc77833
    git submodule update --init --recursive
    mkdir -p build
    cd build
    cmake ..
    make -j$(nproc)
    make install
    cd ..
    sed -i 's/-e //' requirements.txt
    pip install -r requirements.txt

    git clone https://github.com/openXC7/prjxray-db.git /opt/fayalite-deps/prjxray-db
    cd /opt/fayalite-deps/prjxray-db
    git checkout 381966a746cb4cf4a7f854f0e53caa3bf74fbe62

    git clone https://github.com/chipsalliance/f4pga-xc-fasm.git /build/f4pga-xc-fasm
    cd /build/f4pga-xc-fasm
    git checkout 25dc605c9c0896204f0c3425b52a332034cf5e5c
    pip install .

    git clone https://github.com/openXC7/nextpnr-xilinx.git /build/nextpnr-xilinx
    cd /build/nextpnr-xilinx
    git checkout 724db28b41e68568690a5ea1dd9ce5082362bb91
    git submodule update --init --recursive
    mkdir -p build
    cd build
    cmake -DARCH=xilinx -DUSE_OPENMP=ON -DBUILD_GUI=OFF ..
    make -j$(nproc)
    make install
    install bbasm /usr/local/bin/

    cd /build
    wget -O firrtl.tar.gz https://github.com/llvm/circt/releases/download/firtool-1.86.0/firrtl-bin-linux-x64.tar.gz
    sha256sum -c - <<<'bf6f4ab18ae76f135c944efbd81e25391c31c1bd0617c58ab0592640abefee14  firrtl.tar.gz'
    tar -xvaf firrtl.tar.gz
    install firtool-1.86.0/bin/firtool /usr/local/bin/

    # TODO: add yosys, sby, and z3

    # get rid of caches and stuff
    rm -rf \
        /build \
        /var/cache/apt/*.bin \
        /var/cache/apt/archives/*.deb \
        /var/cache/apt/archives/lock \
        /var/lib/apt/lists/*Packages* \
        /var/lib/apt/lists/*Release* \
        /var/lib/apt/lists/lock \
        /etc/apt/apt.conf.d/01autoremove-kernels \
        /var/log/apt/history.log \
        /var/log/apt/term.log \
        /var/lib/systemd/catalog/database
}

function build_container()
{
    rm -rf build-container/ build/
    skopeo copy docker://debian:12 oci:build-container:latest
    proot -0 umoci unpack --image=build-container:latest build
    cp "$0" build/rootfs/build.sh
    mkdir -p .cache/ccache
    mkdir -p .cache/apt
    proot -S build/rootfs \
        -b .cache/ccache:/root/.ccache \
        -b .cache/apt:/var/cache/apt \
        env -i -C / \
        "PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin" \
        "TERM=xterm" \
        "HOME=/root" \
        "CCACHE_COMPILERCHECK=content" \
        /build.sh --build-in-container < /dev/null
    rm build/rootfs/build.sh
    proot -0 umoci repack --image=build-container:latest build
}

if [[ "$*" == "--build-in-container" ]]; then
    build_in_container
else
    build_container
fi