#!/bin/bash
set -e

for arg in "$@"; do
    case "$arg" in
    --no-github) NO_GITHUB=1 ;;
    --no-codeberg) NO_CODEBERG=1 ;;
    --no-flowcontrol) NO_FLOWCONTROL=1 ;;
    --allow-dirty) ALLOW_DIRTY=1 ;;
    esac
done

builddir="nightly-build"

DESTDIR="$(pwd)/$builddir"
BASEDIR="$(cd "$(dirname "$0")/.." && pwd)"
APPNAME="$(basename "$BASEDIR")"
title="$APPNAME nightly build"
repo="neurocyte/$APPNAME-nightly"

release_notes="$BASEDIR/$builddir-release-notes"

cd "$BASEDIR"

if [ -e "$DESTDIR" ]; then
    echo directory \"$builddir\" already exists
    exit 1
fi

if [ -e "$release_notes" ]; then
    echo file \""$release_notes"\" already exists
    exit 1
fi

DIFF="$(git diff --stat --patch HEAD)"

if [ -z "$ALLOW_DIRTY" ]; then
    if [ -n "$DIFF" ]; then
        echo there are outstanding changes:
        echo "$DIFF"
        exit 1
    fi

    UNPUSHED="$(git log --pretty=oneline '@{u}...')"

    if [ -n "$UNPUSHED" ]; then
        echo there are unpushed commits:
        echo "$UNPUSHED"
        exit 1
    fi
fi

# get latest version tag

if [ -z "$NO_FLOWCONTROL" ]; then
    last_nightly_version=$(curl -s https://git.flow-control.dev/api/v1/repos/neurocyte/flow-nightly/releases/latest | jq -r .tag_name)
elif [ -z "$NO_GITHUB" ]; then
    last_nightly_version=$(curl -s "https://api.github.com/repos/$repo/releases/latest" | jq -r .tag_name)
elif [ -z "$NO_CODEBERG" ]; then
    last_nightly_version=$(curl -s https://codeberg.org/api/v1/repos/neurocyte/flow-nightly/releases/latest | jq -r .tag_name)
fi
[ -z "$last_nightly_version" ] && {
    echo "failed to fetch $title latest version"
    exit 1
}

local_version="$(git --git-dir "$BASEDIR/.git" describe)"
if [ "$1" != "--no-github" ]; then
    if [ "$local_version" == "$last_nightly_version" ]; then
        echo "$title is already at version $last_nightly_version"
        exit 1
    fi
fi

echo
echo "building $title version $local_version... (previous $last_nightly_version)"
echo
git log "${last_nightly_version}..HEAD" --pretty="format:neurocyte/$APPNAME@%h %s"
echo
echo running tests...

./zig build test

echo building...

./zig build -Dpackage_release --prefix "$DESTDIR/build"

VERSION=$(/bin/cat "$DESTDIR/build/version")

git archive --format=tar.gz --output="$DESTDIR/flow-$VERSION-source.tar.gz" HEAD
git archive --format=zip --output="$DESTDIR/flow-$VERSION-source.zip" HEAD

cd "$DESTDIR/build"

TARGETS=$(/bin/ls)

for target in $TARGETS; do
    if [ -d "$target" ]; then
        cd "$target"
        if [ "${target:0:8}" == "windows-" ]; then
            echo packing zip "$target"...
            zip -r "../../${APPNAME}-${VERSION}-${target}.zip" ./*
            cd ..
        else
            echo packing tar "$target"...
            tar -czf "../../${APPNAME}-${VERSION}-${target}.tar.gz" -- *
            cd ..
        fi
    fi
done

cd ..
rm -r build

TARFILES=$(/bin/ls)

for tarfile in $TARFILES; do
    echo signing "$tarfile"...
    gpg --local-user 4E6CF7234FFC4E14531074F98EB1E1BB660E3FB9 --detach-sig "$tarfile"
    sha256sum -b "$tarfile" >"${tarfile}.sha256"
done

echo "done making $title $VERSION @ $DESTDIR"
echo

/bin/ls -lah

cd ..

{
    echo "## commits in this build"
    echo
    git log "${last_nightly_version}..HEAD" --pretty="format:neurocyte/$APPNAME@%h %s"
    echo
    echo

    echo "## contributors"
    git shortlog -s -n "${last_nightly_version}..HEAD" | cut -b 8-
    echo

    echo "## downloads"
    echo "[flow-control.dev](https://git.flow-control.dev/neurocyte/flow-nightly/releases/tag/$VERSION) (source only)"
    echo "[github.com](https://github.com/neurocyte/flow-nightly/releases/tag/$VERSION) (binaries & source)"
    echo "[codeberg.org](https://codeberg.org/neurocyte/flow-nightly/releases/tag/$VERSION) (binaries & source)"
} >"$release_notes"

cat "$release_notes"

ASSETS=""

if [ -z "$NO_FLOWCONTROL" ]; then
    ASSETS="$ASSETS --asset $DESTDIR/flow-${VERSION}-source.tar.gz"
    ASSETS="$ASSETS --asset $DESTDIR/flow-${VERSION}-source.tar.gz.sig"
    ASSETS="$ASSETS --asset $DESTDIR/flow-${VERSION}-source.tar.gz.sha256"
    ASSETS="$ASSETS --asset $DESTDIR/flow-${VERSION}-source.zip"
    ASSETS="$ASSETS --asset $DESTDIR/flow-${VERSION}-source.zip.sig"
    ASSETS="$ASSETS --asset $DESTDIR/flow-${VERSION}-source.zip.sha256"
    echo uploading to git.flow-control.dev
    tea releases create --login flow-control --repo "$repo" --tag "$VERSION" --title "$title $VERSION" --note-file "$release_notes" \
        $ASSETS
fi

if [ -z "$NO_CODEBERG" ]; then
    for a in $DESTDIR/*; do
        ASSETS="$ASSETS --asset $a"
    done
    echo uploading to codeberg.org
    tea releases create --login codeberg --repo "$repo" --tag "$VERSION" --title "$title $VERSION" --note-file "$release_notes" \
        $ASSETS
fi

if [ -z "$NO_GITHUB" ]; then
    echo uploading to github.com
    gh release create "$VERSION" --repo "$repo" --title "$title $VERSION" --notes-file "$release_notes" $DESTDIR/*
fi