#!/usr/bin/env bash
# Deklarix — Build-Skript (amd64 + arm64)
#
# Verwendung:
#   ./scripts/build.sh [version]          # Beide Architekturen
#   ./scripts/build.sh [version] amd64    # Nur amd64
#   ./scripts/build.sh [version] arm64    # Nur arm64
#
# Ausgabe: dist/deklarix_<version>_<arch>
#
# Release-Prozess:
#   1. VERSION erhöhen (Semantic Versioning: MAJOR.MINOR.PATCH)
#   2. ./scripts/build.sh <version>
#   3. ./scripts/test.sh
#   4. git tag v<version> && git push origin v<version>

set -euo pipefail

SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
REPO_DIR="$(cd "$SCRIPT_DIR/.." && pwd)"
VERSION="${1:-0.0.1}"
ARCH_FILTER="${2:-both}"

GRN='\033[0;32m'; BLD='\033[1m'; NC='\033[0m'
log() { echo -e "${GRN}[build]${NC} $*"; }

export PATH=$PATH:/usr/local/go/bin

command -v go >/dev/null || { echo "Go nicht gefunden — PATH: $PATH"; exit 1; }

mkdir -p "$REPO_DIR/dist"

log "Version: $VERSION  |  Go: $(go version)"

ARCHS=()
case "$ARCH_FILTER" in
    amd64) ARCHS=("amd64") ;;
    arm64) ARCHS=("arm64") ;;
    *)     ARCHS=("amd64" "arm64") ;;
esac

for ARCH in "${ARCHS[@]}"; do
    OUT="$REPO_DIR/dist/deklarix_${VERSION}_${ARCH}"
    log "Baue $ARCH → $OUT"
    GOARCH=$ARCH GOOS=linux go build \
        -ldflags="-X main.Version=${VERSION} -s -w" \
        -o "$OUT" \
        ./cmd/server/
    log "$ARCH fertig: $(du -sh "$OUT" | cut -f1)"
done

log "Build abgeschlossen ✓"