#!/usr/bin/env sh
# Builds the talk release artifacts for all target platforms, reproducibly
# with nothing but the Go toolchain (no GoReleaser needed; this way the same
# step runs identically locally, in Gitea Actions and in nix).
#
# Asset contract (agent-lib pattern, the fleet rollout pins to it):
#   dist/talk_<os>_<arch>[.exe]   static binary, CGO_ENABLED=0
#   dist/checksums.txt            sha256 per asset (sha256sum format)
#
# Usage:  scripts/release.sh [VERSION]      (default: git describe, else "dev")
# Env:    TARGETS="linux/amd64 ..." overrides the matrix.
set -eu

cd "$(dirname "$0")/.."
VERSION="${1:-$(git describe --tags --always --dirty 2>/dev/null || echo dev)}"
VERSION="${VERSION#v}"
COMMIT="$(git rev-parse --short HEAD 2>/dev/null || echo unknown)"
TARGETS="${TARGETS:-linux/amd64 linux/arm64 darwin/amd64 darwin/arm64 windows/amd64 windows/arm64}"
DIST=dist

rm -rf "$DIST"
mkdir -p "$DIST"
for target in $TARGETS; do
  os="${target%/*}"
  arch="${target#*/}"
  out="$DIST/talk_${os}_${arch}"
  [ "$os" = windows ] && out="$out.exe"
  echo "build $out"
  CGO_ENABLED=0 GOOS="$os" GOARCH="$arch" go build -trimpath \
    -ldflags "-s -w -X main.version=$VERSION -X main.commit=$COMMIT" \
    -o "$out" ./cmd/talk
done
(cd "$DIST" && sha256sum talk_* > checksums.txt)
echo
echo "Version $VERSION ($COMMIT):"
cat "$DIST/checksums.txt"