#!/bin/bash
# GMSSH「系统调优」Go 版后端构建脚本
# 产出官方标准结构: dist/app/bin/{main, config.json, i18n/}
set -euo pipefail

export PATH=$PATH:/usr/local/go/bin
export GOPROXY=https://goproxy.cn,direct

CURDIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
cd "$CURDIR"

# 架构: 默认 amd64, 可用 ARCH=arm64 交叉编译
ARCH="${ARCH:-amd64}"
DIST_BIN="$CURDIR/dist/app/bin"

echo "🚀 开始构建 Go 版后端 (arch=$ARCH)..."

# 1. 编译 main
echo "⚙️  编译 main.go (GOOS=linux GOARCH=$ARCH)..."
GOOS=linux GOARCH="$ARCH" CGO_ENABLED=0 go build -trimpath -ldflags="-s -w" -o "$DIST_BIN/main" .
if [ ! -f "$DIST_BIN/main" ]; then
    echo "❌ 编译失败, 未找到产物"
    exit 1
fi
echo "✅ 编译完成: $DIST_BIN/main ($(stat -c%s "$DIST_BIN/main") bytes)"

# 2. 生成 config.json (官方格式, socket=app.sock)
echo "📝 生成 config.json..."
mkdir -p "$DIST_BIN"
cat > "$DIST_BIN/config.json" <<'JSONEOF'
{
  "test": {
    "jsonrpc": {
      "sockets": "app.sock"
    },
    "logger": {
      "path": "logs/",
      "file": "{Y-m-d}.log",
      "level": "info",
      "stdout": true,
      "rotateBackupLimit": 7,
      "rotateExpire": "1d"
    }
  },
  "prod": {
    "jsonrpc": {
      "sockets": "app.sock"
    },
    "logger": {
      "path": "../../logs/",
      "file": "{Y-m-d}.log",
      "level": "error",
      "stdout": false,
      "rotateBackupLimit": 30,
      "rotateExpire": "30d"
    }
  }
}
JSONEOF
echo "✅ config.json 已生成"

# 3. 生成 i18n (基础国际化文件)
echo "📝 生成 i18n..."
mkdir -p "$DIST_BIN/i18n"
cat > "$DIST_BIN/i18n/zh-CN.ini" <<'INIIEOF'
REQUIRE_VALIDATION_TM="该参数不能为空"
STATUS_OK="操作成功"
INIIEOF
cat > "$DIST_BIN/i18n/en.ini" <<'INIIEOF'
REQUIRE_VALIDATION_TM="This parameter cannot be empty"
STATUS_OK=" Operation successful"
INIIEOF
echo "✅ i18n 已生成"

# 4. 赋权
chmod +x "$DIST_BIN/main"

echo ""
echo "✅ 构建完成! 产物结构:"
find "$CURDIR/dist/app/bin" -type f | sed "s|$CURDIR/||"