#!/bin/bash
set -e

cd "$(dirname "$0")"

VERSION=$(git describe --tags --always --dirty 2>/dev/null || echo "dev")

show_help() {
    echo "YOYO 编译脚本"
    echo ""
    echo "用法:"
    echo "  ./build.sh              构建当前平台，输出 yoyo"
    echo "  ./build.sh <平台>       交叉编译指定平台"
    echo "  ./build.sh -h           显示帮助"
    echo ""
    echo "参数:"
    echo "  -h                      显示帮助信息"
    echo "  -o <文件名>             指定输出文件名"
    echo ""
    echo "支持的平台:"
    echo "  linux/amd64, linux/arm64"
    echo "  darwin/amd64, darwin/arm64"
    echo "  windows/amd64"
    echo ""
    echo "示例:"
    echo "  ./build.sh                          # 构建当前平台"
    echo "  ./build.sh linux/amd64              # 编译 Linux x64"
    echo "  ./build.sh darwin/arm64             # 编译 macOS ARM"
    echo "  ./build.sh windows/amd64 -o app.exe # 编译 Windows x64，自定义输出名"
    echo ""
    echo "输出文件名格式: yoo-<os>-<arch>[.exe]"
    echo "  yoo-linux-amd64"
    echo "  yoo-darwin-arm64"
    echo "  yoo-windows-amd64.exe"
}

OUTPUT_NAME="yoyo"

while [[ $# -gt 0 ]]; do
    case $1 in
        -h|--help)
            show_help
            exit 0
            ;;
        -o|--output)
            OUTPUT_NAME="$2"
            shift 2
            ;;
        linux/amd64)
            GOOS=linux GOARCH=amd64
            PLATFORM="linux-amd64"
            shift
            ;;
        linux/arm64)
            GOOS=linux GOARCH=arm64
            PLATFORM="linux-arm64"
            shift
            ;;
        darwin/amd64)
            GOOS=darwin GOARCH=amd64
            PLATFORM="darwin-amd64"
            shift
            ;;
        darwin/arm64)
            GOOS=darwin GOARCH=arm64
            PLATFORM="darwin-arm64"
            shift
            ;;
        windows/amd64)
            GOOS=windows GOARCH=amd64
            CGO_ENABLED=0
            PLATFORM="windows-amd64"
            if [[ "$OUTPUT_NAME" == "yoyo" ]]; then
                OUTPUT_NAME="yoo-windows-amd64.exe"
            fi
            shift
            ;;
        *)
            echo "未知平台: $1"
            show_help
            exit 1
            ;;
    esac
done

echo "Building yoyo version: $VERSION"

BUILD_CMD="go build -buildvcs=false -ldflags \"-s -w -X github.com/titor/fanyi/internal/logo.version=${VERSION}\" -o \"$OUTPUT_NAME\" ./cmd/yoyo"

if [ -n "$GOOS" ]; then
    echo "Target: $PLATFORM"
    eval CGO_ENABLED=${CGO_ENABLED:-0} $BUILD_CMD
else
    eval CGO_ENABLED=${CGO_ENABLED:-0} $BUILD_CMD
fi

echo "Build complete: ./$OUTPUT_NAME"